Patton electronic 2701RC User's Manual
Contents
1. 44 Appendix E DTE Interface Pin Assignments 45 1 1 0 WARRANTY INFORMATION Thank you for your purchase of this Patton Electronics product This product has been thoroughly inspected and tested and is warrant ed for One Year parts and labor If any questions or problems arise during installation or use of this product please do not hesitate to con tact Patton Electronics Technical Services at 301 975 1007 1 1 WARRANTY STATEMENT Patton Electronics warrants all Model 2701RC Series compo nents to be free from defects and will at our option repair or replace the product should it fail within one year from the first date of shipment This warranty is limited to defects in workmanship or materials and does not cover customer damage abuse or unauthorized modification This product contains no serviceable parts therefore the user shall not attempt to modify the unit in any way If this product fails or does not perform as warranted your sole recourse shall be repair or replace ment as described above Under no condition shall Patton Electronics be liable for any damages incurred by the use of this product These damages include but are not limited to the following lost profits lost savings and incidental or consequential damages aris ing from the use of or inability to use this product Patton Electronics specifically disclaims all other warranties expressed or implied and the instal2. Connected Open DTE Shield DB 15 Pin 1 amp FRGND JB3 15 In the connected position this strap links DB 15 pin 1 amp frame ground In the open position pin 1 is disconnected from frame ground JB3 Position 1 amp 2 DTE Shield Pin 1 and FRGND Connected Position 2 amp 3 DTE Shield Pin 1 and FRGND Not Connected SGND amp FRGND JB4 In the connected position this strap links DB 15 pin 8 Signal Ground and frame ground through a 100 ohm resistor In the open position pin 8 is connected directly to frame ground JB4 Position 1 amp 2 SGND Pin 8 and FRGND Connected through a 100 ohm resistor Position 2 amp 3 SGND Pin 8 and FRGND Directly Connected 3 2 4 Model 1001RCM11575 Strap Settings Figure 8 shows strap locations for the Model 1001RCM11575 DB 15 Dual BNC rear cards Figure 8 shows strap locations for the Model 1001RCM11548C DB 15 rear cards These straps determine various grounding characteristics for the terminal interface and twisted pair lines JB3 and JB4 are user configurable JB4 JB3 Figure 8 1001RCM11575 strap locations INTERFACE CARD STRAP SUMMARY TABLE 3 Strap Function Position 1 amp 2 Position 2 amp 3 JB3 DTE Shield Pin1 amp FRGND Connected Open JB4 FRGND amp SGND Pin 8 Connected Open Indicates default setting 16 3 3 100 SOFTWARE CONFIGURATION 3 3 2 Accessing the Menu System This section describes the VT
3. CR Depress the Enter Carriage Return key 17 18 The password prompt will be displayed as shown below 3 3 3 Introduction to Main Menu After entering the password you may access all of the system s functions and parameters The Main Menu looks like this Patton Electronics Menu Management Enter Password 6 Note The password is case sensitive Type the password and press Enter The factory default password for the unit IS 2701RC patton NOTE If the entry is incorrect the password screen will clear HELPFUL HINTS and prompt you again for the correct password The password you enter will not be shown For security asterisks will be dis played for each letter you type The maximum length of the password which can include any character the terminal can generate is 16 characters 1 To make a selection key the highlighted letter that corre sponds to a menu selection 2 To execute the selection type Enter CR 7 The NetLink E1 will then display the Main Menu screen 3 To toggle between options on a highlighted selection Press space 4 Select Save Changes from Main Menu after making modi fications to any Model 2701RC parameter Otherwise changes will be lost when the Model 2701RC is turned off 19 20 Main Menu options briefly described below System Configuration options allow you to change various aspects of the Model 2701RC operation e g framing l
4. 100 configuration using a 1001CC 1 Set the Card Address as described in Section 3 2 1 For information on configuration using SNMP through the 1001MC please refer to the 1001MC user manual 2 Set S2 7 to the OFF position to select VT 100 control The NetLink E1 rack card features a VT 100 menu driven system that may be used for local configuration and management Cards are 3 Power up the terminal and set its RS 232 port as follows configured and managed by setting a separate address for each card using hardware switches and then accessing each card using a rack 9600 Baud mounted NetLink Model 1001CC control card The software manage 8 data bits 1 stop bit no parity ment system is described below For more information on the Model Local echo off 1001CC please refer to the Model 1001CC user manual ANSI or VT 100 emulation NOTE The Model 1001CC uses an internal bus to communicate with the 2701RC When using software configuration the rear 4 Here is an example of a terminal emulator setup session In card for the 2701RC should be configured with FRGND and normal font are the various parameter types In bold type are SGND connected Please see section 3 2 for more information the values that should be used for best results Your terminal on configuring your rear card program s setup screen may differ from this one 3 3 1 Setting the Card Address Baud rate 9600 Parity None Data Length 8 Stop Bits 1 The 2701RC contains two rota
