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DMD2401/L VSAT/SCPC Satellite Modem

1. V 35 37 Pin Signal 37 Pin Signal Description Direction Connector Connector J9 B GND 1 GND Signal Ground RTS 7 RS A Request to Send A Input D CTS 9 CS A Clear to Send A Output E DSR 11 DM A DSR Data Mode A Output F RR 13 RR A RLSD Receive Ready A Output P SD A 4 SD A Send Data A Input 1 C 1 5 5 8 22 SD B Send Data B Output R RD A 6 RD A Recieve Data A Input 1 C 4 T RD B 24 RD B Receive Data B Output U TT A 17 TT A Terminal Timing A Output W TT B 35 TT B Terminal Timing B Input V RT A 8 RT A Receive Timing A Output RT B 26 RT B Receive Timing B Input Y ST A 5 ST A Send Timing A Output AA ST B 23 ST B Send Timing B Output 6 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces 5 4 DMD2401 with RS 422 449 Data Interface EXT REF IN Figure 5 2 DMD2401 Satellite Modem w Asynchronous Data Connector 5 4 1 RCV IF IN J1 The Receive IF Input J1 is the 50 90 MHz and 100 180 MHz Demodulator IF Input 5 4 2 EXT REF IN J2 The External Reference Input Port J2 is used for injecting an external reference frequency into the modem The DMD2401 Master Oscillator is locked to this source All internally generated frequencies within the modem will attain the stability of the applied external reference The external reference must meet th
2. Version Displays the current firmware revision where is the Radyne ComStream part number and NN is the Radyne ComStream revision number Firmware Rev menu FPGA 1 FOXXXXNN Not Present Indicates whether or not the firmware where is the Radyne ComStream part number and NN is the Radyne ComStream revision number is present FPGA 2 FOXXXXNN Not Present Indicates whether the firmware is present Tx CPLD FOXXXXNN Not Present Indicates whether the firmware is present Rx CPLD FOXXXXNN Not Present Indicates whether the firmware is present Intf CPLD FOXXXXNN Not Present Indicates whether the firmware is present Intf TxDSP FOXXXXNN Not Present Indicates whether the firmware is present Intf RxDSP FOXXXXNN Not Present Indicates whether the firmware is present 4 20 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces 065 Rev 3 3 4 21 User Interfaces DaughterCPLD M amp C menu Term Baud Emulation Remote Mode Remote Addr Remote Baud DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem FOXXXXNN Not Present Indicates whether the firmware is present 300 115200 Indicates the Terminal Baud Rate VT100 ADDS VP WYSE 50 Allows the user to select the Terminal Emulation Mode for the Terminal Port RS 485 RS 232 Allows the user to select the Remote Port Emulation Mode
3. The stop bit 51 is mark Data flow remains a hold mode until 51 is replaced by a space If 51 is followed by a space the space character is considered a start ST and not part of the actual data Bo B 7 The above byte oriented protocol is standard for UART based serial communication ports such as Workstation or Personal Computer PC COM ports COM ports should be configured for 8 data bits no parity and one stop bit For example for 9600 baud operation COM ports should be configured as 9600 8 N 1 The COMMSPEC developed for use with the Radyne Link Level Protocol RLLP organizes the actual monitor and control data within a shell or protocol wrapper that surrounds the data The format and structure of the COMMSPEC message exchanges are described herein Decimal numbers have no suffix hexadecimal numbers end with a lower case h suffix and binary values have a lower case b suffix Thus 22 16h 000010110b The principal elements of a data frame in order of occurrence are summarized as follows lt SYN gt the message format header character or ASCII sync character that defines the beginning of amessage The lt SYN gt character value is always 16h 1 Byte BYTE COUNTS the Byte Count is the number of bytes in the DATA field two bytes SOURCE 10 the Source Identifier defines the multi drop address origin Note that all nodes a given control bus have a unique address that must
4. Modulator 1 I 34 Interface Framing Unit L Demodulator Figure 3 5 Tx Rx Terrestrial Loopback x Modulator Demodulator Figure 3 6 Tx Baseband Loopback Modulator Figure 3 7 Rx Baseband Loopback 1 Modulator Interface Framing Unit Interface raming Unit Fi Framing Unit Demodulator Figure 3 8 Tx Rx Baseband Loopback 065 Rev 3 3 3 15 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Modulator NI Demodulator Operation Interface Figure 3 9 IF Loopback 3 16 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces Section 4 User Interfaces 4 0 User Interfaces There are three user interfaces available for the DMD2401 These are Front Panel 1 2 Remote Port 3 Terminal 4 1 Front Panel User Interface The front panel of the DMD2401 allows for complete control and monitor of all DMD2401 parameters and functions via a keypad LCD display and status LEDs The front panel layout is shown in Figure 4 1 showing the location and labeling of the front panel The front panel is divided into three functional areas the LCD Display the Keypad and the LED Indicators each described below in Table 4 1 Figure 4 1 DMD2401 Front Panel Table 4 1 Item Number Description Function 1 L
5. 4 2 3 Demodulator Menu Options and Parameters Demod Mode 4 6 IBS D amp I Closed Net Used with IDR or IBS Interface Only Sets a number of parameters within the modem to meet a set specification The purpose is to eliminate keystrokes and potential compatibility problems Additionally data rates not covered by the given mode of operation will not be allowed If the mode of operation is selected after the data rate has been entered then the data rate must be compatible with the desired mode of operation or the mode will not be allowed The following parameters are set for the given mode of operation IDR Mode IESS 309 Data Rates 1 544 2 048 Mbps Framing Type 96 Kbps IDR Scrambler Type V 35 IESS Spectrum Mask Intelsat IBS Mode IESS 308 Data Rates 1 544 2 048 Mbps Framing Type 1 15 IBS Scrambler Type IBS Spectrum Mask Intelsat TM065 Rev 3 3 Demod IF menu Freq MHz Spectrum Inv Demodulation Swp Bounds Input Limit Impedance Demod Data menu Data Rate Conv Dec Diff Decode Descrmbl Sel Dscrmbl Ctrl Dmd Framing Data Invert 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces D amp I Mode IESS 308 Data Rates nx 64 Framing Type 1 15 IBS Scrambler Type IBS Spectrum Mask Intelsat Closed Net All possible combinations allowed 50 90 MHz 100 180 MHz or 950 1750
6. J9 J10 J8 J11 J12 J7 96 5 J14 J4 J15 33 J2 J16 J17 E O REF IN RCVIFIN MADE IN USA Figure 5 4 DMD2401 Satellite Modem w IDR and D amp I Rear Panel Connectors 5 6 1 RCV IF IN J1 The Receive IF Input J1 is the 50 90 MHz and 100 180 MHz Demodulator IF Input 5 6 2 EXT REF IN J2 The External Reference Input Port J2 is used for injecting an external reference frequency into the modem The DMD2401 Master Oscillator is locked to this source All internally generated frequencies within the modem will attain the stability of the applied external reference The external reference must meet the following parameters Frequency 10 MHz 9 MHz 5 MHz 2 048 MHz or 1 024 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 6 3 EXT CLK J3 The External Clock Port J3 is used for injecting an external data clock into the modem The data symbol clocks may then be selected to be locked to this source The external clock must meet the following requirements Frequency 9600 Hz to 2 048 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 6 4 XMIT IF OUT J4 The Transmit IF Output Port J4 is the 50 90 MHz and 100 180 MHz Modulator IF Output 5 6 5 TERMINAL J5 The Terminal Port J5 pinouts are listed in Table 5 2 5 16 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces 5 6 6 ALARM J6 The modem has
7. The DMD2401 Modulator is shipped fully assembled It does not require removal of the covers for any purpose in installation The only replaceable assembly in the unit is the data interface and is not intended to be accomplished in the field Should the power cable AC connector be of the wrong type for the installation either the cable or the power connector end should be replaced The power supply itself is designed for universal application using from 100 to 240 VAC 50 60 Hz 1 0A 065 Rev 3 3 2 1 Installation DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 2 3 Mounting Considerations When mounted in an equipment rack adequate ventilation must be provided The ambient temperature in the rack should be between 10 and 35 C and held constant for best equipment operation The air available to the rack should be clean and relatively dry The DMD2401 units may be stacked one on top of the other up to a maximum of 10 consecutive units before providing a 1 RU space for airflow Do not mount the DMD2401 an unprotected outdoor location where there is direct contact with rain snow wind or sun The DMD2401 is designed for indoor applications only The only tools required for rack mounting the DMD2401 is a set of four rack mounting screws and an appropriate screwdriver Rack mount brackets are an integral part of the cast front bezel of the unit and are not removable Shielded cables with the shield terminated to the conductive
8. 0 States 8 11 B 1 Description 8 11 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Introduction Section 1 Introduction 1 0 Description The Radyne Corporation DMD2401 and DMD2401L Satellite Modems Figure 1 1 are microprocessor controlled Binary Phase Shift Keyed BPSK Quadrature Phase Shift Keyed QPSK Offset Quadrature Phase Shift Keyed OQPSK or Trellis Coded 8 Phase Shift Keyed 8PSK Modulators Demodulators They are used as part of the transmitting and receiving ground equipment in a satellite communications system The modem is designed for service in an SCPC system where two modems are set for continuous operation with each other Note Unless specified DMD2401 denotes both the DMD2401 and DMD2401L units This versatile equipment package combines unsurpassed performance with numerous user friendly front panel programmable functions The DMD2401 provides selectable functions for Intelsat IBS IDR as well as closed networks All of the configuration monitor and control functions are available at the front panel Operating parameters such as variable data rates FEC code rate IF frequencies and IBS IDR framing can be readily set and reconfigured from the front panel by earth station operations personnel Additionally all functions can be accessed with a terminal or personal computer via a serial link for complete remote monitor and control capability The DMD2401 operates at all standar
9. BPSK OQPSK QPSK 8PSK Allows the user to select the modulation type 75Q 500 Allows the user to select the output impedance Refer to Table 1 1 for Data Rates Allows the user to set the Data Rate in Bps steps VIT 1 2 VIT 3 4 VIT 7 8 Optional SEQ 1 2 Optional SEQ 3 4 Optional SEQ 7 8 Optional TRE 2 3 Allows the user to select the Tx Code Rate and Type On Off Enables or disables the Differential Encoder None V 35 IESS V 35 CCITT V 35 EF IBS Reed Solomon V 35 EF RS Selects scrambler type Enable Disable Enables or disables scrambler operation 1 15 IBS 1 15 Async 96 Kbps IDR None Used with IDR IBS or Asynchronous Interface Only Selects the Frame Type 4 5 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Data Invert IDR OH Type Symbol Pair ReedSolomon menu ModRS Enable ModRS Codes ModRS Depth Normal Inverted Allows the user to invert the data Voice 64Kbit Available with 96 Kops IDR Framing Normal Swapped Available in BPSK Modulation Enable Disable Allows the user to enable or disable the Reed Solomon Encoder Any valid n k values can be entered refer to Appendix A Displays the currently used n and k Reed Solomon Codes In Closed Net Mode custom RS Codes may be selected 4 8 Displays the currently used Reed Solomon Interleaver Depth In Closed Net Mode a depth of 4 or 8 may be selected
10. Note The following two bytes apply only if an Asynchronous Interface Card or an IDR OR IBS Interface Card is installed AND the AUPC option is also installed If not set to zero Note AUPC minimum power level AUPC default power level AUPC max power level Signed Value 50 to 300 5 0 to 30 dBm Implied Decimal Point Note The following two bytes apply only if an Asynchronous Interface Card or an IDR OR IBS Interface Card is installed AND the AUPC option is also installed If not set to zero Note AUPC minimum power level AUPC default power level AUPC max power level Signed value 50 to 300 5 0 to 30 dBm Implied Decimal Point Note The following two bytes apply only if an Asynchronous Interface Card or an IDR OR IBS Interface Card is installed AND the AUPC option is also installed If not set to zero 4 61 User Interfaces lt 2 gt lt 1 gt lt 1 gt lt 1 gt 4 62 AUPC Default Power Level Daughter Card Fault Mask Transmit Mode Transmit IDR Overhead Mode IDR Backward Alarm Mask IDR Force Backward Alarm 1 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Note AUPC minimum power level lt AUPC default power level lt max power level Signed value 50 dBm to 300 5 0 to 30 dBm Implied Decimal Point Note The following byte applies only if an IDR OR IBS interface card is installed If not set to zero 0 Mask 1
11. Pass Fail No Yes Indicates an M amp C Microprocessor hardware failure Pass Fail No Yes Indicates that the External Reference PLL is not locked Pass Fail No Yes Indicates that the External Clock is not active Pass Fail No Yes Indicates no activity on the External Reference Pass Fail No Yes Indicates a failure on the Daughter Card Pass Fail No Yes Indicates that the modem is receiving an Rx Alarm from the modem that is receiving its data Pass Fail No Yes Indicates that the modem is receiving an Tx Alarm from the modem that is supplying its data Normal Alarm On Alarm Off Indicates the state of the Backward Alarm Ent Y Clr N Clears all Latched Alarms User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 4 2 7 System Menu Options and Parameters Control Mode Front Panel Terminal Computer Allows the user to select the active control source General menu Date YY MMM DD Displays and allows the user to enter the current date Time HH MM SS Displays and allows the user to enter the current time Backlight menu Level High Low Allows the user to enter the backlight intensity level Timeout 00 99 Allows the user to enter the length of time in seconds of keyboard inactivity before the backlight shuts off 00 no timeout Key Click On Off Allows the user to enable disable the audible click heard each time a key is pressed
12. 0 Internal 1 SCR 2 Ext BNC 4 48 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Alarm 1 Mask Major Alarms Alarm 2 Mask Minor Alarms Common Alarm 1 Mask Tx Circuit ID Tx Terrestrial Loopback Tx Baseband Loopback Reserved Reserved Data Invert Framing User Interfaces Bit 0 Transmit Processor Fault Bit 1 Transmit Output Power Level Fault Bit 2 Transmit Oversample PLL Lock Fault Bit 3 Transmit Composite Clock PLL Lock Fault Bit 4 IF Synthesizer Lock Fault Bit 5 Transmit FPGA Configuration Fault Bit 6 Transmit Forced Alarm Bit 7 External Reference PLL Lock Fault 0 Mask 1 Allow Bit 0 Terrestrial Clock Activity Detect Fault Bit 1 Internal Clock Activity Detect Fault Bit 2 Tx Sat Clock Activity Detect Fault Bit 3 Tx Data Activity Detect Fault Bit 4 Tx Data AIS Detect Fault Bit 5 Transmit EXT BNC Clock Activity Detect Fault Bit 6 Transmit Reed Solomon Fault Bit 7 Tx BUC Fault LBST only 0 Mask 1 Allow Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 5 V Alarm Bit 3 Interface FPGA Bit 4 2 Temperature Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Mask 1 Allow 24 ASCII Characters 0 Disabled 1 Enabled 0 Disabled 1 Enabled Ignore Ignore 0 Normal 1 Invert Note The following byte applies only if an Asynchronous IDR or IBS Interface is installed If not
13. 12 No Connection 13 No Connection 14 IBS Prompt 1 Prompt Alarm Out 1 C Output 15 IBS Prompt INC Prompt Alarm Out 1 Output 16 IBS Service 2 Service Alarm Out 2 Output 17 IBS Service 2 Service Alarm Out 2 NC Output 18 Not Used 19 Not Used 20 Not Used 21 Not Used 22 ESCBWI 1 Backward Alarm In 1 Input 23 Not Used 24 No Connected 25 No Connected Internally pulled 5 V on these pins Do not use as a power supply TMO65 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 5 11 ASYNC J15 Electrical Interfaces The Asynchronous Interface Port J15 is a 9 Pin Female D Connector Refer to Table 5 13 for connector pinouts Refer to Section 5 8 for configuration switch settings Table 5 13 Asynchronous Interface 9 Pin Female D Connector J15 Pin Number Signal Description Direction 1 485 Transmit Data RS485 Input 2 TXD 232 Transmit Data RS232 Input 3 RXD 232 Receive Data RS232 Output 5 GND Ground 4 Not Connected 9 RX 485 A Receive Data 485 Output 8 RX 485 B CTS Receive Data 485 Output 6 485 Transmit Data 485 Input 7 RTS Request to Send Input 065 Rev 3 3 5 15 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 6 DMD2401 IDR with D amp l
14. 2 ALARM k2 k4 Ver 2 IDR V 35 422 4 8 341223 2524 39 f RS 422 32 RX SAT l Normal 96kBit IDR Voice 0 0 Mask No No No No Figure 4 19 IDR RS 422 V 35 RS 232 Interface Control Terminal Screen 065 Rev 3 3 4 33 User Interfaces 1 Menu 2 Control Mode Terminal 3 Remote Mode RS 485 4 Remote Addr 32 6 Center Buffer Buffer Fill 50 GENERAL 31 EXC Clock 10000000 32 Ref Source Internal 33 Ext Ref Fq 10 000000 38 ForceTxBack Normal 42 Tx Ckt ID 43 Rx Ckt ID DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem IF Input dBm 61 1 0 V SW F04780 Ver 2 Eb No NO SYNC Intf Pres IDR V 35 422 Uncorrected SER NO SYNC 5 V Mon 44 8 Corrected BER NO SYNC 12 V Mon 412 4 Offset Hz 24999 12 V Mon 12 1 2047 Error Cnt NO SYNC Events 29 2047 NO SYNC 22222375 UNIVERSAL G 703 SYNCHRONOUS INTERFACE 15 SETUP RX SETUP 51 Tx Terr Intf RS 422 71 Rx Terr Intf RS 422 52 Clock Sel SCTE Ext 72 Buffer msec 32 53 Tx Clock Pol Auto 73 BufClk Sel RX SAT 54 SCT Source Internal 74 Buff Clk Pol Normal 55 Tx Framing 1 15 5 75 Rx Framing 1 15 IBS 56 TxAsync Port RS 485 76 RxAsync Port RS 485 ALARM Mask 80 Prompt P No 81 Service P No 82 BER No ALARM Mask 83 RxBack P No 64 TxBack P No Enter Selection Number Figure 4 20 IBS RS 422 V 35 RS 232 Interfa
15. 4 Bit 0 Buffer Clock Activity Detect Fault Bit 1 External BNC Activity Detect Fault Bit 2 Rx Satellite Clock Activity Detect Fault Bit 3 External Reference PLL Activity Fault Bits 4 7 Spares 0 Pass 1 Fail lt 1 gt Common Alarm Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 5 V Alarm Bit 3 Temperature Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail lt gt Reserved Ignore lt gt Latched Alarm 1 Bit Receive Processor Fault Bit 1 Signal Lock Fault Bit 2 Receive Satellite AIS Fault Bit 3 Rx AGC Input Level Fault Bit 4 Reed Solomon Sync Fault Bit 5 Reed Solomon Excessive Errors Fault Bit 6 Reed Solomon Uncorrectable Word Fault Bit 7 Receive Forced Alarm 0 Pass 1 Fail lt 1 gt Latched Alarm 2 Bit 0 Buffer Underflow Bit 1 Buffer Overflow Bit 2 Buffer Under 10 Bit 3 Buffer Over 90 065 Rev 3 3 4 73 User Interfaces lt 1 gt lt 1 gt lt 1 gt lt 4 gt lt 4 gt lt 2 gt lt 2 gt lt 2 gt lt 4 gt lt 2 gt lt 1 gt 4 74 Latched Alarm 3 Latched Alarm 4 Latched Comm Alarm Reserved Error Counter Test 2047 Error Counter Raw BER Mantissa Corrected BER Mantissa Eb No Offset Frequency Test 2047 Mantissa Raw BER Exponent Corrected BER Exponent Test 2047 BER DMD2401 DMD2401L DMD2401 IBS
16. 9 RS 485 RxD A Receive Data Input 5 2 9 DATA INTERFACE J9 The Data Interface Port J9 is used for Synchronous Data Interface and allows the use of RS 422 RS 232 and V 35 Interfaces It is a 37 Pin Female Connector Refer to Table 5 6 for RS 422 connector pinouts and Tables 5 7 and 5 8 for RS 232 and V 35 adapters Pin Number Signal Description Direction 4 SD A Send Data A Input 22 SD B Send Data B Input 5 ST A Send Timing A Output 23 ST B Send Timing B Output 6 RD A Receive Data A Output 24 RD B Receive Data B Output 7 RS A Request to Send A Input 25 RS B Request to Send B Input 8 Receive Timing Output 26 RT B Receive Timing B Output 9 CS A Clear to Send A Output 14 MF Mod Fault Open Collector Output 33 DF Demod Fault Open Collector Output 27 CS B Clear to Send B Output 11 DM A Data Mode A Output 29 DM B Data Mode B Output 13 RR A Receiver Ready A Output 31 RR B Receiver Ready B Output 5 4 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces 3 BAL EXC A External Clock A Input 21 BAL External Clock Input 16 RX 0 A Receive Octet A Output 34 RX 0 B
17. Allow Note The following byte applies only if an IDR OR IBS interface card is installed If not set to zero 0 Closed Net Mode 1 IDR Mode 2 IBS Mode 3 Drop amp Insert Mode Note The following byte applies only if an IDR OR IBS interface card is installed and the transmit mode parameter is set to IDR Mode If an IDR OR IBS interface card is not installed set to zero If an IDR OR IBS interface card is installed but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values but will be ignored 0 Voice 1 64 Kbit Data Note The following byte applies only if an IDR OR IBS interface card is installed and the transmit mode parameter is set to IDR Mode If an IDR OR IBS interface card is not installed set to zero If an IDR OR IBS interface card is installed but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values but will be ignored Bit 0 IDR Backward Alarm 1 Bit 1 IDR Backward Alarm 2 Bit 2 IDR Backward Alarm 3 Bit 3 IDR Backward Alarm 4 Bit 4 7 Spare 0 Mask 1 Allow Note The following byte applies only if an IDR OR IBS interface card is installed and the transmit mode parameter is set to IDR Mode If an IDR OR IBS interface card is not installed set to zero If an IDR OR IBS interface card is installed but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values
18. Brackets are optional values based upon factory settings They will only appear when AGC Voltage Section 4 2 5 is configured 4 24 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces EIIIIIIIIIIIIIIIII Main Menu IIIIIIIIIIIIIII odulator Controls Demodulator Controls Event Buffer Alarm Status Latched Alarms Interface Menu EIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIM Enter Selection Number 1 Main Menu IF Input dBm 31 3 7 V SW F04780 Ver 1 3 2 Control Mode Ft Panel Eb No gt 20 00 Intf Pres IDR G 703 3 Remote Mode RS 485 Uncorrected SER 0 E 5 5 V Mon 44 9 4 Remote Addr 101 Corrected BER 0 E 12 12 V Mon 12 6 Offset Hz 1 12 V Mon 11 9 6 Center Buffer 2047 Error Cnt NO SYNC Events 529 Buffer Fill 50 2047 BER NO SYNC 30 Mod Mode Closed Net 40 Mod Framing None 31 Frequency 70 000000 MHz 41 Carrier Ctl On 50 Data Invert Normal 32 Insert Err 1 42 Carrier Sel Normal 51 Output Pwr 5 0 33 Data Rate 2048000 BPS 43 Spectrum Normal 52 ReedSolomon Disable 34 EXC Clock 2048000 Hz 44 2047 Test 2047 On 53 Reed Sol N 219 35 Modulation QPSK 45 TxClock Sel SCTE Ext 54 Reed Sol K 201 36 Conv Encodr VIT 3 4 46 TxClock Pol Inverted 55 RS Depth 58 37 Scrmblr Ctl Enable 47 SCT Source Internal 56 Impedance 75 Ohm 38 Scrmblr Sel V 35 IESS 48 Terr Loop Off 39 Diff Encodr On 49 Base Loop Off Enter Selection Number Fig
19. Rx Setup menu Rx Ckt ID Buff Size Buff Clk Clk Polarity Rx Terr Intf Asynchronous Rx Async Port Rx G703 Intf Rx Univ Intf DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem RS 485 RS 232 Allows the user to select the Transmit Async Port type U E1 B E1 B T1 B8ZS 1 Allows the user to select the Transmit G 703 Interface type V 35 RS 422 RS 232 U E1 B E1 B T1 B8ZS 1 Allows the user to select the Transmit Universal Interface Type Enable Disable E1 Mode 30 PCM30C PCM31 PCM31C T1 Mode T1 D4 T1 ESF T1 D4 S T1 ESF S Allows the user entry of an Rx Circuit Identifier Circuits can be given up to an 11 character alphanumeric identity such as LINK1 11 128 Sets the Doppler Buffer Size in msec Only available when no Optimal Interface is installed SCTE Ext SCT Int Rx Sat Selects the Buffer Clock source Normal Inverted Selects the Buffer Clock polarity RS 422 V 35 RS 232 Allows the user to select the Transmit Interface Type Not available when G 703 Interface Type is installed Off On RS 485 RS 232 Allows the user to select the Receive Async Port type U E1 B E1 B T1 B8ZS 1 Allows the user to select the Receive G 703 Interface type V 35 RS 422 RS 232 U E1 B E1 B T1 B8ZS 1 Allows the user to select the Receive Universal Interface Type TM065 Rev 3 3
20. lt 1 gt Multiprotocol 0 RS 422 lt 00 gt Interface Type lt 1 gt G 703 Interface 0 G703T1AMI lt 00 gt Type lt gt BPSK Symbol 0 Normal lt 00 gt Pairing lt gt Receive Mode 0 Closed Net lt 00 gt lt gt T1 E1 Frame 0 Internal lt 00 gt Source lt 1 gt Receive IDR 0 Voice lt 00 gt Overhead Mode lt 1 gt Receive IDR No Alarms Masked lt FF gt Backward Alarm Mask 1 Interface Type 00 2 Receive ESC 44 20 dB lt FF gt lt DF gt Volume lt 2 gt Receive ESC 2 20 dB lt FF gt lt DF gt Volume lt 1 gt Alarm 5 Mask No Alarms Masked lt FF gt 4 98 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces 4 5 Terminal Port User Interface The Terminal Port of the DMD2401 allows for complete control and monitoring of all DMD2401 parameters and functions via an RS 232 Serial Interface 065 Rev 3 3 4 99 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem This Page is Intentionally Left Blank 4 100 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces Section 5 Electrical Interfaces 5 0 DMD2401 Connections All DMD2401 connections are made to labeled connectors located on the rear of the unit The connector definitions below are those on the DMD2401 unit Any connection interfacing to the DMD2401 must be the appropriate mating connector 5 1 AC Power Input Switch The AC Power Entry M
21. lt 2A1Ah gt Command a Demodulator s BER Exponent lt gt BER Measure Number of Bits in Measurement Period in Powers of Ten Period ex 6 10 Bits Opcode lt 2A1Ch gt Command Demodulator s Terrestrial Loopback lt gt Rx Terrestrial 0 Disabled 1 Enabled Loopback Opcode lt 2A1Dh gt Command Demodulator s Baseband Loopback lt 1 gt Rx Baseband 0 Disabled 1 Enabled Loopback Opcode lt 2A1Eh gt Command Demodulator s IF Loopback lt 1 gt Rx IF Loopback 0 Disabled 1 Enabled Opcode lt 2 2 gt Command a Demodulator s Async Terrestrial Interface Type 1 Demod Async Async Framing 0 No Framing Async Off 1 IBS Framing Terr Interface Async On 2 IBS Framing Async Off Type 1 Demod Async Async Baud Rate 0 1200 1 2400 2 4800 3 9600 4 Terr Interface 19200 5 50 6 110 7 300 8 600 Type lt 1 gt Demod Async Async Port Type 0 V 35 1 RS 422 Terr Interface Type lt 1 gt Demod Async Async Terr Intf Type 0 RS 422 1 V 35 2 RS 232 Terr Interface Type Opcode lt 2A20h gt Command Center Buffer No Parameters Opcode lt 2A31h gt Command Demodulator s Buffer Size Byte 1 2 buffer size in ms OR Byte 3 4 buffer size in bytes Either ms or bytes must be specified the other field should be OXfFFF 4 Buffer Size 4 4 13 3 Module Queries amp Commands Opcode lt 2403h gt Query a Modu
22. 065 Rev 3 3 Appendices 8 5 Appendices DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 144 124 126 128 130 131 132 133 134 135 136 137 138 139 140 141 142 143 145 125 127 129 131 132 133 134 135 136 137 138 139 140 141 142 143 144 146 126 128 130 132 133 134 135 136 137 138 139 140 141 142 143 144 145 147 129 131 133 134 135 136 137 138 139 140 141 142 143 144 145 146 148 130 132 134 135 136 137 138 139 140 141 142 143 144 145 146 147 149 131 133 135 136 137 138 139 140 141 142 143 144 145 146 147 148 150 132 134 135 137 138 139 140 141 142 143 144 145 146 147 148 149 151 133 135 136 138 139 140 141 142 143 144 145 146 147 148 149 150 152 133 136 137 139 140 141 142 143 144 145 146 147 148 149 150 151 153 134 136 138 140 141 142 143 144 145 146 147 148 149 150 151 152 154 135 137 139 140 142 143 144 145 146 147 148 149 150 151 152 153 155 136 138 140 141 143 144 145 146 147 148 149 150 151 152 153 154 156 137 139 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 157 138 140 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 158 139 141 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 159 140 142 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 160 140 143 144
23. 065 Rev 3 3 3 13 Operation DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 3 12 2 Baseband Loopback Baseband Loopback provides the following data loopback on the baseband or framing card and allows testing of the terrestrial interface of the modem Note On the DMD2401 a framing card is required to properly use any of the baseband loopback functionality Tx BB Loopback Terrestrial TX data after passing through the line interface and onto the baseband framing unit is looped back to the Rx data line drivers of the interface refer to Figure 3 6 Rx BB Loopback The Rx Data received by the satellite is passed through the interface and looped back through baseband framing unit then sent back through the interface for retransmission to the satellite providing a far end loopback refer to Figure 3 7 Tx Rx BB Loopback Provides both of the above loopbacks simultaneously refer to Figure 3 8 3 12 3 IF Loopback IF Loopback loops back the modulated IF Signal from the modulator to the demodulator refer to Figure 3 9 Modulator Demodulator Figure 3 3 Tx Terrestrial Loopback E Modulator il Demodulator 1 Figure 3 4 Rx Terrestrial Loopback 4 1 Interface Framing Unit ett 1 1 raming Unit T 1 1 L 3 14 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Operation
24. 146 147 148 149 150 151 152 153 154 155 156 157 158 159 161 141 144 145 147 148 149 150 151 152 153 154 155 156 157 158 159 160 162 142 144 146 148 149 150 151 152 153 154 155 156 157 158 159 160 161 163 143 145 147 149 150 151 152 153 154 155 156 157 158 159 160 161 162 164 144 146 148 150 151 152 153 154 155 156 157 158 159 160 161 162 163 165 145 147 149 150 152 153 154 155 156 157 158 159 160 161 162 163 164 166 146 148 150 151 153 154 155 156 157 158 159 160 161 162 163 164 165 167 147 149 151 152 154 155 156 157 158 159 160 161 162 163 164 165 166 168 150 152 153 154 156 157 158 159 160 161 162 163 164 165 166 167 169 151 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 170 152 153 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 171 152 154 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 172 153 155 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 8 6 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Appendices 173 154 156 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 174 155 157 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 175 156 158 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 176 1
25. 200 201 202 203 204 186 188 189 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 187 189 190 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 188 190 191 192 194 195 196 197 198 199 200 201 202 203 204 205 206 207 189 190 192 193 195 196 197 198 199 200 201 202 203 204 205 206 207 208 191 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 192 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 193 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 194 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 195 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 196 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 197 198 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 198 199 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 199 200 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 200 201 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 200 202 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 201 203 204 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 202 204 205 207 208 209
26. 32 255 Allows the user to select the Remote Port Multidrop Address 300 600 1200 2400 4800 9600 19200 Allows the user to select Remote Port Baud Rate 4 2 8 Test Menu Options and Parameters 2047 Test Tx Ins Error Rx 2047 Err Rx 2047 BER Clear 2047 4 22 None Tx Rx Tx Rx Allows the user to enable disable the 2047 Pattern Test Tx enables the Transmit Pattern Generator Rx enables the Receive Pattern Generator Tx Rx enables both 0000 9999 Allows the user to select the number of errors to insert Once the number of errors to insert has been selected pushing Enter causes the number of errors shown to be inserted in the data stream No Sync nnnnn Shows the number of errors detected by the 2047 pattern checker No Sync nnnn x 10 Shows the measured BER for the 2047 pattern Ent Y Clr Restarts the 2047 BER Test TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces Loopbacks Tx Terr Rx Terr Tx Rx Terr Tx BB Rx BB Tx Rx BB IF Terrestrial Loopback is performed at the Terrestrial Interface Tx Terr Sends Tx Terrestrial Data to Rx Data Out Rx Terr Distant Loop Sends received satellite data to the Modulator for transmission to the distant end Tx Rx Terr Enables both Baseband Loopback is performed at the interface between the Baseband Processor Card and the Modem Card This ensures Framer Deframer integ
27. 5 27 5 8 8 SWITCH INTERFACE J8 5 27 5 8 9 SD J9 5 29 5 8 10 DDO J10 5 29 5 8 11 IDI J11 5 29 065 Rev 3 3 xi Table of Contents DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 8 12 RD J12 5 30 5 8 13 ESC ALARMS J14 5 30 5 8 14 ESC 8K DATA J15 5 31 5 8 15 G 703 BAL J16 5 32 5 8 16 ESC 64K Data Voice Async J17 5 32 5 9 Async Port Configuration Switches 5 34 5 9 1 5 3771 Daughter Card 5 35 5 9 2 AS 4803 Daughter Card 5 36 Section 6 Maintenance 6 0 Periodic Maintenance 6 1 6 1 Troubleshooting 6 1 6 2 DMD2401 Fault Philosophy 6 1 6 2 1 Alarm Masks 6 2 6 2 2 Active Alarms 6 2 6 2 2 1 Major Alarms 6 2 6 2 2 2 Minor Alarms 6 2 6 2 2 3 Latched Alarms 6 2 6 3 DMD2401 Fault Tree Matrices 6 2 6 3 1 Interpreting the Matrices 6 4 6 4 DMD2401 Bit Error Rate BER Curves 6 4 6 5 DMD2401 AGC Curve 6 7 Section 7 Technical Specifications 7 0 Introduction 7 1 7 1 Transmit and Receive Data Rates 7 1 7 2 Modulator Specifications 7 1 7 3 Demodulator Specifications 7 1 7 4 Front Panel LED Indicators 7 2 7 5 Monitor and Control 7 3 7 6 Options 7 3 7 7 Environmental 7 3 7 8 Physical 7 3 xii 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Table of Contents Section 8 Appendices Appendix A Reed Solomon Codes 8 1 Appendix B Carrier Control 8 11
28. 50 52 53 54 55 56 57 58 59 61 41 46 49 51 53 54 55 56 57 58 59 60 62 42 47 50 52 54 55 56 57 58 59 60 61 63 48 51 53 54 56 57 58 59 60 61 62 64 48 52 54 55 56 57 58 59 60 61 62 63 65 49 52 55 56 57 58 59 60 61 62 63 64 66 50 53 55 57 58 59 60 61 62 63 64 65 67 51 54 56 58 59 60 61 62 63 64 65 66 68 51 55 57 59 60 61 62 63 64 65 66 67 69 52 56 58 60 61 62 63 64 65 66 67 68 70 53 56 59 60 62 63 64 65 66 67 68 69 71 54 57 60 61 63 64 65 66 67 68 69 70 72 54 58 60 62 63 64 65 66 67 68 69 70 71 73 55 59 61 63 64 65 66 67 68 69 70 71 72 74 56 60 62 64 65 66 67 68 69 70 71 72 73 75 57 60 63 65 66 67 68 69 70 71 72 73 74 76 57 61 64 66 67 68 69 70 71 72 73 74 75 77 58 62 65 66 68 69 70 71 72 73 74 75 76 78 59 63 65 67 69 70 71 72 73 74 75 76 77 79 60 64 66 68 70 71 72 73 74 75 76 77 78 80 60 64 67 69 70 72 73 74 75 76 77 78 79 81 61 65 68 70 71 72 73 74 75 76 77 78 79 80 82 62 66 69 71 72 73 74 75 76 77 78 79 80 81 83 63 67 70 72 73 74 75 76 77 78 79 80 81 82 84 68 70 72 74 75 76 77 78 79 80 81 82 83 85 68 71 73 75 76 77 78 79 80 81 82 83 84 065 Rev 3 3 8 3 Appendices DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 86 87 88