5. 1001RCM11575 rear card Dual BNC connectors CRC 4 Setting Disabled default Options Enabled Disabled CRC 4 Multiframe CRC 4 Multiframe uses TSO to carry CRC 4 information It operates independently of CAS MF When CRC 4 is enabled the unit monitors the incoming data stream for CRC 4 errors It transmits CRC 4 error counts to the trans mitting unit Excessive errors may cause loss of frame or loss of sync If CRC 4 MF is used both units must be set for CRC 4 MF otherwise the one using CRC 4 MF will detect a loss of sync 24 CAS MF Setting Disabled default Options Enabled Disabled CAS MF CAS multiframe uses Timeslot 16 TS16 to send multi frame MF alignment data In CAS MF a MF is defined as 16 frames where a frame consists of 32 64kb s timeslots num bered 0 to 31 TS16 of the first frame in the MF contains the CAS MF alignment word in the upper four bits The alignment word is always 0000 binary The 2715 does not perform any signaling in TS16 other than to insert the MF alignment word in order to maintain MF alignment When CAS MF disabled the unit transmits user data in TS16 therefore up to 31 chan nels are available for user data When it is enabled TS16 is not available to the user In this case the user can use up to 30 channels for data CAS MF can be used with CRC 4 MF or by itself When enabled both units must employ CAS MF if one unit is set for CAS MF and the other is not the one usi
6. Insertion to Toggle the front panel switch to either PAT or PAT E Test Pattern with Error Injection 43 APPENDIX A PATTON MODEL 2701RC Network Data Rate Network Connector Nominal Impedance DTE Interface Line Coding Line Framing CAS Multiframing CRC 4 Multiframing Clocking DTE Data Rates Time Slot Rate DSO Start Position DSO Mapping Position Diagnostics Indicators Configuration Power Supply Humidity Temperature Dimensions SPECIFICATIONS 2 048 Mbps RJ 48C or dual BNC 120 ohm 75 ohm available when using Patton Model 1001RCM11575 rear card V 35 DCE Orientation X 21 DCE or DTE orientation RS 530 RS 232 10Base T Ethernet Selectable AMI or HDB3 G 703 Unframed or G 704 G 732 Framed Selectable On or Off Selectable On or Off Internal External or Receive Recover 64 128 192 256 320 384 448 512 1024 1088 1152 1526 1580 1344 1792 1856 1920 1984 2048 kbps 64 kbps Arbitrary Contiguous or Arbitrary V 54 Loopback V 52 Patterns 511 2047 and QRSS Power Transmit Data Receive Data Alarm Loss of Sync Test Mode Error Two 8 Position DIP Switches RS 232 Control Port or SNMP Managable 100 240VAC 50 60Hz 0 4A Up to 90 non condensing 0 to 709 C 9 0 x 5 3 x 2 0 cm 3 5 L x 2 1 W x 0 78 Hj 44 APPENDIX PATTON NETLINK E1 MODEL 2701RC CABLE RECOMMENDATIONS The Patton NetLink E1 Series has been perfo
7. Local position 40 2 Verify that the data terminal equipment is operating properly and can be used for a test 3 Perform V 52 BER bit error rate test as described in Section 5 3 If the BER test equipment indicates no faults but the data terminal indicates a fault follow the manufactur ers checkout procedures for the data terminal Also check the interface cable between the terminal and the NetLink E1 5 2 2 Operating Remote Digital Loopback RL The Remote Digital Loopback RL test checks the performance of both the local and remote NetLink E1 as well as the communication link between them Any characters sent to the remote NetLink E17M in this test mode will be returned back to the originating device i e char acters typed on the keyboard of the local terminal will appear on the local terminal screen after having been passed to the remote NetLink E1 and looped back G 703 G 704 NTU G 703 G 704 NTU Model 2701 RC Model 2701 RC Internal Receive Serial Clocking Recover Ethernet Device Clocking Device Clock Clock Data Data Clock 7 Data Data Model 2701RC Model 2701RC RDL Initiated Figure 8 Remote Loopback There are two Remote Loops that can be initiated from the NetLink E1 unit 1 V 54 Loop and 2 CSU Loop The user select the type of loop that can be initiated from the System Diagnostics Statistics screen or with Switch 52 1 Select R
8. V 54 loopback command and the whole process takes only a few seconds to complete When V 54 Loopback is disabled the unit will not be able to send or respond to V 54 or CSU loopback commands The duration of the loopback is limited by the loopback timeout setting 52 4 Option Off RDL Response Disabled On RDL Response Enabled SWITCH S2 5 TEST MODE REQUEST FROM DTE Use Switch S2 5 to allow Model 2701RC to enter loopback tests when the DTE raises the appropriate loop request pin 1 8 Setting 9 Response to Loopback Request Enabled On Response to DTE Loopback Request Disabled SWITCH S2 6 FRONT PANEL SWITCHES As the Front Panel Switches may be inadvertently toggled or in the event that the end user may not need to use the switches the installer may disable the front panel switches Set Switch S2 6 to determine whether the front panel toggle switches are enabled or disabled 52 6 Option On Front Panel Switches Enabled Off Front Panel Switches Disabled SWITCH S2 7 VT 100 OR NMS SELECTION Switch S2 7 selects the configuration mode that the G 703 Access Rack Card uses When VT 100 is selected configuration and status can be setup through a VT 100 terminal using a 1001CC When NMS network management station is selected configuration and status can be setup and maintained through SNMP using a 1001MC Please refer to the 1001MC user manual when using this mode Note Dip switch configuration can be used regardless o
9. 01RC cards using menu driven controls The Netlink E1 uses AMI and HDB3 line coding Netlink E17M also supports a full range of system and diagnos tic features that make system setup easy The NetLink E1 provides E1 terminations over a modular RJ 48C jack or dual 75 Ohm BNC connectors when using the 1001RCM11575 Power options include a single AC or DC or redundant AC DC 4 3 0 CONFIGURATION The 2701RC features configuration capability via hardware DIP switches a software control port or SNMP through the 1001MC This section describes all possible hardware and software switch configura tions of the network connection NOTE The 2701RC factory default is set to DIP switch control Software control can be enabled either through the control port or SNMP management station Performing a hardware reset sets the unit for dip switch control 3 1 DIP SWITCH CONFIGURATION The Model 2701RC has two eight bit DIP switches and two rotary DIP switches that allow configuration for a wide range of applications The switches are accessed by removing the card from the chassis FRONT RS 530 Figure 1 Model 2701RC Series top view showing location of DIP switches Figure 1 below shows the location of the DIP switches on the top of the printed circuit board DIP Switches 51 52 be configured as either On or Off Figure 2 below shows the orientation of the DIP switches with respect to ON OFF positions
10. 05 MANUAL MODEL 2701RC Series NetLink E1 E1 Fractional E1 CSU DSU Rack Card Err Pr ae i w T rat PE ean d E Bl Zlecitronicz unm ISO Part 07 2701 SALES OFFICE Doc 086131UB 301 975 1000 Revised 03 09 01 TECHNICAL SUPPORT iun 301 975 1007 An ISO 9001 http www patton com Certified Company TABLE OF CONTENTS Section Page 1 0 Warranty 2 1 1 Warranty Statement 1 2 FCC Information 1 3 Service Information 2 0 General 4 2 1 Features 2 2 General Product Description 3 0 5 3 1 Switch Configuration 3 3 Rear Interface Cards Configuration 4 0 Installations orien entrate 34 4 1 The Model 1001R14 Rack Chassis 4 2 Installing the Interface Driver Board 4 3 Installing the 2701RC Into the Rack Chassis 4 4 Connecting to a DTE Device 4 5 Connecting to a DCE Device 4 6 Connecting the E1 Interface 4 7 Connecting dual Coax BNC 75ohm 5 0 Operallon ni eee 36 5 1 LED Descriptions 5 2 Loop V 54 amp Telco Diagnostics 5 3 Bit Error Rate V 52 Diagnostics Appendix A Specifications 41 Appendix B Cable 42 Appendix C Factory Replacement Parts and Accessories 43 Appendix D E1 Interface Pin Assignments
11. 1RPEM RDC DC Rear Power Entry Module 1001RPSM RA8BA 48V Front Power Supply Module 1001R14P Rack 14 Slot 20 Chassis Only 1001R14P R48V Rack 14 Slot 2U w Dual Universal Input 48VDC Power Supplies 1001R14P RUIA Rack 14 Slot 2U w Dual Universal Input 90 260VAC Power Supplies European Power Cord 1001R14P RUIC Rack 14 Slot 2U w Dual Universal Input 90 260VAC Power Supplies Austrialia Power Cord 1001R14P RUID Rack 14 Slot 2U w Dual Universal Input 90 260VAC Power Supplies UK Power Cord 1001R14P RUIG Rack 14 Slot 2U w Dual Universal Input 90 260VAC Power Supplies India Power Cord 1001R14P RUIK Rack 14 Slot 2U w Dual Universal Input 90 260VAC Power Supplies US Power Cord 1001RCM12548C DB 25 RJ 45 Rear Card 1001RCM13448C M 34 RJ 45 Rear Card 100166 he Control Card 2 RS 530 Interface Rear 1180RC V 35 Daughter Board O5R16BP440W w Single Width Blank Rear Panel White 05R16FP440W Single Width Blank Front Panel White 0516 1 Single Width Blank Front Panel Black 516 4 Wide Blank Front Panel Black 0516RPB1 e Single Width Blank Rear Panel Black 0516 4 4 Wide Blank Re
12. 25 Female Connector Terminal Interface Signal FG FrameGround TD Transmit Data A DTE Source RD Receive Data A DCE Source RTS Request to Send A DTE Source CTS Clear to Send A DCE Source DSR Data Set Ready A DCE Source SGND Signal Ground CD Carrier Detect A DCE Source RC Receiver Clock B DCE Source CD Carrier Detect B DCE Source XTC External Transmitter Clock B DTE Source TC Transmitter Clock B DTE Source CTS Clear to Send B DCE Source TD Transmit Data A DTE Source TC Transmitter Clock B DCE Source RD Receive Data A DCE Source RC Receiver Clock A DCE Source LL Local LIne Loop RTS Request to Send B DTE Source DTR Data Terminal Ready A DTE Source DSR Data Set Ready B DCE Source DTR Data Terminal Ready B DTE Source XTC External Transmitter Clock A DTE Source TM Test Mode 49 APPENDIX E continued PATTON ELECTRONICS MODEL 2701RC INTERFACE PIN ASSIGNMENT X 21 Interface DB 15 Female Connector DTE DCE Configuration Pin Signal Frame Ground Transmit Data A Se aed C Control A Ads eo R Receive Data A Ds M RH E Indication A Oum suere S Signal Element Timing A TAPER REOR BT Byte Timing A Becker SGND Signal Ground Os iL E T Transmit Data B 10 llt C Control B Tl eee es EIS R Receive Data B I Indication B 5 Signal Element Timing B 14 oc
13. 51 2 51 3 CLOCK MODES ON ON OFF ON 1472kbps OFF OFF OFF ON ON 1536kbps Set switch S1 2 and S1 3 to determine the 2701RC s transmitter ON OFF OFF ON ON 1600kbps timing OFF ON OFF ON ON 1664kbps ON ON 1728kbps OFF OFF ON ON ON 1792kbps OFF ON ON ON 1920kbps ps ON ON ON ON 1984kbps OFF OFF OFF OFF OFF Clear Channel 2048kbps NOTE When the data rate is set to 2 048Mb s the unit is forced into G 703 mode and it transmits user data on all 32 time lots There is no framing information therefore the CRC4 MF S2 2 Network Clock Transmitter timing is derived using the received line switch is ignored In all other rate settings the unit employs G 704 signal received recovered from the network framing TSO is reserved for signaling Internal Clock Transmitter timing is derived from an internal clock Source External Clock Transmitter timing is derived from DTE terminal tim SWITCH SET 2 SUMMARY TABLE ing Position Function Factory Default Selected Option SWITCH S1 4 THROUGH S1 8 DTE DATA RATE NEM Eee CRC 4 multiframe Disabled Use switches 51 4 through 51 8 to set the DTE data rate RDL Type 51 4 61 5 61 6 81 7 51 8 Speed BBE Response Enabled ON OFF OFF OFF OFF 64kbps TM from DTE Enabled OFF ON OFF OFF OFF 128kbps Front Panel Switch Enabled OLES OER ZON SOFE OEE 2o s27 100 Switon _ OFF VT400 OFF OFF ON OFF OFF 256kbps 52 7 NMS VT 100 Switch OFF VT 100 ON OFF ON OFF OFF 320kbps