29. 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 8 4 69 72 74 76 77 78 79 80 81 82 83 84 85 70 73 75 77 78 79 80 81 82 83 84 85 86 71 74 76 77 79 80 81 82 83 84 85 86 87 72 75 77 78 80 81 82 83 84 85 86 87 88 72 75 78 79 80 81 82 83 84 85 86 87 88 89 73 76 78 80 81 82 83 84 85 86 87 88 89 90 74 77 79 81 82 83 84 85 86 87 88 89 90 91 75 78 80 82 83 84 85 86 87 88 89 90 91 92 76 79 81 83 84 85 86 87 88 89 90 91 92 93 76 80 82 84 85 86 87 88 89 90 91 92 93 94 77 80 83 84 86 87 88 89 90 91 92 93 94 95 78 81 84 85 87 88 89 90 91 92 93 94 95 96 79 82 84 86 88 89 90 91 92 93 94 95 96 97 80 83 85 87 88 90 91 92 93 94 95 96 97 98 80 84 86 88 89 90 91 92 93 94 95 96 97 98 99 81 85 87 89 90 91 92 93 94 95 96 97 98 99 100 82 85 88 90 91 92 93 94 95 96 97 98 99 100 101 83 86 89 91 92 93 94 95 96 97 98 99 100 101 102 84 87 90 91 93 94 95 96 97 98 99 100 101 102 103 88 90 92 94 95 96 97 98 99 100 101 102 103 104 89 91 93 95 96 97 98 99 100 101 102 103 104 105 90 92 94 96 97 98 99 100 101 102 103 104 105 106 90 93 95 96 98 99 100 101
30. AGC Voltage Bytes 1 2 Unsigned Binary Value Raw BER Bytes 1 2 Unsigned Binary Value Corrected BER Unsigned Binary Value 2 Decimal Places Implied Byte 3 Unsigned Binary Value Exponent Byte 3 Unsigned Binary Value Exponent Bit 0 Raw BER and Corrected BER Status 1 Valid Bit 1 Test 2047 BER Status 1 Valid Bits 2 3 EbNo Status 0 EbNo is Invalid 1 EbNo is Valid 2 EbNo is Smaller Than Indicated Value 3 EbNo is Greater Than Indicated Value Bits 4 7 Reserved Binary Value in 1 dB Steps Negative Sign Implied Signed Binary 0 Equal to 1 Greater Than 1 Less Than Value in 1 dB Steps Negative Sign Implied Hex decimal point implied Query a Demodulator s Lock Status lt 1 gt lt 4 gt lt 4 gt lt 1 gt lt 4 gt lt 1 gt lt 2 00 gt Lock Status Frequency Data Rate Sweep Boundary External Reference Freq Reference 065 Rev 3 3 Bit 0 Demod Chipset Lock 0 Unlocked 1 Locked Bit 1 Viterbi Lock 0 Unlocked 1 Locked Bit 2 Reed Solomon Lock 0 Unlocked 1 Locked Bit 3 Sequential Lock 0 Unlocked 1 Locked Bits 4 7 Spares Command a Demodulator s Configuration Decoders not in use default to locked state Binary Value 1Hz Steps Binary Value 1 BPS Steps Sweep Limits Max of 255 kHz Unsigned Binary Value in Hz 0 Internal 1 External 4
31. Allow lt 1 gt Reserved Set to Zero 065 Rev 3 3 4 69 User Interfaces 4 70 lt 1 gt lt 24 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt BER Measure Period Rx Circuit ID Rx Terrestrial Loopback Rx Baseband Loopback Rx IF Loopback Reserved Data Invert Async Framing Async Baud Rate Async Port Type Async Terrestrial Interface Type Multiprotocol Interface Card Interface Type DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Unsigned Binary Number of Bits in Measurement Period in Powers of Ten ex 6 10 Bits 24 ASCII Characters 0 Disabled 1 Enabled 0 Disabled 1 Enabled 0 Disabled 1 Enabled Ignore 0 Normal 1 Invert Note The following byte applies only if an Asynchronous IDR or IBS Interface is installed If not ignore 0 No Framing 1 1 16 IBS 2 1 16 Async 3 96 Kbit IDR Note The following byte applies only if an asynchronous interface card is installed If not ignore 0 1200 1 2400 2 4800 3 9600 4 19200 5 50 6 110 7 300 8 600 Note The following byte applies only if an asynchronous interface card is installed If not ignore 0 RS 232 1 RS 485 Note The following byte applies only if an asynchronous interface card is installed If not ignore 0 RS 422 1 V 35 2 RS 232 Note The following byte applies only if a synchronous multiprotocol interf
32. Backward Alarm In 1 Input ESCBWI 3 Backward Alarm In 3 Input NC No Connection NC 5 30 No Connection TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 8 14 ESC 8K DATA J15 Electrical Interfaces The ESC 8K Data Port J15 is the ESC 8K Data Connector It is a 15 Pin Female D Connector Refer to Table 5 28 for connector pinouts Table 5 28 ESC 8K Data Interface 15 Pin Female D Connector J15 Pin Number Signal Direction 1 ESCRXO B Rx Octet B Output 2 ESCRXC B Rx Clock B Output 3 ESCRXD B Rx Data B Output 4 NC No Connection 5 NC No Connection 6 ESCTXD A Tx Data A Input 7 ESCTXC A Tx Clock A Output 8 ESCTXO A Tx Octet A Output 9 ESCRXO A Rx Octet A Output 10 ESCRXC A Rx Clock A Output 11 ESCRXD A Rx Data A Output 12 GND Ground 13 ESCTXD B Tx Data B Input 14 ESCTXC B Tx Clock B Output 15 ESCTXO B Tx Octet B Output 065 Rev 3 3 5 31 Electrical Interfaces 5 8 15 G 703 BAL J16 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem The G 703 Balanced Port J10 are the G 703 balanced data connectors It is a 15 Pin Female D Connector Refer to Table 5 29 for connector pinouts Table 5 29 G 703 BAL 15 Pin Connector J10 Pin Number Signal Description Direction 1 SD A Send Da
33. Bit 7 Spare 0 Mask 1 Allow Set to Zero Unsigned Binary Number of Bits in Measurement Period in Powers of Ten ex 6 10 Bits 24 ASCII Characters 0 Disabled 1 Enabled 0 Disabled 1 Enabled 065 Rev 3 3 4 83 User Interfaces lt 1 gt lt 1 gt Rx IF Loopback Reserved Data Invert Framing Async Baud Rate Async Port Type Async Terrestrial Interface Type Multiprotocol Interface Card Interface Type G 703 Interface Type BPSK Symbol Pairing DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 0 Disabled 1 Enabled Set to Zero 0 Normal 1 Invert Note The following byte applies only if an Asynchronous IDR or IBS Interface is installed If not set to zero 0 No Framing 1 1 16 IBS 2 1 16 Async 3 96 Kbit IDR Note The following byte applies only if an asynchronous interface card is installed If not set to zero 0 1200 1 2400 2 4800 3 9600 4 19200 5 50 6 110 7 300 8 600 Note The following byte applies only if an asynchronous interface card is installed If not set to zero 0 RS 232 1 RS 485 Note The following byte applies only if an asynchronous interface card is installed If not set to zero 0 V 35 1 RS 422 2 RS 232 Note The following byte applies only if a synchronous multiprotocol interface card is installed If not set to zero 0 V 35 1 RS 422 2 RS 232 Note The fo
34. Bits 4 7 Spares 0 Mask 1 Allow Note The following byte applies only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode If not ignore 0 G 703 Unbalanced E1 1 G 703 Balanced E1 2 9 703 T1 B8ZS If synchronous multiprotocol daughter card is installed 0 V 35 1 RS 422 2 RS 232 Note The following two bytes apply only if an IDR OR IBS interface card is installed and the Receive Mode is set to TM065 Rev 3 3 4 71 User Interfaces lt 2 gt lt 30 gt lt 1 gt Receive ESC Audio 1 Volume Receive ESC Audio 2 Volume Reserved Alarm 5 Mask Insert Mode Insert Map Insert Alarm Mask Insert Back Alarm Mask Force Terrestrial Back Alarm Insert Edit Map DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem IDR Mode If not ignore 20 to 10 Signed Binary Value in dB Note The following two bytes apply only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode If not ignore 20 to 10 Signed Binary Value in dB Bit 0 IBS Satellite Multiframe Fault Bit 1 IBS Satellite Frame Fault Bit 2 Spare Bit IBS Alarm if BER lt 107 Bit 4 IBS Prompt Alarm Bit 5 IBS Service Alarm Bits 6 7 Spares 0 Disable 1 T1 D4 2 T1 ESF 3 PCM 30 4 PCM 30C 5 PCM 31 6 PCM 31C 7 T1 SLC96 Mapping of Satellite Channels to insert Terrestrial Timeslots 0 Frame Lock Fau
35. CH1 is assigned to TS1 Timeslot 1 CH2 to TS 2 CH3 to TS3 and CH4 to TS4 ENTER must be depressed after assigning each individual TS Once the timeslots are assigned to the channels use the Left or Right Arrow Key to scroll to the Mapping Menu This menu will appear in the following way Map Copy kkkkkkk kkkkkkk Note The will be one of several words just look for the Copy display This is the menu where the channel assignments are actually entered into the modem To do this perform the following steps For the Transmit Side 1 Push lt ENTERP gt to get the flashing cursor 2 Use the Up Arrow Key to make the left portion of the display read TX EDIT 3 Use the Right or Left Arrow Keys to switch the flashing cursor to the right portion of the display 4 Use the Up or Down Arrow Key to make the right hand portion read TX ACTIVE 5 The mapping display should now look like this Map Copy TX EDIT TX ACTIVE 6 Push ENTER to enter this command This tells the modem to configure to the settings that were assigned in the Channel Timeslot display 3 12 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Operation For the Receive Side 1 With Rx Side Channels configured as follows CH1 to TS1 CH2 to TS2 to TS3 and CH4 to TS4 2 After the timeslots are assigned properly scroll to the Mapping Menu and use the above procedure to enter the settings into the mod
36. External Reference PLL Lock Fault 0 Pass 1 Fail lt gt Latched Alarm 2 Bit 0 Terrestrial Clock Activity Detect Fault Minor Alarm Bit 1 Internal Clock Activity Detect Fault Bit 2 Tx Sat Clock Activity Detect Fault Bit 3 Tx Data Activity Detect Fault Bit 4 Terrestrial AIS Tx Data AIS Detect Fault Bit 5 Transmit Ext BNC Clock Activity Detect Fault Bit 6 Transmit Reed Solomon Fault Bit 7 Tx BUC Fault LBST Only 0 Pass 1 Fail lt 1 gt Latched Bit 0 12 V Alarm Alarm Bit 1 12 V Alarm Bit 2 5 V Alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail Opcode lt 2408h gt Query a Modulator s Current Alarms Query Response lt 1 gt Alarm 1 Major Bit 0 Transmit Processor Fault Alarm Bit 1 Transmit Output Power Level Fault Bit 2 Transmit Oversample PLL Lock Fault Bit 3 Composite Clock PLL Lock Fault Bit 4 IF Synthesizer Lock Fault Bit 5 Transmit FPGA Configuration Alarm Fault Bit 6 Transmit Forced Alarm Bit 7 External Reference PLL Lock Fault 0 Pass 1 Fail lt gt Alarm 2 Minor Bit 0 Terrestrial Clock Activity Detect Fault Alarm Bit 1 Internal Clock Activity Detect Fault Bit 2 Tx Sat Clock Activity Detect Fault Bit 3 Tx Data Activity Detect Fault _Bit 4 Terrestrial AIS Tx Data AIS Detect Fault 065 Rev 3 3 4 57 User Interfaces l
37. Output 13 IDI A Insert Data In A Input 6 IDI B Insert Data In B Input 14 MOD FLT Mod Fault Open Collector Output 15 DMD FLT Demod Fault Open Collector Output 5 6 16 ESC 64K Data Voice Async 917 J17 serves different purposes depending upon configuration IDR Mode 64 Data or Voice depending upon Front Panel selection IBS or D amp I Mode Async Port It is a 9 Pin Female Connector Refer to Tables 5 17 through 5 19 for connector pinouts 5 20 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces Table 5 17 ESC AUDIO 9 Pin Female D Connector J17 Pin Number Description Direction ESCAUDTX 1A Tx Audio 1A Input ESCAUDRX 1A Rx Audio 1A Output GND Ground ESCAUDTX 2B Tx Audio 2B Input ESCAUDRX 2B Rx Audio 2B Output ESCAUDTX 1B Tx Audio 1B Input ESCAUDRX 1B Rx Audio 1B Output ESCAUDTX 2A Tx Audio 2A Input O OINI OD 01 OJN ESCAUDRX 2A Rx Audio 2A Output Table 5 18 ESC 64 K DATA 9 Pin Female D Connector J17 Pin Number Signal Description Direction 1 ESCAUDTX1A Tx Data 64K A Input 2 ESCAUDRX 1 Rx Data 64K A Output 3 GND Ground Ground 4 ESCAUDTX2B Tx Clock 64K B Output 5 ESCAUDRX 2B Rx Clock 64K B Output 6 ESCAUDTX1B Tx Data 64K B Inp
38. but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values but will be ignored 0 Force Alarm Always ON 1 Force Alarm Always OFF 2 Normal Operation Note The following byte applies only if an IDR OR IBS interface card is installed and the transmit mode parameter is set to IDR Mode If an IDR OR IBS interface card is not installed set to zero If an IDR OR IBS interface card is installed but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values but will be ignored If G 703 daughter card is installed 0 G 703 Unbalanced E1 1 G 703 Balanced E1 2 G 703 T1 B8ZS If Synchronous multiprotocol daughter card is installed 0 V 35 1 RS 422 2 RS 232 Note The following two bytes apply only if an IDR OR IBS 065 Rev 3 3 4 63 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt 2 gt Transmit ESC Audio 1 Volume lt 2 gt Transmit ESC Audio 2 Volume interface card is installed and the transmit mode parameter is set to IDR Mode If an IDR OR IBS interface card is not installed set to zero If an IDR OR IBS interface card is installed but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values but will be ignored 20 to 10 signed binary value in dB Note The following two bytes apply only if an IDR OR IBS interface card is installed and the tran
39. ignore 0 No Framing 1 1 16 IBS 2 1 16 Async 3 96 Kbit IDR Note The following three bytes applies only if an Asynchronous Interface Card is installed If not ignore TM065 Rev 3 3 4 49 User Interfaces lt 1 gt lt 1 gt lt 2 gt lt 2 gt lt 2 gt lt 2 gt Async Baud Rate Async Port Type Async Terrestrial Interface Type Multiprotocol Interface Card Interface Type G 703 Interface Type BPSK Symbol Pairing AUPC Enable AUPC Eb No AUPC Minimum Power Limit AUPC Maximum Power Limit AUPC Default Power Level DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 1200 1 2400 2 4800 9600 4 19200 5 50 6 110 7 300 8 600 0 RS 232 1 RS 485 0 V 35 1 RS 422 2 RS 232 Note The following byte applies only if a Synchronous Multiprotocol Interface Card is installed If not ignore 0 RS 422 1 V 35 2 RS 232 Note The following byte applies only if a Symmetric G 703 Interface Card is installed If not ignore 0 G703T1AMI 1 G703T1B8ZS 2 G703BE1 3 G703UE1 Note The following byte applies to all DMD2401 modems regardless of interface type 0 Normal 1 Swapped Note The following nine bytes apply only if an Asynchronous Interface Card or IBS Interface Card is installed and the AUPC option is also installed If not set to zero Note AUPC minimum power level lt AUPC default power level
40. lt AUPC max power level 0 Disabled 1 Enabled Unsigned Binary 1 Decimal Point Implied Signed Value 50 to 300 5 0 to 30 dBm Implied Decimal Point Signed Value 50 to 300 5 0 to 30 dBm Implied Decimal Point Signed Value 50 to 300 5 0 to 30 dBm Implied Decimal Point Note The following two bytes apply only if an IDR or IBS 4 50 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt 1 gt lt 1 gt lt 2 gt Daughter Card Fault Mask Transmit Mode Transmit IDR Overhead Mode IDR Backward Alarm Mask IDR Force Backward Alarm 1 IDR Force Backward Alarm 2 IDR Force Backward Alarm 3 IDR Force Backward Alarm 4 Interface Type Transmit ESC Audio 1 Volume 065 Rev 3 3 User Interfaces interface card is installed If not ignore 0 Mask 1 Allow 0 Closed Net Mode 1 IDR Mode 2 IBS Mode 3 Drop amp Insert Mode Note The following 11 bytes apply only if an IDR or IBS interface card is installed and the transmit mode parameter is set to IDR Mode If an IDR or IBS interface card is not installed ignore If an IDR or IBS interface card is installed but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values but will be ignored 0 Voice 1 64 Kbit Data Bit 0 IDR Backward Alarm 1 Bit 1 IDR Backward Alarm 2 Bit 2 IDR Backward Alarm 3 Bit 3
41. next SYN character If the RLLT receives the packetized message from the sender before it times out it checks for any error messages appended by the IOPT In the absence of errors the RLLT processes the received command sent via the transmitted packet and issues a message out system call to ultimately acknowledge the received packet This call generates the response packet conveyed to the sender If the IOPT sensed errors in the received packet and an RLLT timeout has not occurred the RLLT causes the equipment to issue the appropriate error message s in the pending equipment response frame To maintain frame synchronization the keeps track of error laden packets and packets intended for other equipment for the duration of each received packet Once the packet is complete the IOPT invokes an 1 0 wait state and searches for the next SYN character 4 4 8 RLLP Summary The RLLP is a simple send and wait protocol that automatically re transmits a packet when an error is detected or when an acknowledgment response packet is absent During transmission the protocol wrapper surrounds the actual data to form information packets Each transmitted packet is subject to time out and frame sequence control parameters after which the packet sender waits for the receiver to convey its response Once a receiver verifies that a packet sent to it is in the correct sequence relative to the previously received packet it computes a l
42. the timeout delay parameters may be programmed into the equipment in accordance with site requirements by Radyne ComStream Inc prior to shipment or altered by qualified personnel The FSN handshake routines must account for timeout delays and be able to introduce them as well 4 4 4 Global Response Operational Codes In acknowledgment response packets the operational code OPCODE field of the message packet is set to 0 by the receiving devices when the message intended for the device is evaluated as valid The device that receives the valid message then exchanges the lt SOURCE ID gt with the DESTINATION ID sets the lt OPCODES gt to zero in order to indicate that a good message was received and returns the packet to the originator This GOOD MESSAGE opcode is one of nine global responses Global response opcodes are common responses issued to the M amp C computer or to another device that can originate from and are interpreted by all Radyne equipment in the same manner These are summarized as follows all opcode values are expressed in decimal form Table 4 5 Response Opcodes Response Opcode Description Opcode Good Message 00h Bad Parameter FFh Bad Opcode FEh Bad Checksum FDh Command Not Allowed in LOCAL Mode FCh Command Not Allowed in AUTO Mode FBh Bad Destination FAh Unable to Process Command F9h Packet Too Long F8h 4 38 065 Rev 3 3 D
43. 12V Voltage 12V Voltage Temperature Reserved 065 Rev 3 3 Bit 1 User Interfaces 12 V Alarm Bit 2 2 5 V Alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail Bit 0 Transmit Processor Fault Major Alarm Bit 1 Transmit Output Power Level Fault Bit 2 Transmit Oversample PLL Lock Fault Bit 3 Composite Clock PLL Lock Fault Bit 4 IF Synthesizer Lock Fault Bit 5 Transmit FPGA Configuration Fault Bit 6 Transmit Forced Alarm Bit 7 External Reference PLL Lock Fault 0 Pass 1 Fail Bit 0 Terrestrial Clock Activity Detect Fault Minor Alarm Bit 1 Internal Clock Activity Detect Fault Bit 2 Tx Sat Clock Activity Detect Fault Bit 3 Tx Data Activity Detect Fault Bit 4 Terrestrial AIS Tx Data AIS Detect Fault Bit 5 Transmit Ext BNC Clock Activity Detect Fault Bit 6 Transmit Reed Solomon Fault Bit 7 Tx BUC Fault LBST Only 0 Pass 1 Fail Bit 0 12 V alarm Bit 1 2 412 V alarm Bit 2 2 5 V alarm Bit 3 2 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail 0 Offline 1 Online 5 V Implied Decimal Point ex 49 4 9 V 12 V Implied Decimal Point ex 121 12 1 V 12 V Implied Decimal Point and Minus Sign ex 118 2 11 8 V Degrees C Implied Decimal Point ex 490 49 0 C Temper
44. 210 211 212 213 214 215 216 217 218 219 220 221 203 205 206 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 204 206 207 208 210 211 212 213 214 215 216 217 218 219 220 221 222 223 205 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 206 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 207 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 208 209 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 TMO65 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Appendices 229 209 210 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 230 210 211 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 231 212 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 232 213 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 233 214 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 234 215 216 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 235 216 217 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 236 217 218 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 237 218
45. 23 inches of rack depth is required The rear panel is designed to have power enter from the left and IF cabling enter from the right when viewed from the rear of the unit Data and control cabling can enter from either side although they are closer to the left The unit can be placed on a table or suitable surface if required A WARNING There are no user serviceable parts or configuration settings located inside the DMD2401 chassis There is a potential shock hazard internally at the power supply module DO NOT open the DMD2401 chassis under any circumstances CAUTION Before initially applying power to the unit it is a good idea to disconnect the transmit output from the operating ground station equipment This is especially true if the current DMD2401 configuration settings are unknown where incorrect settings could disrupt existing communications traffic 2 1 Unpacking The DMD2401 Modulator was carefully packaged to avoid damage and should arrive complete with the following items for proper installation 1 DMD2401 Unit 2 Power Cord 6 foot with applicable AC connector 3 Installation and Operation Manual 2 2 Removal and Assembly Carefully unpack the unit and ensure that all of the above items are in the carton If the Prime AC power available at the installation site requires a different power cord AC connector then arrangements to receive the proper device will be necessary before proceeding with the installation
46. 3 11 3 12 3 13 3 13 3 14 3 14 4 1 4 1 4 1 4 2 4 2 4 3 4 2 Front Panel Control Screen Menus 4 4 4 4 4 2 2 Modulator Menu Options and Parameters 4 4 4 2 3 Demodulator Menu Options and Parameters 4 6 4 2 4 Interface Menu Options and Parameters 4 9 4 2 5 Monitor Menu Options and Parameters 4 11 4 2 6 Alarms Menu Options and Parameters 4 12 4 2 7 System Menu Options and Parameters 4 20 4 22 4 2 8 Test Menu Options and Parameters viii 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 4 3 Terminal Mode Control Table of Contents 4 23 4 3 1 Modem Terminal Mode Control 4 24 4 3 2 Modem Setup for Terminal Mode 4 24 4 4 Remote Port User Interface 4 35 4 4 1 Protocol Structure 4 35 4 4 2 Protocol Wrapper 4 35 4 4 3 Frame Description and Bus Handshaking 4 4 4 Global Response Operational Codes 4 37 4 38 4 4 5 Collision Avoidance 4 40 4 4 6 Software Compatibility 4 42 4 4 7 Flow Control and Task Processing 4 42 4 4 8 RLLP Summary 4 43 4 4 9 DMD2401 Opcode Command Set 4 44 4 4 10 Modulator Command Set 4 45 4 4 11 Demodulator Command Set 4 46 4 4 12 Module Command Set 4 47 4 4 13 Detailed Command Descriptions 4 47 4 4 13 1 DMD2401 Modulator 4 47 4 4 13 2 DMD2401 Demodulator 4 67 4 4 13 3 Module Queries amp Commands 4 89 4 4 13 4 Default Values M
47. 602 437 9620 to find out if the software revision for that piece of equipment is current and that no new features have been added since the release of this document DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Warranty Policy Radyne ComStream Corporation Warranty Policy Warranty and Service Radyne ComStream Corporation Seller warrants the items manufactured and sold by Radyne ComStream Corporation to be free of defects in material and workmanship for a period of two 2 years from date of shipment Radyne ComStream Corporation s obligation under its warranty is limited in accordance with the periods of time and all other conditions stated in all provisions of this warranty This warranty applies only to defects in material and workmanship in products manufactured by Radyne ComStream Corporation Radyne ComStream Corporation makes no warranty whatsoever concerning products or accessories not of its manufacture Repair or at Radyne ComStream Corporation s option replacement of the Radyne ComStream Corporation products or defective parts therein shall be the sole and exclusive remedy for all valid warranty claims Warranty Period The applicable warranty period shall commence on the date of shipment from Radyne ComStream Corporation s facility to the original purchaser and extend for the stated period following the date of shipment Upon beginning of the applicable Radyne ComStream Corporation warranty period all customer s re
48. 81 User Interfaces 4 82 lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 4 gt lt 1 gt lt 1 gt Source Input Level Limit Demodulation Type Convolutional Decoder Reed Solomon Reed Solomon N Reed Solomon K Reed Solomon T RS Interleaver Depth Differential Decoder Descrambler Control Descrambler Type Spectrum Buffer Size Buffer Clock Buffer Clock Polarity Operating Mode Alarm 1 Mask DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Lower Level Limit Binary Value 1 dB Steps Negative Sign Implied 0 QPSK 1 BPSK 2 8PSK 4 OQPSK 0 None 1 Viterbi 1 2 Rate 3 Viterbi 3 4 Rate 5 Viterbi 7 8 Rate 7 Sequential 1 2 Rate 9 Sequential 3 4 Rate 11 Sequential 7 8 Rate 14 Trellis 2 3 20 TPC 0 7932D 21 TPC 0 4953D 0 Disable 1 Enable Unsigned Binary Unsigned Binary Note Always set to Zero as the T value is calculated from N and K Unsigned Binary 4 or 8 0 Off 1 2 On 0 Disable 1 Enable 0 None 1 IBS Scrm 2 V35 1 55 3 V35 CCITT 4 V35_EFDATA 7 ReedSolomon Scrm 8 V35_EFRS 0 Normal 1 Inverted Byte 1 2 Buffer Size in ms Byte 3 4 Buffer Size in Bytes 0 External 1 Internal 2 EXC RX SAT 0 Normal 1 Inverted 0 Normal 1 2047 Test Bit 0 Receive Processor Fault TM065 Rev 3 3 User Interfaces DMD2401 DMD2401L
49. Binary lt 1 gt Reed Solomon T Note Always set to Zero as the T value is calculated from N and K lt 1 gt RS Interleaver Unsigned Binary 4 or 8 Depth Opcode lt 2611h gt Command a Modulator s Spectrum lt 1 gt Spectrum 0 Normal 1 Inverted Opcode lt 2612h gt Command Modulator s Operating Mode lt 1 gt Operating Mode 0 Normal 1 2047 Test Opcode lt 2613h gt Command a Modulator s Scrambler Control 1 Scrambler 0 Off 1 On Control Opcode lt 2614h gt Command a Modulator s Scrambler Type lt gt Scrambler Type 0 None 1 IBS Scrambler 2 V 35_IESS 3 V 35_CCITT 4 V 35_EFDATA 7 Reed Solomon Scrambler 8 V35 EFRS Opcode lt 2617h gt Command a Modulator s Terrestrial Loopback lt 1 gt Terrestrial 0 Disable 1 Enable Loopback Opcode lt 2618h gt Command a Modulator s Baseband Loopback lt 1 gt Baseband 0 Disable 1 Enable Loopback Opcode lt 2623h gt Command a Modulator s Data Invert lt 1 gt Data Invert 0 Normal 1 Inverted 4 66 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS Opcode lt 2626h gt Comman IDR Satellite Modem User Interfaces Modulator s Async Terrestrial Interface Type Note Command 2626h is only valid if an asynchronous interface card is installed If not this command is ignored Note The following command will also turn the carrier off to protect the satellite Mod A
50. Binary Unsigned Binary Note Always set to Zero as the T value is calculated from N and K Unsigned Binary 4 or 8 Opcode lt 2A0Dh gt lt 1 gt Opcode lt 2A0Eh gt lt 1 gt Descrambler Control Comman Descrambler Type Demodulator s Descrambler Control 0 Disable 1 Enable id a Demodulator s Descrambler Type 0 None 1 IBS Scrm 2 V35_IESS 3 V35_CCITT 4 V35_EFDATA 7 Reed Solomon Scrm 8 V35_EFRS Opcode lt 2A0Fh gt Comman lt 1 gt Spectrum Opcode lt 2 11 gt Comman lt 1 gt Buffer Clock Opcode lt 2A12h gt lt gt Opcode lt 2A13h gt Buffer Clock Polarity Comman lt 1 gt Insert Mode 065 Rev 3 3 id a Demodulator s Spectrum 0 Normal 1 Inverted d a Demodulator s Buffer Clock 0 External 1 Internal 2 EXC 3 RX SAT d Demodulator s Buffer Clock Polarity lO Normal 1 Inverted d a Demodulator s Insert Mode Disable 11 1 11 04 4 87 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 2 T1 ESF 3 PCM 30 4 30 5 31 6 PCM 31C 7 11 51 96 Opcode lt 2A17h gt Command a Demodulator s Operating Mode lt 1 gt Operating Mode 0 Stop 1 2047 Test 4 88 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces Opcode
51. Command Demod Terrestrial Loopback 2A1Ch Command Demod Baseband Loopback 2A1Dh Command Demod IF Loopback 2A1Eh Command Demod Center Buffer 2A20h Command Demod Buffer Size Time Bytes 2A31h Command Demod Async TERR Int 2A2Eh TMO65 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 4 4 12 Module Command Set RLLP Command Opcode User Interfaces 4 4 13 Detailed Command Descriptions 4 4 13 1 DMD2401 Modulator Opcode lt 2400h gt Query a Modulator s Configuration and Status Query Response A CAUTION Number of Nonvol bytes Config lt 4 gt Frequency lt 3 gt Reserved Ignore lt 4 gt Data Rate lt 4 gt EXC Clock uration Bytes Unsigned Binary Value in Hz Unsigned Binary Value in BPS Unsigned Binary Value in Hz Query Module Identification 2403h Query Module Current Alarms 240Ah Query Module Time 240Eh Query Module Date 240Fh Query Module Time and Date 2410h Query Module Options 2431 Command Module Control Mode 2600h Command Drop amp Insert Map 2C00h Command Drop amp Insert 2C01h Command Module Clear Latched Alarms 2C03h Command Module Set Time 2C04h Command Module Set Date 2C05h Command Module Set Time and Date 2C06h Command Module Soft Reset 2C07h Command Module Default Configuration 2C30h S
52. Demodulator Pins 8 and 9 Shorted Pin 7 and 8 Shorted The pin definitions for J6 are shown in Table 5 22 below Note The NC and NO Normally Closed and Normally Open nomenclature applies to non energized relays Table 5 22 Alarm Connector Pin Assignment J6 J6 Pin Connection Number Mod Alarm Relay A NO on Alarm Mod Alarm Relay A Common Mod Alarm Relay A NC on Alarm AGC Voltage Output GND Demod Alarm Relay B NO on Alarm Demod Alarm Relay B Common 41 0 AJOIN Demod Alarm Relay NC on Alarm 5 24 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces 5 7 7 REMOTE J7 The Remote Port J7 is the RS 485 connection for remote monitor and control of the modem It is a 9 Pin Female D Connector Refer to Table 5 23 below for the connector pinouts Table 5 23 RS 485 Remote Port 9 Pin Female Connector J7 Pin Number Signal Description Direction 1 RS 485 TxD B Transmit Data B Input 5 GND Ground 6 RS 485 TxD A Transmit Data A Output 8 RS 485 RxD B Receive Data Input 9 RS 485 RxD A Receive Data Input 5 7 8 SWITCH INTERFACE 8 The Switch Interface Port J8 is the redundancy switch connector It is a 68 Pin High Density Female Connector Refer to Table 5 8 for connector pinouts 5 7 9 SD J9 The Send Data Port J9 is the unbalanced Send Data BNC Connector 5 7 10 G 703 BAL J
53. Eb No Figure 6 2 IDR BER Curve 1x10 1x10 1x102 1x10 1x10 BER 4x10 1x10 1x107 1 10 98 1x10 1x10 Reed Solomon IDR 7 8 VIT 3 4 Rate 5 6 7 8 9 10 11 Eb No 065 Rev 3 3 Figure 6 3 Reed Solomon IDR BER Curve 6 5 Maintenance DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem BER Sequential 384 Kbps 1x10 1x10 3 4 SEQ 1x10 1x10 1x10 1x40 55 7 8 SEQ 1x10 1x107 1 2 SEQ 1x10 1x10 1 10 3 4 5 6 7 8 9 10 11 Eb No Figure 6 4 Sequential 384 Kbps BER Curve BER Trellis 8PSK 1 10 1 10 1 10 1x10 2 1x10 1x10 1x 10 Tatort 2 3 Rate 1x10 1x10 1 10 4 5 6 7 8 9 1
54. Fail No Yes Indicates a hardware failure on the Interface Card Pass Fail No Yes Indicates that the Internal Clock Battery is low Pass Fail No Yes Indicates an M amp C Memory fault Pass Fail No Yes Indicates an M amp C Microprocessor hardware failure Pass Fail No Yes Indicates that the External Reference PLL is not locked Pass Fail No Yes Indicates that the External Clock is not active Pass Fail No Yes Indicates no activity on the External Reference Pass Fail No Yes Indicates a failure on the Daughter Card User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Latched Alrm menu Major Tx menu TxProc TxPower TxOSCIk CompCLK TxSynth Tx FPGA Ref PLL Tx Force Major Rx menu RxProc SigLoss FrmSync IFSynth Pass Fail Tx Processor fault Indicates a Hardware Transmit DSP failure within the modem Pass Fail Indicates that the Modem Tx Output Power is within the allowed tolerance Pass Fail Indicates that the Tx Oversample Clock PLL is not locked This alarm will flash On during certain modem parameter changes Pass Fail Indicates that the Tx Composite Clock PLL is not locked This alarm will flash On during certain modem parameter changes Pass Fail Indicates that the Tx IF Synthesizer is not locked This alarm will flash On during certain modem parameter changes Pass Fail This alar
55. Frame Lock Fault all modes Bit 1 Terrestrial Multiframe Lock Fault PCM 30 and PCM 30C only Bit 2 Terrestrial CRC Lock Fault PCM 30C and PCM 31C only Bit 3 Terrestrial Yellow Alarm Received T1 only Bit 4 Terrestrial FAS Alarm Received E1 only Bit 5 Terrestrial MFAS Alarm Received PCM 30 and PCM 30C only Bit 6 Loss of T4errestrial Signaling reported by DSP Bit 7 Spare Bit 0 Backward Alarm Received from Drop Terrestrial Bits 2 7 Spares Opcode lt 240Bh gt Query a Modulator s Status Query Response lt 1 gt lt 1 gt 4 54 Revision Number Alarm 1 Major Alarm Decimal Point Implied Bit 0 Transmit Processor Fault Bit 1 Transmit Output Power Level Fault Bit 2 Transmit Oversample PLL Lock Fault Bit 3 Composite Clock PLL Lock Fault Bit 4 IF Synthesizer Lock Fault 5 Transmit FPGA Configuration Alarm Fault TM065 Rev 3 3 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt 2 Latched Alarm 1 Major Alarm Latched Alarm 2 Minor Alarm Latched Common Alarm Online Flag 5 V Voltage Bit 6 Transmit Forced Alarm Bit 7 External Reference PLL Lock Fault 0 Pass 1 Fail Bit 0 Terrestrial Clock Activity Detect Fault Bit 1 Internal Clock Activity Detect Fau
56. IDR or IBS interface card is installed If not ignore this byte 0 Daughter Card OK 1 Daughter Card Faulted Note The following byte applies only if an IDR OR IBS interface card is installed and the modem is in IDR mode Bit 0 2 Backward Alarm 1 Bit 1 Backward Alarm 2 Bit 2 Backward Alarm 3 Bit 3 Backward Alarm 4 Bits 4 7 Spare 0 Not Transmitted 1 Transmitted 0 Front Panel 1 Terminal 2 Computer Bit 0 Terrestrial Frame Lock Fault all modes Bit 1 Terrestrial Multiframe Lock Fault PCM 30 and 30 only Bit 2 Terrestrial CRC Lock Fault PCM 30C and PCM 31C only Bit 3 Terrestrial Yellow Alarm Received T1 only Bit 4 Terrestrial FAS Alarm Received E1 only Bit 5 Terrestrial MFAS Alarm Received PCM 30 and PCM TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces 30C only Bit 6 Loss of T4errestrial Signaling reported by DSP Bit 7 Spare 1 Drop Backward Bit 0 Backward Alarm Received from Drop Terrestrial Alarm Status Bits 2 7 Spares Opcode lt 2405h gt Query a Modulator s Latched Alarms Query Response lt gt Latched Alarm 1 Bit 0 Transmit Processor Fault Major Alarm Bit 1 Transmit Output Power Level Fault Bit 2 Transmit Oversample PLL Lock Fault Bit 3 Composite Clock PLL Lock Fault Bit 4 IF Synthesizer Lock Fault Bit 5 Transmit FPGA Configuration Alarm Fault Bit 6 Transmit Forced Alarm Bit 7
57. If the mode of operation is selected after the data rate has been entered then the data rate must be compatible with the desired mode of operation or the mode will not be allowed The following parameters are set for the given mode of operation IDR Mode IESS 309 For Data Rates 1 544 2 048 Mbps Framing Type 96 Kbps IDR Scrambler Type V 35 IESS Spectrum Mask Intelsat IBS Mode IESS 308 Data Rates 1 544 2 048 Mbps n x 64 Framing Type 1 15 IBS Scrambler Type IBS Spectrum Mask Intelsat 4 4 065 Rev 3 3 Mod IF menu Freq MHz Power Carrier Spectrum Inv Modulation Impedance Mod Data menu Data Rate Conv Enc Diff Code Scrmbl Sel Scrmbl Ctrl Mod Framing 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces D amp I Mode IESS 308 Data Rates nx 64 Framing Type 1 15 IBS Scrambler Type IBS Spectrum Mask Intelsat Closed Net All possible combinations allowed 50 90 MHz 100 180 MHz 950 1750 MHz Allows the user to enter the Modulator IF Frequency in 1 Hz increments 5 to 30 dBm Allows the user to enter the Transmitter Power Level On Off Auto Vsat RTS Allows the user to select the Carrier Type Refer to Appendix B for further information Normal Inverted Allows the user to invert the direction of rotation for PSK Modulation Normal meets the IESS Specification