14. 548C 1001RCM12548C 1001RCM13448C IM2RC IA Dual BNC RJ 48C RJ 48C RJ 48C RJ 48C e e e O5 23 123 gt E 3 E 1 Figure 4 Orientation of Interface Card Straps 3 3 3 LI 9 9 Sections 3 2 1 3 2 2 and 3 2 3 describe the strap locations and possi T 2 ble settings for each rear card es e e 3 2 1 Model 1001RCM12548C Strap Settings ce S ME 0 E e 2 1 Figure 5 shows strap locations for the Model 1001RCM12548C MU 25 rear cards These straps determine various grounding charac DB 25 ds Th t determi i di h 900 teristics for the terminal interface and twisted pair lines JB3 and JB4 are user configurable e gm e m ox DB 15 F DB 15 F DB 25 F M 34 F Figure 3 Model 2701RC Series interface card options JB3 123 NOTE The 2701RC Series rear cards are specifically designed to operate with the E1 function card and must not be swapped with other Patton function cards In addition the rear card must match the flip card installed on the front card JB4 123 Figure 5 1001RCM125XX strap locations 11 12 The table below provides an overview of interface strap functions for the rear interface cards Following the table overview are detailed descriptions of each strap s function INTERFACE CARD STRAP SUMMARY TABLE 1 Strap Function Position 1 amp 2 P
15. 64 rates up to1984 kbps G 704 Unstructured Rate of 2 048 Mbps G 703 G 703 or G 704 Framing with or without CRC 4 CAS multi frame Selectable AMI or HDB3 Line Coding Configuration via Internal DIP Switches software control port or SNMP management of local unit through the 1001MC Six Easy to Read LED Indicators Monitor Data amp Diagnostics Internal external Network Clocking Also Operates as a High Speed Point to Point Modem Fits into Patton s 2U Rack Mount Chassis Made in USA Conforms to ONP requirements CTR12 and CTR13 for connec tion to international telecom networks 2 2 GENERAL PRODUCT DESCRIPTION The Model 2701RC Series are single port E1 FE1 CSU DSUS that provide high speed WAN connectivity in a rack card package Connecting to the serial WAN port of a switch router or multiplexer the NetLink E1 provides E1 FE1 access connection at data rates of 2 048 Mbps and nx64 The Netlink E1 is an excellent choice when terminating leased line services Frame Relay backbones internet access as well as LAN to LAN services The 17 provides digital access to local WAN services between two facilities over a dedicated 4 Wire circuit WAN band width framing and coding options are programmed via internally accessible DIP switches via a VT 100 type terminal using a Model 1001CC control card or SNMP managable through the 1001MC With a 1001CC card a terminal can manage addressable 27
16. AGNOSTICS The NetLink E1 offers three V 52 Bit Error Rate BER test pat terns These test patterns may be invoked along with the LAL and RDL tests to evaluate the unit s and the communication links When a 511 2047 or QRSS test is invoked the NetLink E1 gen erates a pseudo random bit pattern of 511 bits 2047 bits or 2 bits respectively using a mathematical polynomial The receiving NetLink E1 then decodes the received bits using the same polynomial If the received bits match the agreed upon pseudo random pattern then the NetLink E1 s and the communication link s are functioning properly 511 Initiates a built in 511 bit pseudo random pattern generator and detector 2047 Initiates a built in 2047 bit pseudo random pattern generator and detector QRSS Initiates a built in 22 bit pseudo random pattern generator and detector 42 To perform 52 test follow these steps 1 2 Activate the local loopback or remote loopback diagnostic Activate the test pattern This may be done in one of two ways a Enter Test Pattern from the System Diagnostics Statistics menu and toggle the lt Spacebar gt until the desired test pattern appears One of two result codes will appear to the right of the Test Pattern listing OK Indicates that the received test pattern is error free BE Indicates that there are errors in the test pattern to deliberately insert errors in the pattern toggle Error
17. BT Byte Timing B 50
18. DL Type and press the lt spacebar gt to toggle between the CSU loop and the V 54 loop When a loopback is initiated this is the type of loop that the unit uses to loop up the remote unit NOTE The NetLink E1 will respond to both loops regardless of the state of the RDL Type To perform an RDL test follow these steps 1 Activate RDL This may be done in three ways a Enter BJ Remote Loop from the System Diagnostics Statistics menu and toggle the lt Spacebar gt until RL appears next to the Bj Remote Loop option 41 b Activate the RL signal on the DTE If you are not sure which lead is the RL signal please refer to Appendix D c Setthe front panel switch to Remote 2 Perform a bit error rate test BERT using the internal V 52 generator as described in Section 5 3 or using a separate BER Tester If the BER test indicates a fault and the Local Line Loopback test was successful for both NetLink s you may have a problem with the twisted pair line connection 5 2 3 CSU Loop The NetLink E 1 also responds to central office initiated loop com mands NetLink E1 will implement the loop up command when it recognizes the pattern 10000 in the data stream for a mini mum of 5 seconds The loop down command is implemented by the pattern 100 in the data stream for a minimum of 5 seconds The NetLink E1 will respond to Universal Loopback De activate to clear all central office loops 5 3 BIT ERROR RATE V 52 DI
19. Default position and descriptions for Switches 51 and 52 are provided on the next page ON fF tee fF fy 141288345678 OFF Figure 2 Close up of DIP switches showing ON OFF positions 5 On NOTE If you do not have a terminal you may force the unit to use the DIP switches as the default configuration source by turning off the unit setting all the DIP switches to the ON position then powering on the unit This will cause the unit to enter a special mode Then turn off the unit and change the switch settings to the desired settings When you turn the unit on again the unit will be set up with the selected switch settings NOTE The Model 2701RC is set to HDB3 line coding at the factory This setting can be changed to AMI via VT 100 menus using the 1001CC card or SNMP Management using the 1001MC card Switch 51 1 through 51 8 A detailed description of each switch S1 1 through S1 8 setting fol lows the summary table below Position Function Factory Default Selected Option 51 1 Addressing 100 5 bit OFF Address 1 99 51 2 Clocking Mode OFF Internal 51 3 Clocking Mode ON Internal 51 4 Data Rate OFF 81 5 Data Rate OFF 2 048 81 6 Data Rate OFF Mbps Clear 81 7 Data Rate OFF Channel 51 8 Data Rate OFF SWITCH S1 1 ADDRESSING BIT Use Switch S1 1 to select address range 100 120 when used in conjunction with S3 and S4 51 1 Address OFF Address Range 1 99 ON Address range 100 120 6
20. E1 is being used for private short range modem appli cations the twisted pair cable connected to its port will need to be a cross over cable See Appendix D for Interface pin assignments 4 7 CONNECTING DUAL COAX BNC 75 OHM In addition to the 120 Ohm twisted pair connection the Model 2701RC when used with the 1001RCM11575 rear card is equipped with dual female BNCs TX and RX for connection to a 75 ohm dual coax G 703 network interface 37 5 0 OPERATION Once the NetLink E1 is installed and configured properly it is ready to place into operation This section describes the function of the LED indicators and the use of the loopback and pattern test modes 5 1 LED DESCRIPTIONS The NetLink E1 is equipped with nine LED indicators that monitor the status of communication Figure 12 below shows the location of the LEDs on the NetLink E1 Series front panel 2 M Model 2701RC Figure 12 Model 2701RC front panel showing LED indicators TXD When the unit sends a one the TXD LED is green When it sends a zero the TXD LED is yellow Moreover the TXD LED is active only in active DSO channels In inactive channels the TXD LED is off RXD When the unit receives a one the RXD LED is green When it receives a zero the RXD LED is yellow Moreover the RXD LED is active only in active DSO channels In inac tive channels the RXD LED is off LOS The Loss of Sync LED lights when the unit loses synchronizati
21. Line build out 120 Ohms OFF ON ON OFF OFF 384kbps ON ON ON OFF OFF 448kbps SWITCH S2 1 CAS MULTIFRAME OFF OFF OFF ON OFF 512kbps ON OFF OFF ON OFF 576kbps CAS multiframe uses Timeslot 16 TS16 to send multiframe MF OFF ON OFF ON OFF 640kbps alignment data In CAS MF a MF is defined as 16 frames where a ON ON OFF 704kbps frame consists of 32 64kb s timeslots numbered 0 to 31 TS16 of the OFF OFF ON ON OFF 768kbps first frame in the MF contains the CAS MF alignment word in the upper ON OFF ON ON OFF 832kbps four bits The alignment word is always 0000 binary The 2701RC OFF ON ON OFF 896kbps does not perform any signaling in TS16 other than to insert the MF ON ON ON ON OFF 960kbps alignment word in order to maintain MF alignment When CAS MF dis OFF OFF OFF OFF ON 1024kbps abled the unit transmits user data in TS16 therefore up to 31 chan ON OFF OFF OFF 1088kbps nels are available for user data When it is enabled TS16 is not avail OFF ON OFF OFF ON 1152kbps able to the user In this case the user can use up to 30 channels for ON OFF OFF 1216kbps data CAS MF can be used with CRC 4 MF or by itself When enabled OFF OFF ON OFF ON 1280kbps both units must employ CAS MF if one unit is set for CAS MF and the ON OFF ON OFF ON 1344kbps other is not the one using CAS MF will detect a loss of sync OFF ON ON OFF 1408kbps 7 8 SWITCH 52 2 CRC 4 MULTIFRAME In framed mode S2 2 is used fo
22. N The Error ERR LED will blink once per second Selected Pattern Options QRSS 511 or 2047 Use this option to select the test pattern used to test the link NI STATUS The Network interface NI status is shown in the middle of the Diagnostics Statistics screen The brackets NI STATUS are empty when the link is operating normal EXZ 1 ly Only one error message is provided FE 1 SE LOS OOF Receiver Carrier Loss RCL occurs when J I J 255 consecutive zeros have been detected at the network interface RCL clears when a pulse is detected Rx Level dB lt 22 5 Current DIP Switch Settings The Switch settings are displayed here to facilitate troubleshooting your unit without opening up the unit first 30 3 2 4 Unit Options The Unit Options screen looks like this factory default Header Line 1 amp b Header Line 2 Headers 1 and 2 are provided for easy identification of your unit after installation You may want to give each unit a unique name via the header lines to help distinguish one unit from another You can enter a header up to 40 letters long Two lines provide 80 letters for your use That s a lot of flexibility Password The Password facility provides security by allowing only those who know the correct password to configure the unit via the control port You can still configure the unit via the DIP switches The password can be up to 16 characters long with no restric