58. Indicates a Receive DSP Hardware failure within the modem TMO65 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces SigLoss Mask FrmSync Mask MFrmSync Mask IFSynth Mask BuffPLL Mask RxLevel Mask Rx FPGA Mask Rx Force Minor Tx menu Tx Activity menu TerrCIk Mask Int CIk Mask BNC CIk Mask TxSatCk Mask Tx Data Mask TerrAIS Mask Pass Fail No Yes Indicates that the Demodulator is unable to lock toa signal Pass Fail No Yes Indicates that the framing unit is unable to find the expected framing pattern Pass Fail No Yes Pass Fail No Yes Indicates the Rx IF Synthesizer is not locked This alarm will flash On during certain modem parameter changes Pass Fail No Yes Indicates that the Buffer Clock PLL is not locked This alarm will flash On during certain modem parameter changes Pass Fail No Yes This alarm indicates that the Receive Automatic Gain Control is saturated i e too much signal power is being supplied to the modem Pass Fail No Yes This alarm indicates that a Receive FPGA Hardware Fault has occurred Pass Fails Allows a Major Rx Alarm to be forced for testing purposes etc Pass Fail No Yes Indicates no Terrestrial Clock activity Pass Fail No Yes Indicates no SCT Clock activity Pass Fail No Yes Indicates no activity on the External BNC Clock Pass Fail No Yes Indic
59. Intf Pres 5 V Mon 12 V Mon 12 V Mon Events SETUP Rx Univ Int Buffer msec BufClk Sel Rx Framing User Interfaces Ver 2 Universal 4 8 25 ead 1 29 1 232 RX SAT None Figure 4 18 Closed Net G 703 G 703 Interface Control Terminal Screen 1 Menu 2 Control Mode Terminal 3 Remote Mode RS 485 4 Remote Addr 32 6 Center Buffer Buffer Fill 49 Seien mice ieri UNIVERSAL G 703 SYNCHRONOUS GENERAL EXC Clock 10000000 Ref Source Internal Ext Ref Fq 10 000000 38 ForceTxBackl Normal 39 ForceTxBack2 Normal 40 ForceTxBack3 Normal 41 ForceTxBack4 Normal 42 Tx Ckt ID 43 Rx Ckt ID Enter Selection Number IF Input dBm 40 2 9 V Eb No gt 20 00 Uncorrected SER 0 E 5 Corrected BER 0 12 Offset Frq 2 1 2047 Error Cnt NO SYNC 2047 BER NO SYNC TX SETUP 51 Tx Terr Intf RS 422 52 Tx Clock Sel SCTE Ext 53 Tx Clock Pol Auto 54 SCT Source Internal 55 Tx Framing 96kBit IDR 56 IDR OH Type Voice 57 ESC Ch 1 0 58 ESC Ch 2 0 ALARM Mask 60 1 61 2 62 3 63 TxBack4 F No RX 71 72 23 74 75 76 77 78 5 Ch 5 Ch RxBac RxBac RxBac RxBac SW F04780 Intf Pres 5 V Mon 12 V Mon 12 V Mon Events INTERFACE CONTROLS SETUP Rx Terr Int Buffer msec Bufcl Buff Rx Framing k Sel Clk Po IDR OH Type
60. MHz Allows the user to enter the Modulator IF Frequency in 1 Hz increments Normal Inverted Inverts the direction of rotation for PSK modulation Normal meets the IESS Specification BPSK OQPSK QPSK 8PSK Allows the user to select the demodulation type 11 42 kHz Sets the acquisition range for the demodulator 20 90 dBm 75Q 50Q Allows the user to select the output impedance Refer to Table 1 1 for Data Rates Allows the user to set the Data Rate in Bps steps VIT 1 2 VIT 3 4 VIT 7 8 Optional SEQ 1 2 Optional SEQ 3 4 Optional SEQ 7 8 Optional TRE 2 3 Allows the user to select the Rx Code Rate and Type On Off Enables or disables the differential decoder None V 35 IESS V 35 CCITT V 35 EF IBS Reed Solomon V 35 EF RS Selects the descrambler type Enable Disable Enables or disables descrambler operation 1 15 Async 1 15 IBS 96 Kbps IDR None Used with IDR IBS or Asynchronous Interface Only Selects the Frame Type Normal Inverted 4 7 User Interfaces 4 8 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Allows the user to invert the data TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces IDR OH Type Symbol Pair ReedSolomon menu DmdRS Enable DmdRS Codes DmdRS Depth Voice 64Kbit Available with 96 Kops IDR Framing Normal Swapped Available in BPSK Modulation Enable Disable Ena
61. MHz 5 MHz 2 048 MHz or 1 024 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 8 3 EXT CLK J3 The External Clock Port J3 is used for injecting an external data clock into the modem The data symbol clocks may then be selected to be locked to this source The external clock must meet the following requirements Frequency 9600 Hz to 2 048 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 8 4 XMIT IF OUT J4 The Transmit IF Output Port J4 is the 50 90 MHz and 100 180 MHz Modulator IF Output 5 8 5 TERMINAL J5 The Terminal Port J5 pinouts are listed in Table 5 2 5 26 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces 5 8 6 ALARM J6 The modem has two Form C Dry Contact Alarm Relays onboard and an Alarm Connector located on the rear panel the 9 pin male D sub connector J6 The two relays are designated Modulator Alarm and Demodulator Alarm Non Alarm is defined as the powered state of the relay Thus if there is a Modulator Alarm and or Demodulator Alarm the pins will be connected as shown in Table 5 3 The pin definitions for J6 are shown in Table 5 4 Note that the NC and NO Normally Closed and Normally Open nomenclature applies to non energized relays 5 8 7 REMOTE J7 The Remote Port J7 is the RS 485 connection for remote monitor and control of the modem It is a 9 Pin Female Connector Refer to Table 5
62. Output 57 GND Ground 58 ESCTXC B IDR ESC Transmit 8 Kbps Output Clock B Output 59 ESCTXD B IDR ESC Transmit 8 Kbps Output Data Input 60 ESCRXC B IDR ESC Receive 8 Kbps Clock Output B Output 61 ESCRXD B IDR ESC Receive 8 Kbps Data Output B Output 62 ESCBWO 4NO IDR ESC Backward Alarm Out 4 Normally Output Open 63 TXO B IBS Transmit Octet Input B Input 64 SYNC DM B Synchronous Data Data Mode Out B Output 65 SYNC CS B Synchronous Data Clear to Send B Input 66 RXO B IBS Receive Octet Output B Output 67 SYNC RS B Synchronous Data Request to Send B Input 68 SYNC RR B Synchronous Data Receiver Ready B Output TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 5 9 SYNC DATA J10 Electrical Interfaces The Synchronized Data Port J10 is used for Synchronous Data Interface and uses RS 422 RS 232 and V 35 Interfaces It is a37 Pin Female Connector Refer to Table 5 11 for the connector pinouts Table 5 11 Synchronized Data Port 37 Pin Female J10 Pin Number Signal Description Direction 4 SD A Send Data A Input 22 SD B Send Data B Input 5 5 Send Timing A Output 23 ST B Send Timing B Output 6 RD A Receive Data A Output 24 RD B Receive Data B Output 7 RS A Request to Send A Input 25 RS B Request to Send B I
63. Receive Octet B Output 17 TT A Terminal Timing A Input 35 TT B Terminal Timing B Input 1 19 20 37 GND Signal Ground Note The DMD2401 Satellite Modem constantly asserts the DM DSR Signal DM and DSR are actually the same signal The modem is always in the condition of being able to accept data DTR Input to the modem is not necessary and is ignored The DM DSR Output of the modem is located on Pins 11 and 29 as shown above 5 2 9 1 RS 232 Adapter to J9 Table 5 7 provides the pinouts if the user wishes to fabricate an adapter from a 25 Pin RS 232 to J9 Table 5 7 25 Pin RS 232 Adapter to J9 25 Pin Signal 37 Pin Signal Description Direction Connector Connector J9 7 GND 1 GND Signal Ground 4 RTS 7 RS A Request to Send A Input 5 CTS 9 CS A Clear to Send A Output 6 DM 11 DM A DSR Data Mode A Output 8 RR 13 RR A RLSD Receive Ready A Output 2 SD 4 SD A Send Data A Input Q 3 RD 6 RD A Receive Data A Output 24 TT 17 TT B Transmit Timing A Input 17 RT 8 RT A Receive Timing A Output 15 ST 5 ST A Send Timing A Output 065 Rev 3 3 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 2 9 2 V 35 Adapter to J9 Table 5 8 provides the pinouts if the user wishes to fabricate an adapter from a 37 Pin V 35 to J9 Table 5 8 25 Pin V 35 Adapter to J9
64. Set The DMD2401 Opcode Command Set is listed below separated by commands that control the modulator only the demodulator only or the entire module 4 44 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 4 4 10 Modulator Command Set Command Opcode User Interfaces 065 Rev 3 3 Query Mod All 2400h Query Mod Latched Alarms 2405h Query Mod Current Alarms 2408h Query Mod Status 240Bh Query Mod RTS Level 2433h Mod All 260111 Command Mod Frequency 2602h Command Mod Data Rate 2604h Command Mod Modulation Type 2606h Command Mod Convolutional Encoder 2607h Command Mod Differential Encoder 2608h Command Mod Carrier Control 2609h Command Mod Carrier Selection 260Ah Command Mod Clock Control 260Bh Command Mod Clock Polarity 260Ch Command Mod Drop Mode 260Eh Command Mod Output Level 260Fh Command Mod Reed Solomon Encoder 2610h Command Mod Spectrum 2611h Command Mod Operating Mode 2612h Command Mod Scrambler Control 2613h Command Mod Scrambler 2614h Command Module Ext Ref Source 2616h Command Mod Terrestrial Loopback 2617h Command Mod Baseband Loopback 2618h Command Mod Mode 2619h Command Mod External EXC Clock 261Ah Command Mod Ext R
65. Steps lt 4 gt Data Rate Binary Value 1 BPS Steps lt 1 gt Sweep Boundary Sweep Limits Max of 42 kHz lt 4 gt External Unsigned Binary Value in Hz Reference lt gt Freq Reference 0 Internal 1 External Source lt 1 gt Input Level Limit Lower Level Limit Binary Value 1 dB Steps Negative Sign Implied lt 1 gt Demodulation 0 QPSK 1 BPSK 2 8PSK 4 OQPSK Type lt 1 gt Convolutional 0 None Decoder 1 Viterbi 1 2 Rate 3 Viterbi 3 4 Rate 5 Viterbi 7 8 Rate 7 Sequential 1 2 Rate 9 Sequential 3 4 Rate 11 Sequential 7 8 Rate 14 Trellis 2 3 20 TPC 0 7932D 21 TPC 0 4953D lt gt Reed Solomon 0 Disable 1 Enable 1 Reed Solomon N Unsigned Binary 1 Reed Solomon Unsigned Binary 1 Reed Solomon T Unsigned Binary lt gt RS Interleaver Unsigned Binary 4 or 8 Depth 1 Differential 0 Off 12 On Decoder lt gt Descrambler 0 Disable 1 Enable Control lt 1 gt Descrambler 0 None Type 1 IBS Scrm 2 V35_IESS 3 V35_CCITT 4 V35_EFDATA 7 Reed Solomon Scrm 8 V 35_EFRS lt 1 gt Spectrum 0 Normal 1 Inverted 4 68 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces lt 4 gt Buffer Size Byte 1 2 Buffer Size in ms Byte 3 4 Buffer Size in Bytes lt 1 gt Buffer Clock 0 External 1 Internal 2 EXC 3 RX SAT Buffer Clock 0 Normal 1 Inverted 1 Polarity 1i Opera
66. V 065 Rev 3 3 4 55 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt 1 gt lt 1 gt lt 2 gt lt 4 gt lt 1 gt lt 2 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt 4 56 12 V Voltage 12 V Voltage Tx Temperature Reserved Remote AUPC Status Remote AUPC Eb No Daughter Card Fault Transmit IDR Backward Alarms Control Mode Drop Alarm Status 12 V Implied Decimal Point ex 121 12 1 V 12 V Implied Decimal Point and Minus Sign ex 118 11 8 V Degrees C Implied Decimal Point ex 490 49 0 Temperature is measured at the output amplifier and does not represent the overall internal temperature Ignore These Bytes Note The following byte applies only if an asynchronous interface card or an IDR or IBS interface card is installed and the AUPC option is installed and the AUPC is enabled If not ignore this byte Bit 0 AUPC Communication Error Bits 1 2 Eb No Status 0 Eb No is Invalid 1 Eb No is Valid 2 Eb No is Smaller than Indicated Value 8 Eb No is Larger than Indicated Value Note The following two bytes apply only if an asynchronous interface card or an IDR or IBS interface card is installed and the AUPC option is installed and the AUPC is enabled If not ignore Note The following two bytes Unsigned Binary Value Decimal Point Implied Note The following byte applies only if an
67. a checksum error response is returned to the message frame originator The entire message frame is discarded and the wait for SYN mode goes back into effect If the OPCODE resides within a command message it defines the class of action that denotes an instruction that is specific to the device type and is a prefix to the DATA field if data is required If the OPCODE resides within a query message packet then it defines the query code and can serve as a prefix to query code DATA The Frame Sequence Number FSN is included in every message packet and increments sequentially When the M amp C computer or bus linked equipment initiates a message it assigns the FSN as a tag for error control and handshaking A different FSN is produced for each new message from the FSN originator to a specific device on the control bus If a command packet is sent and not received at its intended destination then an appropriate response message is not received by the packet originator The original command packet is then re transmitted with the same FSN If the repeated message is received correctly at this point it is considered a new message and is executed and acknowledged as such 065 Rev 3 3 4 37 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem If the command packet is received at its intended destination but the response message acknowledgment is lost then the message originator usually the M amp C computer re transmits the orig
68. allow control of the maximum and minimum power output levels Second a default power level is specified which takes precedence over the output power level during signal loss or loss of AUPC channel communication The default power level should normally be set to a high enough level to reestablish communication regardless of rain fade The other controls are built into the operating control software to limit response times and detect adverse operating conditions 3 5 DMD2401 Asynchronous Overhead Operation 3 5 1 Asynchronous Framing Multiplexer Capability The Asynchronous Framing Multiplexer is capable of multiplexing a relatively low speed overhead channel onto the terrestrial data stream resulting in a slightly higher combined or aggregate data rate through the modem The overhead channel is recovered at the far end This added channel is termed variously An Overhead Channel Service Channel Channel or IESS terminology an ES to ES Data Channel The basic frame structure used by the multiplexer is specified in the IESS 309 standard Page 60 Figure 10 resulting in a 16 15 aggregate to through data ratio For Regular Async Standard IBS the Baud Rate is approximately 1 2000 of the Data Rate listed in the table below For Enhanced Async IBS Async the Baud Rate is selectable but limited by the Data Rate The maximum Baud Rate is 19 200 bps for IBS Async Two software controlled modes are designed into t
69. but will be ignored 0 Force Alarm Always ON 1 Force Alarm Always OFF 2 Normal Operation TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces lt gt IDR Force Backward Alarm 2 lt gt IDR Force Backward Alarm 3 lt gt IDR Force Backward Alarm 4 Interface Type Note The following byte applies only if an IDR OR IBS interface card is installed and the transmit mode parameter is set to IDR Mode If an IDR OR IBS interface card is not installed set to zero If an IDR OR IBS interface card is installed but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values but will be ignored 0 Force Alarm Always ON 1 Force Alarm Always OFF 2 Normal Operation Note The following byte applies only if an IDR OR IBS interface card is installed and the transmit mode parameter is set to IDR Mode If an IDR OR IBS interface card is not installed set to zero If IDR OR IBS interface card is installed but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values but will be ignored 0 Force Alarm Always ON 1 Force Alarm Always OFF 2 Normal Operation Note The following byte applies only if an IDR OR IBS interface card is installed and the transmit mode parameter is set to IDR Mode If an IDR OR IBS interface card is not installed set to zero If IDR OR IBS interface card is installed
70. containing information for multiple remote sites while the remote sites transmit back to the Hub on a timed basis Each of these remotes is said to burst its information back on a specific frequency This may be the same inbound frequency for all sites Each of the remotes is responsible for accessing its own information from the outbound data stream by reading the address assigned to specific parts of the data The TDMA network usually looks like the Star network shown in Figure 3 2 The DMD2401 is specifically designed to be usable as the remote site modem of a TDMA network when coupled with a proper Burst demodulator at the hub site 3 2 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Operation 3 3 DMD2401 Initial Configuration Check The DMD2401 is shipped from the factory with preset factory defaults Upon initial power up a user check should be performed to verify the shipped modem configuration Refer to Section 3 Operation for the Modulator and Demodulator Front Panel Menu Screens to locate and verify the following configuration settings are correct Note Transmit Tx and Receive Rx Interface types are dependent upon the customer s order Standard DMD2401 Factory Configuration Settings Modulator Data Rate 2 048 000 Kbps Forward Error Correction 1 2 Rate Viterbi Modulation QPSK Frequency 70 000000 MHz 950 000000 MHz L Band Option Modulator Output Power 30 dBm Carrier Off Demodulator D
71. of T1 D4 T1 ESF or T1 D4 S or T1 ESF S type terrestrial framing format limits the terrestrial timeslots to values from 1 24 2 The selection of PCM 30 or PCM 30C type terrestrial framing limits the terrestrial timeslots to values from 1 15 17 31 In these modes terrestrial timeslot 16 is reserved for ABCD signaling and may not be dropped or inserted 3 The selection of PCM 31 or PCM 31C type terrestrial framing limits the terrestrial timeslots to values from 1 31 Therefore the terrestrial framing format should be identified via the Drop Mode and Insert Mode entries prior to editing the Drop or Insert satellite channel to terrestrial timeslot maps 3 10 4 1 Insert Terrestrial Frame Source The insert terrestrial frame source selection tells the modem where the insert terrestrial frame is coming from External means the terrestrial frame is to be input via the Insert Data In port Internal means that the modem needs to generate the terrestrial frame and that all non inserted timeslots need to be filled with the appropriate idle code based upon the terrestrial framing T1 or E1 In addition the selection of the insert terrestrial frame source also influences the Buffer Clock selection in the following manner 3 10 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Operation When the insert terrestrial frame source selection is set to External the received satellite data will be clocked out of the Doppler buffer base
72. only if an Asynchronous Interface Card is installed If not set to zero 0 V 35 1 RS 422 2 RS 232 Note The following byte applies only if a Synchronous Multiprotocol interface card is installed If not set to zero 0 V 35 1 RS 422 2 RS 232 Note The following byte applies only if a symmetric G 703 interface card is installed If not set to zero TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt gt lt 2 gt lt 2 gt lt 2 gt G 703 Interface Type BPSK Symbol Pairing AUPC Enable AUPC Eb No AUPC Minimum Power Limit AUPC Maximum Power Limit 065 Rev 3 3 User Interfaces 0 G703T1AMI 1 G703T1B8ZS 2 G703BE1 3 G703UE1 Note The following byte applies to all DMD2401 modems regardless of interface type 0 Normal 1 Swapped Note The following byte applies only if an Asynchronous Interface Card or an IDR OR IBS Interface Card is installed AND the AUPC option is also installed If not set to zero Note AUPC minimum power level lt AUPC default power level lt max power level 0 Disabled 1 Enabled Note The following two bytes apply only if an Asynchronous Interface Card or an IDR OR IBS Interface Card is installed AND the AUPC option is also installed If not set to zero Note AUPC minimum power level AUPC default power level AUPC max power level Unsigned Binary 1 Decimal Point Implied
73. set of Arrow or Cursor keys 7 4 gt lt used to navigate the parameter currently being monitored or controlled Table 4 3 describes the key functions available at the front panel 4 2 TMO65 Rev 3 3 User Interfaces 4 1 4 Parameter Setup The four arrow keys 7 4 gt lt to the right of the LCD display are used to navigate the menu tree and select the parameter to be set After arriving at a parameter that needs to be modified depress lt ENTER gt The first space of the modifiable parameter highlights blinks and is ready for a new parameter to be entered After entering the new parameter using the keypad Refer to Figure 4 2 depress lt gt to lock in the new parameter If a change needs to be made prior to pressing ENTER depress CLEAR and the display defaults back to the original parameter Depress ENTER again and re enter the new parameters followed by ENTER Following a valid input the DMD2401 will place the new setting into the nonvolatile EEPROM making it available immediately and available the next time the unit is powered up DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Table 4 3 Edit Mode Key Functions Front Panel Only Parameter 0 9 T lt gt Clear amp lt Clear amp Type gt Fixed Point Changes Toggles Toggles Moves Moves N A N A Decimal Digit If Signed If Signed Cursor 1 Cursor 1 Position
74. the Radyne product it should disregard the parameters at the end of the non volatile section and index to the start of the volatile section If packets are handled in this fashion there will also be backward compatibility between Radyne equipment and M amp C systems Remote M amp C systems need not be modified every time a feature is added unless the user needs access to that feature 4 4 7 Flow Control and Task Processing The original packet sender the M amp C computer relies on accurate timeout information with regard to each piece of equipment under its control This provides for efficient bus communication without unnecessary handshake overhead timing One critical value is designated the Inter Frame Space FS The Inter Frame Space provides a period of time in which the packet receiver and medium control bus and M amp C computer interface fully recover from the packet transmission reception process and the receiver is ready to accept a new message The programmed value of the Inter Frame Space should be greater than the sum of the turnaround time and the round trip sender receiver bus propagation time including handshake overhead The term turnaround time refers to the amount of time required for a receiver to be re enabled and ready to receive a packet after having just received a packet In flow control programming the Inter Frame Space may be determined empirically in accord with the system configuration or calculated based on
75. the incoming carrier Possible Cause Improper receive input to modem Action Check that the receive cabling is correct Possible Cause Receive carrier level too low Action Check that the receive cabling is correct that the downconverter is properly set and that the LNA is turned on If a spectrum analyzer is available locate and measure the receive level which should not be below 65 dBm absolute 50 dBm is nominal Possible Cause Receive carrier frequency outside of acquisition range Action Check that the receive acquisition range is adequate for the possible system offsets Setting the value to 30 kHz is a standard value encompassing all normal offsets After acquisition the actual receive frequency can be read from the front panel Possible Cause Transmit carrier incompatible Action Check the receive parameter settings and ensure that they match those on the modulator Possible Cause Modem is in test mode Action Check the modem front panel for yellow warning LEDs indicating a test mode is enabled Self Test or IF Loopback disconnects the Demodulator from the IF receive input connector Symptom The Async Port is not configured correctly Action Refer to Section 5 8 to correctly set switches for correct configuration 6 2 DMD2401 Fault Philosophy The DMD2401 performs a high degree of self monitoring and fault isolation The alarms are separated into three categories Active Alarms Common Equipment Alarms and Latc
76. two Form C Dry Contact Alarm Relays onboard and an Alarm Connector located on the rear panel the 9 pin male D sub connector J6 The two relays are designated Modulator Alarm and Demodulator Alarm Non Alarm is defined as the powered state of the relay Thus if there is a Modulator Alarm and or Demodulator Alarm the pins will be connected as shown in Table 5 3 The pin definitions for J6 are shown in Table 5 4 Note that the NC and NO Normally Closed and Normally Open nomenclature applies to non energized relays 5 6 7 REMOTE J7 The Remote Port J7 is the RS 485 connection for remote monitor and control of the modem It is a 9 Pin Female Connector Refer to Table 5 5 for the connector pinouts 5 6 8 SWITCH INTERFACE J8 The Switch Connector Port J8 is the redundancy switch connector It is a 68 Pin High Density Female Connector Refer to Table 5 8 for connector pinouts 5 6 9 SD J9 The Send Data Port 49 is the unbalanced Send Data BNC Connector 5 6 10 DDO J10 The Data Drop Out Port J10 is the unbalanced Data Drop Out BNC Connector 5 6 11 IDI J11 The Insert Data In Port J11 is the unbalanced Insert Data In BNC Connector 5 6 12 RD J12 The Receive Data Port J12 is the unbalanced Receive Data BNC connector 5 6 13 ESC ALARMS J14 The ESC Alarm Interface Port J14 is the ESC Alarm Connector It is a 25 Pin Female D Connector Refer to Table 5 14 for connector pinouts 06
77. 0 Ver 2 Intf Pres IDR G 703 5 V Mon 44 8 12 V Mon 412 4 12 V Mon c 12 1 Events 4 29 SETUP G703 Intf B El Buffer msec 32 BufClk Sel RX SAT Rx Framing 96kBit IDR IDR OH Type Voice ESC Ch 41 0 ESC Ch 2 0 ALARM Mask RxBack1 F Yes RxBack2 F RxBack3 F Yes RxBack4 F Figure 4 8 IDR G 703 Interface Control Terminal Screen 1 Main Menu 2 Control Mode Terminal 3 Remote Mode RS 485 4 Remote Addr 32 6 Center Buffer Buffer Fill 49 GENERAL EXC Clock 10000000 Ref Source Internal Ext Ref Fq 10 000000 38 ForceTxBack Normal 42 Tx Ckt ID 43 Rx Ckt ID Enter Selection Number IF Input dBm 40 2 9 V Eb No 9 26 Uncorrected SER 0 E 5 Corrected BER 0 12 Offset 2 4 2047 Error Cnt NO SYNC 2047 BER NO SYNC TX SETUP 51 G703 Intf U E1 55 Tx Framing 1 15 IBS TxAsync Port RS 485 ALARM TxBack F Mask 64 No 80 9T 82 83 SW F04780 Ver 2 Intf Pres D amp I G 703 5 V Mon 4 8 12 V Mon 12 5 12 V Mon 12 1 Events 32 SETUP Rx G703 Intf U El Buffer msec 32 BufClk Sel RX SAT Rx Framing 1 15 IBS RxAsync Port RS 485 ALARM Mask Prompt P No Service P No BER No RxBack lt P No Figure 4 9 IBS G 703 Interface Control Terminal Screen 4 28 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 1 Mai
78. 0 1 12 Eb No 6 6 Figure 6 5 Trellis 8PSK BER Curve TMO65 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Maintenance 6 5 DMD2401 AGC Curve Figure 6 6 represents the AGC Curve for the DMD2401 DMD2401 AGC Curve AGC Output Voltage V 0 10 20 30 40 50 60 70 80 Input Level dBm Figure 6 6 DMD2401 AGC Curve IBS Fault Conditions and Actions Figure 6 7 and Table 6 4 illustrate the IBS Fault Conditions and Actions to be taken at the Earth Station at the Terrestrial Data Stream and the Satellite These faults include those detected on the Terrestrial link and those detected from the satellite A D IBS Earth Station l From Transmit To Terrestrial Satellite Line PS Se eee eee ee E Terrestrial EUM i ll H Line Side 1 L 4 Maintenance Entity Figure 6 7 IBS Alarm Concept 065 Rev 3 3 6 7 Maintenance DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Table 6 4 IBS Fault Conditions and Actions includes Drop and Insert Fault Detected on Terrestrial Link Across Interface A FA1 Loss of Terrestrial Input FA2 Loss of Terrestrial Signaling FAS Loss of Terrestrial Frame FA4 Loss of Terrestrial Multiframe 5 BER of 1x 107 or Greater on Terrestrial Input FA6 Alarm
79. 048 MHz or 1 024 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 7 3 EXT CLK J3 The External Clock Port J3 is used for injecting an external data clock into the modem The data symbol clocks may then be selected to be locked to this source The external clock must meet the following requirements Frequency 9600 Hz to 2 048 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 7 4 XMIT IF OUT J4 The Transmit IF Output Port J4 is the 50 90 MHz and 100 180 MHz Modulator IF Output 065 Rev 3 3 5 23 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 7 5 TERMINAL J5 The Terminal Port J5 pinouts are listed below in Table 5 20 Table 5 20 RS 232 Terminal Port 9 Pin Female D Connector J5 Pin Number Signal Description Direction 2 TxD Transmit Data Input 3 RxD Receive Data Output 5 GND Ground 5 7 6 ALARM J6 The modem has two Form C Dry Contact Alarm Relays onboard and an Alarm Connector located on the rear panel the 9 pin male D sub connector J6 The two relays are designated Modulator Alarm and Demodulator Alarm Non Alarm is defined as the powered state of the relay Thus if there is a Modulator Alarm and or Demodulator Alarm the pins will be connected as shown in Table 5 21 Table 5 21 Alarm Relays Alarm No Alarm Modulator Pins 2 and 3 Shorted Pins 1 and 2 Shorted
80. 10 The G 703 Balanced Port J10 is a 15 Pin Female D Connector Refer to Table 5 14 for connector pinouts 5 7 11 RD J12 The Receive Data Port J12 is the unbalanced Receive Data BNC Connector 5 7 12 ESC ALARMS J14 The ESC Alarm Interface Port J14 is a 25 Pin Female D Connector Refer to Table 5 12 for connector pinouts 5 7 13 ESC 8K DATA J15 The ESC 8K Data Port J15 is a 15 Pin Female Connector Refer to Table 5 13 for connector pinouts 5 7 14 ESC 64K DATA AUDIO J17 The ESC 64 K Data Audio Port J17 is a 9 Pin Female D Connector Refer to Tables 5 15 and 5 16 for connector pinouts 065 Rev 3 3 5 25 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 8 DMD2401 Universal Interface J9 J10 J8 J11 J12 J7 96 5 J14 J4 J15 33 J2 J16 J17 E O REF IN RCVIFIN MADE IN USA Figure 5 6 DMD2401 Satellite Modem Universal Interface Connectors 5 81 RCV IF IN J1 The Receive IF Input J1 is the 50 90 MHz and 100 180 MHz Demodulator IF Input 5 8 2 EXT REF IN J2 The External Reference Input Port J2 is used for injecting an external reference frequency into the modem The DMD2401 Master Oscillator is locked to this source All internally generated frequencies within the modem will attain the stability of the applied external reference The external reference must meet the following parameters Frequency 10 MHz 9
81. 102 103 104 105 106 107 91 94 96 97 99 100 101 102 103 104 105 106 107 108 92 95 97 98 99 100 101 102 103 104 105 106 107 108 109 93 96 98 99 100 101 102 103 104 105 106 107 108 109 110 94 96 98 100 101 102 103 104 105 106 107 108 109 110 111 95 97 99 101 102 103 104 105 106 107 108 109 110 111 112 95 98 100 102 103 104 105 106 107 108 109 110 111 112 113 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 96 99 101 103 104 105 106 107 108 109 110 111 112 113 114 97 100 102 104 105 106 107 108 109 110 111 112 113 114 115 98 101 103 104 106 107 108 109 110 111 112 113 114 115 116 99 102 104 105 107 108 109 110 111 112 113 114 115 116 117 100 102 105 106 108 109 110 111 112 113 114 115 116 117 118 100 103 105 107 108 110 111 112 113 114 115 116 117 118 119 101 104 106 108 109 110 111 112 113 114 115 116 117 118 119 120 102 105 107 109 110 111 112 113 114 115 116 117 118 119 120 121 103 106 108 110 111 112 113 114 115 116 117 118 119 120 121 122 104 107 109 111 112 113 114 115 116 117 118 119 120 121 122 12
82. 2 The External Reference Input Port J2 is used for injecting an external reference frequency into the modem The DMD2401 Master Oscillator is locked to this source All internally generated frequencies within the modem will attain the stability of the applied external reference The external reference must meet the following parameters Frequency 10 MHz 9 MHz 5 MHz 2 048 MHz or 1 024 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 5 3 EXT CLK J3 The External Clock Port J3 is used for injecting an external data clock into the modem The data symbol clocks may then be selected to be locked to this source The external clock must meet the following requirements Frequency 9600 Hz to 2 048 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 5 4 XMIT IF OUT J4 The Transmit IF Output Port J4 is the 50 90 MHz and 100 180 MHz Modulator IF Output 5 5 5 TERMINAL J5 The Terminal Port J5 pinouts are listed in Table 5 2 065 Rev 3 3 5 9 Electrical Interfaces 5 5 6 ALARM J6 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem The modem has two Form C Dry Contact Alarm Relays onboard and an Alarm Connector located on the rear panel the 9 pin male D sub connector J6 The two relays are designated Modulator Alarm and Demodulator Alarm Non Alarm is defined as the powered state of the relay Thus if there is a Modulator Alarm and or Demodulator Alarm the pins
83. 2 serial control channel 065 Rev 3 3 1 1 Introduction DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem The DMD2401 can track and acquire a carrier over a programmable range of 1 kHz to 42 kHz Acquisition times of less than 10 seconds are typical at data rates of 64 Kbps over a range of 25 kHz To facilitate link testing the DMD2401 incorporates built in 2047 test pattern generators with BER measurement capability A user selectable terrestrial and or satellite loopback test capability is also provided For applications requiring systems redundancy multiple DMD2401 modems may be used with the Radyne RCS11 1 1 Redundancy Switch or the RCS20 M N lt 9 Redundancy Switch A full range of industry standard interfaces are available for the DMD2401 DMD2401L and DMD2401 IBS IDR These include RS 232 V 35 RS 422 449 and ITU G 703 Available options for the DMD2401 includes a low data rate asynchronous serial overhead channel for remote monitor and control Additionally a Sequential Codec is available for applications requiring compatibility with existing systems Figure 1 1 DMD2401 Satellite Modem 1 1 DMD2401 Available Options A wide range of options are available for the DMD2401 Satellite Modem A brief description of each follows 1 1 1 Reed Solomon Codec The DMD2401 can be equipped with a Reed Solomon outer codec with an interleaver as an optional enhancement The encoder and decoder are complete
84. 219 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 238 219 220 221 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 239 220 221 222 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 240 220 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 241 221 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 242 222 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 243 223 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 244 224 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 245 225 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 246 226 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 247 227 228 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 248 228 229 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 249 229 230 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 250 230 231 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 065 Rev 3 3 8 9 Appendices DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 251 231 232 2