23. amnrel Configuration Mara Pandwidth N 1 2 1 Front Fare Suwirctes Ensbled meleor Irem Highlights Zub weenu Enter Beleoc Option Spee Bar Exit Esc Pedraw oren Crrl L The System Configuration options are described below Line Format G 703 default Options G 703 G 704 G 703 G 703 is unframed 2 048Mb s In this case the DTE rate is equal to the line rate at the network interface NI CAS MF and CRC 4 are disabled G 704 G 704 reserves TSO for signaling and frame alignment Maximum data rate depends on whether CAS MF is enabled or not 22 D Line Coding HDB3 default Options AMI HDB3 HDB3 In this line coding the transmitter substitutes a deliberate bipolar violation when excessive zeros in the data stream are detected The receiver recognizes these special violations and decodes them as zeros This method enables the network to meet minimum pulse density requirements Unless AMI is required in your application HDB3 should be used whenever possible AMI Alternate Mark Inversion defines a pulse as a mark a binary one as opposed to a zero In a E1 network connection signals are transmitted as a sequence of ones and zeros Ones are sent as pulses and zeros are sent as spaces i e no pulse Every other pulse is inverted from the previous pulse in polarity so that the signal can be effectively transmit ted This mean
24. ar Panel Black 056981 eie Set of 16 4 pan head screws washers 10 25M 35M 1 Cable 6 ft DB 25 male to M 34 male 1010 10 Terminal Block 2 Position Male 07 2701 User Manual 46 2 5 OAN APPENDIX D PATTON NETLINK E1 MODEL 2701RC E1 INTERFACE PIN ASSIGNMENT RJ 48C E1 DS0 Network Interface Female Modular Jack Signal RX Data TIP 1 From Network RX Data RING1 TX Data TIP TX Data RING To Network 47 5 P ode cese uox com m UE o APPENDIX E PATTON NETLINK E1 MODEL 2701RC V 35 INTERFACE PIN ASSIGNMENT M 34 Connector Terminal Interface Signal GND Earth Ground Shield SGND Signal Ground CTS DCE Source DSR DCE Source Always On CD DCE Source LL Local Loop DTE Source TM Test Mode Indicator DCE Source RL Remote Loop DTE Source TD Transmit Data DTE Source RD Receive Data DCE Source TD Transmit Data DTE Source RD Receive Data DCE Source XTC Transmit Clock DTE Source RC Receiver Clock DCE Source XTC Transmit Clock DCE Source RC Receiver Clock DCE Source TC Transmitter Clock DTE Source TC Transmitter Clock DTE Source 48 2 5 DO FP MON NON Serer SP est Bes o ar O N OO WAN DOF gt APPENDIX E continued PATTON NETLINK E1 MODEL 2701RC EIA 530 INTERFACE PIN ASSIGNMENT DB
25. d 39 5 2 LOOP 54 amp TELCO DIAGNOSTICS The NetLink E1 offers three V 54 loop diagnostics and is com patible with two Telco loop diagnostics Use these diagnostics to test the CSU DSU and any communication links These tests can be acti vated via the software control port See Section 3 2 3 System Diagnostics via signals on the serial port interface or the front panel switch 5 2 1 Operating Local Loopback LL The Local Loopback LL test checks the operation of the local NetLink E17M and is performed separately on each unit Any data sent to the local NetLink E17M in this test mode will be echoed returned back to the user device i e characters typed on the key board of a terminal will appear on the terminal screen G 703 G 704 NTU G 703 G 704 NTU Model 2701 RC Model 2701 RC Serial Serial ena Recover Device dicii Clocking Device Clock Clock Data Data Clock 74 Data Data Model 2701 RC LLB Initiated Model 2701RC Figure 7 Local Loopback To perform a LL test follow these steps 1 Activate LL This may be done one of three ways a Enter Local Loop from the System Diagnostics Statistics menu and toggle the lt Spacebar gt until LL appears next to the BH Local Loop option b Activate the LL signal on the DTE If you are not sure which lead is the LL signal please refer to Appendix D Toggle the front panel switch to the
26. e Other single interface boards e g RS 530 are marked with the with FRONT on one side of the board 4 Re orient the interface board into the socket with the appropri ate interface pointed UP and with the arrow pointing toward the front panel of the Model 2701RC pc board 5 Push the Interface Driver Board gently onto the socket and re install into the 1001 rack 4 3 INSTALLING THE MODEL 2701RC INTO THE CHASSIS The Model 2701RC is comprised of a front card and a rear card The two cards meet inside the rack chassis and plug into each other by way of mating 50 pin card edge connectors Use the following steps as a guideline for installing each Model 2701RC into the rack chassis 1 Slide the rear card into the back of the chassis along the metal rails provided 2 Secure the rear card using the metal screws provided Slide the card into the front of the chassis It should meet the rear card when it s almost all the way into the chassis 4 Push the front card gently into the card edge receptacle of the rear card It should click into place 5 Secure the front card using the thumb screws NOTE Since the Model 1001R14 chassis allows hot swapping of cards it is not necessary to power down the rack when you install or remove a Model 2701RC 4 4 CONNECTING TO A DTE DEVICE The serial port on most rear interface cards are hard wired as DCE Data Circuit Terminating Equipment The interfaces are designed to plug into a DTE
27. f the setting of this switch The dip switches are enabled through the VT 100 screens NMS or by performing a hardware reset 52 7 Management Selection On NMS control Off VT 100 control SWITCH 52 8 IMPEDANCE Switch S2 8 is used to select the line build out for the Model 2701RC When using the 1001RCM11575 dual BNC rear card set S2 8 to OFF When using a 120 Ohm cable with RJ 45 connectors set S2 8 to ON S2 8 Setting 75 Ohm OFF 120 Ohm ON 10 3 2 CONFIGURING THE REAR INTERFACE CARD Prior to installation you will need to examine the rear card you have selected and make sure it is properly configured for your applica The Model 2701RC Series has five interface card options the tion Each rear card is configured by setting straps located on the PC Model 1001RCM12548C DB 25 RJ 48C the Model board To configure the rear cards you must set the configuration 1001 13448 M 34 RJ 48C the Model 1001RCM11548C DB straps Figure 4 below shows the orientation of these straps Each 15 RJ 48C the Model 1001RCM11575 DB 15 Dual BNC Each of strap can either be on pegs 1 and 2 or on pegs 2 and 3 these options supports one DTE interface connection and one 4 wire line connection Figure 3 below illustrates the five different interface options for the Model 2701RC Series Model Model Model Model Model 1001RCM11575 1001RCM11
28. hat to which the receiver is connected 1 3 CE NOTICE The CE symbol on your Patton Electronics equipment indicates that it is in compliance with the Electromagnetic Compatibility EMC directive of the European Union EU A Certificate of Compliance is available by contacting Patton Electronics Technical Support 1 4 SERVICE INFORMATION All warranty and non warranty repairs must be returned freight prepaid and insured to Patton Electronics All returns must have a Return Materials Authorization number on the outside of the shipping container This number may be obtained from Patton Electronics Technical Support at tel 301 975 1007 email support patton com www http www patton com NOTE Packages received without an RMA number will not be accepted Patton Electronics technical staff is also available to answer any questions that might arise concerning the installation or use of your Patton Model 2701RC Technical Services hours 8AM to 5PM EST Monday through Friday 2 0 GENERAL INFORMATION Thank you for your purchase of this Patton Electronics product This product has been thoroughly inspected and tested and is warrant ed for One Year parts and labor If any questions arise during installa tion or use of the unit contact Patton Electronics Technical Services at 301 975 1007 2 4 FEATURES Terminates E1 FE1 Circuits over a 4 Wire RJ 48C interface Connects to standard CPE Serial Interfaces Common Framed nx
29. ine coding and aggregate bandwidth System Diagnostics Statistics options allow you to monitor the network performance initiate V 54 loops local loops and send test patterns Network performance parameters are updated once a second giving you the ability to quickly deter mine if there is a problem Unit Options allow you to customize the Model 2701RC for your location You can change the default header names to give each unit a unique name and password Also you can reset the unit to its default settings without the manual It also has a Service Information screen in case you need technical assistance from Patton Save Changes Once you have configured the unit to your satisfaction you can save the changes permanently by exe cuting the Save Changes command This will update the unit s configuration and save all the parameters to permanent mem ory Logoff For security log off the control menu by executing the Logoff command This will blank the screen until an Enter key is pressed 21 3 3 4 System Configuration The System Configuration menu looks like this Parton El amp ecrronicas Zyutugm Configurmticon Tixrigumrart Line Formari Ling Ceding HOE TS Chmrral Beta Eiktpa looking Ling Build Gut E Lio ohn rncrmal 4 merringl Disabled zerring Disabled Taat frum DTE Erb lad 7 54 Loop Enabled contig Source EEPROM Ch
30. lation or use of this product shall be deemed an acceptance of these terms by the user In the event the user detects intermittent or continuous product malfunction due to nearby high power transmitting radio frequency equipment the user is strongly advised to use only data cables with an external outer shield bonded to a metal or metal ized connector 1 2 FCC INFORMATION This equipment has been tested and found to comply with the lim its for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communi cations Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense If this equipment does cause harmful interference to radio or television reception which be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the fol lowing measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from t
31. mote loopback mode RxTr Model 2701RC is receiving a terminate loopback message WE1s Model 2701RC is waiting for a sequence of all ones and will time out if it does not receive it IdleP Model 2701RC is sending a QRSS 511 or 2047 pat tern Off The Model 2701RC is in local loopback RDL Type V 54 default Options V 54 or CSU The user can set this switch to select the type of remote loop that will be initiated by the Model 2701 If set to V 54 the Model 2701 will initiate a V 54 loop when Remote Loop is selected by the front panel switches If set to CSU the Model 2701 will initiate a CSU loop when Remote Loop is selected by the front panel switches S2 3 RDL Type Off Initiate a V 54 RDL loop when selected On Initiate a CSU loopback when selected 29 Test Pattern Idle default Options Idle or Sending To send a pattern press the c key and press lt spacebar gt to send the test pattern The OK message indicates the received test pattern is error free The BE message indicates errors in the received pattern You may also hear a beep from your termainal once a second as long as the unit detects a bit error in the pattern Idle Indicates that Model 2701RC is not sending a pattern Sending Indicates that Model 2701RC is sending a pattern Error Insertion Off default Options On Off You may inject intentional errors into the test pattern by turning Error Insertion O