85. 2401 IDR with D amp l 5 16 5 6 1 RCV IF IN J1 5 16 5 6 2 EXT REF IN J2 5 16 5 6 3 EXT CLK J3 5 16 5 6 4 XMIT IF OUT 94 5 16 5 6 5 TERMINAL J5 5 16 5 6 6 ALARM J6 5 17 5 6 7 REMOTE J7 5 17 5 6 8 SWITCH INTERFACE J8 5 17 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 6 9 SD J9 Table of Contents 5 17 5 6 10 DDO J10 5 17 5 6 11 101 J11 5 17 5 6 12 J12 5 17 5 6 13 ESC ALARMS J14 5 17 5 6 14 ESC 8K DATA J15 5 19 5 6 15 G 703 BAL J16 5 20 5 6 16 ESC 64K Data Voice Async J17 5 20 5 7 DMD2401 IDR 5 23 5 7 1 RCV IF IN J1 5 23 5 7 2 EXT REF IN J2 5 23 5 7 3 EXT CLK J3 5 23 5 7 4 XMIT IF OUT J4 5 23 5 7 5 TERMINAL J5 5 24 5 7 6 ALARM J6 5 24 5 7 7 REMOTE J7 5 25 5 7 8 SWITCH INTERFACE J8 5 25 5 7 9 SD J9 5 25 5 7 10 G 703 BAL J10 5 25 5 7 11 RD J12 5 25 5 7 12 ESC ALARMS J14 5 25 5 7 13 ESC 8K DATA J15 5 25 5 7 14 ESC 64K DATA AUDIO J17 5 25 5 8 DMD2401 Universal Interface 5 26 5 8 1 RCV IF IN 5 26 5 8 2 EXT REF J2 5 26 5 8 3 EXT CLK J3 5 26 5 8 4 XMIT IF OUT 94 5 26 5 8 5 TERMINAL J5 5 26 5 8 6 ALARM J6 5 27 5 8 7 REMOTE J7
86. 3 105 108 110 112 113 114 115 116 117 118 119 120 121 122 123 124 108 111 112 114 115 116 117 118 119 120 121 122 123 124 125 109 112 113 115 116 117 118 119 120 121 122 123 124 125 126 110 112 114 116 117 118 119 120 121 122 123 124 125 126 127 111 113 115 117 118 119 120 121 122 123 124 125 126 127 128 112 114 116 117 119 120 121 122 123 124 125 126 127 128 129 113 115 117 118 120 121 122 123 124 125 126 127 128 129 130 114 116 118 119 120 121 122 123 124 125 126 127 128 129 130 131 114 117 119 120 121 122 123 124 125 126 127 128 129 130 131 132 115 118 120 121 122 123 124 125 126 127 128 129 130 131 132 133 116 119 120 122 123 124 125 126 127 128 129 130 131 132 133 134 117 119 121 123 124 125 126 127 128 129 130 131 132 133 134 135 118 120 122 124 125 126 127 128 129 130 131 132 133 134 135 136 119 121 123 125 126 127 128 129 130 131 132 133 134 135 136 137 120 122 124 126 127 128 129 130 131 132 133 134 135 136 137 138 120 123 125 126 128 129 130 131 132 133 134 135 136 137 138 139 121 124 126 127 129 130 131 132 133 134 135 136 137 138 139 140 122 125 127 128 130 131 132 133 134 135 136 137 138 139 140 141 123 126 128 129 130 132 133 134 135 136 137 138 139 140 141 142
87. 3 184 185 186 187 188 189 190 191 193 174 176 177 179 180 181 182 183 184 185 186 187 188 189 190 191 192 194 175 177 178 180 181 182 183 184 185 186 187 188 189 190 191 192 193 195 176 178 179 180 182 183 184 185 186 187 188 189 190 191 192 193 194 196 177 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 197 178 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 198 179 180 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 199 180 181 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 200 180 182 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 201 181 183 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 065 3 3 8 7 Appendices DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 8 8 182 184 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 183 185 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 184 186 187 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 185 187 188 190 191 192 193 194 195 196 197 198 199
88. 34 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 252 233 234 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 253 234 235 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 254 235 236 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 255 236 237 238 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 Note T1 Framing not supported IBS Drop amp Insert 8 10 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Appendices Appendix B Carrier Control B 0 States Carrier Off Modulator Output Disabled Carrier On Modulator Output Enabled refer to Section B 1 Item 1 Carrier Auto Modulator Output Enabled refer to Section B 1 Item 2 Carrier VSat Modulator Output Enabled refer to Section B 1 Item 3 Carrier RTS Modulator Output Enabled refer to Section B 1 Item 4 B 1 Description 1 Modulator output is turned off before reprogramming modulator functions that may alter the output spectrum through the front panel and the user is required to enter Yes to re enable output after the change When using the terminal the modulator is turned off while re programming modulator functions that may alter the output spectrum and the user is required to manually turn on the output after the reprogramming Modulator output is turned off before reprogramming mo
89. 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail Ignore Bit 0 Receive Processor Fault Bit 1 Signal Lock Fault Bit 2 Receive Satellite AIS Fault Bit 3 Rx AGC Input Level Fault Bit 4 Reed Solomon Sync Fault Bit 5 Reed Solomon Excessive Errors Fault Bit 6 Reed Solomon Uncorrectable Word Fault Bit 7 Receive Forced Alarms 0 Pass 1 Fail Bit 0 Buffer Underflow Bit 1 Buffer Overflow Bit 2 Buffer Under 1096 Bit 3 Buffer Over 9096 Bit 4 Rx FPGA Configuration Fault Bit 5 Rx LNB Fault LBST Only Bits 6 7 Spares 0 Pass 1 Fail Bit 0 IF Synthesizer Lock Detect Fault 4 76 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt gt lt 4 gt lt 4 gt lt 2 gt lt 2 gt lt 2 gt lt 4 gt lt 2 gt Latched Alarm 4 Latched Common Alarm Reserved Error Counter Test 2047 Error Counter Raw BER Mantissa Corrected BER Mantissa EbNo Offset Frequency Test 2047 BER Mantissa Raw BER Exponent Corrected BER Exponent Test 2047 BER Exponent Offset Frequency Sign User Interfaces Bit 1 Rx Oversample PLL Lock Detect Fault Bit 2 Buffer Clock PLL Lock Detect Fault Bit 3 Viterbi Decoder Lock Fault Bit 4 Sequential Decoder Lock Fault Bit 5 Rx 2047 Test Pattern Lock Fault Bit 6 External Reference PLL Lock Fault Bit 7 Frame Sync Mu
90. 5 Rev 3 3 5 17 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Table 5 14 ESC Alarm Interface 25 Pin Female D J14 Pin Number Description Direction GND Ground ESCBWO 1NO Backward Alarm Out 1NO Output NC No Connection ESCBWO 2NO Backward Alarm Out 2 NO Output NC No Connection ESCBWO 3NO Backward Alarm Out 3 NO Output GND Ground ESCBWO 4NO Backward Alarm Out 4 NO Output OJN No Connection ESCBWI 2 Backward Alarm In 2 Input ESCBWI 4 Backward Alarm In 4 Input NC No Connection NC No Connection ESCBWO 1C Backward Alarm Out 1 Output ESCBWO 1NC Backward Alarm Out 1 NC Output ESCBWO 2C Backward Alarm Out 2 C Output ESCBWO 2NC Backward Alarm Out 2 NC Output ESCBWO 3C Backward Alarm Out 3 C Output ESCBWO 3NC Backward Alarm Out 3 NC Output ESCBWO 4C Backward Alarm Out 4 C Output ESCBWO 4NC Backward Alarm Out 4 NC Output ESCBWI 1 Backward Alarm In 1 Input ESCBWI 3 Backward Alarm In 3 Input NC No Connection NC No Connection TMO65 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 6 14 ESC 8K DATA J15 Electrical Interfaces The ESC 8K Data Port J15 is the ESC 8K Data Connector
91. 5 20 23 24 25 26 27 28 29 31 16 21 24 25 26 27 28 29 30 32 16 22 24 26 27 28 29 30 31 33 17 22 25 27 28 29 30 31 32 34 17 23 26 28 29 30 31 32 33 35 18 24 27 28 30 31 32 33 34 36 18 24 27 29 30 31 32 33 34 35 37 19 25 28 30 31 32 33 34 35 36 38 19 26 29 31 32 33 34 35 36 37 39 20 26 30 32 33 34 35 36 37 38 40 20 27 30 32 34 35 36 37 38 39 41 21 28 31 33 35 36 37 38 39 40 42 28 32 34 35 36 37 38 39 40 41 43 29 33 35 36 37 38 39 40 41 42 44 30 33 36 37 38 39 40 41 42 43 45 30 34 36 38 39 40 41 42 43 44 46 31 35 37 39 40 41 42 43 44 45 47 32 36 38 40 41 42 43 44 45 46 48 32 36 39 40 42 43 44 45 46 47 49 33 37 40 41 42 43 44 45 46 47 50 34 38 40 42 43 44 45 46 47 48 51 34 39 41 43 44 45 46 47 48 49 52 35 39 42 44 45 46 47 48 49 50 53 36 40 43 45 46 47 48 49 50 51 54 36 41 44 45 47 48 49 50 51 52 55 37 42 44 46 48 49 50 51 52 53 56 38 42 45 47 48 49 50 51 52 53 8 2 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 48 49 50 51 52 53 54 54 55 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Appendices 57 38 43 46 48 49 50 51 52 53 54 55 56 58 39 44 47 49 50 51 52 53 54 55 56 57 59 40 45 48 50 51 52 53 54 55 56 57 58 60 40 45 48
92. 5 for the connector pinouts 5 8 8 SWITCH INTERFACE J8 The Switch Connector Port J8 is the redundancy switch connector It is a 68 Pin High Density Female Connector Refer to Table 5 8 for connector pinouts This connector may be used for multiple interface types by installing either the SCSI to RS 422 or SCSI to V 35 Cable Assembly refer to Table 5 24 Table 5 24 Interface Cable Reference Types Assembly Table for Number Cable Pinouts 5 422 4826 Table 5 25 V 35 4841 Table 5 26 065 Rev 3 3 5 27 Electrical Interfaces Table 5 25 Sync Data Cable Number CA 4826 Pinouts DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Pin Number Signal Description Direction 4 SD A Send Data A Input 22 SD B Send Data B Input 5 ST A Send Timing A Output 23 ST B Send Timing B Output 6 RD A Receive Data A Output 24 RD B Receive Data B Output 7 RS A Request to Send A Input 25 RS B Request to Send B Input 8 RT A Receive Timing A Output 26 RT B Receive Timing B Output 9 CS A Clear to Send A Output 14 MF Mod Fault Open Collector Output 33 DF Demod Fault Open Collector Output 27 CS B Clear to Send B Output 11 DM A Data Mode A Output 29 DM B Data Mode B Output 13 RR A Receiver Ready A Output 31 RR B Receiver Ready B Output 3 BAL EXC A External Clock A Input 21 BAL External Clock Input 16 RX 0 A
93. 57 159 160 162 163 164 165 166 167 168 169 170 171 172 173 174 175 177 158 160 161 163 164 165 166 167 168 169 170 171 172 173 174 175 176 178 159 161 162 164 165 166 167 168 169 170 171 172 173 174 175 176 177 179 160 162 163 165 166 167 168 169 170 171 172 173 174 175 176 177 178 180 160 162 164 165 167 168 169 170 171 172 173 174 175 176 177 178 179 181 161 163 165 166 168 169 170 171 172 173 174 175 176 177 178 179 180 182 162 164 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 183 163 165 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 184 164 166 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 185 165 167 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 186 166 168 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 187 167 169 170 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 188 168 170 171 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 189 171 172 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 190 171 173 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 191 172 174 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 192 173 175 176 178 179 180 181 182 18
94. 61 BufUFlo P 81 5Volts P No 22 TxPower P No 42 SigLock P 62 BufOFlo P 82 12Volts P No 23 TxOSC1k P No 43 IFSynth P 63 Buf lt 10 P 83 12Volts P No 24 TxCmpCk P No 44 BuffPLL P 64 Buf gt 90 P 84 IntFPGA P No 25 TxSynth P No 45 RxLevel P 65 VitLock P 85 Battery P No 26 P No 46 RxFPGA P 66 SeqLock P 86 RAM ROM P No MOD MINOR MASK 47 FrmSync P 67 Buf 87 MC uProc P No 28 TerrClk P No 48 MFrSync P 68 RxBNCCk P 88 ExRefLck P No 29 Int No 69 RxSatCk P 89 ExRefAct P No 30 TxSatCk P No 70 Sat AIS P 90 No 31 No 71 RS Lock P 32 Tx Data F No 72 RS Intr P 33 TerrAIS P No TIa RS USW P 93 Force Tx No 34 RS FIFO P No 94 Force Rx No Enter Selection Number Figure 4 6 Alarm Status Terminal Screen 1 Main Menu IF Input dBm 31 3 7 V SW F04780 Ver 1 3 2 Control Mode Terminal Eb No gt 20 00 Intf Pres IDR G 703 3 Remote Mode RS 485 Uncorrected SER 0 E 5 5 V Mon 4 9 4 Remote Addr 101 Corrected BER 0 12 12 V Mon 12 6 Offset Frq Hz 8 212 V Mon 25 11 9 6 Center Buffer 2047 Error Cnt NO SYNC Events 10 Buffer Fill 50 2047 BER NO SYNC LATCHED ALARM STATUS MOD MAJOR DEMOD MAJOR DEMOD MINOR COMMON TxuProc Pass RxuProc Pass BufUFlo Pass 5 Volts Pass TxPower Pass SigLock Pass BufOFlo Pass 12Volts Pass TxOSClk Pass IFSynth Pass Buf 10 Pass 12
95. 65 Rev 3 3 3 5 Operation DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 3 6 Standard IBS Mode In the first or Normal mode all bit assignments are per the IBS standard The bits of Overhead Housekeeping byte 32 are implemented as shown below Bit 1 ES to ES Data This bit is routed directly to the ES to ES Data Channel Channel Its data rate is 1 512 of the aggregate rate Or 1 480 of the through terrestrial data rate and is normally used to super sample an asynchronous data channel Bit 2 Frame Alignment Part of the Frame Alignment word Bit 3 Backward Alarm Transmit and Receive with main processor to activate main alarm LED Bit 4 Multiframe Message As per IBS Bits 5 and6 Spare Not currently utilized Bits 7 and 8 Encryption Utilization Not currently utilized The ratio of the through terrestrial data channel rate to the aggregate rate is 15 16 The standard transmit and receive channels of the ES to ES data channel in standard IBS mode are raw channels operating at the specific bit rate as controlled by the data channel rate without buffering In addition no clocks are provided with this channel Since it would be rare that the data rate provided was exactly that required for a standard rate device the only method of communicating using this channel is to allow it to super sample the user data 3 7 Asynchronous Multiplexer Mode Since many of the frame bits in the standard IBS mode are not
96. 85 Switch Settings RS 232 or Only RS 485 Table 5 35 Async Port DIP Table 5 36 Async Port DIP Switch Settings RS 232 Switch Settings RS 232 Only with CTS amp RTS Null or RS 485 1 ON 1 OFF 2 ON 2 OFF 3 OFF 3 ON 4 OFF 4 ON 5 ON 5 OFF 6 6 5 34 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces Table 5 37 Async Port DIP Switch Settings RS 232 Null Only with CTS amp RTS 5 9 1 5 3771 Daughter Card Table 5 38 is used to configure AS 3771 Daughter Card This card comes without switches To configure it find the resistor location that corresponds to the equivalent switch on the other interfaces and install the appropriate resistor To place a switch in the OFF position corresponds to a TBD Ohm resistor To place a switch in the ON position corresponds to a 00 Resistor For example to place Switch 3 in the ON position install a 00 Resistor for location R71 Table 5 38 AS 3771 Daughter Card Resistor Location Corresponds to Switch OFF TBD ON 00 Resistor 065 Rev 3 3 5 35 Electrical Interfaces 5 9 2 AS 4803 Daughter Card DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Table 5 39 is used to configure AS 4803 Daughter Card This card comes without switches To confi
97. 97 Preliminary Release 2 0 3 1 99 Added IBS IDR Update information New Interfaces Section Updated Remote Spec 3 0 3 15 01 Revised manual format 3 1 3 11 02 Revised Section 4 and 5 6 16 Added new product features 3 2 5 28 02 Revised Technical Manual 33 5 29 02 Revised opcodes and commands 065 Rev 3 3 V vi DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem This Page is Intentionally Left Blank TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Table of Contents Section 1 Introduction 1 0 Description Table of Contents 1 1 1 1 DMD2401 Available Options 1 2 1 1 1 Reed Solomon Codec 1 2 1 2 Sequential Decoding 1 2 1 3 Asynchronous Overhead Channel 1 2 1 3 1 4 Customized Options 1 3 1 6 Analog AGC Voltage 1 3 1 7 Drop and Insert 081 1 3 1 1 1 1 1 5 8PSK Modulation 1 1 1 1 8 Turbo Product Codec TPC 1 3 Section 2 Installation 2 0 Installation Requirements 2 1 2 1 Unpacking 2 1 2 2 Removal and Assembly 2 1 2 3 Mounting Considerations 2 2 2 4 Modulator Checkout 2 2 2 4 1 Initial Power Up 2 2 Section 3 Operation 3 0 Theory of Operation 3 1 3 1 DMD2401 Operation 3 1 3 2 Applications 3 1 3 2 1 SCPC Point to Point Links 3 1 3 2 3 2 2 SCPC Point to Multi Point Links in a Broadcast Appl
98. B G 703 Send Data Input B Input 36 SYNC SD B Synchronous Data Send Data Input B Input 37 ESCBWO 1 NC IDR ESC Backward Alarm Out 1 Normally Output Closed 38 G703B IDI B G 703 Insert Data Input B Input 39 SYNC ST B Synchronous Data Send Timing Output B Output 40 ESCBWO 2C IDR ESC Backward Alarm Out 2 Common Output 41 SYNC TT B d Data Terminal Timing Input Input 42 ESCBWO 2NO IDR ESC Backward Alarm Output 2 Output Normally Open 43 DDO B RT B G 703 Drop Data Out B Synchronous Data Output Receive Timing Output B 44 ESCBWO 3NC IDR ESC Backward Alarm Out 3 Normally Output Closed 45 IDO B RD B G 703 Insert Data Out Synchronous Data Output 065 Rev 3 3 5 11 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Receive Data 46 ESCBWO 4 IDR ESC Backward Alarm Out 4 Common Output BAL EXC B External Clock Input B Input 48 GND Ground 49 ESCAUDTX 1B IDR ESC Audio Input Channel 1B Input 50 ESCAUDTX 2B IDR ESC Audio Input Channel 2B Input 51 ESCAUDRX 1B IDR ESC Audio Output Channel 1B Output 52 ESCAUDRX 2B IDR ESC Audio Output Channel 2B Output 5 ESCBWI 4 IDR ESC Backward Alarm Input 4 Input 54 ES TXD B BWI 2 IBS ES Transmit Data B Input IDR ESC Backward Alarm Input 2 55 DMD FLT Demod Fault Open Collector Output Output Collector 56 ES RXD B IBS ES Receive Data Input B
99. Bit 3 of NFAS TSO Yellow Alarm AD2 1 in Bit 3 of Byte 32 AD2 1 in Bit 3 of Byte 32 AD2 1 in Bit 3 of Byte 32 AD2 1 in Bit 3 of Byte 32 TMO65 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Technical Specifications Section 7 Technical Specifications 7 0 Introduction This section defines the technical performance parameters and specifications for the DMD2401 and DMD2401L Satellite Modems 7 1 Transmit and Receive Data Rates Optional Data Rate Setting 7 2 Modulator Specifications Frequency Range Frequency Stability Level Control Level Stability Impedance Return Loss Output Off Isolation Spurious Output FEC Differential Encoding Scrambler BPSK 1 2 Rate BPSK 3 4 Rate BPSK 7 8 Rate QPSK 1 2 Rate QPSK 3 4 Rate QPSK 7 8 Rate OQPSK 1 2 Rate OQPSK 3 4 Rate OQPSK 7 8 Rate 8PSK 2 3 Rate 4800 bps 1250 Kbps 7200 bps 1875 Kbps 8400 bps 2187 5 Kbps 9600 bps 2500 Kbps 14400 bps 3750 Kbps 16800 bps 4375 Kbps 9600 bps 2500 Kbps 14400 bps 3750 Kbps 16800 bps 4375 Kbps Selectable in 1 bps steps 50 90 and 100 180 MHz or 950 1750 MHz Optional L Band 1 Hz steps 2 5 ppm 220 Hz at 88 MHz 5 to 30 0 dBm 0 1 dB steps 0 5 dB from 0 to 50 C 75Q or 50Q Front Panel Selectable 20 dB minimum gt 60 dB lt 55 dBc In Band lt 45 dBc Out of Band 1 2 3 4 and 7 8 Vi
100. CD Front Panel Display Displays DMD2401 Operating parameters and Configuration data of the cursor in the LCD Display window 3 Numeric Keypad Allows entry of numeric data and Clear and 2 Cursor Control Arrows Controls the up down right and left motion Enter function keys description of these LEDs 4 Front Panel LED Indicators See Paragraph 4 1 2 below for an itemized 4 1 1 Front Panel LCD Display The front panel display is a 2 line by 16 character LCD display The display is lighted and the brightness can be set to increase when the front panel is currently in use The LCD display automatically dims after a period of inactivity The display has two distinct areas showing current information The upper area shows the current parameter being monitored such as Frequency or Data Rate The lower line shows the current value of that parameter The LCD display is a single entry window into the large matrix of parameters that can be monitored and set from the front panel 065 Rev 3 3 4 1 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 4 1 2 Front Panel LED Indicators Eight LEDs on the DMD2401 front panel Refer to Table 4 2 indicate the status of the DMD2401 s operation The LED colors maintain a consistent meaning Green signifies that the indication is appropriate for normal operation Yellow means that there is a condition not proper for normal operation and Red indic
101. DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Installation and Operation Manual 065 Rev 3 3 2002 2002 Radyne ComStream Corporation This manual may not in whole or in part be copied reproduced translated or reduced to any electronic or magnetic storage medium without the written consent of a duly authorized officer of Radyne ComStream Corporation Radyne ComStream Corporation 3138 E Elwood St Phoenix AZ 85034 602 437 9620 Fax 602 437 4811 G Latest Software Revision Confirmation When new features are added to Radyne ComStream Corporation equipment the control parameters are appended to the end of the Non Volatile Section of the Remote Communications Specification and status of the features if any are added at the end of the Volatile Section If a remote M amp C queries two pieces of Radyne ComStream Corporation equipment with different revision software they could respond with two different sized packets The remote M amp C MUST make use of the non volatile count value to index to the start of the Volatile Section If the remote M amp C is not aware of the newly added features to the product it should disregard the parameters at the end of the Non Volatile Section and index to the start of the Volatile Section Before creating any software based on the information contained in this document contact the Radyne ComStream Corporation Customer Service Department
102. DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces Rx D amp I menu Insert Mode Enable Disable E1 Mode PCM30 PCM30C PCM31 PCM31C T1 Mode T1 D4 T1 ESF T1 D4 S T1 ESF S 4 2 5 Monitor Menu Options and Parameters Level Estimated receive signal in dBm as seen by the Demodulator AGC Voltage Optional Configuration Displays the voltage level of AGC present at Pin 5 of the Alarm Connector J6 Eb No Estimated Eb No as seen by the Demodulator SER Estimated channel error rate before decoding measured by the modem CBER 0 00 x 1077 Estimated corrected bit error rate after decoding Error Count Displays the current error count from the Viterbi Decoder Offset Freq The received carrier frequency offset as measured by the modem Event Buff A history of events recorded in the event buffer A maximum of 40 events may be stored in the buffer Upon receipt of the 417 event the first received event is automatically deleted maintaining the last 40 events Press Clr to Erase Events Clears the contents of the Event Buffer Voltages menu 5 Volt Displays the measured 5 VDC power bus inside the modem 12 Volt Displays the measured 12 VDC power bus inside the modem 12 Volt Displays the measured 12 VDC power bus inside the modem Buffer Stat 0 100 Displays the buffer full status Press Clr to Center Buffer Centers the buffer 065 Rev 3 3 4 11 User Inter
103. DMD2401 IBS IDR Satellite Modem lt gt lt gt Alarm 2 Mask Alarm 3 Mask Alarm 4 Mask Common Alarm 1 Mask Reserved BER Measure Period Rx Circuit ID Rx Terrestrial Loopback Rx Baseband Loopback Bit 1 Signal Lock Fault Bit 2 Receive Satellite AIS Fault Bit 3 Rx AGC Level Fault Bit 4 Reed Solomon Sync Fault Bit 5 Reed Solomon Excessive Errors Fault Bit 5 Reed Solomon Uncorrectable Word Fault Bit 7 Receive Forced Alarm 0 Mask 1 Allow Bit 0 Buffer Underflow Bit 1 Buffer Overflow Bit 2 Buffer Under 1096 Bit 3 Buffer Over 9096 Bit 4 Receive FPGA Configuration Fault Bit 5 Rx LNB Fault LBST Only Bit 6 7 Spares 0 Mask 1 Allow Bit 0 IF Synthesizer Lock Detect Fault Bit 1 Rx Oversample PLL Lock Detect Fault Bit 2 Buffer Clock PLL Lock Detect Fault Bit 3 Viterbi Decoder Lock Fault Bit 4 Sequential Decoder Lock Fault Bit 5 Rx 2047 Test Pattern Lock Fault Bit 6 External Reference PLL Lock Fault Bit 7 Frame Sync Fault 0 Mask 1 Allow Bit 0 Buffer Clock Activity Detect Fault Bit 1 External BNC Activity Detect Fault Bit 2 Rx Satellite Clock Activity Detect Fault Bit 3 External Reference PLL Activity Fault Bits 4 7 Spares 0 Mask 1 Allow Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 2 5 V alarm Bit 3 Temperature Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault
104. Fault LBST Only 0 Pass 1 Fail Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 2 5 V alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail Bit 0 Receive Processor Fault 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces lt 1 gt lt 1 gt lt 1 gt 1 Demodulator Alarm 2 Demodulator Alarm 3 Demodulator Alarm 4 Demodulator Common Alarm 1 Demodulator Alarm 5 Control Mode Bit 1 Signal Lock Fault Bit 2 Receive Satellite AIS Fault Bit 3 Rx AGC Input Level Fault Bit 4 Reed Solomon Sync Fault Bit 5 Reed Solomon Excessive Errors Fault Bit 6 Reed Solomon Uncorrectable Word Fault Bit 7 External Reference PLL Lock Fault 0 Pass 1 Fail Bit 0 Buffer Underflow Bit 1 Buffer Overflow Bit 2 Buffer Under 10 Bit 3 Buffer Over 90 Bit 4 Receive FPGA Fault Bit 5 Rx LNB Fault LBST Only Bits 6 7 Spares 0 Pass 1 Fail Bit 0 IF Synthesizer Lock Detect Fault Bit 1 Rx Oversample PLL Lock Detect Fault Bit 2 Buffer Clock PLL Lock Detect Fault Bit 3 Viterbi Decoder Lock Fault Bit 4 Sequential Decoder Lock Fault Bit 5 Rx 2047 Test Pattern Lock Fault Bit 6 External Reference PLL Lock Fault Bit 7 Frame Sync Fault 0 Pass 1 Fail Bit 0 Buffer Clock Activity Detect Fault Bit 1 Externa
105. HEAD CHANNEL INTERFACE CONTROLS GENERAL 31 Clock 42 Tx Ckt ID 43 Rx Ckt ID Enter Selection Number Control Mode Ft Panel RS 485 5103 2048000 32 Ref Source Internal 33 Ext Ref Fq 10 000000 IF Input dBm 31 Eb No NO SYNC Uncorrected SER NO SYNC Corrected BER NO SYNC Offset Frq Hz 0 2047 Error Cnt NO SYNC 2047 BER NO SYNC TX SETUP 51 Tx Clock Sel 52 Tx Clock Pol 53 SCT Source 54 Asynchronous 55 Baud 56 Port 57 Tx Terr Intf SCTE Ext Inverted Internal Off 300 RS 485 RS 422 3 7 V SW F04780 Ver 1 3 Intf Pres 5 V Mon 12 V Mon 12 V Mon RX SETUP 71 Buffer msec 72 73 74 75 76 77 Buff Clk Sel Buff Clk Pol Asynchronous RxAsync Baud RxAsync Port Rx Terr Intis V35 422 Async 4 9 etl 2G f 29 Events 39 32 5 Inverted Off 300 RS 485 RS 422 Figure 4 13 Asynchronous Overhead Channel Interface Control Terminal Screen 4 30 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces 1 Main Menu IF Input dBm 31 3 7 V SW F04780 Ver 1 3 2 Control Mode Ft Panel Eb No gt 20 00 Intf Pres G 703 1 1 5 3 Remote Mode RS 485 Uncorrected SER 0 5 5 V Mon 4 9 4 Remote Addr 101 Corrected BER 0 12 12 V Mon 12 5 Offset Frq Hz 0 12 V Mon 11 9 6 Center Buffer 2047 Error Cnt NO SYNC Events 20 Buffer Fi
106. IDR Backward Alarm 4 Bits 4 7 Spare 0 Mask 1 Allow 0 Force Alarm Always ON 1 Force Alarm Always OFF 2 Normal Operation 0 Force Alarm Always ON 1 Force Alarm Always OFF 2 Normal Operation 0 Force Alarm Always ON 1 Force Alarm Always OFF 2 Normal Operation 0 Force Alarm Always ON 1 Force Alarm Always OFF 2 Normal Operation G 703 Daughter Card is Installed 0 G 703 Unbalanced E1 1 G 703 Balanced E1 2 G 703 T1 B8ZS If Synchronous Multiprotocol Daughter Card is installed 0 V 35 1 RS 422 2 RS 232 20 to 10 Signed Binary Value in dB 4 51 User Interfaces lt 30 gt 1 Transmit ESC Audio 2 Volume Drop Mode DropMap Drop Alarm Status Mask Drop Backward Alarm Mask ForceSatBack Drop Edit Map DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 20 to 10 Signed Binary Value in dB 0 Disable 1 11 04 2 T1 ESF 3 PCM 30 4 PCM 30C 5 PCM 31 6 PCM 31C 7 T1 SLC96 Mapping of Satellite Channels to dropped Terrestrial Timeslots Bit 0 Terrestrial Frame Lock Fault all modes Bit 1 Terrestrial Multiframe Lock Fault PCM 30 and PCM 30C only Bit 2 Terrestrial CRC Lock Fault PCM 30C and PCM 31C only Bit 3 Terrestrial Yellow Alarm Received T1 only Bit 4 Terrestrial FAS Alarm Received E1 only Bit 5 Terrestrial MFAS Alarm Received PCM 30 and PCM 30C only Bit 6 Loss of T4errestrial Signaling repo
107. IDR Satellite Modem Bit 4 Receive FPGA Fault Bit 5 Rx LNB Fault LBST Only Bits 6 7 Spares 0 Pass 1 Fail Bit 0 IF Synthesizer Lock Detect Fault Bit 1 Rx Oversample PLL Lock Detect Fault Bit 2 Buffer Clock PLL Lock Detect Fault Bit 3 Viterbi Decoder Lock Fault Bit 4 Sequential Decoder Lock Fault Bit 5 Rx 2047 Test Pattern Lock Fault Bit 6 External Reference PLL Lock Fault Bit 7 Frame Sync Fault 0 Pass 1 Fail Bit 0 Buffer Clock Activity Detect Fault Bit 1 External BNC Activity Detect Fault Bit 2 Rx Satellite Clock Activity Detect Fault Bit 3 External Reference PLL Activity Fault Bits 4 7 Spares 0 Pass 1 Fail Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 2 5 V Alarm Bit 3 2 Temperature Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare Ignore Unsigned Binary Value Unsigned Binary Value Bytes 1 2 Unsigned Binary Value Raw BER Bytes 1 2 Unsigned Binary Value Corrected BER Unsigned Binary Value 2 Decimal Places Implied Unsigned Binary Value in Hz Pos Neg Indicated Below Bytes 1 2 Unsigned Binary Value Test 2047 BER Byte 3 Unsigned Binary Value Exponent Byte 3 Unsigned Binary Value Exponent Byte 3 Unsigned Binary Value Exponent TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Exponent Offset Frequency Sign BER EbNo Status Buffer Percent Full Input Le
108. Indication Received on Terrestrial Input Action In Earth Station AS1 2 IBS Prompt Service Alarm AS1 IBS Prompt Alarm 51 IBS Prompt Alarm 51 IBS Prompt Alarm 51 IBS Prompt Alarm Action to Terrestrial Across Interface H 1 in Bit 3 of NFAS TSO Yellow Alarm 1 in Bit 3 of NFAS TSO Yellow Alarm 1 in Bit 3 of NFAS TSO Yellow Alarm 1 in Bit 3 of NFAS TSO Yellow Alarm 1 in Bit 3 of NFAS TSO Yellow Alarm Action to Satellite Across Interface D AD1 AIS in Relevant TS s ADS 1111 in RelevantTS16 s AD1 AIS in Relevant TS s ADS 1111 in Relevant TS16 s AD1 AIS in Relevant TS s AD2 1 in Bit 3 of Byte 32 Fault Detected From Satellite Across Interface E FA1 Loss of Satellite Signal Input FA2 Loss of Satellite Frame FAS Loss of Satellite Multiframe FA4 BER of 1E 3 or Greater From Satellite Input FA5 Alarm Indication Received From Satellite Input 6 8 AS1 2 IBS Prompt Service Alarm AS1 2 IBS Prompt Service Alarm AS1 2 IBS Prompt Service Alarm AS1 2 IBS Prompt Service Alarm AS2 IBS Service Alarm AH1 3 AIS in TS s 1111 in TS16 AH1 3 AIS in TS s 1111 in TS16 AH1 3 AIS in TS s 1111 in TS16 AH1 3 AIS in TS s 1111 in TS16 1 in
109. Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 4 3 1 Modem Terminal Mode Control The modem can be interactively monitored and controlled in the Terminal mode with a full screen presentation of current settings and status Programming is accomplished by selecting the item to be modified and pressing the terminal key of the option number For example to change the transmit data rate enter 33 at the terminal The modem will respond by presenting the options available and requesting input Two types of input may be requested If the input is multiple choice the desired choice is selected by pressing the Space key When the desired option is displayed press the Enter key to select that option The other possible input type requires a numerical input such as entering a frequency or data rate This type of input is followed by pressing the Enter or carriage return key An input can be aborted at any time by pressing the ESC key Invalid input keys cause an error message to be displayed on the terminal The Terminal Control Mode supports serial baud rates of 300 1200 2400 4800 9600 19200 38400 57600 and 115200 The connection must be set for 8 data bits 1 stop bit and no parity 8 N 1 Three terminal emulations are supported VT100 WYSE 50 and ADDS VP is used for setting the screen when the terminal is used is used for the first time or the non volatile memory gets reset 4 3 2 Modem Setup for
110. It is a 15 Pin Female D Connector Refer to Table 5 15 for connector pinouts Table 5 15 ESC 8K Data Interface 15 Pin Female D Connector J15 Pin Number Signal Direction 1 ESCRXO B Rx Octet B Output 2 ESCRXC B Rx Clock B Output 3 ESCRXD B Rx Data B Output 4 NC No Connection 5 NC No Connection 6 ESCTXD A Tx Data A Input 7 ESCTXC A Tx Clock A Output 8 ESCTXO A Tx Octet A Output 9 ESCRXO A Rx Octet A Output 10 ESCRXC A Rx Clock A Output 11 ESCRXD A Rx Data A Output 12 GND Ground 13 ESCTXD B Tx Data B Input 14 ESCTXC B Tx Clock B Output 15 ESCTXO B Tx Octet B Output 065 Rev 3 3 5 19 Electrical Interfaces 5 6 15 G 703 BAL J16 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem The G 703 Balanced Port J10 are the G 703 balanced data connectors It is a 15 Pin Female D Connector Refer to Table 5 16 for connector pinouts Table 5 16 G 703 BAL 15 Pin Connector J10 Pin Number Signal Description Direction 1 SD A Send Data A Input 2 GND Ground 9 SD B Send Data B Input 7 BAL External Clock A Input 8 BAL External Clock Input 3 RD A Receive Data A Output 4 GND Ground 11 RD B Receive Data B Output 12 DDO A Drop Data Out A Output 5 DDO B Drop Data Out B
111. LAY DEMOD FAULT RELAY MOD FAULT OPEN COLLECTOR OVERRIDE TO INTERNAL REF TX IF SYNTH UNLOCKED u E E TX COMP CLK PLL UNLOCKED TX OUTPUT LEVEL E _ xeu E TX DATA ACTIVITY TX LOSS OF EXTERNAL REF E LS 11111 i Note When EXT EXC is used as a reference for the Mod Clock and activity on the EXT EXC is lost the modem switches Tx clock reference to SCTE if it exists otherwise it switches to SCT Table 6 3 DMD2401 TX Fault Matrix 065 Rev 3 3 6 3 Maintenance DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 6 3 1 Interpreting the Matrices The first vertical column in the Tables represents the various Faults that the modem may identify The top horizontal column indicates the various actions that the modem will undertake These actions may be in the form of a relay a switch or an LED 6 4 DMD2401 Bit Error Rate BER Curves Figures 6 1 through 6 5 represent the BER curves for the DMD2401 Satellite Modem IBS 1x10 1x10 1x102 3 4 Rate 1x10 1x10 BER 1x10 7 8 Rate 1x10 1x107 1 2 Rate 1x10 1x10 1x10 3 4 5 6 7 8 9 10 11 Eb No Figure 6 1 IBS BER Curve 6 4 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Maintenance 1x10 1 10 1 10 1 10 9 4x10 BER 1x10 1x10 9 1x107 1x10 1x10 1 10 3 4 Rate IDR 7 8 Rate 1 2 Rate 5 6 7 8 9 10 11
112. M065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces Bit 7 CRC Calculation Fault lt gt Insert Back Bit 0 Backward Alarm Received from Satellite Alarm Bits 2 7 Spares 1 AGC Voltage In Hex decimal point implied Opcode lt 2406h gt Query a Demodulator s Latched Alarms Query response lt gt Latched Alarm 1 Bit O Receive Processor Fault Bit 1 Signal Lock Fault Bit 2 Receive Satellite AIS Fault Bit 3 Rx AGC Input Level Fault Bit 4 Reed Solomon Sync Fault Bit 5 Reed Solomon Excessive Errors Fault Bit 5 Reed Solomon Uncorrectable Word Fault Bit 7 Receive Forced Alarm 0 Pass 1 Fail lt 1 gt Latched Alarm 2 Bit 0 Buffer Underflow Bit 1 Buffer Overflow Bit 2 Buffer Under 10 Bit 3 Buffer Over 90 Bit 4 Receive FPGA fault Bit 5 Rx LNB Fault LBST Only Bits 6 7 Spares 0 Pass 1 Fail lt gt Latched Alarm Bit 0 IF Synthesizer Lock Detect Fault Bit 1 Rx Oversample PLL Lock Detect Fault Bit 2 Buffer Clock PLL Lock Detect Fault Bit 3 Viterbi Decoder Lock Fault Bit 4 Sequential Decoder Lock Fault Bit 5 Rx 2047 Test Pattern Lock Fault Bit 5 External Reference PLL Lock Fault Bit 7 Frame Sync Multiframe Sync Fault 0 Pass 1 Fail lt 1 gt Latched Alarm 4 Bit 0 Buffer Clock Activity Detect Fault Bit 1 External BNC Activity Detect Fault Bit 2 Rx Satellite Clock Activity Detect F
113. MD2401 DMD2401L DMD2401 IBS Encoder Opcode lt 2609 gt lt 1 gt Carrier Control Opcode lt 260Ah gt Comman lt 1 gt Carrier Selection Opcode lt 260Bh gt Comman lt 1 gt Clock Control Opcode lt 260Ch gt Comman lt 1 gt Clock Polarity Opcode lt 260Dh gt Comman lt 1 gt SCT Source Opcode lt 260Eh gt lt gt IDR Satellite Modem User Interfaces d Modulator s Carrier Control 0 Off 1 On 2 Auto 3 4 RTS d a Modulator s Carrier Selection Normal 1 CW 2 Dual 3 Offset d Modulator s Clock Control 0 Internal SCT 1 External SCTE d a Modulator s Clock Polarity Normal 1 Inverted 2 Auto d a Modulator s SCT Source 0 Internal 1 SCR 2 Ext BNC d Modulator s Drop Mode 0 Disable 1 11 04 2 T1 ESF 3 PCM 30 4 PCM 30C 5 PCM 31 6 PCM 31C 7 T1 SLC96 Opcode lt 260Fh gt Command a Modulator s Output Level 2 Transmit Power Signed Binary Value 50 to 300 5 0 to 30 0 dBm Implied Level 065 Rev 3 3 Decimal Point 4 65 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Opcode lt 2610h gt Command a Modulator s Reed Solomon Encoder Characteristics lt 1 gt Reed Solomon 0 Disable 1 Enable lt gt Reed Solomon N Unsigned Binary lt gt Reed Solomon K Unsigned
114. MD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces The following response error codes are specific to the DMD2401 Response Opcode Description Opcode MPARM_FREQUENCY_ERROR 0x0401 MPARM_DATARATE_ERROR 0x0404 MPARM_EXCCLOCK_ERROR 0x0405 MPARM_EXTREFERENCE_ERROR 0x0406 MPARM_FREQREFSOURCE_ERROR 0x0407 MPARM_MODULATIONTYPE_ERROR 0x0408 MPARM_CONVENCODER_ERROR 0x0409 MPARM_REEDSOLOMON_ERROR 0x040A MPARM_SCRAMBLERCONTROL_ERROR 0x040B MPARM_SCRAMBLERTYPE_ERROR 0x040C MPARM_DIFFERENTIALENCODER_ERROR 0x040F MPARM_XMITPOWERLEVEL_ERROR 0x0410 MPARM_CARRIERCONTROL_ERROR 0x041 1 MPARM_CARRIERSELECTION_ERROR 0x0412 MPARM_SPECTRUM_ERROR 0x0413 MPARM_MODE_ERROR 0x0414 MPARM_TERRLOOPBACK_ERROR 0x0415 MPARM_BASELOOPBACK_ERROR 0x0416 MPARM_CLOCKCONTROL_ERROR 0x0417 MPARM_CLOCKPOLARITY_ERROR 0x0418 MPARM_FRAMING_ERROR 0x0419 MPARM_DROPMODE_ERROR 0 041 MPARM_SCTSOURCE_ERROR 0x041B MPARM_DROPMAP_ERROR 0x041D MPARM_MODE_ERROR 0x0422 MPARM_CIRCUITID_ERROR 0x0423 MPARM_INTERFACETYPE_ERROR 0x0429 MPARM_NOTIMPLEMENTED_ERROR 0x042D MPARM_SUMMARYFAULT_ERROR 0x0430 MPARM_DATAINVERT_ERROR 0x0431 MPARM ESCSOURCE ERROR 0x0432 ASYNCTERRINTERFACETYPE ERROR 0x0433 MPARM CTSCONTROL ERROR 0x0434 MPARM CARRIERDELAY ERROR 0x0443 DPARM MODE ERROR 0x0600 065 Rev 3 3 4 39 User Interfaces DMD2401 DMD2401L DMD2401 IB
115. O 3NO IDR ESC Backward Alarm Output 3 Output Normally Open 13 BAL External Clock Input Input 14 GND Ground 15 ESCAUDTX 1 IDR ESC Audio Input Channel 1A Input 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces 16 ESCAUDTX 2A IDR ESC Audio Input Channel 2A Input 17 ESCAUD RX 1A IDR ESC Audio Output Channel 1A Output 18 ESCAUD RX2A IDR ESC Audio Output Channel 2A Output 19 ESCBWI 3 IDR ESC Backward Alarm Input 3 Input 20 ES TXD A BWI 1 IBS ES Transmit Data A Input IDR ESC Backward Alarm Input 1 21 MOD FLT Mod Fault Open Collector Output Output Open Collector 22 ES RXD A IBS ES Receive Data Output A Output 23 ES DSR IBS ES Data Set Ready RS 232 Only Output 24 ESCTXC A IDR ESC Transmit 8 Kbps Output Clock Output 25 ESCTXD A IDR ESC Transmit 8 Kbps Output Data Input 26 ESCRXC A IDR ESC Receive 8 Kbps Output Clock Output 27 ESCRXD A IDR ESC Receive 8 Kbps Output Data Output 28 ESCBWO 4NC IDR ESC Backward Alarm Output 4 Output Normally Closed 29 TXO A IBS Transmit Octet Input A Input 30 SYNC DM A Synchronous Data Mode A Output 31 SYNC CS A Synchronous Data Clear to Send A Output 32 RXO A IBS Receive Octet Output A Output 33 SYNC RS A Synchronous Data Request to Send A Input 34 SYNC RR A Synchronous Data Receiver Ready A Output 35 G703B SD
116. Position Left Right Unsigned Changes Increments Decrement Moves Moves N A N A Hexadecimal Digit Digit Value s Digit Cursor 1 Cursor 1 Value Position Position Left Right Enumerated N A Previous Next Value N A N A N A N A Value in in List List Date Time Changes N A N A Moves Moves N A N A Digit Cursor 1 Cursor 1 Position Position Left Right IP Address Changes Increments Decrement Moves Moves N A N A Digit Digit Value s Digit Cursor 1 Cursor 1 Value Position Position Left Right Text Strings Changes Increments Decrement Moves Moves Clears to Clears to Character Character s Character Cursor 1 Cursor 1 Left of Right of Value Value Position Position Cursor Cursor Left Right Inclusive Inclusive 065 Rev 3 3 Figure 4 2 Entering New Parameters 4 3 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 4 2 Front Panel Control Screen Menus The DMD2401 Front Panel Control Screens are broken down into sections under several Main Menus 4 2 1 Main Menus Modulator Demodulator Interface Monitor Alarms System Test 4 2 2 Modulator Menu Options and Parameters Mod Mode IBS D amp I Closed Net Used with IDR or IBS Interface Only Sets a number of parameters within the modem to meet a set specification The purpose is to eliminate keystrokes and potential compatibility problems Additionally data rates not covered by the given mode of operation will not be allowed
117. Present Bit 1 Tx Sequential Encoder Present Bit 2 Tx RS Encoder Present Bit 3 Tx Turbo Product Encoder Present Bit 4 Tx 8PSK Encoder Present Bit 5 Turbo Codec Present Bits 6 amp 7 Spare Bit 0 Rx Viterbi Decoder Present Bit 1 Rx Sequential Decoder Present Bit 2 Rx RS Decoder Present Bit 3 Rx Turbo Product Decoder Present Bit 4 Rx 8PSK Decoder Present Bit 5 Turbo Codec Present Bits 6 amp 7 Spare 0 RS 422 RS 449 1 V35 422 Async 2 Univ Async This Interface is Obsolete 3 V 35 422 232 4 2 G 703 1 1 5 5 IDR V 35 422 6 IBS V 35 422 7 IDR G 703 8 IBS G 703 9 Universal Interface 10 Universal Interface w Async 11 255 Undefined Bit 0 AUPC Bit 1 D amp l Bit 2 Sequential Daughter Card installed Bit 3 Turbo Daughter Card installed Bits 4 7 Spares d a Modem s Control Mode Front Panel 1 Terminal 2 Computer id a Module s External Reference Source 0 Internal 1 External d a Module s External Clock Unsigned Binary Value in Hz TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces Opcode lt 261Bh gt Command a Module s External Reference Frequency lt 4 gt External Ref Unsigned Binary Value in Hz Freq 065 Rev 3 3 4 93 User Interfaces Opcode lt 2C00h gt lt 1 gt Opcode lt 2 01 gt lt 1 gt lt 1 gt Opcode lt 2C03h gt Opco
118. RX SETUP 31 Clock 10000000 51 6703 Intf U E1 71 Rx 6703 Intf U E1 32 Ref Source Internal 72 Buffer msec 32 33 Ext Ref Fq 10 000000 73 BufClk Sel RX SAT 55 Tx Framing None 75 Rx Framing None 42 Tx Ckt ID 43 Rx Ckt ID Enter Selection Number Figure 4 11 Closed Net G 703 Interface Control Terminal Screen 065 Rev 3 3 4 29 User Interfaces Menu Remote Mode DWN DP 6 Center Buffer Buffer Fill 50 GENERAL 31 EXC Clock 42 Tx Ckt ID 43 Rx Ckt ID Enter Selection Number Control Mode Terminal RS 485 Remote Addr 32 10000000 32 Ref Source Internal 33 Ext Ref Fq 10 000000 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem IF Input dBm 25 Eb No gt 20 00 Uncorrected SER 0 E 5 Corrected BER 0 12 Offset Frq Hz 11 2047 Error Cnt NO SYNC 2047 BER NO SYNC TX SETUP 51 Tx Clock Sel 52 Tx Clock Pol 53 SCT Source 54 Tx Terr Intf EXE Auto Internal RS 422 4 2 V RX 71 72 73 74 75 SW F04780 Ver 2 INCE DV 5 V Mon 4 12 V Mon 1 12 V Mon 1 Events 429 SETUP Buffer byte Buffer msec Buff Clk Sel Buff Clk Pol Rx Terr Intf 35 422 232 29 2 2 2 0 8192 232 5 Normal RS 422 Figure 4 12 V 35 RS4 22RS 232 Interface Control Terminal Screen Main Menu Remote Mode Remote Addr 6 Center Buffer Buffer 1115 0 ASYNCHRONOUS OVER
119. Receive Octet A Output 34 RX 0 B Receive Octet B Output 17 TT A Terminal Timing A Input 35 TT B Terminal Timing B Input 1 19 20 37 GND Signal Ground Note The DMD2401 Satellite Modem constantly asserts the DM DSR Signal DM and DSR are actually the same signal The modem is always in the condition of being able to accept data DTR Input to the modem is not necessary and is ignored The DM DSR Output of the modem is located on Pins 11 and 29 as shown above 5 28 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces Table 5 26 V 35 Data Cable Number CA 4841 Pinouts Pin Signal Description Direction GND Signal Ground 2 RTS Request to Send A Input CTS Clear to Send Output DSR Data Mode A Output RR Receive Ready A Output SD B Send Data B Output RD A Recieve Data A Input RD B Receive Data B Output TT A Terminal Timing Output TT B Terminal Timing B Input RT A Receive Timing A Output RT B Receive Timing B Input ST A Send ae A Output AA ST B Send Timing B Output 5 8 9 SD J9 The Send Data Port J9 is the unbalanced Send Data BNC Connector SD A Send Data A Input 5 8 10 DDO 910 The Data Drop Out Port J10 is the unbalanced Data Drop Out BNC Connector 5 8 11 IDI J11 The Insert Data In Port J11 is the unbal
120. S IDR Satellite Modem DPARM_FREQUENCY_ERROR 0x0601 DPARM_DATARATE_ERROR 0x0603 DPARM_SWEEPBOUNDARY_ERROR 0x0604 DPARM_LEVELLIMIT_ERROR 0x0605 DPARM_DEMODULATIONTYPE_ERROR 0x0608 DPARM_CONVDECODER_ERROR 0x0609 DPARM_REEDSOLOMON_ERROR 0 060 DPARM_DIFFERENTIALDECODER_ERROR 0x060B DPARM_DESCRAMBLERCONTROL_ERROR 0 060 DPARM_DESCRAMBLERTYPE_ERROR 0x060D DPARM_SPECTRUM_ERROR 0 060 DPARM_BUFFERCLOCK_ERROR 0x0610 DPARM_BUFFERCLOCKPOL_ERROR 0x061 1 DPARM INSERTMODE ERROR 0x0612 DPARM FRAMING ERROR 0x0615 DPARM OPERATINGMODE ERROR 0x0616 DPARM BERMEASUREPERIOD ERROR 0x0619 DPARM CIRCUITID ERROR 0x061A DPARM TERRLOOPBACK ERROR 0x061B DPARM BASELOOPBACK ERROR 0x061C DPARM IFLOOPBACK ERROR 0x061D DPARM INTERFACETYPE ERROR 0x061E DPARM NOTIMPLEMENTED ERROR 0x0622 DPARM DATAINVERT ERROR 0x0623 DPARM SUMMARYFAULT ERROR 0x0624 DPARM EXTERNALEXCSOURCE ERROR 0x0625 DPARM BUFFERSIZEMSEC ERROR 0x0629 DPARM BUFFERSIZEBYTES ERROR 0x062A DPARM ASYNCINTERFACETYPE ERROR 0x0630 DPARM BUFFERSIZEMSECBYTES ERROR 0x0631 MDPARM TIME ERROR 0x0AO01 MDPARM DATE ERROR 0x0A02 4 4 5 Collision Avoidance When properly implemented the physical and logical devices and ID addressing scheme of the COMMSPEC normally precludes message packet contention on the control bus The importance of designating unique IDs for each device during station configuration cannot be over
121. Terminal Mode Terminal mode communications and protocol is set from the front panel control by setting the Control Mode parameter to Terminal and then setting the Modem Port Term Baud and Emulation parameters as desired Then a terminal is connected to Connector J5 on the Back Panel All operating software for the terminal mode is contained within the DMD2401 modem internal control software A break signal on the communications line pressing ESC on the terminal or Power On of the modem will initiate full screen terminal mode printing and redraw the full screen The terminal mode displays the present status of all user parameters controlled and read by the processor and offers a menu allowing change to any controlled parameter The Terminal Mode uses eight Screens each of which have the basic contents of the three modem monitor and control areas as set in the front panel matrix columns This screen is used for setting the parameters of the Modulator Demodulator Event Alarm Latched Alarm Drop Controls Insert Controls and Interface Areas Representations of the terminal screens are shown in Figures 4 3 through 4 22 These screens may differ from the exact screens displayed due to changes in software and the presence of options in the modem hardware For instance the presence of a Drop and Insert will result in added options available on the screens or additional screens to be available Note Values contained within the
122. There are also additional Backward Alarms available in Drop amp Insert Mode Alarms Modem Alarms Backward Alarms Prompt This is the prompt maintenance alarm output by the modem Service This is the deferred service alarm output by the modem TerBack Indicates whether or not a terrestrial backward alarm is being received SatBack Indicates whether or not a satellite backward alarm is being received which would be caused by the demod losing lock at the other end of the link Force TerBck Allows the operator to force the terrestrial backward alarm output to On Off or Normal for testing purposes Force SatBck Allows the operator to force the satellite backward alarm output to On Off or Normal for testing purposes 065 Rev 3 3 3 11 Operation DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 3 11 Drop and Insert Mapping The following displays under Interface D amp I Setup both Tx and Rx are editing displays only SATCh TS Enter to Edit Any changes made in these displays are made on the screen but are not entered into the modem Once these menus are configured the Mapping Menu must be used to actually enter the settings into the modem Example For a modem w Drop amp Insert enabled at a data rate of 256 with timeslots assigned 1 1 2 2 etc At a data rate of 256 the modem will allow 4 channels to assign timeslots to Under the Tx Menu assign the timeslots that are to be used to the 4 channels
123. Volts Pass TxCmpCk Pass BuffPLL Pass Buf gt 90 Pass IntFPGA Pass TxSynth Pass RxLevel Pass VitLock Pass Battery Pass TXFPGA Pass RXFPGA Pass SeqLock Pass RAM ROM Pass MOD MINOR FrmSync Pass Buf Clk Pass C uProc Pass TerrClk Pass FrSync Pass RXBNCCk Pass ExRefLck Pass Int Clk Pass RxSatCk Pass ExRefAct Pass TxSatCk Pass Sat AIS Pass D Card Pass TxBNCCk Pass RS Lock Pass Tx Data Fail RS ntfi Pass TerrAIS Pass RS U W Pass RS FIFO Pass 94 Clr Latched Alarms Enter Selection Number Figure 4 7 Latched Alarm Status Terminal Screen 065 Rev 3 3 4 27 User Interfaces 1 Menu 2 Control Mode Terminal 3 Remote Mode RS 485 4 Remote Addr 32 6 Center Buffer Buffer Fill 50 mee eMe IDR G 703 INTERFACE CONTROLS GENERAL EXC Clock 10000000 Ref Source Internal Ext Ref Fq 10 000000 Normal Normal Normal Normal ForceTxBackl ForceTxBack2 ForceTxBack3 ForceTxBack4 olx kt ID Rx Cet ID Enter Selection Number DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem IF Input dBm 61 9 Eb No NO SYNC Uncorrected SER NO SYNC Corrected BER NO SYNC Offset Frq Hz 24999 2047 Error Cnt NO SYNC 2047 BER NO SYNC TX SETUP 51 G703 Intf B El 55 Tx Framing 96kBit IDR 56 IDR OH Type Voice 57 ESC Ch 1 0 58 ESC Ch 2 0 ALARM Mask 60 1 Yes 61 TxBack2 F Yes 62 TxBack3 F Yes 63 TxBack4 F Yes v SW F0478
124. YTE COUNT gt 02h 0000001 0b 0000001 0b lt SOURCEID gt FOh 11110000b 11110010b lt DESTINATION ID gt 2Ah 00101010b 000111000 lt FSN gt 09h 00001001b 00100101b lt OPCODE gt 03h 000000110 00101000b lt DATA gt Byte 1 DFh 110111110 00000111b lt DATA gt Byte 2 FEh 11111110b 00000101b Thus the checksum is 00000101b which is 05h or 5 decimal Alternative methods of calculating the checksum for the same message frame are 0002h FOh 2Ah 09h 0003h DFh FEh 305h Since the only concern is the modulo 256 modulo 1 00h equivalent values that can be represented by a single 8 bit byte the checksum is 05 For a decimal checksum calculation the equivalent values for each information field are 2 240 42 9 3 223 254 773 773 256 3 with a remainder of 5 This remainder is the checksum for the frame 5 decimal 05h 0101b lt CHECKSUM gt 4 4 3 Frame Description and Bus Handshaking In a Monitor and Control environment every message frame on a control bus port executes as a packet in a loop beginning with a wait for SYN character mode The remaining message format header information is then loaded either by the M amp C computer or by a subordinate piece of equipment such as the DMD2401 requesting access to the bus Data is processed in accordance with the OPCODE and the checksum for the frame is calculated If the anticipated checksum does not match then
125. Yes 81 RxBack2 F Yes A2 Tx ID x 62 TxBack3 F Yes 82 RxBack3 F Yes 43 Rx Ckt ID 63 TxBack4 F Yes 83 RxBack4 F Yes Enter Selection Number Figure 4 15 IDR Universal G 703 Interface Control Terminal Screen 065 Rev 3 3 4 31 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 1 Main Menu IF Input dBm 61 1 0 V SW F04780 Ver 2 2 Control Mode Terminal Eb No NO SYNC Intf Pres Universal 3 Remote Mode RS 485 Uncorrected SER NO SYNC 5 V Mon 44 8 4 Remote Addr 32 Corrected BER NO SYNC 12 V Mon 12 5 Offset Frq Hz 24992 12 V Mon 12 1 6 Center Buffer 2047 Error Cnt NO SYNC Events 29 Buffer Fill 50 2047 BER NO SYNC UNIVERSAL G 703 SYNCHRONOUS INTERFACE CONTROLS GENERAL TX SETUP RX SETUP 31 EXC Clock 10000000 51 Tx Univ Intf U El 71 Rx Univ Intf U El 32 Ref Source Internal 72 Buffer msec 32 33 Ext Ref Fq 10 000000 73 BufClk Sel RX SAT 55 Tx Framing 1 15 IBS 75 Rx Framing 1 15 IBS 56 TxAsync Port RS 485 76 RxAsync Port RS 485 38 ForceTxBack Normal ALARM Mask 80 Prompt P No 81 Service P No 42 1 ID i 82 BER No 43 Rx ID ALARM Mask 83 RxBack P No 64 TxBack F No Enter Selection Number Figure 4 16 IBS Universal G 703 Interface Control Terminal Screen 1 Main Menu IF Input dBm 40 2 9 V SW F04780 Ver 2 2 Control Mode Ft Panel Eb No gt 20 00 Intf Pr
126. ace card is installed If not ignore 0 V 35 1 RS 422 2 RS 232 Note The following byte applies only if a symmetric G 703 interface card is installed If not ignore TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt G 703 Interface Type BPSK Symbol Pairing Receive Mode T1 E1 Frame Source Receive IDR Overhead Mode Receive IDR Backward Alarms Mask Interface Type f G 703 Daughter Card Installed User Interfaces 0 G703T1AMI 1 G703T1B8ZS 2 G703BE1 3 G703UE1 Note The following byte applies to all DMD2401 modems regardless of interface type 0 Normal 1 Swapped Note The following byte applies only if an IDR OR IBS interface card is installed If not ignore 0 Closed Net Mode 1 IDR Mode 2 IBS Mode Note The following byte applies only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode If not ignore 0 Internal 1 External Note The following byte applies only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode If not ignore 0 Voice 1 64 K Data Note The following byte applies only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode If not ignore Bit 0 IDR Backward Alarm 1 Bit 1 IDR Backward Alarm 2 Bit 2 IDR Backward Alarm 3 Bit 3 IDR Backward Alarm 4
127. anced Insert Data In BNC Connector 065 Rev 3 3 5 29 Electrical Interfaces 5 8 12 RD J12 The Receive Data Port J12 is the unbalanced Receive Data BNC connector 5 8 13 ESC ALARMS J14 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem The ESC Alarm Interface Port J14 is the ESC Alarm Connector It is a 25 Pin Female D Connector Refer to Table 5 27 for connector pinouts Table 5 27 ESC Alarm Interface 25 Pin Female 414 Pin Number Signal GND Description Ground Direction ESCBWO 1NO Backward Alarm Out 1NO Output NC No Connection ESCBWO 2NO Backward Alarm Out 2 NO Output NC No Connection ESCBWO 3NO Backward Alarm Out 3 NO Output GND Ground ESCBWO 4NO Backward Alarm Out 4 NO Output o oINIO 01 No Connection ESCBWI 2 Backward Alarm In 2 Input ESCBWI 4 Backward Alarm In 4 Input NC No Connection NC No Connection ESCBWO 1C Backward Alarm Out 1 C Output ESCBWO 1NC Backward Alarm Out 1 NC Output ESCBWO 2C Backward Alarm Out 2 C Output ESCBWO 2NC Backward Alarm Out 2 NC Output ESCBWO 3C Backward Alarm Out 3 C Output ESCBWO 3NC Backward Alarm Out 3 NC Output ESCBWO 4C Backward Alarm Out 4 C Output ESCBWO 4NC Backward Alarm Out 4 NC Output ESCBWI 1
128. ata Rate 2 048 000 Kbps Forward Error Correction 1 2 Rate Viterbi Frequency 70 000000 MHz 950 000000 MHz L Band Option To lock up the modem turn the carrier ON enter IF Loopback Enable or connect a loopback cable from J1 to J4 on the rear panel of the modem 3 4 DMD2401 Automatic Uplink Power Control AUPC Operation The DMD2401 modem has an optional built in provision for Automatic Uplink Power Control AUPC AUPC attempts to maintain a constant E N at the receive end of an SCPC link This is especially useful when operating over a satellite at Ku Band frequencies in locations with high rainfall periods Note An Asynchronous or IBS Interface is required for AUPC Also IBS Async Framing Mode MUST be selected to provide a channel for AUPC operation The IBS Async Framer Data Mode provides a service channel between the two sites of a link permitting the modem processors to send messages and get responses over this channel AUPC can be set to operate on either or both directions of a link but always requires a bi directional channel Therefore both the Modulator and Demodulator interface mode must be set to IBS Async for the AUPC menus to be visible and for the AUPC function to operate properly The AUPC functions and their descriptions are shown below The AUPC menus are located under the Modulator Menu as shown in Section 4 065 Rev 3 3 3 3 Operation DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Funct
129. ates a fault condition that will result in lost communications Table 4 2 LED Color Function Modem LED Indicators Power Green Indicates that the unit is turned on Fault Red Indicates a hardware fault for the unit Event Yellow Indicates that a condition or event has occurred that the modem has stored in memory The events may be viewed from the Front Panel or in the Terminal Mode Remote Green Indicates that the unit is set to respond to the remote control input Modulator LED Indicators Transmit On Green Indicates that the Transmit Output is currently active Major Alarm Red Indicates that the Transmit Direction has failed losing traffic Minor Alarm Yellow Indicates that a warning condition exists Test Mode Yellow Indicates that the modulator is involved in a current Test Mode activity Demodulator LED Indicators Signal Lock Green Indicates that the receiver locked to an incoming signal including FEC Sync Major Alarm Red Indicates that the Receive Direction has failed losing traffic Minor Alarm Yellow Indicates that a Receive Warning Condition exists Test Mode Yellow Indicates that the receiver is involved in a current Test Mode activity 4 1 3 Front Panel Keypad The front panel keypad consists of two areas a 10 key numeric entry with 2 additional keys for the Enter and Clear function The second area is a
130. ates on TX Sat Clock activity Pass Fail No Yes Indicates no Tx Data activity Pass Fail No Yes Indicates that AIS has been detected in the Terrestrial Data Stream 065 Rev 3 3 User Interfaces RS FIFO Mask Tx Cal Mask Minor Rx menu BufUFlw Mask BufOFlw Mask Buf lt 10 Mask Buf gt 90 Mask VitLock Mask SeqLock Mask Rx Activity menu Buf Mask Ext BNC Mask Rx Sat Mask ExtRef Mask SatAIS Mask Rx RS Faults menu DecLock Mask Dintlvr Mask DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Pass Fail No Yes Indicates the status of the Tx Reed Solomon FIFO Pass Fail No Yes Indicates that the modem has been calibrated for the output power level Pass Fail No Yes Indicates that a Doppler Buffer underflow has occurred Pass Fail No Yes Indicates that a Doppler Buffer overflow has occurred Pass Fail No Yes Indicates that the Doppler Buffer has gone below 10 full and may underflow Pass Fail No Yes Indicates that the Doppler Buffer has gone above 90 full and may overflow Pass Fail No Yes Indicates that the Viterbi Decoder is not locked Pass Fail No Yes Indicates that the Sequential Decoder is not locked Pass Fail No Yes Indicates that the selected buffer clock source is not active Pass Fail No Yes Indicates no activity on the External BNC Clock Port Pass Fail No Yes Indicates that the Rx Sat B
131. ature is measured at the output amplifier and does not represent the overall internal temperature Ignore These Bytes Note The following three bytes apply only if an asynchronous interface card IDR or IBS interface card is installed and the AUPC option is installed and the AUPC is enabled If not ignore this byte 4 53 User Interfaces lt 1 gt lt 2 gt lt 1 gt Remote AUPC Status Remote AUPC Eb No Daughter Card Fault Transmit IDR Backward Alarms Control Mode Drop Alarm Status Drop Backward Alarm Status DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Bit AUPC Communication Error Bits 1 2 Eb No Status 0 Eb No is Invalid 1 Eb No is Valid 2 Eb No is Smaller Than Indicated Value 3 Eb No is Larger Than Indicated Value Unsigned Binary Value Decimal Point Implied Note The following byte applies only if an asynchronous interface card IDR or IBS interface card is installed and the AUPC option is installed and the AUPC is enabled If not ignore this byte 0 Daughter Card OK 1 Daughter Card Faulted The following byte applies only if an IDR or IBS interface card is installed and the modem is in IDR mode If not ignore this byte Bit 0 Backward Alarm 1 Bit 1 Backward Alarm 2 Bit 2 Backward Alarm 3 Bit 3 Backward Alarm 4 Bits 4 7 Spare 0 Not Transmitted 1 Transmitted 0 Front Panel 1 Terminal 2 Computer Bit 0 Terrestrial
132. ault Bit 3 External Reference PLL Activity Fault Bits 4 7 Spares 0 Pass 1 Fail lt 1 gt Latched Comm Bit0 12 V Alarm Alarm 1 Bit 1 12 V Alarm Bit 2 5 V Alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail lt 1 gt Latched Alarm 5 Bit 0 IBS IDR Satellite Multiframe Sync Loss Bit 0 IBS IDR Satellite Frame Sync Loss 065 Rev 3 3 4 79 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Bit 2 Spare Bit 3 IBS BER Alarm Bit 3 IBS Prompt Alarm Bit 5 IBS Service Alarm Bits 6 7 Spares 0 Pass 1 Fail Opcode lt 2409h gt Query a Demodulator s Current Alarms Query response lt 1 gt 1 Bit 0 Receive Processor Fault Bit 1 Signal Lock Fault Bit 2 Receive Satellite AIS Fault Bit 3 Rx AGC Input Level Fault Bit 4 Reed Solomon Sync Fault Bit 5 Reed Solomon Excessive Errors Fault Bit 5 Reed Solomon Uncorrectable Word Fault Bit 7 Receive Forced Alarm 0 Pass 1 Fail lt 1 gt 2 Bit 0 Buffer Underflow Bit 1 Buffer Overflow Bit 2 Buffer Under 1096 Bit 3 Buffer Over 9096 Bit 4 Receive FPGA Fault Bit 5 Rx LNB Fault LBST Only Bits 6 7 Spares 0 Pass 1 Fail lt gt 3 Bit 0 IF Synthesizer Lock Detect Fault Bit 1 Rx Oversample PLL Lock Detect Fault Bit 2 Buffer Cloc
133. bNo is Greater Than Indicated Value Bits 4 7 Reserved Unsigned Binary Value Representing Buffer Full 0 100 in 196 steps Unsigned Binary Value in 1 dB Steps Negative Sign Implied Signed Binary 0 Equal to 1 Greater Than 1 Less Than Value in 1 dB Steps Negative Sign Implied Bit 0 IBS IDR Satellite Multiframe Sync Loss Bit 1 IBS IDR Satellite Frame Sync Loss Bit 2 Spare Bit 3 IBS BER Alarm Bit 3 IBS Prompt Alarm Bit 5 IBS Service Alarm Bits 6 7 Spares 0 Pass 1 Fail Bit 0 2 IBS Backward Alarm or IDR Backward Alarm 1 Bit 1 2 IDR Backward Alarm 2 Bit 2 IDR Backward Alarm 3 Bit 3 IDR Backward Alarm 4 Bits 4 7 Spares 0 Pass 1 Fail Bit 0 IBS IDR Satellite Multiframe Sync Loss Bit 1 IBS IDR Satellite Frame Sync Loss Bit 2 Spare Bit 3 IBS BER Alarm Bit 4 IBS Prompt Alarm Bit 5 IBS Service Alarm Bit 6 7 Spares 0 Pass 1 Fail 0 Front Panel 1 Terminal 2 Computer RLLP Bit 0 IBS Satellite Multiframe Loss Bit 1 IBS Satellite Frame Loss Bit 2 Spare Bit IBS Alarm if BER lt 103 Bit 4 IBS Prompt Alarm Bit 5 IBS Service Alarm Bits 6 7 Spares Bit 0 Frame Lock Fault Bit 1 Multiframe Lock Fault Bit 2 CRC Lock Fault Valid only in T1 ESF and E1 CRC enabled Bit 3 T1 Yellow Alarm Received Bit 4 E1 FAS Alarm Received Bit 5 E1 MFAS Alarm Received Bit 6 E1 CRC Alarm Received 4 78 T
134. backshells are required in order to meet EMC directives Cables with insulation flammability ratings of 94 VO or better are required in order to meet low voltage directives The following interface connections should be available at the mounting location as a minimum 1 Prime AC Power 2 750 Transmit IF Cable with BNC Male Connector 3 An RS 449 Data Interface Cable with a 37 Pin Male D Sub Connector 2 4 Modulator Checkout The following descriptions assume that the DMD2401 is installed in a suitable location with prime AC power and supporting equipment available 2 4 1 Initial Power Up A CAUTION Before initial powerup of the DMD2401 it is a good idea to disconnect the transmit output from the operating ground station equipment This is especially true if the current modulator configuration settings are unknown where incorrect settings could disrupt the existing communications traffic New units from the factory are normally shipped in a default configuration which includes setting the transmit carrier off Turn the unit ON by placing the rear panel switch above the power entry connector to the ON position Upon initial and subsequent power ups the DMD2401 microprocessor will test itself and several of its components before beginning its main Monitor Control program These power up diagnostics show no results if successful If a failure is detected the Fault LED is illuminated The initial field checkout of t
135. be defined 1 Byte DESTINATION ID The Destination Identifier serves as a pointer to the multi drop destination device that indicates where the message is to be sent 1 Byte FRAME SEQUENCE NUMBER gt The FSN is a tag with a value from 0 through 255 that is sent with each message It assures sequential information framing and correct equipment acknowledgment and data transfers 1 Byte OPCODE The Operation Code field contains a number that identifies the message type associated with the data that follows it Equipment under MCS control recognizes this code via firmware identification and subsequently steers the DATA accordingly to perform a specific function or series of functions Acknowledgment and error codes are returned in this field two bytes lt DATA gt The Data field contains the binary data bytes associated with the lt OPCODE gt The number of data bytes in this field is indicated by the BYTE COUNT gt value lt CHECKSUMs The checksum is the modulo 256 sum of all preceding message bytes excluding the lt SYN gt character 1 Byte The checksum determines the presence or absence of errors within the message In a message block with the following parameters the checksurn is computed as shown in Table 4 4 below 4 36 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces Table 4 4 Checksum Calculation Example Byte Field Data Content Running Checksum lt B
136. bles or disables the Reed Solomon Decoder Any valid n k values can be entered refer to Appendix A Displays the currently used n and k Reed Solomon Codes In Closed Net Mode custom RS Codes may be selected 4 8 Displays the currently used Reed Solomon Interleaver Depth In Closed Net Mode a depth of 4 or 8 may be selected 4 2 4 Interface Menu Options and Parameters General menu EXC Clk Freq Freq Ref Src Ext Ref Freq Intf Type Tx Setup menu Tx Ckt ID Tx Clock Tx Clk Polarity SCT Source Tx Terr Intf 065 Rev 3 3 11 0 1 544 2 0 2 048 2 5 5 0 9 0 10 0 Displays the external clock frequency in MHz Internal External Allows the user to select between an internal and external frequency source 1 10 MHz 1 MHz steps Allows the user to enter the external reference frequency Displays the optional interface type installed Allows the user entry of a Tx Circuit Identifier Circuits can be given up to an 11 character alphanumeric identity such as LINK1 SCTE Ext SCT Int Selects the clock source Normal Auto Inverted Selects the Tx Clock Polarity Internal Ext BNC SCR Selects the Tx SCT Source RS 422 V 35 RS 232 Allows the user to select the Transmit Interface Type Not available when G 703 Interface Type is installed 4 9 User Interfaces TxAnsync Port Tx G703 Intf Tx Univ Intt Tx D amp I menu Drop Mode
137. ce Control Terminal Screen Menu Control Mode Terminal Remote Mode RS 485 Remote Addr 32 6 Center Buffer Buffer 1115 SS tp SS UNIVERSAL G 703 SYNCHRONOUS GENERAL 31 EXC Clock 10000000 32 Ref Source Internal 33 Ext Ref Fq 10 000000 38 ForceTxBack Normal 42 Tx Ckt ID 43 Rx Ckt ID Enter Selection Number IF Input dBm 40 2 9 V Eb No 29 26 Uncorrected SER 0 E 5 Corrected BER 0 E 12 Offset Hz 4 2047 Error Cnt NO SYNC 2047 BER NO SYNC INTERFACE TX SETUP RX 51 Tx Terr Intf RS 422 71 52 Tx Clock Sel SCTE Ext 72 53 Tx Clock Pol Auto 73 54 SCT Source Internal 74 55 Tx Framing 1 15 IBS 75 56 Port RS 485 76 80 81 82 ALARM Mask 83 64 TxBack P No SW F04780 Ver 2 Intf Pres IDR V 35 422 5 V Mon 44 8 12 V Mon 12 4 12 V Mon 12 1 Events 28 CONTROLS 2 SETUP Rx Terr Intf RS 422 Buffer msec 32 BufClk Sel RX SAT Buff Clk Pol Normal Rx Framing 1 15 IBS RxAsync Port RS 485 ALARM Mask Prompt No Service F No BER SP No RxBack P No Figure 4 21 D amp I RS 422 V 35 RS 232 Interface Control Terminal Screen 4 34 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces 1 Main Menu IF Input dBm 54 1 6 V SW F04780 Ver 2 2 Control Mode Ft Panel Eb No NO SYNC Intf Pres IDR V 35 422 3 Remote Mode RS 485 Uncor
138. cluded in run time software It is also advantageous to consider the use of multiple bus systems where warranted by a moderate to large equipment complement Therefore if a DMD2401 is queried for its equipment type identifier it will return a 27 4 4 6 Software Compatibility y CAUTION The DMD2401 RLLP is not software compatible with the following previous Radyne products RCU5000 and DMD4500 These products may not occupy the same bus while using this protocol as equipment malfunction and loss of data may occur When Radyne equipment is queried for information Query Mod Query Demod etc it responds by sending back two blocks of data a non volatile section parameters that can be modified by the user and a volatile section status information It also returns a count value that indicates how large the non volatile section is This count is used by M amp C developers to index into the start of the volatile section When new features are added to Radyne equipment the control parameters are appended to the end of the non volatile section and status of the features if any are added at the end of the volatile section If a remote M amp C queries two pieces of Radyne equipment with different software revisions they might respond with two different sized packets The remote M amp C MUST make use of the non volatile count value to index to the start of the volatile section If the remote M amp C is not aware of the newly added features to
139. commended that the latched alarms be cleared as a final step 6 3 DMD2401 Fault Tree Matrices Tables 6 1 through 6 3 represent in matrix form the faults that may occur within the DMD2401 There are three matrices Interface Common Equipment Faults Tx Faults and Rx Faults INTERFACE COMMON EQUIPMENT FAULTS COM EQUIP FAULT RELAY SW COM EQUIP FAULT RELAY IBS BACKWARD ALARM SWITCH BACK TO INTERNAL TX BACKWARD ALARM BOTH MOD AND DEMOD FAULT OPEN COLLECTOR MINOR ALARM RELAY SIGNAL LOCK LED RX FAULT LED RX MINOR ALARM LED TX ON LED FAULT LED DEMOD FAULT RELAY 5V OUT OF RANGE 12V OUT OF RANGE 3 ud 2 o iE EDEN TX MAJOR ALARM LED BEE RX MAJOR ALARM LED Bmw MOD FAULT RELAY ZV OUT OF RANGE PDT TS 111 11 1 Table 6 1 DMD2401 Interface Common Equipment Fault Matrix 6 2 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Maintenance RX FAULTS RX MINOR ALARM LED RX MAJOR ALARM LED MOD FAULT RELAY DEMOD FAULT RELAY COM EQUIP FAULT RELAY SW COM EQUIP FAULT RELAY IBS BACKWARD ALARM RESERVED RESERVED SIGNAL LOCK LED OFF DEMOD FAULT OPEN COLLECTOR SIGNAL LOSS cpm 3 juential is Used 4 BUFFER UNDERFLOWS BUFFER PLL UNLOCKS Table 6 2 DMD2401 RX Fault Matrix TX FAULTS TX IF OUTPUT OFF TX MAJOR ALARM LED MOD FAULT RE
140. d IBS and IDR data rates up to 4 375 Mbps Selection of any data rate in closed network operation is provided over the range of 9 6 Kops to 4 375 Mbps in 1 bps steps The maximum symbol rate is 2 5 Msps regardless of modulation type FEC code rate or framing type The DMD2401 is designed to perform as both ends of a satellite Single Channel Per Carrier SCPC link or as the VSAT remote site modem in a TDMA hub system in mesh or star topology networks The Modulator and Demodulator operate independently using BPSK QPSK OQPSK or 8PSK modulation in either SCPC or VSAT Modes The DMD2401 is also the ideal VSAT modem for use in a Point to Point Frame Relay Hybrid Network Other applications include FDMA telephony video conferencing long distance learning paging and newsgathering Refer to Table 1 1 for selection of any data rate that is provided over the following ranges Table 1 1 Data Rates BPSK 4800 bps N A 7200 bps 8400 bps 1250 Kbps 1875 Kbps 2187 5 Kbps QPSK 9600 bps N A 14400 bps 16800 bps 2500 Kbps 3750 Kbps 4375 Kbps 5 9600 bps N A 14400 bps 16800 bps 2500 Kbps 3750 Kbps 4375 Kbps 8PSK N A Optional N A N A The DMD2401 is programmable from the front panel The program menu was specifically designed for ease of use to quickly put the modem online and for any network changes The modem also can be monitored and controlled through the RS 485 or RS 23
141. d upon the clock recovered from the insert data input Therefore the Buffer Clock selection will automatically be set to External and cannot be modified When the insert terrestrial frame source selection is set to Internal the operator needs to specify how data should be clocked out of the Doppler buffer In this case the operator will be able to select either SCTE SCT or RX SAT as the source for the Buffer Clock Therefore the insert terrestrial frame source selection should be made prior to attempting to change the Buffer Clock In most instances the insert terrestrial frame source selection will be set to External and the Buffer Clock will automatically be set to External 3 10 5 Alarms The following alarms are unique to Drop amp Insert and vary based on the terrestrial framing Alarms Modem Alarms Active Alarms Minor Tx Drop Alarms FrmLock Indicates Terrestrial Frame lock on the Send Data Port Valid in all framing modes MFrmLck Indicates Terrestrial Multiframe lock on the Send Data Port Valid in PCM 30 PCM 30C CRCLock Indicates valid CRC received via the Send Data Port Valid in 31 PCM 30C SigData Indicates valid signaling data received via the Send Data Port Valid in PCM 30 PCM 30C Minor Rx Insert Alarms FrmLock Indicates Terrestrial Frame lock on the Receive Data Port Valid in all framing modes MFrmLck Indicates Terrestrial Multiframe lock on the Receive Data Port Valid in PCM 30 PCM 30C
142. de lt 2C04h gt lt 1 gt lt 1 gt lt 1 gt From Map to Change New Map Comman Comman Hour Minute Second DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem d Drop and Insert Copy 0 Drop Active Map 1 Insert Active Map 2 Drop Edit Map 3 Insert Edit Map 4 11 User Map 1 through 8 12 19 ROM Maps 1 through 8 0 Drop Active Map 1 Insert Active Map 2 Drop Edit Map 3 Insert Edit Map 4 11 User Map 1 through 8 id Module s External Reference Frequency 0 Drop Active Map 1 Insert Active Map 2 Drop Edit Map 3 Insert Edit Map 4 11 User Map 1 through 8 d Clear all Latched Alarms No Parameters Set Time 0 23 0 59 0 59 Opcode lt 2C05h gt lt 1 gt Year lt 1 gt Month 1 Day Opcode lt 2C06h gt lt 1 gt Year lt 1 gt Month lt 1 gt Day lt 1 gt lt 1 gt lt 1 gt Second Command Set Date 0 99 0 11 0 30 Command Set Time and Date 0 99 0 11 0 30 0 23 0 59 0 59 Opcode lt 2C07h gt Opcode lt 2C30h gt 4 94 Command soft reset the modem to the power up state no parameters Command Module Set Default Configuration No Parameters TMO65 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 4 4 13 4 Default Values Modulator Opcode lt 2601h gt Command a Modulator s Configuration User Interfac
143. de enables the modulator s output based on the RTS lead of the data interface When RTS is enabled on the data interface the modulator turns on the carrier when the RTS is disabled the modulator turns off the carrier 065 Rev 3 3 8 11 Appendices DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem This Page is Intentionally Left Blank 8 12 065 Rev 3 3
144. dec is available Asynchronous Channel Asynchronous overhead channel for remote control and order wire applications 7 7 Environmental Prime Power 100 240 VAC 50 60 Hz 1 0 IEC 3 Pin Power Connector with Switch Operating Temp to 50 C 95 humidity non condensing Storage Temp 20 to 70 C 99 humidity non condensing 7 8 Physical Chassis size 19 x 17 x 1 75 inches 48 26 x 43 2 x 4 45 cm Weight 8 pounds 3 6 Kg Shipping Weight 10 pounds 4 5 Kg 065 Rev 3 3 7 3 Technical Specifications DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem This Page is Intentionally Left Blank 7 4 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Section 8 Appendices Appendix A Reed Solomon Codes n Valid Values for k 2 1 3 2 4 2 3 5 3 4 6 3 4 5 7 4 5 6 8 4 6 7 9 5 6 7 8 10 5 7 8 9 11 6 8 9 10 12 6 8 9 10 11 13 7 9 10 11 12 14 7 10 11 12 13 15 8 10 12 13 14 16 8 11 12 13 14 15 17 9 12 13 14 15 16 18 9 12 14 15 16 17 19 10 13 15 16 17 18 20 10 14 15 16 17 18 19 21 11 14 16 17 18 19 20 22 11 15 17 18 19 20 21 23 12 16 18 19 20 21 22 24 12 16 18 20 21 22 23 25 13 17 19 20 21 22 23 24 26 13 18 20 21 22 23 24 25 27 14 18 21 22 23 24 25 26 065 Rev 3 3 Appendices 8 1 Appendices 28 14 19 21 23 24 25 26 27 29 15 20 22 24 25 26 27 28 30 1
145. dulator functions that may alter the output spectrum through the front panel but the output is automatically turned on after the change When using the terminal the modulator is turned off while re programming modulator functions that may alter the output spectrum and but the output is automatically turned on after the change Modulator output is turned off before reprogramming modulator functions that may alter the output spectrum through the front panel and the user is required to enter Yes to re enable output after the change When using the terminal the modulator is turned off while re programming modulator functions that may alter the output spectrum and the user is required to manually turn on the output after the reprogramming same as Carrier Additionally mode disables the modulators output is the modems demodulator does not have signal lock When signal lock returns to the demodulator the modems modulator turns the carrier back on Modulator output is turned off before reprogramming modulator functions that may alter the output spectrum through the front panel and the user is required to enter Yes to re enable output after the change When using the terminal the modulator is turned off while re programming modulator functions that may alter the output spectrum and the user is required to manually turn on the output after the reprogramming same as Carrier Additionally RTS Request To Send mo
146. e following parameters Frequency 10 MHz 9 MHz 5 MHz 2 048 MHz or 1 024 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 4 3 EXT CLK J3 The External Clock Port J3 is used for injecting an external data clock into the modem The data symbol clocks may then be selected to be locked to this source The external clock must meet the following requirements Frequency 9600 Hz to 2 048 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 4 4 XMIT IF OUT J4 The Transmit IF Output Port J4 is the 50 90 MHz and 100 180 MHz Modulator IF Output 5 4 5 TERMINAL J5 The Terminal Port J5 pinouts are listed in Table 5 2 065 Rev 3 3 5 7 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 4 6 ALARM J6 The modem has two Form C Dry Contact Alarm Relays onboard and an Alarm Connector located on the rear panel the 9 pin male D sub connector J6 The two relays are designated Modulator Alarm and Demodulator Alarm Non Alarm is defined as the powered state of the relay Thus if there is a Modulator Alarm and or Demodulator Alarm the pins will be connected as shown in Table 5 3 The pin definitions for J6 are shown in Table 5 4 Note that the NC and NO Normally Closed and Normally Open nomenclature applies to non energized relays 5 4 7 REMOTE J7 The Remote Port J7 is the RS 485 connection for remote monitor and control of the modem It is a 9 Pi
147. ed 6 E1 CRC Alarm Received 7 CRC Calculation Fault Bit 0 Backward Alarm Received from Satellite Bits 2 7 Spares Force D amp l Terrestrial Backward Alarm to be Trans Opcode lt 2A01h gt 4 Opcode lt 2A02h gt 4 Opcode lt 2A04h gt 1 Opcode lt 2A07h gt 1 4 86 Frequency Data Rate Sweep Boundary Demodulation Type Command Demodulator s Frequency Unsigned Binary Value in Hz a Demodulator s Data Rate Unsigned Binary Value in BPS Command a Demodulator s Sweep Boundary Set in 1 kHz Steps Max of 255 kHz Command a Demodulator s Demodulation Type 0 QPSK 1 BPSK 2 8PSK 4 OQPSK TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Opcode lt 2A08h gt lt 1 gt User Interfaces Command a Demodulator s Convolutional Decoder Convolutional Decoder 0 None 1 Viterbi 1 2 Rate 3 Viterbi 3 4 Rate 5 Viterbi 7 8 Rate 7 Sequential 1 2 Rate 9 Sequential 3 4 Rate 11 Sequential 7 8 Rate 14 Trellis 2 3 20 TPC 0 7932D 21 TPC 0 4953D Opcode lt 2A09h gt lt 1 gt Opcode lt 2A0Ah gt Command a Demodulator s Differential Decoder Differential Decoder 0 Off 1 On Command a Demodulator s Reed Solomon Reed Solomon Reed Solomon N Reed Solomon K Reed Solomon T RS Interleaver Depth 0 Disable 1 Enable Unsigned
148. ee Paragraph B 6 This is the number of configuration bytes and is an offset to the start of the status block 1 Modulation Type 0 QPSK 1 BPSK 2 8PSK 4 OQPSK 065 Rev 3 3 User Interfaces lt gt lt gt lt gt lt gt 1 1 1 1 1 1 1 1 Convolutional Encoder Reed Solomon Reed Solomon N Reed Solomon K Reed Solomon T RS Interleaver Depth Scrambler Control Scrambler Type Transmit Power Level Differential Encoder Carrier Control Carrier Selection Spectrum Operating Mode Clock Control Clock Polarity SCT Source DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 0 None 1 Viterbi 1 2 Rate 3 Viterbi 3 4 Rate 5 Viterbi 7 8 Rate 7 Sequential 1 2 Rate 9 Sequential 3 4 Rate 11 Sequential 7 8 Rate 14 Trellis 2 3 20 TPC 0 7932D 21 TPC 0 49530 0 Disable 1 Enable Unsigned Binary Unsigned Binary Unsigned Binary Unsigned Binary 4 or 8 0 Off 1 2 On 0 None 1 IBS Scrm 2 V35 IESS 3 V35 CCITT 4 V35_EFDATA 7 Reed Solomon Scrm 8 V35_EFRS Signed value 50 to 300 5 0 to 30 0 dBm Implied Decimal Point 0 Off 1 2 On 0 Off 1 2 Auto 3 VSat 4 RTS 0 Normal 1 CW 2 Dual 3 Offset 0 Normal 1 Inverted 0 Normal 1 2047 Test 0 Internal SCT 1 External SCTE 0 Normal 1 Inverted 2 Auto
149. ef Frequency 261Bh Command Mod Data Invert 2623h Command Mod SCT Source 260Dh Command Mod Async TERR Interface 2626h Command Mod CTS Mode and Polarity 2631h Command Mod CTS Level 2632h 4 45 User Interfaces Command Mod Carrier Delay 4 4 11 Demodulator Command Set Command Opcode DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 2637h 4 46 Query Demodulator All 2401 Query Demod Latched Alarms 2406h Query Demod Current Alarms 2409h Query Demod Status 240Ch Query Demod Eb No Input Level Raw BER Corrected 240Dh BER and Frequency Offset AGC Voltage Query Demod Lock Status 2437h Command Demod All 2A00h Command Demod Frequency 2 01 Command Demod Data Rate 2A02h Command Demod Sweep Boundary 2A04h Command Demod Demodulation 2A07h Command Demod Convolutional Decoder 2A08h Command Demod Differential Decoder 2A09h Command Demod Reed Solomon 2A0Ah 2A0Bh Command Demod Descrambler 2A0Dh Command Demod Descrambler 2A0Eh Command Demod Spectrum 2A0Fh Command Demod Buffer Clock 2A11h Command Demod Buffer Clock Polarity 2A12h Command Demod Insert Mode 2A13h Command Demod Operating Mode 2A17h Command Demod BER Measure Period 2A1Ah
150. el Section 4 2 7 go to System Menu Firmware Rev Menu DaughterCPLD and check for 04230 Revision or above or F04821 3 9 1 IDR Configuration Older Modems 1 In this configuration J17 on the back panel will be used as the ESC Port 2 Attach the 10 Pin Ribbon Cable from J17 on the Back Panel to J3 on the AS 3760 Interface Card 3 Remove Jumpers R38 and R40 located on the AS 3771 Daughter Card 4 Cycle power on the unit 3 9 2 IBS D amp l Configuration Older Modems 1 In this configuration J17 on the back panel will be used as the ES ES Communications Port 2 Attach the 10 Pin Ribbon Cable from J17 on the Back Panel to J11 on the AS 3771 Daughter Card 3 Install Jumpers R38 and R40 located on the AS 3771 Daughter Card 4 Cycle power on the unit 3 10 Configuring the DMD2401 for Drop and Insert Several dependencies exist when configuring the modem for Drop and Insert D amp I The following paragraphs explain these dependencies and provide the user with the information required to ensure smooth transition into Drop amp Insert and to minimize the potential impact of these dependencies 065 Rev 3 3 3 7 Operation DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem The following steps should be followed when setting up Drop amp Insert 1 8 Select the appropriate interface type Newer Modem 1 Balanced 1 1 544 Mb AMI Coding B T1 B8ZS Balanced T1 1 544 Mb B8ZS Codin
151. em 3 Set the display to read Map Copy RX EDIT gt RX ACTIVE 4 Press ENTER to enter the settings into the modem To View the current Timeslot Assignment 1 If there is a question of the channels not being entered properly the Mapping Menu may be used to see how the channels timeslots are configured in the modem 2 Use ENTER and the Arrow Keys to make the mapping menu read for the Tx Side Map Copy TX ACTIVE TX EDIT 3 Press ENTER The modem has now copied the current Tx Settings to the Tx Channel Timeslot Display 4 For the Rx Side Map Copy RX ACTIVE RX EDIT 5 Press ENTER The modem has now copied the current Rx Settings to the Rx Channel Timeslot display Note It is not mandatory to assign timeslots in sequential order although the lowest timeslot must be entered in the lowest channel For example timeslots may be assigned 1 2 2 5 etc but not 1 5 2 2 3 12 Loopbacks 3 12 1 Terrestrial Loopback Terrestrial Loopbacks provides the following data loopback on the interface card Tx Loopback Terrestrial TX data after passing through the line interface is looped back to the Rx data line drivers refer to Figure 3 3 Rx Loopback The Rx data received by the satellite is looped back through the interface for retransmission to the satellite providing a far end loopback refer to Figure 3 4 Tx Rx Loopback Provides both of the above loopbacks simultaneously refer to Figure 3 5
152. emphasized One pitfall which is often overlooked concerns multi drop override IDs All too often multiple 4 40 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces devices of the same type are assigned in a direct linked single thread configuration accessible to the M amp C computer directly For example if two DMD2401 Modems with different addresses DESTINATION IDs are linked to the same control bus at the same hierarchical level both will attempt to respond to the M amp C computer when the computer generates a multi drop override ID of 22 If their actual setup parameters status or internal timing differs they will both attempt to respond to the override simultaneously with different information or asynchronously in their respective message packets and response packets causing a collision on the serial control bus To preclude control bus data contention different IDs must always be assigned to the equipment If two or more devices are configured for direct linked operation then the M amp C computer and all other devices configured in the same manner must be programmed to inhibit broadcast of the corresponding multi drop override ID The multi drop override ID is always accepted by devices of the same type on a common control bus independent of the actual DESTINATION ID These override IDs with the exception of BROADCAST are responded to by all directly linked devices of the same t
153. ernal BNC Clock Pass Fail Indicates no Tx Sat Clock activity Pass Fail Indicates no Tx Data activity Pass Fail Indicates that AIS has been detected in the Terrestrial Data Stream Pass Fail Indicates the status of the Tx Reed Solomon FIFO Pass Fail Indicates that a Doppler Buffer underflow has occurred Pass Fail Indicates that a Doppler Buffer overflow has occurred Pass Fail Indicates that the Doppler Buffer has gone below 10 full and may underflow Pass Fail Indicates that the Doppler Buffer has gone above 90 full and may overflow 065 Rev 3 3 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem VitLock SeqLock Rx Activity menu Buf Mask Ext BNC Mask Rx Sat Mask ExtRef Mask SatAIS Mask Rx RS Faults menu DecLock Mask Dintlvr Mask UnCWord Mask IBS Alarms menu Prompt Mask Service Mask BER Mask Common menu 12Volt Mask Pass Fail Indicates that the Viterbi Decoder is not locked Pass Fail Indicates that the Sequential Decoder is not locked Pass Fail No Yes Indicates that the selected buffer clock source is not active Pass Fail No Yes Indicates no activity on the External BNC Clock Port Pass Fail No Yes Indicates that the Rx Sat Buffer clock source is not active Pass Fail No Yes Indicates no activity on the external reference Pass Fail No Yes Fail indicates a lo
154. es lt 4 gt Frequency 70 000 000 Hz lt 04 gt lt 2C gt lt 1D gt lt 80 gt lt 3 gt Reserved lt 00 gt lt 00 gt lt 00 gt lt 4 gt Data Rate 2 048 000 BPS lt 00 gt lt 1F gt lt 40 gt lt 00 gt lt 4 gt 2 048 000 2 lt 00 gt lt 1F gt lt 40 gt lt 00 gt 1 Freq Reference 0 Internal 00 Source 1 Modulation Type 0 QPSK 00 1 Convolutional 1 Viterbi 1 2 Rate 01 Encoder 1 Reed Solomon 0 Disable 00 1 Reed Solomon N 126 TE 1 Reed Solomon K 112 70 1 Reed Solomon T 7 07 1 RS Interleaver 4 04 Depth 1 Scrambler 1 On lt 01 gt Control lt 1 gt Scrambler Type 2 V35 IESS lt 02 gt lt 2 gt Transmit Power 30 0 dBm lt FE gt lt D4 gt Level lt gt Differential 1 On lt 01 gt Encoder lt gt Carrier Control 0 Off lt 00 gt lt 1 gt Carrier Selection 0 Normal lt 00 gt lt 1 gt Spectrum 0 Normal lt 00 gt lt 1 gt Operating Mode 0 Normal lt 00 gt lt 1 gt Clock Control 0 Internal lt 00 gt lt 1 gt Clock Polarity 0 Normal lt 00 gt lt gt 5 0 Internal lt 00 gt lt 1 gt 1 No Alarms Masked lt FF gt lt 1 gt Alarm 2 Mask No Alarms Masked lt FF gt lt 1 gt Alarm 1 No Alarms Masked lt FF gt lt 24 gt Tx Circuit ID 24 ASCII Spaces l
155. es Universal 3 Remote Mode RS 485 Uncorrected SER 0 E 5 5 V Mon 44 8 4 Remote Addr 32 Corrected BER 0 E 12 12 V Mon 12 4 Offset Frq Hz 10 12 V Mon ys 12 1 6 Center Buffer 2047 Error Cnt NO SYNC Events x13 Buffer 111 49 2047 BER NO SYNC era UNIVERSAL G 703 SYNCHRONOUS INTERFACE CONTROLS GENERAL TX SETUP RX SETUP 31 EXC Clock 10000000 DlI Tx Univ Intef Unel 71 Rx Univ Intf U El 32 Ref Source Internal 72 Buffer msec 32 33 Ext Ref Fq 10 000000 73 BufClk Sel RX SAT 55 Tx Framing 1 15 IBS 75 Rx Framing 1 15 IBS 56 TxAsync Port RS 485 76 RxAsync Port RS 485 38 ForceTxBack Normal ALARM Mask 80 Prompt F No 81 Service F No 42 1 ID i 82 BER P No 43 Rx Ckt ID x ALARM Mask 83 RxBack P No 64 TxBack P No Enter Selection Number Figure 4 17 D amp l Universal G 703 Interface Control Terminal Screen 4 32 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 1 Menu 2 Control Mode Terminal 3 Remote Mode RS 485 4 Remote Addr 32 6 Center Buffer Buffer Fill 50 GENERAL 31 EXC Clock 10000000 32 Ref Source Internal 33 Ext Ref Fq 10 000000 42 Tx Ckt ID 43 Rx Ckt ID Enter Selection Number IF Input dBm 61 9 V Eb No NO SYNC Uncorrected SER 2 55E 1 Corrected BER 7 00E 4 Offset Frq Hz 46 2047 Error Cnt NO SYNC 2047 BER NO SYNC TX SETUP Bl Tx Univ IntfiU El 55 Tx Framing None RX RS 72 37 KS SW F04780
156. established maximum equipment task processing times 4 42 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces Each piece of supported equipment on the control bus executes a Radyne Link Level Task RLLT in accordance with its internal hardware and fixed program structure In a flow control example the RLLT issues an internal message in system call to invoke an 1 0 wait condition that persists until the task receives a command from the M amp C computer The RLLT has the option of setting a timeout on the incoming message Thus if the equipment does not receive an information command packet within a given time period the associated RLLT exits the 1 0 wait state and takes appropriate action Radyne equipment is logically linked to the control bus via an Internal I O Processing Task to handle frame sequencing error checking and handshaking The IOPT is essentially a link between the equipment RLLT and the control bus Each time the M amp C computer sends a message packet the IOPT receives the message and performs error checking If errors are absent the IOPT passes the message to the equipment s RLLT If the IOPT detects errors it appends error messages to the packet Whenever an error occurs the IOPT notes it and discards the message but it keeps track of the incoming packet Once the packet is complete the IOPT conveys the appropriate message to the RLLT and invokes 1 0 wait state wait for
157. etect Fault Bit 4 Terrestrial AIS Tx Data AIS Detect Fault Bit 5 Transmit Ext BNC Clock Activity Detect Fault Bit 6 Transmit Reed Solomon Fault Bit 7 Tx BUC Fault LBST Only 0 Mask 1 Allow Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 5 V Alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault 4 59 User Interfaces 4 60 lt 24 gt lt gt lt gt lt gt Tx Circuit ID Tx Terrestrial Loopback Tx Baseband Loopback Reserved Reserved Data Invert Framing Async Baud Rate Async Port Type Async Terrestrial Interface Type Multiprotocol Interface Card Interface Type DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Bit 6 RAM ROM Fault Bit 7 Spare 0 Mask 1 Allow ASCII Characters 0 Disabled 1 Enabled 0 Disabled 1 Enabled Set to Zero Set to Zero 0 Normal 1 Invert Note The following byte applies only if an Asynchronous IDR or IBS Interface is installed If not set to zero 0 No Framing 1 1 16 IBS 2 1 16 Async 3 96 Kbit IDR Note The following byte applies only if an Asynchronous Interface Card is installed If not set to zero 0 1200 1 2400 2 4800 3 9600 4 19200 5 50 6 110 7 300 8 600 Note The following byte applies only if an Asynchronous Interface Card is installed If not set to zero 0 RS 232 1 RS 485 Note The following byte applies
158. f not set to zero If G 703 daughter card installed 0 G 703 Unbalanced E1 1 G 703 Balanced E1 2 G 703 T1 B8ZS If synchronous multiprotocol daughter card is installed 0 V 35 1 RS 422 2 RS 232 Note The following two bytes apply only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode If not set to zero 20 to 10 Signed Binary Value in dB Note The following two bytes apply only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode If not set to zero 20 to 10 Signed Binary Value in dB 4 85 User Interfaces lt 1 gt lt 1 gt lt 30 gt Alarm 5 Mask Insert Mode Insert Map Insert Alarm Mask Insert Back Alarm Mask Force Terrestrial Back Alarm Insert Edit Map DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Bit 0 IBS Satellite Multiframe Fault Bit 1 IBS Satellite Frame Fault Bit 2 Spare Bit IBS Alarm if BER lt 107 Bit 4 IBS Prompt Alarm Bit 5 IBS Service Alarm Bits 6 7 Spares 0 Mask 1 Allow Bit 0 Disable Bit 1 T1 D4 Bit 2 T1 ESF Bit 3 PCM 30 Bit 4 PCM 30C Bit 5 PCM 31 Bit 6 PCM 31C Bit 7 T1 SLC96 Mapping of Satellite Channels to Insert Terrestrial Timeslots 0 Frame Lock Fault 1 MultiFrame Lock Fault 2 CRC Lock Fault Valid only in T1 ESF and 1 CRC enabled 3 T1 Yellow Alarm Received 4 E1 FAS Alarm Received 5 E1 MFAS Alarm Receiv
159. faces BER Exponent DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 3 9 Sets the time base for the channel error rate measurement used to estimate Eb No 4 2 6 Alarms Menu Options and Parameters Modem Alarms menu Active Alrms menu Major Tx menu TxProc Mask TxPower Mask TxOSCIk Mask CompCLK Mask TxSynth Mask Tx FPGA Mask Ref PLL Mask Tx Force Major Rx menu RxProc Mask Status Edit Table Pass Fail No Yes Tx Processor fault Indicates a HARDWARE Transmit or DSP Failure within the modem Yes Masked No Unmasked Pass Fail No Yes Indicates that the Modem Tx Output Power is within allowed tolerances Pass Fail No Yes Indicates that the Tx Oversample Clock PLL is not locked This alarm will flash On during certain modem parameter changes Pass Fail No Yes Indicates that the Tx Composite Clock PLL is not locked This alarm will flash On during certain modem parameter changes Pass Fail No Yes Indicates that the Tx IF Synthesizer is not locked This alarm will flash On during certain modem parameter changes Pass Fail No Yes This alarm indicates a Transmit Hardware FPGA failure within the modem Pass Fail No Yes This alarm indicates that the Modem Synthesizers are not locked to the external reference Pass Fails Allows a Major Tx Alarm to be forced for testing purposes etc Pass Fail No Yes Rx Processor fault
160. g U E1 Unbalanced E1 2 048 Mb HDB3 Coding B E1 Balanced E1 2 048 Mb HDB3 Coding Older Modem B T1 B8ZS Balanced T1 1 544 Mb B8ZS Coding U E1 Unbalanced E1 2 048 Mb HDB3 Coding B E1 Balanced E1 2 048 Mb HDB3 Coding Set the mode to Closed Net Select the desired Data Rate Set the Mode to Drop amp Insert Select the Terrestrial Framing Select the Terrestrial Frame Source applicable to Insert only Use the SatCh TS edit capability to define the desired mapping of Satellite Channels to Terrestrial Slots Copy the appropriate Edit Map to the Active Map 3 10 1 Interface Type Interface Type affects the terrestrial framing and data rates used by the Drop amp Insert function in the following ways 1 3 8 When 1 interface type is selected the terrestrial framing options will only reflect the valid T1 framing selections of T1 D4 D4 framing no Robbed Bit Signaling T1 ESF ESF framing no RBS T1 D4 S D4 framing with Robbed Bit Signaling T1 ESF S ESF framing with RBS When an E1 interface type is selected the terrestrial framing options will only reflect the valid E1 framing selections of PCM 30 Channel Associated Signaling PCM 30C CAS with CRC checking PCM 31 Common Channel Signaling PCM 31C CCS with CRC checking When 1 interface type is selected attempting to change the data rate to 1920000 will result the error message DATA RATE OUT OF BOUNDS If an E1 inte
161. gure it find the resistor location that corresponds to the equivalent switch on the other interfaces and install the appropriate resistor To place a switch in the OFF position corresponds to a TBD Ohm resistor To place a switch in the ON position corresponds to a 0Q Resistor For example to place Switch 3 in the ON position install a 00 Resistor for location R71 Table 5 39 AS 4803 Daughter Card Corresponds to Switch Resistor Location R4 1 R6 R7 R8 R9 R10 OFF TBD ON 00 Resistor 5 36 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Maintenance Section 6 Maintenance 6 0 Periodic Maintenance The DMD2401 modulator requires no periodic field maintenance procedures Should a unit be suspected of a defect in field operations after all interface signals are verified the correct procedure is to replace the unit with another known working DMD2401 If this does not cure the problem wiring or power should be suspect There is no external fuse on the DMD2401 The fuse is located on the power supply assembly inside the case and replacement is not intended in the field 6 1 Troubleshooting The following is a brief list of possible problems that could be caused by failures of the modem or by improper setup and configuration for the type of service The list is arranged by possible symptoms exhibited by the modem Symptom The Modem will not acquire
162. he card to best utilize the available bits Standard IBS and IBS Async The characteristics of the Channel Interface is also determined by the standard or Async mode The Async Channel can be set under software control to either RS 232 or RS 485 mode The pin assignments for both modes are shown in Table 1 The RS 485 setting controls the output into tri state when the modem is not transmitting data allowing multiple modem outputs to be connected together 3 4 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Operation Baud Rate Baud Rate Kbps Example for Kbps Example for Standard Enhanced IBS Mode 128 64 9 6 300 256 128 19 2 600 384 192 32 600 512 256 64 1200 640 320 128 2400 768 384 192 4800 896 448 256 4800 1024 512 320 9600 1152 576 384 9600 1280 640 448 9600 1408 704 512 9600 1536 768 576 9600 1664 832 640 19200 1792 896 704 19200 1920 960 768 19200 2048 1024 832 19200 896 19200 960 19200 1024 19200 1088 19200 1152 19200 1216 19200 1280 19200 1344 19200 1408 19200 1472 19200 1536 19200 1600 19200 1664 19200 1728 19200 1792 19200 1856 19200 1920 19200 1984 19200 208 19200 0
163. he modem can be accomplished from the front panel or in the Terminal Mode The Terminal Mode has the advantage of providing full screen access to all of the modem s parameters but requires a separate terminal or computer running a terminal program The unit is placed into terminal mode by setting two options via the front panel The two options are the Term Baud and Emulation settings found under the System M amp C submenus 2 2 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Terminal Setup Baud Rate Data Bits Parity Stop Bits 065 Rev 3 3 19 2 K Can be changed via front panel 8 No Parity Fixed 1 Stop Bit Installation 2 3 Installation 2 4 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem This Page is Intentionally Left Blank TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Operation Section 3 Operation 3 0 Theory of Operation A digital terrestrial interface supplies the modulator with a data stream The data stream is synchronized if the incoming stream is framed The data is scrambled and FEC is added The data is then convolutionally encoded punctured then constellation mapped The resulting I amp Q symbols are digitally filtered The data is then converted into an analog waveform and is vector modulated onto an RF Carrier produced from the Transmit IF Synthesizer Circuitry 3 1 DMD2401 Operation A block diagram of the signal flow is shown
164. head Channel Que c Noise 1 1 5 8PSK Modulation The DMD2401 can be equipped with 8PSK Modulation capability as an add on option The 8PSK Option can be added by installing one IC into an existing socket 1 1 6 Analog AGC Voltage The DMD2401 can be equipped at the factory to produce an analog voltage equivalent to its AGC for use in antenna controllers 1 1 7 Drop and Insert D amp l The DMD2401 can be equipped at the factory with D amp l as an add on enhancement The D amp l Functions are completely independent and can be programmed for n x 64 blocks of either T1 or E1 Data Streams 1 1 8 Turbo Product Codec TPC The DMD2401 can be equipped at the factory with TPC as an add on option The TPC Option is a daughter card which can be added by installing the card on modems with the required header TPC works with all installed modulations on the DMD2401 and functions throughout the Modem s symbol rate limits TPC is used to enhance performance of the DMD2401 Modem 065 Rev 3 3 1 3 Introduction DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem This Page is Intentionally Left Blank 1 4 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Installation Section 2 Installation 2 0 Installation Requirements The DMD2401 can be installed within any standard 19 inch equipment cabinet or rack and requires 1 RU mounting space 1 75 inches vertically and 21 inches of depth Including cabling a minimum of
165. hed Alarms In addition a feature exists that allows the user to Mask out certain Alarms as explained below Alarms that are recorded in the event buffer are the same as the alarm buffer 065 Rev 3 3 6 1 Maintenance DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 6 2 1 Alarm Masks The user has the capability to Mask individual alarms on the DMD2401 When an Alarm is masked the front panel LEDs and the Fault Relays do not get asserted but the Alarm will still be displayed This feature is very helpful during debugging or to lock out a failure that the user is already aware of 6 2 2 Active Alarms 6 2 2 1 Major Alarms Major alarms indicate a modem hardware failure Major alarms may flash briefly during modem configuration changes and during power up but should not stay illuminated Alarms are grouped into Transmit alarms and Receive alarms Transmit and Receive are completely independent 6 2 2 2 Minor Alarms Minor alarms indicate that a problem may persist outside the modem such as loss of terrestrial clock loss of terrestrial data activity or a detected transmit or receive AIS condition Alarms are grouped into Transmit Alarms and Receive Alarms Transmit and Receive are completely independent 6 2 2 3 Latched Alarms Latched alarms are used to catch intermittent failures If a fault occurs the fault indication will be latched even if the alarm goes away After the modem is configured and running it is re
166. ication 3 2 3 DAMA Demand Assigned Multiple Access 3 2 3 2 4 TDMA Time Division Multiple Access Remote Site Application 3 3 DMD2401 Initial Configuration Check 3 2 3 3 3 4 DMD2401 Automatic Uplink Power Control AUPC Operation 3 3 3 5 DMD2401 Asynchronous Overhead Operation 3 4 3 5 1 Asynchronous Framing Multiplexer Capability 3 4 3 6 Standard IBS Mode 3 6 065 Rev 3 3 vii Table of Contents DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 3 8 ESC Backward Alarms 3 10 1 Interface Type 3 10 2 Mode 3 10 3 Data Rate 3 10 5 Alarms 3 11 Drop and Insert Mapping 3 12 Loopbacks 3 12 1 Terrestrial Loopback 3 12 2 Baseband Loopback 3 12 3 IF Loopback Section 4 User Interfaces 4 0 User Interfaces 4 1 Front Panel User Interface 4 1 1 Front Panel LCD Display 4 1 2 Front Panel LED Indicators 4 1 3 Front Panel Keypad 4 1 4 Parameter Setup 4 2 1 Main Menus 3 7 Asynchronous Multiplexer Mode 3 6 3 6 3 8 1 To Disable the ESC Backward Alarms 3 7 3 9 IDR or IBS D amp l Configuration Instructions 3 7 3 9 1 IDR Configuration Older Modems 3 7 3 9 2 IBS D amp I Configuration Older Modems 3 7 3 10 Configuring the DMD2401 for Drop and Insert 3 7 3 8 3 9 3 9 3 10 4 Terrestrial Framing Drop Mode Insert Mode 3 10 3 10 4 1 Insert Terrestrial Frame Source 3 10
167. in Figure 3 1 below The modem is shown in a typical application with customer data Tx Rx RF Equipment and an antenna DMD2401 Satellite Modem 100 to 240 VAC 50 to 60 Hz Remote Serial Interfaces Figure 3 1 Functional Block Diagram 3 2 Applications Following are just a few representative forms of satellite communication links and networks in which the DMD2401 modem may be used 3 2 1 SCPC Point to Point Links The most straightforward application for a satellite modem is to serve as the Data Communications Equipment DCE for a point to point data link When used in this mode two modems located at two different sites are tuned to complementary transmit and receive frequencies Each direction of the communications link may have the same or entirely different transmission parameters In this application it is typical that the link is established and maintained on a continuous basis although a special on demand case is described later 065 Rev 3 3 3 1 Operation DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 3 2 2 SCPC Point to Multi Point Links in a Broadcast Application A broadcast application might involve the necessity of sending continuous or intermittent data from one source and broadcasting the information to many remote locations For instance constant pricing information and updates may be sent by a central location to many store locations There may be minor return information fr
168. inal command packet with the same FSN The destination device detects the same FSN and recognizes that the message is a duplicate so the associated commands within the packet are not executed a second time However the response packet is again sent back to the source as an acknowledgment in order to preclude undesired multiple executions of the same command To reiterate valid equipment responses to a message require the FSN tag in the command packet This serves as part of the handshake acknowledge routine If a valid response message is absent then the command is re transmitted with the same FSN For a repeat of the same command involving iterative processes such as increasing or decreasing the transmit power level of a DMD2401 modulator the FSN is incremented after each message packet When the FSN value reaches 255 it overflows and begins again at zero The FSN tag is a powerful tool that assures sequential information framing and is especially useful where commands require more than one message packet The full handshake acknowledgment involves a reversal of source and destination ID codes in the next message frame followed by a response code in the OPCODE field of the message packet from the equipment under control If a command packet is sent and not received at its intended destination a timeout condition can occur because the packet originator does not receive a response message On receiving devices slaved to an M amp C computer
169. ion Description AUPC ENABLE DISABLE Enables Disables the AUPC to function locally AUPC Eb No Desired E N of remote modem AUPC MIN LVL Sets minimum output power to be used AUPC MAX LVL Sets maximum output power to be used AUPC DEF LVL Sets default output power to be used The basic AUPC operation is described as follows Assume that the two modems one at each end of the link are set to AUPC operation Only one direction is discussed but the same functions could be occurring in both directions simultaneously Modem A is transmitting to modem under normal conditions and modem has a receive Eb No of 7 5 dB Modem A has been set to an AUPC Eb No on the front panel of 7 5 dB and is currently outputting 15 dBm Next it begins raining at location B and the Eb No drops to 7 0 then 6 8 dB Modem is constantly sending update messages to A and reports the current Eb No When A sees the drop in Eb No it slowly begins to raise the output power and raises it again when it sees further drops As the rain increases in intensity and the Eb No decreases again A continues to increase its power level to compensate and when the rain diminishes and quits it lowers its power level to compensate The operation is therefore a feedback control loop with the added complication of a significant time delay There are safeguards built into the AUPC system First the Modulator has two additional parameters which
170. ional mode to Drop amp Insert when a data rate is not set to a valid D amp I rate will result in the error message DATA RATE OUT OF BOUNDS The mode change will not be allowed 3 Once Drop amp Insert mode has been selected trying to change the data rate to something other than another valid D amp I data rate will result in the error message DATA RATE OUT OF BOUNDS The change will not be allowed The Mod Data Rate should be set according to the number of timeslots to be dropped and the Demod Data Rate should be set according to the number of timeslots to be inserted The following table gives the allowable D amp l data rates based on the number of slots n to be dropped or inserted 065 Rev 3 3 3 9 Operation DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Number of Slots n D amp I Data Rates 64 000 128 000 192 000 256 000 320 000 384 000 512 000 640 000 768 000 960 000 1 024 000 1 280 000 1 536 000 1 920 000 valid with E1 Interface only 3 10 4 Terrestrial Framing Drop Mode Insert Mode The Drop Mode selection and the Insert Mode selection identify the terrestrial data framing format As previously mentioned their selection is influenced by the mod and demod interface types In turn the selection of the terrestrial framing formats influences the satellite channel to terrestrial timeslot mappings in the following manner 1 The selection
171. it 0 Receive Processor Fault Bit 1 Signal Lock Fault Bit 2 Receive Satellite AIS Fault Bit 3 Rx AGC Input Level Fault Bit 4 Reed Solomon Sync Fault Bit 5 Reed Solomon Excessive Errors Fault Bit 6 Reed Solomon Uncorrectable Word Fault Bit 7 Receive Forced Alarm 0 Pass 1 Fail 4 75 User Interfaces lt 1 gt lt 1 gt lt 1 gt 2 3 4 Reserved Latched Alarm 1 Latched Alarm 2 Latched Alarm 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Bit 0 Buffer Underflow Bit 1 Buffer Overflow Bit 2 Buffer Under 10 Bit 3 Buffer Over 90 Bit 4 Receive FPGA Configuration Fault Bit 5 Rx LNB Fault LBST Only Bits 6 7 Spares 0 Pass 1 Fail Bit 0 IF Synthesizer Lock Detect Fault Bit 1 Rx Oversample PLL Lock Detect Fault Bit 2 Buffer Clock PLL Lock Detect Fault Bit 3 Viterbi Decoder Lock Fault Bit 4 Sequential Decoder Lock Fault Bit 5 Rx 2047 Test Pattern Lock Fault Bit 6 External Reference PLL Lock Fault Bit 7 Frame Sync Multiframe Sync Fault 0 Pass 1 Fail Bit 0 Buffer Clock Activity Detect Fault Bit 1 External BNC Activity Detect Fault Bit 2 Rx Satellite Clock Activity Detect Fault Bit 3 External Reference PLL Activity Fault Bits 4 7 Spares 0 Pass 1 Fail Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 5 V Alarm Bit 3 Temperature Fault Bit
172. itions 7 4 Front Panel LED Indicators Unit Power Alarm Event Remote Demodulator Signal Lock Major Alarm Minor Alarm Test Mode Modulator Transmit On Major Alarm Minor Alarm Test Mode 7 2 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Technical Specifications 7 5 Monitor and Control All operating parameters can be monitored and controlled via the front panel display keypad or the RS 485 or RS 232 serial control channel in either terminal or command modes The following modem parameters may be controlled and or monitored Mod 10 mod Mode Closed Net IDR IBS D amp l Transmit and Receive Frequencies Transmit and Receive Offsets Modulator Power Level Modulator On Off Modulator Demodulator Modulation BPSK QPSK OQPSK or 8PSK Modulator Demodulator Data Rates 1 bps steps Modulator Demodulator Code Rates 1 2 2 3 3 4 7 8 Modulator Demodulator Differential Decoders On Off Modulator Demodulator Scrambler On Off Modulator Demodulator Scrambler Selections Modulator Demodulator Data inverted or non inverted Modulator Demodulator Clock Source and Phase Demodulator FIFO Size Delay and Status Demodulator Eb No Demodulator Low Eb No Demodulator Measure BER and Estimated BER Modulator Demodulator Alarms Modem Remote Port Address Data Rate and Enable Disable Modem Test Modes Mod Demod Framing None 96 K 1 15 IBS 1 15 Async 7 6 Options Concatenated Codec A Reed Solomon co
173. k PLL Lock Detect Fault Bit 3 Viterbi Decoder Lock Fault Bit 4 Sequential Decoder Lock Fault Bit 5 Rx 2047 Test Pattern Lock Fault Bit 5 External Reference PLL Lock Fault Bit 7 Frame Sync Fault 0 Pass 1 Fail lt 1 gt 4 Bit 0 Buffer Clock Activity Detect Fault Bit 1 External BNC Activity Detect Fault Bit 2 Rx Satellite Clock Activity Detect Fault Bit 3 External Reference PLL Activity Fault Bits 4 7 Spares 0 Pass 1 Fail lt 1 gt Common Alarm 1 Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 5 V Alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail 1 Alarm 5 Bit 0 IBS IDR Satellite Multiframe Sync Loss Bit 0 IBS IDR Satellite Frame Sync Loss 4 80 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Opcode lt 240Dh gt User Interfaces Bit 2 Spare Bit 3 IBS BER Alarm Bit 3 IBS Prompt Alarm Bit 5 IBS Service Alarm Bits 6 7 Spares 0 Pass 1 Fail Query a Demodulator s Eb No BER Level and AGC Voltage Query response lt 2 gt lt 2 gt lt 2 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 1 gt lt 2437 gt Raw BER Mantissa Corrected BER Mantissa EbNo Raw BER Exponent Corrected BER Exponent BER EbNo Status Input Level Input Level State
174. l BNC Activity Detect Fault Bit 2 Rx Satellite Clock Activity Detect Fault Bit 3 External Reference PLL Activity Fault Bits 4 7 Spares 0 Pass 1 Fail Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 5 V Alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail Bit 0 IBS IDR Satellite Multiframe Sync Loss Bit 1 IBS IDR Satellite Frame Sync Loss Bit 2 Spare Bit 3 IBS BER Alarm Bit 4 IBS Prompt Alarm Bit 5 IBS Service Alarm Bits 6 7 Spares 0 Pass 1 Fail 0 Front Panel 1 Terminal 2 Computer 065 Rev 3 3 4 91 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Opcode lt 2431h gt Query a Module s Installed Options Query response lt 1 gt lt 1 gt lt 1 gt lt 1 gt Opcode lt 26 lt 1 gt Opcode lt 26 lt 1 gt Opcode lt 26 lt 4 gt Frequency Band Duplex Tx FEC Present Rx FEC Present Interface Card Type Other Options 00h Comman Modem Control Mode 16h Comman External Ref Source 1Ah gt Comman EXC Clock 4 92 Bits 0 3 Tx Band Bits 4 7 Rx Band 0 70 MHz 1 140 MHz 2 L band 3 Extended L Band 4 70 MHz High Output 5 70 amp 140 MHz Option 5 to 20 dBm Tx 0 No Mod Demod Only 1 No Demod Mod Only 2 Mod and Demod Bit 0 Tx Viterbi Encoder
175. le s Identification Query response 1 Modem ID DMD2401 Modem 27 Opcode lt 240 gt Query Time Query response lt 1 gt Hour 10 23 1 Minute 0 59 lt gt Second 0 59 TM065 Rev 3 3 4 89 User Interfaces Opcode lt 240Fh gt Opcode lt 2410h gt lt 1 gt lt 1 gt Year Month Day Year Month Day Hour Minute Second DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Query Date Query response 0 99 0 11 10 30 Query Time and Date Query response Opcode lt 240Ah gt Query Time and Date Query Response 4 90 lt 1 gt lt 1 gt lt 1 gt lt 1 gt Modulator Alarm 1 Major Alarm Modulator Alarm 2 Minor Alarm Modulator Common Alarm Demodulator Bit 0 Transmit Processor Fault Bit 1 Transmit Output Power Level Fault Bit 2 Transmit Oversample PLL Lock Fault Bit 3 Composite Clock PLL Lock Fault Bit 4 IF Synthesizer Lock Fault Bit 5 Transmit FPGA Configuration Alarm Fault Bit 6 Transmit Forced Alarm Bit 7 External Reference PLL Lock Fault 0 Pass 1 Fail Bit 0 Terrestrial Clock Activity Detect Fault Bit 1 Internal Clock Activity Detect Fault Bit 2 Tx Sat Clock Activity Detect Fault Bit 3 Tx Data Activity Detect Fault Bit 4 Terrestrial AIS Tx Data AIS Detect Fault Bit 5 Transmit Ext BNC Clock Activity Detect Fault Bit 6 Transmit Reed Solomon Fault Bit 7 Tx BUC
176. ll 50 2047 BER NO SYNC G 703 SYMMETRIC INTERFACE CONTROLS GENERAL TX SETUP RX SETUP 31 Clock 2048000 51 G703 Intf G703BT1AMI 71 Buffer byte 6176 32 Ref Source Internal 72 Buffer msec 32 33 Ext Ref Fq 10 000000 73 Buff Clk Sel RX SAT 74 Rx 6703 Intf G703BT1AMI 42 Tx Ckt ID 43 Rx Ckt ID Enter Selection Number Figure 4 14 G 703 Symmetric Control Terminal Screen 1 Main Menu IF Input dBm 61 9 YV SW F04780 Ver 2 2 Control Mode Terminal Eb No NO SYNC Intf Pres Universal 3 Remote Mode RS 485 Uncorrected SER 2 43E 1 5 V Mon 44 8 4 Remote Addr 32 Corrected BER 7 00E 4 12 V Mon 412 5 Offset Frq Hz 24996 12 V Mon 12 1 6 Center Buffer 2047 Error Cnt NO SYNC Events 2729 Buffer Fill 50 2047 BER NO SYNC UNIVERSAL G 703 SYNCHRONOUS INTERFACE CONTROLS GENERAL TX SETUP RX SETUP 31 Clock 10000000 51 Tx Univ Intf U E1 71 Univ 28 0 1 32 Ref Source Internal 72 Buffer msec 32 33 Ext Ref Fq 10 000000 73 BufClk Sel RX SAT 55 Tx Framing 96kBit IDR 75 Rx Framing 96kBit IDR 56 IDR OH Type Voice 76 IDR OH Type Voice 57 ESC Ch 41 0 77 ESC Ch 1 0 38 ForceTxBackl Normal 58 ESC Ch 42 0 78 ESC Ch 2 0 39 ForceTxBack2 Normal ALARM Mask ALARM Mask 40 ForceTxBack3 Normal 60 1 80 RxBack1 F No 41 ForceTxBack4 Normal 61 2
177. llowing byte applies only if a symmetric G 703 interface card is installed If not set to zero 0 G703T1AMI 1 G703T1B8ZS 2 G703BE1 3 G703UE1 Note The following byte applies to all DMD2401 modems regardless of interface type 0 Normal 1 Swapped Note The following byte applies only if an IDR OR IBS 4 84 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt 1 gt lt 1 gt lt 2 gt lt 2 gt Receive T1 E1 Frame Source Receive IDR Overhead Mode Receive IDR Backward Alarms Mask Interface Type Receive ESC Audio 1 Volume Receive ESC Audio 2 Volume TM065 Rev 3 3 User Interfaces interface card is installed If not set to zero 0 Closed Net Mode 1 IDR Mode 2 IBS Mode 3 Drop amp Insert Mode Note The following byte applies only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode If not set to zero 0 Internal 1 External Note The following byte applies only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode If not set to zero 0 Voice 1 64 K data Bit 0 IDR Backward Alarm 1 Bit 1 IDR Backward Alarm 2 Bit 2 IDR Backward Alarm 3 Bit 3 IDR Backward Alarm 4 Bits 4 7 Spares 0 Mask 1 Allow Note The following byte applies only if an IDR OR IBS interface card is installed and the Receive Mode is set to IDR Mode I
178. lt 1 MultiFrame Lock Fault 2 CRC Lock Fault Valid only in T1 ESF and E1 CRC enabled 3 T1 Yellow Alarm Received 4 E1 FAS Alarm Received 5 E1 MFAS Alarm Received 6 E1 CRC Alarm Received 7 CRC Calculation Fault Bit 0 2 Backward Alarm Received from Satellite Bits 2 7 Spares Force D amp I Terrestrial Backward Alarm to be Trans Revision Number Alarm 1 Status Bytes Decimal Point Implied Bit 0 Receive Processor Fault Bit 1 Signal Lock Fault Bit 2 Receive Satellite AIS Fault Bit 3 Rx AGC Input Level Fault 4 72 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces Bit 4 Reed Solomon Sync Fault Bit 5 Reed Solomon Excessive Errors Fault Bit 6 Reed Solomon Uncorrectable Word Fault Bit 7 Receive Forced Alarm 0 Pass 1 Fail lt gt 2 Bit 0 Buffer Underflow Bit 1 Buffer Overflow Bit 2 Buffer Under 10 Bit 3 Buffer Over 90 Bit 4 Receive FPGA Fault Bit 5 Rx LNB Fault LBST Only Bits 6 7 Spares 0 Pass 1 Fail lt 1 gt 3 Bit 0 IF Synthesizer Lock Detect Fault Bit 1 Rx Oversample PLL Lock Detect Fault Bit 2 Buffer Clock PLL Lock Detect Fault Bit 3 Viterbi Decoder Lock Fault Bit 4 Sequential Decoder Lock Fault Bit 5 Rx 2047 Test Pattern Lock Fault Bit 6 External Reference PLL Lock Fault Bit 7 Frame Sync Multiframe Sync Fault 0 Pass 1 Fail lt gt
179. lt Bit 2 Tx Sat Clock Activity Detect Fault Bit 3 Tx Data Activity Detect Fault Bit 4 Terrestrial AIS Tx Data AIS Detect Fault Bit 5 Transmit Ext BNC Clock Activity Detect Fault Bit 6 Transmit Reed Solomon Fault Bit 7 Tx BUC Fault LBST Only 0 Pass 1 Fail Bit 0 12 V Alarm Bit 1 12 V Alarm Bit2 5 V alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail Bit 0 Transmit Processor Fault Bit 1 Transmit Output Power Level Fault Bit 2 Transmit Oversample PLL Lock Fault Bit 3 Composite Clock PLL Lock Fault Bit 4 IF Synthesizer Lock Fault Bit 5 Transmit FPGA Configuration Alarm Fault Bit 6 Transmit Forced Alarm Bit 7 External Reference PLL Lock Fault 0 Pass 1 Fail Bit 0 Terrestrial Clock Activity Detect Fault Bit 1 Internal Clock Activity Detect Fault Bit 2 Tx Sat Clock Activity Detect Fault Bit 3 Tx Data Activity Detect Fault Bit 4 Terrestrial AIS Tx Data AIS Detect Fault Bit 5 Transmit Ext BNC Clock Activity Detect Fault Bit 6 Transmit Reed Solomon Fault Bit 7 Tx BUC Fault LBST Only 0 Pass 1 Fail Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 2 5 V Alarm Bit 3 Temperature Fault Bit 4 Spare Bit 5 Battery fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail 0 Offline 1 Online 5 V Implied Decimal Point ex 49 4 9
180. ltiframe Sync Fault 0 Pass 1 Fail Bit 0 Buffer Clock Activity Detect Fault Bit 1 External BNC Activity Detect Fault Bit 2 Rx Satellite Clock Activity Detect Fault Bit 3 External Reference PLL Activity Fault Bits 4 7 Spares 0 Pass 1 Fail Bit 0 12 V Alarm Bit 1 12 V Alarm Bit 2 2 5 V Alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail Ignore Unsigned Binary Value Unsigned Binary Value Bytes 1 2 Unsigned Binary Value Raw BER Bytes 1 2 Unsigned Binary Value Corrected BER Unsigned Binary Value 2 Decimal Places Implied Unsigned Binary Value in Hz Pos Neg Indicated Below Bytes 1 2 Unsigned Binary Value Test 2047 BER Byte 3 Unsigned Binary Value Exponent Byte 3 Unsigned Binary Value Exponent Byte 3 Unsigned Binary Value Exponent 0 Offset Frequency Pos 1 Offset Frequency Neg 065 Rev 3 3 4 77 User Interfaces lt 1 gt BER EbNo Status Buffer Percent Full Input Level Input Level State Alarm 5 Backward Alarms Latched Alarm 5 Control Mode Alarm 5 Insert Alarms DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Bit 0 Raw BER and Corrected BER Status 1 Valid Bit 1 Test 2047 BER Status 1 Valid Bits 2 3 EbNo Status 0 EbNo is Invalid 1 EbNo is Valid 2 is Smaller Than Indicated Value 3 E
181. ly independent and meet IESS 308 309 Specifications Once prepped this option can be installed in the field by following an upgrade procedure Note Custom Reed Solomon codes are also available 1 1 2 Sequential Decoding The DMD2401 can also be equipped with an optionally installed sequential decoder The DMD2401 must be prepped for this option in the factory Once prepped the option can be added by installing a daughter card on an existing header Sequential Encoding Decoding can operate with 1 2 3 4 and 7 8 Rates up to data rates of 4 375 Mbps 1 1 3 Asynchronous Overhead Channel The DMD2401 can be equipped with optional asynchronous overhead channel capability The option can be added in the field by installing a single interface PC board The overhead channel is proportional to the data rate Baud Rate is approximately 1 2000 of the Data Rate for Standard IBS and up to a maximum of 19 2 Kbaud for IBS Async 1 2 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Introduction 1 1 4 Customized Options The DMD2401 may be customized for specific customer requirements Most modifications customization can be accomplished by means of firmware software modifications The following are examples of the types of customization available to the user Customized Data Rates Customized Scrambler Descramblers Customized Overhead Framing Structures Customized Modulation Formats Customized Uses for Asynchronous Over
182. m indicates a Transmit Hardware FPGA failure within the modem Pass Fail This alarm indicates that the Modem Synthesizers are not locked to the external reference Pass Fails Allows a Major Tx Alarm to be forced for testing purposes etc Pass Fail Indicates a Receive DSP Hardware failure within the modem Pass Fail Indicates that the demod is unable to lock to a signal Pass Fail Indicates that the Framing Unit is unable to find the expected framing pattern Pass Fail Indicates the Rx IF Synthesizer is not locked This alarm will flash On during certain modem parameter changes TMO65 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces BuffPLL RxLevel Rx FPGA Minor Tx menu Tx Activity menu TerrClk Int Clk BNC Clk TxSatCk Tx Data TerrAlS RS FIFO Minor Rx menu BufUF lw BufOFlw Buf lt 10 Buf gt 90 Pass Fail Indicates that the Buffer Clock PLL is not locked This alarm will flash On during certain modem parameter changes Pass Fail This alarm indicates that the Receive Automatic Gain Control is saturated i e too much signal power is being supplied to the modem Pass Fail This alarm indicates that a Receive FPGA Hardware fault has occurred Pass Fail Indicates no Terrestrial Clock activity Pass Fail Indicates no SCT Clock activity Pass Fail Indicates no activity on the Ext
183. male D Connector J17 Pin Number Signal Description Direction 1 ESCAUDTX1A Tx Data 64K A Input 2 ESCAUDRX 1 Rx Data 64K A Output 3 GND Ground Ground 4 ESCAUDTX2B Tx Clock 64K B Output 5 ESCAUDRX 2B Rx Clock 64K B Output 6 ESCAUDTX1B Tx Data 64K B Input 7 ESCAUDRX 1B Rx Data 64K B Output 8 ESCAUDTX2A Tx Clock 64K A Output 9 ESCAUDRX2A Rx Clock 64K A Output 065 Rev 3 3 5 33 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Table 5 32 Asynchronous Interface 9 Pin Female D Connector J17 Pin Number Description Direction TX 485 B Transmit Data RS485 TXD 232 Transmit Data RS232 RXD 232 Receive Data RS232 GND Ground NC Not Connected RX 485 A Receive Data 485 RX 485 B CTS Receive Data 485 TX 485 A Transmit Data 485 RTS Request to Send 5 9 Async Port Configuration Switches The switch settings listed below in Tables 5 33 through 5 37 are used to configure the Async Port for the following applications The DIP Switches are located on the inside of the unit on the Async Card with the exception of the AS 3771 Daughter Card and the AS 4803 Universal Daughter Card discussed below The user must remove the top cover of the unit to access these switches Table 5 33 Async Port DIP Table 5 34 Async Port DIP Switch Settings RS 4
184. med to have occurred no more than seven 7 working days before the first date on which a notice of failure is received by Radyne ComStream Corporation Under no circumstances shall any warranty exceed the period stated above unless expressly agreed to in writing by Radyne ComStream Corporation Liability Limitations This warranty is expressly in lieu of and excludes all other express and implied warranties Including but not limited to warranties of merchantability and of fitness for particular purpose use or applications and all other obligations or liabilities on the part of Radyne ComStream Corporation unless such other warranties obligations or liabilities are expressly agreed to in writing by Radyne ComStream Corporation All obligations of Radyne ComStream Corporation under this warranty shall cease in the event its products or parts thereof have been subjected to accident abuse alteration misuse or neglect or which have not been operated and maintained in accordance with proper operating instructions 065 Rev 3 3 iii Warranty Policy DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem In no event shall Radyne ComStream Corporation be liable for Incidental consequential special or resulting loss or damage of any kind howsoever caused Radyne ComStream Corporation s liability for damages shall not exceed the payment if any received by Radyne ComStream Corporation for the unit or product or service furnished or to be fur
185. medies shall be governed by the terms stated or referenced in this warranty In warranty repaired or replacement products or parts are warranted only for the remaining unexpired portion of the original warranty period applicable to the repaired or replaced products or parts Repair or replacement of products or parts under warranty does not extend the original warranty period Warranty Coverage Limitations The following are expressly not covered under warranty 1 Any loss damage and or malfunction relating in any way to shipping storage accident abuse alteration misuse neglect failure to use products under normal operating conditions failure to use products according to any operating instructions provided by Radyne ComStream Corporation lack of routine care and maintenance as indicated in any operating maintenance instructions or failure to use or take any proper precautions under the circumstances 2 Products items parts accessories subassemblies or components which are expendable in normal use or are of limited life such as but not limited to bulbs fuses lamps glassware etc Radyne ComStream Corporation reserves the right to revise the foregoing list of what is covered under this warranty Warranty Replacement and Adjustment Radyne ComStream Corporation will not make warranty adjustments for failures of products or parts which occur after the specified maximum adjustment period Unless otherwise agreed failure shall be dee
186. n Female Connector Refer to Table 5 5 for the connector pinouts 5 4 8 ASYNC DATA J8 The Asynchronous Data J8 is the data interface for asynchronous data It uses RS 232 and RS 485 Interfaces and is a 9 Pin Female D Connector Refer to Table 5 9 for the connector pinouts Refer to Section 5 8 for configuration switch settings Table 5 9 Async Data Port 9 Pin Female D Connector 48 Pin Number Signal Description Direction 1 485 Transmit Data RS 485 Input 2 TXD 232 Transmit Data RS 232 Input 3 RXD 232 Receive Data RS 232 Output 5 GND Ground 4 NC NC 9 RX 485 A Receive Data RS 485 Output 8 RX 485 B CTS Receive Data RS 485 Output 6 485 Transmit Data RS 485 Input 7 RTS Request to Send Input 5 4 9 DATA INTERFACE J9 The Data Interface Port J9 is used for the Synchronous Data Interface and uses RS 422 RS 232 and V 35 Interfaces It is 37 Pin Female Connector Refer to Table 5 6 for the connector pinouts 5 8 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces 5 5 DMD2401 IBS J10 J8 J7 46 J5 14 Ja J45 J3 J2 J1 O EXT REF IN ROVIFIN MADE IN USA Figure 5 3 DMD2401 Satellite Modem w IBS 5 5 1 RCV IF IN J1 The Receive IF Input J1 is the 50 90 MHz and 100 180 MHz Demodulator IF Input 5 5 2 EXT REF IN J
187. n Menu IF Input dBm 40 2 9 V 2 Control Mode Terminal Eb No gt 20 00 3 Remote Mode RS 485 Uncorrected SER 0 E 5 4 Remote Addr 32 Corrected BER 0 12 Offset 2 8 6 Center Buffer 2047 Error Cnt NO SYNC Buffer 1115 49 2047 BER NO SYNC D amp I GENERAL TX SETUP 31 EXC Clock 10000000 51 G703 Intf U E1 32 Ref Source Internal 33 Ext Ref Fq 10 000000 55 Tx Framing 1 15 5 56 TxAsync Port RS 485 38 ForceTxBack Normal 42 Tx Ckt ID 43 Rx Ckt ID ALARM Mask 64 TxBack P No Enter Selection Number 80 81 82 83 User Interfaces SW F04780 Ver 2 Intf Pres D amp I G 703 5 V Mon 44 8 12 V Mon 12 4 12 V Mon c 12 1 Events 4 29 SETUP 6703 Intf U E1 Buffer msec 32 BufClk Sel RX SAT Rx Framing 1 15 IBS RxAsync Port RS 485 ALARM Mask Prompt P No Service P No BER No RxBack P No Figure 4 10 D amp 1 G 703 Interface Control Terminal Screen 1 Main Menu IF Input dBm 40 2 9 V SW F04780 Ver 2 2 Control Mode Terminal Eb No NO SYNC Intf Pres D amp I G 703 3 Remote Mode RS 485 Uncorrected SER 0 E 5 5 V Mon 44 8 4 Remote Addr 32 Corrected BER 0 12 12 12 5 Offset Frq Hz 18 12 V Mon 12 1 6 Center Buffer 2047 Error Cnt NO SYNC Events 429 Buffer 1115 49 2047 BER NO SYNC Closed Net G 703 INTERFACE CONTROLS GENERAL TX SETUP
188. nished as the case may be which is the subject of claim or dispute Statements made by any person including representatives of Radyne ComStream Corporation which are inconsistent or in conflict with the terms of this warranty shall not be binding upon Radyne ComStream Corporation unless reduced to writing and approved by an officer of Radyne ComStream Corporation Warranty Repair Return Procedure Before a warranty repair can be accomplished a Repair Authorization must be received It is at this time that ComStream Corporation will authorize the product or part to be returned to the Radyne ComStream Corporation facility or if field repair will be accomplished The Repair Authorization may be requested in writing or by calling Radyne ComStream Corporation 3138 E Elwood St Phoenix Arizona 85034 USA ATTN Customer Support Phone 602 437 9620 Fax 602 437 4811 Any product returned to Radyne ComStream Corporation for examination must be sent prepaid via the means of transportation indicated as acceptable to Radyne ComStream Corporation Return Authorization Number must be clearly marked on the shipping label Returned products or parts should be carefully packaged in the original container if possible and unless otherwise indicated shipped to the above address Non Warranty Repair When a product is returned for any reason Customer and its shipping agency shall be responsible for all damage resulting from impr
189. nput 8 Receive Timing A Output 26 RT B Receive Timing B Output 9 CS A Clear to Send A Output 14 Mod Fault Open Collector Output 33 DF Demod Fault Open Collector Output 27 CS B Clear to Send B Output 11 Data A Output 29 Data Output 13 RR A Receiver Ready A Output 31 RR B Receiver Ready B Output 3 BAL EXC A External Clock A Input 21 BAL External Clock Input 16 RX 0 A Receive Octet A Output 34 RX 0 B Receive Octet B Output 17 Terminal Timing A Input 35 TT B Terminal Timing B Input 1 19 20 37 GND Signal Ground 065 Rev 3 3 5 13 Electrical Interfaces 5 5 10 IBS ALARMS J14 The IBS Alarms Interface Port J14 is a 25 Pin Female D Connector Refer to Table 5 12 for connector pinouts DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Table 5 12 IBS Alarms Interface 25 Pin Female D J14 Pin Number Signal Description Direction 1 GND Ground 2 IBS Prompt 1NO Prompt Alarm Out 1 Output 3 NC Not Connected 4 IBS Service 2 Service Alarm Out 2 Output 5 Not Connected 6 Not Used 7 GND Ground 8 Not Used 9 No Connection 10 Not Used 11 Not Used
190. ocal checksum on all information within the packet excluding the SYN character and the lt CHECKSUMs fields If this checksum matches the packet lt CHECKSUMs the receiver processes the packet and responds to the packet sender with a valid response acknowledgment packet If the checksum values do not match the receiver replies with a negative acknowledgment NAK in its response frame The response packet is therefore either an acknowledgment that the message was received correctly or some form of a packetized NAK frame If the sender receives a valid acknowledgment response packet from the receiver the lt FSN gt increments and the next packet is transmitted as required by the sender However if a NAK response packet is returned the sender re transmits the original information packet with the same embedded lt FSN gt 065 Rev 3 3 4 43 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem If an acknowledgment response packet or a NAK packet is lost corrupted or not issued due to an error and is thereby not returned to the sender the sender re transmits the original information packet but with the same lt FSN gt When the intended receiver detects a duplicate packet the packet is acknowledged with a response packet and internally discarded to preclude undesired repetitive executions If the M amp C computer sends a command packet and the corresponding response packet is lost due to a system or internal error
191. odulator 4 95 4 4 13 5 Default Values Demodulator 4 97 4 5 Terminal Port User Interface 4 99 Section 5 Electrical Interfaces 5 0 DMD2401 Connections 5 1 AC Power Input Switch 5 1 5 1 5 2 DC Power Input Switch 5 3 DMD2401 with RS 422 449 Data Interface 5 3 1 RCV IF IN J1 5 2 5 3 2 EXT REF J2 5 3 3 EXT CLK J3 5 3 4 XMIT IF OUT J4 5 3 5 TERMINAL J5 5 3 6 ALARM J6 065 Rev 3 3 Table of Contents DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 3 7 REMOTE J7 5 4 5 2 9 DATA INTERFACE J9 5 4 5 2 9 1 RS 232 Adapter to J9 5 5 5 2 9 2 V 35 Adapter to J9 5 6 5 4 DMD2401 with RS 422 449 Data Interface 5 4 1 ROV IF IN J1 5 7 5 7 5 4 2 EXT REF IN J2 5 7 5 4 3 EXT CLK J3 5 7 5 4 4 XMIT IF OUT J4 5 7 5 4 5 TERMINAL J5 5 7 5 4 6 ALARM J6 5 8 5 4 7 REMOTE J7 5 8 5 4 8 ASYNC DATA J17 5 8 5 4 9 DATA INTERFACE J9 5 8 5 5 DMD2401 IBS 5 9 5 5 1 RCV IF IN 5 9 5 5 2 EXT REF IN J2 5 9 5 5 3 EXT CLK J3 5 9 5 5 4 XMIT IF OUT 94 5 9 5 5 5 TERMINAL J5 5 9 5 5 6 ALARM J6 5 10 5 5 7 REMOTE J7 5 10 5 5 8 SWITCH INTERFACE J8 5 10 5 5 9 SYNC DATA J10 5 13 5 5 10 IBS ALARMS J14 5 14 5 5 11 ASYNC J15 5 15 5 6 DMD
192. odule Figure 5 1 is located at the left side of the unit as viewed from the rear Primary power applied to the port with the supplied power cable is 10 240 VAC 50 60 Hz Integrated into the power entry module is the Power On Off Rocker Switch Power consumption for the unit is 1 A The power cord connector assembly is a supplied item A chassis ground connection size 10 32 thread stud is located to the lower right of the AC Power Cord 5 2 DC Power Input Switch The Optional DC Power Input and Switch Figure 5 1 is available for all DMD2401 products The unit may be powered from a 36 75 VDC source with a maximum unit power consumption of 3 A Refer to Table 5 1 for pinouts Table 5 1 DC Power I mer aA 8 Ground 065 Rev 3 3 5 1 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 3 DMD2401 with RS 422 449 Data Interface Refer to Figure 5 1 for DC pinouts ya e N pe 3A MAX e N Optional DC Power ve pc Power g 36 75 Tu J9 J7 J J5 J4 J3 J2 EXT REF iN RCV IF IN TERMINAL XMT IF OUT EXTELK 5 Ieee O olo XL DATA INTERFACE Figure 5 1 DMD2401 Satellite Modem w RS 422 449 Data Interface 5 3 1 RCV IF IN J1 The Receive IF Input J1 is the 50 90 MHz and 100 180 MHz Demodulator IF Input 5 3 2 EXT REF IN J2 The External Reference Input Po
193. om the remotes acknowledging receipt Another broadcast application could be transmitting background music from a central location to many store sites In this case there would be no return path The topology of the network in both of these broadcast examples would typically be called a Star network As shown in Figure 3 2 the shape of the configuration is drawn with the central Hub as the center of the star and the remotes as points of the star In both cases the transmit frequency and other parameters are shared by the receiver of all the remotes Figure 3 2 Star Network Configuration 3 2 3 DAMA Demand Assigned Multiple Access Suppose that a telephone network with a virtual switch between modems carrying digitized voice information is to be simulated We might use a central computer to assign a pair of frequencies for any conversation and send this connection information to the proper sites to set up the connection In this application a new network configuration is usable That is a Mesh network where any of the voice modems at any site can be programmed to link with any other modem The resulting link diagram looks like a mesh of interconnects Since the frequencies can be assigned on demand the network is then called Demand Assigned Multiple Access or DAMA 3 2 4 TDMA Time Division Multiple Access Remote Site Application In a TDMA network the central Hub continually transmits a stream of outbound data
194. omputer resident Monitor and Control software used in satellite earth station equipment such as Modems Redundancy Switches Multiplexers and other ancillary support gear Communication is bi directional and is normally established on one or more full duplex 9600 baud multi drop control buses that conform to EIA Standard RS 485 If a single device is placed on a single control bus then the control bus may conform to EIA Standard RS 232 Each piece of earth station equipment on a control bus has a unique physical address which is assigned during station setup configuration or prior to shipment Valid decimal addresses on one control bus range from 032 to 255 for a total of up to 224 devices per bus Address 255 of each control bus is usually reserved for the M amp C computer 4 4 2 Protocol Wrapper The Radyne COMMSPEC is byte oriented with the Least Significant Bit LSB issued first Each data byte is conveyed as mark space information with one mark comprising the stop data When the last byte of data is transmitted a hold comprises one steady mark the last stop bit To begin or resume data transfer a space 00h substitutes this mark This handling scheme is controlled by the hardware and is transparent to the user A pictorial representation of the data and its surrounding overhead may be shown as follows 065 Rev 3 3 4 35 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 51 52 Bo Bs Bs Be B 51 52
195. oper packing and handling and for loss in transit not withstanding any defect or nonconformity in the product By returning a product the owner grants Radyne ComStream Corporation permission to open and disassemble the product as required for evaluation In all cases Radyne ComStream Corporation has sole responsibility for determining the cause and nature of failure and Radyne ComStream Corporation s determination with regard thereto shall be final iv 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Record of Revisions DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Installation and Operation Manual 065 Record of Revisions Radyne ComStream Corporation is constantly improving its products and therefore the information in this document is subject to change without prior notice Radyne ComStream Corporation makes no warranty of any kind with regard to this material Including but not limited to the implied warranties of merchantability and fitness for a particular purpose No responsibility for any errors or omissions that may pertain to the material herein is assumed Radyne ComStream Corporation makes no commitment to update nor to keep current the information contained in this document Radyne ComStream Corporation assumes no responsibility for use of any circuitry other than the circuitry employed in Radyne ComStream Corporation systems and equipment Revision Date Reason for Change Level 1 0 7 18
196. rected SER NO SYNC 5 V Mon 44 8 4 Remote Addr 32 Corrected BER NO SYNC 12 V Mon 412 5 Offset Frq Hz 24997 12 V Mon 12 1 6 Center Buffer 2047 Error Cnt NO SYNC Events 37 Buffer 1115 49 2047 BER NO SYNC 22222370 UNIVERSAL G 703 SYNCHRONOUS INTERFACE CONTROLS GENERAL TX SETUP RX SETUP 31 EXC Clock 10000000 51 Tx Terr Intf RS 422 71 Rx Terr Intf RS 422 32 Ref Source Internal 52 Tx Clock Sel SCTE Ext 72 Buffer msec 32 33 Ext Ref Fq 10 000000 53 Tx Clock Pol Auto 73 BufClk Sel RX SAT 54 SCT Source Internal 74 Buff Clk Pol Normal 55 Tx Framing None 75 Rx Framing None 42 ID i 43 Rx ID Enter Selection Number Figure 4 22 Closed Net RS 422 V 35 RS 232 Interface Control Terminal Screen 4 4 Remote Port User Interface The Remote Port of the DMD2401 allows for complete control and monitor functions via an RS 485 or RS 232 Front Panel Configurable Serial Interface Control and status messages are conveyed between the DMD2401 and the subsidiary modems and the host computer using packetized message blocks in accordance with a proprietary communications specification This communication is handled by the Radyne Link Level Protocol RLLP which serves as a protocol wrapper for the M amp C data Complete information on monitor and control software is contained in the following sections 4 4 1 Protocol Structure The Communications Specification COMMSPEC defines the interaction of c
197. rface type is selected a data rate entry of 1920000 is valid and will be allowed TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Operation 3 10 2 Mode The operational mode of the modem often determines which additional menus and displays are available for use by the operator The D amp l mode specific menus will not be displayed unless the operational mode of the modem is set to D amp l Therefore the next step in configuring the modem should be to set the operational mode to D amp l At this point the D amp l specific menus in the Interface section will become available and will remain available until the operational mode of the modem is changed to something other than D amp l When the operational mode is changed to something other than D amp l the D amp l specific menus will automatically disappear Mode affects the Drop amp Insert function by affecting the Data Rate in the following manner 1 In Closed Net mode any valid IDR IBS or Drop amp Insert data rate may be entered 2 In Drop amp Insert Mode only valid D amp l data rates may be entered The entry of an invalid rate will result in the error message DATA RATE OUT OF BOUNDS 3 10 3 Data Rate Data Rate also affects the Drop and Insert function in the following ways 1 It determines the number of Satellite Channels that will be displayed in the Edit Maps 2 It contributes to the operational mode selection process Trying to change the operat
198. rity Tx BB Sends Tx Data to the Receive Input to the BB Card Rx BB Sends Rx Data from the Modem Card to the Tx Data Input to the Modem Card Tx Rx BB Enables both IF Loopback loops the IF Output of the Modulator to the IF Input of the Demodulator Carrier CW Dual Offset Normal CW Causes the Modulator to output pure carrier Dual Causes a double sideband output Offset Causes a single sideband output Normal Causes the Modulator to output normal modulation TxForce Alrm No Yes Allows a Major Tx Alarm to be forced for testing purposes etc RxForce Alrm No Yes Allows a Major Rx Alarm to be forced for testing purposes etc Remote Port Normal Test Test sends a constantly looping data packet through the Remote Port that displays Testing LED Test Normal Test Allows the user to test Front Panel LED function 4 3 Terminal Mode Control The DMD2401 Terminal Mode Control allows the use of an external terminal or computer to monitor and control the modem from a full screen interactive presentation operated by the modem itself No external software is required other than VT100 terminal emulation software e g Procomm for a computer when used as a terminal The control port is normally used as an RS 232 connection to the terminal device The RS 232 operating parameters can be set using the modem front panel and stored in EEPROM for future use 065 Rev 3 3 4 23 User
199. rt J2 is used for injecting an external reference frequency into the modem The DMD2401 Master Oscillator is locked to this source All internally generated frequencies within the modem will attain the stability of the applied external reference The external reference must meet the following parameters Frequency 10 MHz 9 MHz 5 MHz 2 048 MHz or 1 024 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 3 3 EXT CLK J3 The External Clock Port J3 is used for injecting an external data clock into the modem The data symbol clocks may then be selected to be locked to this source The external clock must meet the following requirements Frequency 9600 Hz to 2 048 MHz Amplitude 0 2 Vp p to 5 Vp p Type Sinewave or Squarewave 5 3 4 XMIT IF OUT J4 The Transmit IF Output Port J4 is the 50 90 MHz and 100 180 MHz Modulator IF Output 5 3 5 TERMINAL J5 The Terminal Port J5 pinouts are listed below in Table 5 2 5 2 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces Table 5 2 RS 232 Terminal Port 9 Pin Female D Connector J5 Pin Number Signal Description Direction Transmit Data Receive Data Ground 5 3 6 ALARM J6 The modem has two Form C Dry Contact Alarm Relays onboard and an Alarm Connector located on the rear panel the 9 pin male D sub connector J6 The two relays are designated Modulator Alarm and Demod
200. rted by DSP Bit 7 Spare Bit 0 Backward Alarm Received from Drop Terrestrial Bits 2 7 Spares Force D amp I Satellite Backward Alarm to be transmitted Edit mapping of Satellite channels to dropped Terrestrial Time 1 1 Revision Number Alarm 1 Major Alarm Alarm 2 Minor Alarm Common Alarm Status Bytes Decimal Point Implied Bit 0 2 Transmit Processor Fault Major Alarm Bit 1 Transmit Output Power Level Fault Bit 2 Transmit Oversample PLL Lock Fault Bit 3 Transmit Composite Clock PLL Lock Fault Bit 4 IF Synthesizer Lock Fault Bit 5 Transmit FPGA Configuration Fault Bit 6 Transmit Forced Alarm Bit 7 External Reference PLL Lock Fault 0 Pass 1 Fail Bit 0 Terrestrial Clock Activity Detect Fault Minor Alarm Bit 1 Internal Clock Activity Detect Fault Bit 2 Tx Sat Clock Activity Detect Fault Bit 3 Tx Data Activity Detect Fault Bit 4 Terrestrial AIS Tx Data AIS Detect Fault Bit 5 Transmit Ext BNC Clock Activity Detect Fault Bit 6 Transmit Reed Solomon Fault Bit 7 Tx BUC Fault LBST Only 0 Pass 1 Fail Bit 0 12 V Alarm 4 52 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt 2 gt lt 4 gt Latched Alarm 1 Major Alarm Latched Alarm 2 Minor Alarm Latched Common Alarm Online Flag 5V Voltage
201. s the T value is calculated from N and K Unsigned Binary 4 or 8 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt 2 gt Scrambler Control Scrambler Type Transmit Power Level Differential Encoder Carrier Control Carrier Selection Spectrum Operating Mode Clock Control Clock Polarity SCT Source Alarm 1 Mask Major Alarm Alarm 2 Mask Minor Alarm Common Alarm Mask 065 Rev 3 3 User Interfaces 0 Off 1 2 On 0 None 1 IBS Scrm 2 V35 IESS 3 V35 4 35 EFDATA 7 Reed Solomon Scrm 8 V35 EFRS Signed value 50 to 300 5 0 to 30 0 dBm Implied Decimal Point 0 Off 1 On 0 Off 1 On 2 Auto 3 VSat 4 RTS 0 Normal 1 CW 2 Dual 3 Offset 0 Normal 1 Inverted 0 Normal 1 2047 Test 0 Internal SCT 1 External SCTE 0 Normal 1 Inverted 2 Auto 0 Internal 1 SCR 2 Ext BNC Bit 0 Transmit Processor Fault Bit 1 Transmit Output Power Level Fault Bit 2 Transmit Oversample PLL Lock Fault Bit 3 Composite Clock PLL Lock Fault Bit 4 IF Synthesizer Lock Fault Bit 5 Transmit FPGA Configuration Alarm Fault Bit 6 Transmit Forced Alarm Bit 7 External Reference PLL Lock Fault 0 Mask 1 Allow Bit 0 Terrestrial Clock Activity Detect Fault Bit 1 Internal Clock Activity Detect Fault Bit 2 Tx Sat Clock Activity Detect Fault Bit 3 Tx Data Activity D
202. smit mode parameter is set to IDR Mode If an IDR OR IBS interface card is not installed set to zero If an IDR OR IBS interface card is installed but the transmit mode parameter is not set to IDR mode these bytes can be set to any valid values but will be ignored 20 to 10 signed binary value in dB Opcode lt 2602h gt Command a Modulator s Frequency Note The following command will also turn the carrier off to protect the satellite lt 4 gt Frequency Unsigned Binary Value in Hz Opcode lt 2604h gt Command a Modulator s Data Rate Note The following command will also turn the carrier off to protect the satellite lt 4 gt Data Rate Unsigned Binary Value in BPS Opcode lt 2606h gt Command a Modulator s Modulation Type Note The following command will also turn the carrier off to protect the satellite lt gt Modulation Type 0 QPSK 1 BPSK 2 8PSK 4 OQPSK lt 2607 gt Convolutional Encoder Modulator s Convolutional Encoder Note The following command will also turn the carrier off to protect the satellite 0 None 1 Viterbi 1 2 Rate 3 Viterbi 3 4 Rate 5 Viterbi 7 8 Rate 7 Sequential 1 2 Rate 9 Sequential 3 4 Rate 11 Sequential 7 8 Rate 14 Trellis 20 TPC 0 7932D 21 TPC 0 4953D Opcode lt 2608h gt Comman lt 1 gt Differential 4 64 d a Modulator s Differential Encoder 0 Off 1 On TM065 Rev 3 3 D
203. ss of satellite data Pass Fail No Yes Indicates the status of the Reed Solomon Decoder Lock Pass Fail No Yes Indicates the status of the Reed Solomon De interleaver word fault Pass Fail No Yes Indicates the status of the Reed Solomon uncoded word fault Pass Fail No Yes Indicates that a Prompt Maintenance Alarm is generated as defined in Rec ITU T6 803 Pass Fail No Yes Indicates that a Service Alarm is generated as defined in Rec ITU T6 803 Pass Fail No Yes Fail indicates BER of 1 x 10 greater from satellite input Pass Fail No Yes Indicates the power supply voltage is out of range TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces 12Volt Mask 5Volt Mask Temp Mask IntFPGA Mask Battery Mask RAM ROM Mask M amp CProc Mask Ref PLL Mask Ext EXC Mask Ext Ref Mask D Card Mask Backward Alr menu RxBack Mask TxBack Mask Force Back Clear Alarms 065 Rev 3 3 Pass Fail No Yes Indicates the power supply voltage is out of range Pass Fail No Yes Indicates the power supply voltage is out of range Pass Fail No Yes Fail indicates that internal temperature of the modem is out of range Pass Fail No Yes Indicates a hardware failure on the Interface Card Pass Fail No Yes Indicates that the Internal Clock Battery is low Pass Fail No Yes Indicates an M amp C Memory fault
204. sync Terr Interface Type 1 Async Framing 1i Async Baud Rate lt gt Async Port Type lt 1 gt Terr Intf Type O No Framing Async Off 1 IBS Framing Async On 2 IBS Framing Async Off 0 1200 1 2400 2 4800 3 9600 4 19200 5 50 6 110 7 300 8 600 0 RS 232 1 RS 485 0 V 35 1 RS 422 2 RS 232 lt 2631h gt Comman CTS Control Opcode lt gt d Modulator s CTS Mode and Polarity Bit 0 Polarity 0 Normal 1 Inverted Bits 1 and 2 Mode 0 Always On factory default 1 CTS reflects the state of the RTS Input 2 CTS reflects CTS Level Remote Command Bit 3 7 Spares lt 2632h gt Comman CTS Level Opcode lt 2637h gt Comman lt 1 gt Carrier Delay 4 4 13 2 DMD2401 Demod Opcode lt 2401h gt Number of Nonvol bytes 065 Rev 3 3 d Modulators CTS Level Query Response Bit 0 Level 0 Off 1 On only valid if CTS Control Mode bits are equal to 2 Bits 1 7 Spares id a Module s Carrier Delay Unsigned Binary Value in seconds 0 255 ulator Query a Modulator s Configuration and Status Query Response y CAUTION See Paragraph B 6 This is the number of configuration bytes and is an offset to the start of the status block 4 67 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Configuration Bytes lt 4 gt Frequency Binary Value 1Hz
205. t gt Buffer Clock 0 External lt 00 gt lt gt Buffer Clock 0 Normal lt 00 gt Polarity lt 1 gt Operating Mode 0 Normal lt 00 gt lt gt Alarm 1 Mask No Alarms Masked lt FF gt lt gt Alarm 2 Mask No Alarms Masked lt FF gt lt gt Alarm 3 Mask No Alarms Masked lt FF gt lt gt Alarm 4 Mask No Alarms Masked lt FF gt lt gt Common Alarm 1 Alarms Masked lt FF gt lt gt Reserved lt 00 gt 065 Rev 3 3 4 97 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem lt gt BER Measure 10 Bits lt 05 gt Period lt 24 gt Rx Circuit ID 24 ASCII Spaces 20 20 20 20 20 lt 20 gt 20 20 lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 1 gt Rx Terrestrial 0 Disabled lt 00 gt Loopback lt 1 gt Rx Baseband 0 Disabled lt 00 gt Loopback lt 1 gt Rx IF Loopback 0 Disabled lt 00 gt lt gt CD Clock Control 0 Receiver Allows Output lt 00 gt Clock When CD False lt 1 gt Data Invert 0 Normal lt 00 gt 1 Async Mode 0 Async Off 00 lt gt Async Baud Rate 3 9600 lt 03 gt lt 1 gt Async Port 0 RS 232 lt 00 gt lt 1 gt Async Terrestrial RS 422 lt 00 gt Interface Type
206. t Backward Alarm 4 lt 1 gt Interface lt 02 gt lt 2 gt Transmit ESC 1 20 dB lt FFDF gt Volume lt 2 gt Transmit ESC 2 20 dB lt FFDF gt Volume 4 96 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 4 4 13 5 Default Values Demodulator Opcode lt 2A00h gt Command a Demodulator s Configuration User Interfaces lt 4 gt Frequency 70 000 000 Hz lt 04 gt lt 2C gt lt 1D gt lt 80 gt lt 4 gt Data Rate 2 048 000 BPS lt 00 gt lt 1F gt lt 40 gt lt 00 gt lt 1 gt Sweep Boundary 25 kHz lt 19 gt lt 4 gt External 30 000 000 Hz lt 01 gt lt C9 gt lt C3 gt lt 80 gt Reference lt gt Ext Reference 0 Internal lt 00 gt Source 1 Input Level Limit 60 dBm 60 lt 1 gt Demodulation 0 QPSK lt 00 gt Type lt gt Convolutional 1 Viterbi 7 Rate lt 01 gt Decoder 1 Reed Solomon 0 Disable 00 1 Reed Solomon N 126 7E lt gt Reed Solomon 112 lt 70 gt lt gt Reed Solomon 0 lt 00 gt lt 1 gt RS Interleaver 4 lt 04 gt Depth lt gt Differential 1 On lt 01 gt Decoder lt gt Descrambler 1 Enable lt 01 gt Control lt 1 gt Descrambler 2 V35_IESS lt 02 gt Type lt 1 gt Spectrum 0 Normal lt 00 gt lt 4 gt Buffer Size 32 msec lt 00 gt lt 01 gt 256 Bytes lt 00 gt lt 04 gt l
207. t 1 gt DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Bit 5 Transmit Ext BNC Clock Activity Detect Fault Bit 6 Transmit Reed Solomon Fault Bit 7 Tx BUC Fault LBST Only 0 Pass 1 Fail Bit 0 12 V Alarm Bit 1 12 V Alarm Bit2 5 V alarm Bit 3 Temperature Fault Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Pass 1 Fail Opcode lt 2433h gt lt 1 gt Opcode lt 2601 gt RTS Level Comman lt 4 gt lt 3 gt lt 4 gt lt 4 gt lt 1 gt 4 58 Frequency Reserved Data Rate EXC Clock Modulation Type Convolutional Encoder Reed Solomon Reed Solomon N Reed Solomon K Reed Solomon T RS Interleaver Depth Query a Modulator s RTS Level Query Response Bit 0 Level 0 Off 1 On Bits 1 7 Spares d a Modulator s Configuration Unsigned Binary Value in Hz Set to Zero Unsigned Binary Value in BPS Unsigned Binary Value in Hz 0 QPSK 1 BPSK 2 8PSK 4 OQPSK Note The following command will also turn the carrier off to protect the satellite 0 None 1 Viterbi 1 2 Rate 3 Viterbi 3 4 Rate 5 Miterbi 7 8 Rate 7 Sequential 1 2 Rate 9 Sequential 3 4 Rate 11 Sequential 7 8 Rate 14 Trellis 2 3 20 TPC 0 7932D 21 TPC 0 4953D 0 Disable 1 Enable Unsigned Binary Unsigned Binary Note This byte is always set to zero a
208. t 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt gt Tx Terrestrial 0 Disabled lt 00 gt 065 Rev 3 3 4 95 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Loopback lt 1 gt Tx Baseband 0 Disabled lt 00 gt Loopback lt 1 gt Reserved lt 00 gt lt 1 gt Reserved lt 00 gt lt 1 gt Data Invert 0 Normal lt 00 gt lt 1 gt Async Mode 0 Async Off lt 00 gt lt 1 gt Async Baud Rate 3 9600 lt 03 gt lt 1 gt Async Port 0 RS 232 lt 00 gt lt 1 gt Terrestrial 0 RS 422 lt 00 gt Interface Type lt gt Multiprotocol 0 RS 422 00 Interface Type lt 1 gt G 703 Interface 0 G703T1AMI lt 00 gt Type lt 1 gt BPSK Symbol 0 Normal lt 00 gt Pairing lt gt IDR or IBS 1 Not Masked lt 01 gt Daughter Card Fault Mask lt 1 gt Transmit 0 Closed Net lt 00 gt lt 1 gt IDR Backward No Alarms Masked lt FF gt Alarm Mask lt 1 gt IDR Force Normal lt 02 gt Backward Alarm 1 lt 1 gt IDR Force Normal lt 02 gt Backward Alarm 2 lt 1 gt IDR Force Normal lt 02 gt Backward Alarm 3 lt 1 gt IDR Force Normal lt 02 g
209. ta A Input 2 GND Ground 9 SD B Send Data B Input 7 BAL External Clock A Input 8 BAL External Clock Input 3 RD A Receive Data A Output 4 GND Ground 11 RD B Receive Data B Output 12 DDO A Drop Data Out A Output 5 DDO B Drop Data Out B Output 13 IDI A Insert Data In A Input 6 IDI B Insert Data In B Input 14 MOD FLT Mod Fault Open Collector Output 15 DMD FLT Demod Fault Open Collector Output 5 8 16 ESC 64K Data Voice Async 917 J17 serves different purposes depending upon configuration IDR Mode 64 Data or Voice depending upon Front Panel selection IBS or D amp I Mode Async Port It is a 9 Pin Female D Connector Refer to Tables 5 30 through 5 32 for connector pinouts 5 32 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces Table 5 30 ESC AUDIO 9 Pin Female D Connector J17 Pin Number Description Direction ESCAUDTX 1A Tx Audio 1A Input ESCAUDRX 1A Rx Audio 1A Output GND Ground ESCAUDTX 2B Tx Audio 2B Input ESCAUDRX 2B Rx Audio 2B Output ESCAUDTX 1B Tx Audio 1B Input ESCAUDRX 1B Rx Audio 1B Output ESCAUDTX 2A Tx Audio 2A Input O OINI OD 01 OJN ESCAUDRX 2A Rx Audio 2A Output Table 5 31 ESC 64 K DATA 9 Pin Fe
210. ted state When in the faulted state the receive end of the link will receive that backward alarm that is initiated at the transmit end of the link 3 6 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Operation The user can connect whichever systems on the earth stations that they desire to these Backward Alarms Relays as long as they will supply ground to the Backward Alarm Relay Input in the no fault condition and the ground will be removed in the faulted condition For example the user could connect the Demod Summary Fault of the modem to the Backward Alarm 1 Input so that if the demod went into Major Alarm such as a Carrier Loss Backward Alarm 1 would be transmitted to the receive end of the link At the receive end it would show up as Rx Backward 1 Receive Backward Alarm 1 3 8 1 To Disable the ESC Backward Alarms If the ESC ALARMS Port will not be used and the Backward Alarm Indications are to be disabled connect the following pins of the ESC ALARMS Port Connect Pins 1 10 11 22 and 23 connect all together Pin 1 is ground and Pins 10 11 22 and 23 are the inputs of Backward Alarms 1 through 4 By connecting these four pins to ground Pin 1 the Backward Alarms will be disabled and indicate PASS for BK1 through BK4 3 9 IDR or IBS D amp I Configuration Instructions Note Newer Modems are Front Panel Configurable disregard Sections 3 9 1 and 3 9 2 To check from the Front Pan
211. ted SER 0 E 5 5 V Mon 4 9 4 Remote Addr 101 Corrected BER 0 E 12 12 V Mon 712 6 Offset Frq Hz 4 12 V Mon 11 9 6 Center Buffer 2047 Error Cnt NO SYNC Events 0 Buffer Fill 50 2047 BER NO SYNC Page Down Page Up 07 EVENT BUFFER LOG TIME DATE TYPE MESSAGE 10 8 37 50 16JUL00 A Demod Input Level Alarm 11 18 37 50 1600100 A Demod Viterbi Decoder Lock Alarm 12 18 37 50 16707100 A Demod Buffer Clock Lock Alarm T3 8 37 50 1600100 A Carrier Lock Alarm 14 8 37 52 1670100 A Demod Input Level Alarm Cleared 15 8 37 52 16270100 A Demod Viterbi Decoder Lock Alarm Cleared 31 Delete One Entry 41 Delete All Entries 51 Sort By Time Enter Selection Number Figure 4 5 Event Buffer Terminal Screen 4 26 TM065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem User Interfaces 1 Main Menu IF Input dBm 31 3 7 V SW F04780 Ver 1 3 2 Control Mode Terminal Eb No gt 20 00 Intf Pres IDR G 703 3 Remote Mode RS 485 Uncorrected SER 0 E 5 5 V Mon 4 9 4 Remote Addr 101 Corrected BER 0 12 12 V Mon 12 6 Offset Hz 1 12 V Mon 11 9 6 Center Buffer 2047 Error Cnt NO SYNC Events 10 Buffer 111 50 2047 NO SYNC ALARM STATUS MOD MAJOR MASK DEMOD MAJOR MASK DEMOD INOR MASK COMMON MASK Zl IXUuPrOC P No 41 RxuProc P
212. terbi K 7 1 2 3 4 7 8 Sequential Optional 2 3 Trellis Optional Selectable On or Off Intelsat V 35 mode selectable 7 3 Demodulator Specifications Frequency Range Input Carrier Range Acquisition Tracking Reacquisition range IF Input Impedance Return Loss FEC 065 Rev 3 3 50 90 and 100 180 MHz or 950 1750 MHz Optional L Band 1 Hz steps C 10 log Symbol Rate C min 118 C max 93 1 kHz to 42 kHz 1 kHz steps 1 kHz to 42 kHz 1 kHz steps 750 or 500 Front Panel Selectable 20 dB minimum 1 2 3 4 and 7 8Viterbi K 7 1 2 3 4 and 7 8 Sequential Optional 2 3 Trellis Optional 7 1 Technical Specifications DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Typical Eb No Viterbi Rate 1 2 Rate 3 4 Rate 7 8 at BER 10 5 1 6 2 7 5 at BER 10 6 2 7 7 8 6 Typical Eb No Trellis 8PSK Rate 1 2 at BER 10 7 2 at BER 10 8 9 Typical Eb No 64 Kbps Sequential Optional Rate 1 2 Rate 3 4 Rate 7 8 at BER 10 4 0 5 0 6 1 10 4 9 5 9 7 4 Note Eb No typical values include effect of using differential encoding and V 35 scrambler Descrambler Intelsat V 35 mode selectable Data Buffering 8 bits to 262 144 bits in 8 bit steps Terrestrial Interfaces RS 449 422 RS 232 V 35 U E1 B T1 B8ZS B E1 or 1 Alarms Summary Alarms Two separate form C contacts available at the rear panel Each provides a summary alarm of fault cond
213. the computer times out and re transmits the same command packet with the same lt FSN gt to the same receiver and waits once again for an acknowledgment or a NAK packet To reiterate the format of the message block is shown in Table B 4 Link Level Protocol Message Block Table 4 6 Link Level Protocol Message Block SYNC COUNT SRC DEST FSN OP DATA CHECKSUM ADDR ADDR CODE BYTES The RLLP Remote Port Packet structure is as follows lt SYNC gt Message format header character that defines the beginning of a message The lt SYNC gt character value is always 0x16 1 byte lt COUNT gt Number of bytes in the DATA field two bytes lt SOURCE ADDR gt Identifies the address of the equipment from where the message originated 1 byte lt DEST ADDR gt Identifies the address of the equipment where the message is to be sent 1 byte lt FSN gt Frame sequence number ensures correct packet acknowledgment and data transfers 1 byte lt OPCODE gt This byte identifies the message type associated with the information data The equipment processes the data according to the value in this field Return error codes and acknowledgment are also included in this field two bytes lt DATA gt Information data The number of data bytes in this field is indicated by the BYTE COUNTS value lt CHECKSUM gt The modulo 256 sum of all preceding message bytes excluding the SYNC character 1 byte 4 4 9 DMD2401 Opcode Command
214. ting Mode 0 Normal 1 2047 Test 1 Alarm 1 Mask Bit 0 Receive Processor Fault Bit 1 Signal Lock Fault Bit 2 Receive Satellite AIS Fault Bit 3 Rx AGC Input Level Fault Bit 4 Reed Solomon Sync Fault Bit 5 Reed Solomon Excessive Errors Fault Bit 6 Reed Solomon Uncorrectable Word Fault Bit 7 Receive Forced Alarm 0 Mask 1 Allow lt 1 gt Alarm 2 Mask Bit 0 Buffer Underflow Bit 1 Buffer Overflow Bit 2 Buffer Under 10 Bit 3 Buffer Over 90 Bit 4 Receive FPGA Configuration Alarm Fault Bit 5 Rx LNB Fault LBST Only Bits 6 7 Spares 0 Mask 1 Allow 1 Alarm 3 Mask Bit 0 IF Synthesizer Lock Detect Fault Bit 1 Rx Oversample PLL Lock Detect Fault Bit 2 Buffer Clock PLL Lock Detect Fault Bit 3 Viterbi Decoder Lock Fault Bit 4 Sequential Decoder Lock Fault Bit 5 Rx 2047 Test Pattern Lock Fault Bit 6 External Reference PLL Lock Fault Bit 7 Frame Sync Multiframe Sync Loss 0 Mask 1 Allow lt gt Alarm 4 Mask Bit O Buffer Clock Activity Detect Fault Bit 1 External BNC Activity Detect Fault Bit 2 Rx Satellite Clock Activity Detect Fault Bit 3 External Reference PLL Activity Fault Bits 4 7 Spares 0 Mask 1 Allow lt 1 gt Common Alarm 1 Bit 0 12 V Alarm Mask Bit 1 12 V Alarm Bit 2 5 V Alarm Bit 3 Temperature Bit 4 Interface FPGA Fault Bit 5 Battery Fault Bit 6 RAM ROM Fault Bit 7 Spare 0 Mask 1
215. uffer clock source is not active Pass Fail No Yes Indicates no activity on the external reference Pass Fail No Yes Fail indicates that there is a loss of satellite data Pass Fail No Yes Indicates the status of the Reed Solomon Decoder Lock Pass Fail No Yes Indicates the status of the Reed Solomon De interleaver word fault TMO65 Rev 3 3 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem UnCWord Mask IBS Alarms menu Prompt Mask Service Mask BER Mask Common menu 12Volt Mask 12Volt Mask 5Volt Mask Temp Mask IntFPGA Mask Battery Mask RAM ROM Mask M amp CProc Mask Ref PLL Mask Ext EXC Mask Ext Ref Mask D Card Mask User Interfaces Pass Fail No Yes Indicates the status of the Reed Solomon uncoded word fault Pass Fail No Yes Indicates that a Prompt Maintenance Alarm is generated as defined in Rec ITU T6 803 Pass Fail No Yes Indicates that a Service Alarm is generated as defined in Rec ITU T6 803 Pass Fail No Yes Fail indicates BER of 1 x 10 greater from satellite input Pass Fail No Yes Indicates the power supply voltage is out of range Pass Fail No Yes Indicates the power supply voltage is out of range Pass Fail No Yes Indicates the power supply voltage is out of range Pass Fail No Yes Fail indicates that internal temperature of the modem is out of range Pass
216. ulator Alarm Non Alarm is defined as the powered state of the relay Thus if there is a Modulator Alarm and or Demodulator Alarm the pins will be connected as shown in Table 5 3 Table 5 3 Alarm Relays No Alarm Modulator Pins 2 and3 Shorted Pins 1 and 2 Shorted Demodulator Pins 8 and 9 Shorted Pin 7 and 8 Shorted The pin definitions for J6 are shown in Table 5 4 below Note The NC and NO Normally Closed and Normally Open nomenclature applies to non energized relays Table 5 4 Alarm Connector Pin Assignment J6 J6 Pin Connection Number AJOIN Mod Alarm Relay A on Alarm Mod Alarm Relay A Common Mod Alarm Relay A NC on Alarm AGC Voltage Output GND Demod Alarm Relay B NO on Alarm Demod Alarm Relay B Common Demod Alarm Relay B NC on Alarm 065 Rev 3 3 5 3 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 5 3 7 REMOTE J7 The Remote Port J7 is the RS 485 connection for remote monitor and control of the modem It is a 9 Pin Female Connector Refer to Table 5 5 below for the connector pinouts Table 5 5 RS 485 Remote Port 9 Pin Female Connector J7 Pin Number Signal Description Direction 1 RS 485 TxD B Transmit Data Output 5 GND Ground 6 RS 485 TxD A Transmit Data A Output 8 RS 485 RxD B Receive Data Input
217. ure 4 3 Modulator Control Terminal Screen 065 Rev 3 3 4 25 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem 1 Main Menu IF Input dBm 31 3 7 V SW F04780 Ver 1 3 2 Control Mode Ft Panel Eb No gt 20 00 Intf Pres IDR G 703 3 Remote Mode RS 485 Uncorrected SER 0 E 5 5 V Mon 4 9 4 Remote Addr 101 Corrected BER 0 E 12 12 V Mon 12 6 Offset Frq Hz 4 12 V Mon 11 9 6 Center Buffer 2047 Error Cnt NO SYNC Events 529 Buffer 1115 50 2047 NO SYNC DEMODULATOR CONTROLS 30 Demod Mode Closed Net 40 Dmd Framing None 50 Impedance 75 Ohm 31 Frequency 70 000000 MHz 41 DscmblrCtl Enable 51 Data Invert Normal 32 Sweep Limit 25 kHz 42 DscmblrSel V 35 IESS 52 BER Period 10 5 33 Data Rate 2048000 BPS 43 Spectrum Normal 53 Buffer byte 8192 34 Ext Ref 10 000000 MHz 44 2047 Test Normal 54 Buffer msec 32 35 Ref Source Internal 45 BufClk Sel RX SAT 55 Reed Solomon Disable 36 Inp Lvl Lmt 90 dBm 46 BufClk Pol Inverted 56 Reed Sol N 219 37 Dmdulation QPSK 47 Loop On 57 Reed Sol K 201 38 Conv Decodr VIT 3 4 48 Terr Loop Off 58 RS Depth 8 39 Diff Decodr On 49 Base Loop Off Enter Selection Number Figure 4 4 Demodulator Control Terminal Screen 1 Main Menu IF Input dBm 31 3 7 V SW F04780 Ver 1 3 2 Control Mode Terminal Eb No gt 20 00 Intf Pres IDR G 703 3 Remote Mode RS 485 Uncorrec
218. used an Enhanced multiplexer mode has been implemented that can be engaged under software control Since this mode changes the use of many of the framed non data bits this mode is only usable when the DMD2401 is at both ends of a link In this mode the overhead signaling bytes 16 and 48 can be used to implement a significantly higher speed ES to ES Data Channel under software control When implemented this rate is 16 times that of the normal IBS standard or 1 30 of the terrestrial data rate 1 32 of the aggregate rate Note The IBS Async mode MUST be selected for true Asynchronous channel operation to be available 3 8 ESC Backward Alarms When running in IDR Mode and if the modem has the ESC Option there will be four Backward Alarms available for use by the earth stations at each end of the link both ends must have the ESC option These alarms are accessed via the ESC ALARMS Port The four alarms are controlled by four relays each having a normally open normally closed and a common connection The common connections of these relays referred to as Backward Alarm Inputs can be connected to whichever system on the earth station that the user wishes to trigger the backward alarm When ground is applied to the common input connection of one of these relays that relay and associated backward alarm will then be in a no fault state When the ground is removed the relay and the associated Tx Backward Alarm will toggle to the faul
219. ut 7 ESCAUDRX 1B Rx Data 64K B Output 8 ESCAUDTX2A Tx Clock 64K A Output 9 ESCAUDRX2A Rx Clock 64K A Output 065 Rev 3 3 5 21 Electrical Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Table 5 19 Asynchronous Interface 9 Pin Female D Connector 917 Pin Number Signal Description Direction TX 485 B Transmit Data RS485 TXD 232 Transmit Data RS232 RXD 232 Receive Data RS232 GND Ground NC Not Connected RX 485 A Receive Data 485 RX 485 B CTS Receive Data 485 TX 485 A Transmit Data 485 RTS Request to Send 2 3 5 4 9 8 6 7 5 22 065 Rev 3 3 DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Electrical Interfaces 5 7 DMD2401 IDR J9 0 J8 J12 J6 J5 J14 J4 J15 J3 J2 J1 J17 ESC 64K DATAAUDIO Sao RCVIFIN MADE IN USA Figure 5 5 DMD2401 Satellite Modem IDR 5 7 1 RCV IF IN J1 The Receive IF Input J1 is the 50 90 MHz and 100 180 MHz Demodulator IF Input 5 7 2 EXT REF IN J2 The External Reference Input Port J2 is used for injecting an external reference frequency into the modem The DMD2401 Master Oscillator is locked to this source All internally generated frequencies within the modem will attain the stability of the applied external reference The external reference must meet the following parameters Frequency 10 MHz 9 MHz 5 MHz 2
220. vel Input Level State Alarm 5 Insert Alarms Insert Back Alarm AGC Voltage User Interfaces 0 Offset Frequency Pos 1 Offset Frequency Neg Bit 0 Raw BER and Corrected BER Status 1 Valid Bit 1 Test 2047 BER Status 1 Valid Bits 2 3 EbNo Status 0 EbNo is Invalid 1 EbNo is Valid 2 EbNo is Smaller Than Indicated Value 3 EbNo is Greater Than Indicated Value Bits 4 7 Reserved Unsigned Binary Value Representing Buffer Full 0 100 in 196 Steps Unsigned Binary Value in 1 dB Steps Negative Sign Implied Signed Binary 0 Equal to 1 Greater Than 1 Less Than Value in 1 dB Steps Negative Sign Implied Bit 0 IBS Satellite Multiframe Loss Bit 1 IBS Satellite Frame Loss Bit 2 Spare Bit IBS Alarm if BER lt 107 Bit 4 IBS Prompt Alarm Bit 5 IBS Service Alarm Bits 6 7 Spares Bit 0 Frame Lock Fault Bit 1 Multiframe Lock Fault Bit 2 CRC Lock Fault Valid only in T1 ESF and E1 CRC enabled Bit 3 T1 Yellow Alarm Received Bit 4 E1 FAS Alarm Received Bit 5 E1 MFAS Alarm Received Bit 6 E1 CRC Alarm Received Bit 7 CRC Calculation Fault Bit 0 Backward Alarm Received from Satellite Bits 2 7 Spares In Hex decimal point implied Opcode lt 240Ch gt Query a Demodulator s Status Query response lt 1 gt lt 1 gt Revision Number Alarm 1 065 Rev 3 3 Decimal Point Implied B
221. will be connected as shown in Table 5 3 The pin definitions for J6 are shown in Table 5 4 Note The NC and NO Normally Closed and Normally Open nomenclature applies to non energized relays 5 5 7 REMOTE J7 The Remote Port J7 is the RS 485 connection for remote monitor and control of the modem It is a 9 Pin Female Connector Refer to Table 5 5 for the connector pinouts 5 5 8 SWITCH INTERFACE J8 The Switch Interface Port J8 is the redundancy switch connector It is a 68 Pin High Density Female Connector Refer to Table 5 10 for connector pinouts J8 Table 5 10 Switch Interface Port 68 Pin High Density Female Pin Number Signal Description Direction 1 G 703B SD A G 703 Send Data Input A Input 2 SYNC SD A Synchronous Data Send Data Input A Input 3 ESCBWO 1C IDR ESC Backward Alarm Out 1 Common Output 4 G 703B IDI A G 703 Insert Data Input A Input SYNC ST A Synchronous Data Send Timing Output A Output 6 ESCBWO 1NO IDR ESC Backward Alarm Out 1 Normally Output Open 7 SYNC Synchronous Data Terminal Timing Input A Input 8 ESCBWO 2NC IDR ESC Backward Alarm Out 2 Normally Output Closed 9 DDO A RT A G 703 Drop Data Out A Synchronous Output Data Receive Timing Output A 10 ESCBWO 3C IDR ESC Backward Alarm Output 3 Output Common 11 IDO A RD A G 703 Insert Data Out A Synchronous Output Data Receive Data A 12 ESCBW
222. ype causing contention on the bus The BROADCAST ID on the other hand is accepted by all equipment but none of them returns a response packet to the remote M amp C The following multi drop override IDs are device type specific with the exception of BROADCAST These are summarized below with ID values expressed in decimal notation Directly Addressed Equipment Broadcast all directly linked devices Multi Drop Override ID DMD 3000 4000 4500 or 5000 Mod Section DMD15 DMD 3000 4000 4500 or 5000 Demod Section DMD15 RCU 340 1 1 Switch RCS 780 1 N Switch RMUX 340 Cross Connect Multiplexer CDS 780 Clock Distribution System SOM 340 Second Order Multiplexer DMD 4500 5000 Modulator Section DMD 4500 5000 Demodulator Section RCU 5000 M N Switch DMD15 Modulator DMD15 Demodulator DMD15 Modem DVB3000 Video Demodulator RCS20 M N Switch RCS10 M N Switch RCS11 1 1 Switch DMD2401 Modem Unused 065 Rev 3 3 4 41 User Interfaces DMD2401 DMD2401L DMD2401 IBS IDR Satellite Modem Note that multi drop override IDs 01 or 02 can be used interchangeably to broadcast a message to a DMD3000 4000 modem or to a DMD4500 5000 or to DMD15 modem Radyne ComStream Corporation recommends that the multi drop override IDs be issued only during System configuration as a bus test tool by experienced programmers and that they not be in

DMD2401/L VSAT/SCPC Satellite Modem

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