32. nd fuse replacement should only be per formed by qualified service personnel Contact Patton Electronics Technical Support at 301 975 1000 for more information 33 34 Powering up Your 1001814 Rack The power supplies that come with your 1001R14 rack system are equipped with a power entry connector on the rear power supply card The power supplies are Hot Swappable so you are not required to remove the cards from the rack while applying power to the system NOTE Please refer to the Model 1001R14 Series User Manual AC and DC Rack Mount Power Supplies for fuse and power card replacement information 4 2 INSTALLING THE INTERFACE DRIVER BOARD The DTE electrical interface on the 2701RC is determined by a DTE daughter board that is mounted on the main board by a 20 pin jumper Figure 10 shows the Interface Driver Board on the top of the 2701RC main board Interface Driver FRONT RS 530 Figure 10 Interface Driver Board Follow the instructions below to install or change the correct inter face for your application 1 With the 2701RC front card pulled out of the rack chassis locate the driver board on top of the 2701RC front card 2 Liftthe interface drive board gently off the main PC board 35 3 Locate the correct interface on the bottom of the driver board For example the RS 232 V 35 interface board is marked THIS SIDE UP FOR V 35 on one side and THIS SIDE UP FOR RS 232 on the other sid
33. nected Open JB4 FRGND amp SGND Pin B Connected Open ndicates default setting DTE Shield M 34 Pin A amp FRGND JB3 In the connected position this strap links M 34 pin A amp frame ground In the open position pin A is disconnected from frame ground JB3 Position 1 amp 2 DTE Shield Pin and FRGND Connected Position 2 amp 3 DTE Shield Pin A and FRGND Not Connected 14 SGND amp FRGND JB4 In the connected position this strap links Signal Ground and frame ground through a 100 ohm resistor In the open position signal ground is disconnected from frame ground c A Position 1 amp 2 Position 2 amp 3 SGND and FRGND Connected SGND and FRGND Not Connected 3 2 3 Model 1001RCM11548C Strap Settings Figure 7 shows strap locations for the Model 1001RCM11548C DB 15 rear cards These straps determine various grounding charac teristics for the terminal interface and twisted pair lines JB3 and JB4 are user configurable The table below provides an overview of interface strap functions JB3 MEM 123 TT JB4 mm 123 Figure 7 1001RCM11548C strap locations for the rear interface cards Following the table overview are detailed descriptions of each strap s function INTERFACE CARD STRAP SUMMARY TABLE 3 Strap Function Position 1 amp 2 Position 2 amp 3 JB3 DTE Shield 1 amp FRGND JB4 FRGND amp SGND Pin 8 Indicates default setting Connected Open
34. nfiguration except for the header lines and the password by executing the Set to Default Configuration command 32 4 0 INSTALLATION Service Information This section describes the functions of the Model 1001R14 rack If you need to contact us for help you can view the Service Information chassis tells how to install front and rear Model 2701RC Series cards screen Here is what it looks like into the chassis and how to connect to the twisted pair interface and the serial interface 4 1 THE MODEL 1001R14 RACK CHASSIS The Model 1001R14 Rack Chassis Figure 9 below has fourteen or sixteen device card slots plus a single power supply or dual redun dant power supplies Measuring only 3 5 high the Model 1001R14 is designed to occupy only 2U 19 rack Sturdy front handles allow the Model 1001R14 to be extracted and transported conveniently 1 2701RC Figure 9 Model 1001R14 Rack Chassis with power supply 4 1 1 The Rack Power Supply The power supply included in the Model 1001R14 rack uses the same mid plane architecture as the modem cards The front card of the power supply slides in from the front and the rear card slides in from the rear They plug into one another in the middle of the rack The front card is then secured by thumb screws and the rear card by conventional metal screws WARNING There are no user servicable parts in the power supply section of the Model 1001R14 rack Voltage setting changes a
35. ng CAS MF will detect a loss of sync v 54 Loops Enabled default Options Enabled Disabled This is a special in band loopback facility that sends a special pseudo random pattern over the data stream This is the only loopback that the unit can initiate This is useful for campus applications when you need to put a remote unit in loopback The unit responds to the V 54 loop back command and the whole process takes only a few seconds to complete When V 54 Loopback is disabled the unit will not be able to send or respond to V 54 loopback commands The duration of the loop back is limited by the loopback timeout setting While V 54 is being activated user data is overwritten Default Config Source Switch default Options EEPROM Switch The Model 2701RC can be initialized via the configuration in the on board permanent memory EEPROM or via the internal DIP switches Switch Once the unit is powered up you may change the settings through the control port or the DIP switches When you make changes through the control port no changes will take place or be saved to per manent memory until you Save Changes Main Menu option d Enter When you make changes through the switches all changes are made immediately 25 NOTE If you do not have a terminal you may force the unit to use the DIP switches as the default configuration source by turning off the unit setting all the DIP switches to the ON position then powe
36. on with the incoming sig nal This may happen when there is a fram ing mismatch or a loss of signal In unframed mode the LOS LED monitors the 38 ALM ERR TST PWR status of the transmit clock The alarm LED indicates the presence of a Blue or Yellow Alarm or Out of Frame con dition The ALM LED will blink on every half second Alarms may occur due to Loss of Synchronization Loss of Frame AIS Blue Alarm RAI Yellow Alarm The error LED indicates various error condi tions including framing bit errors excessive zeros controlled slips severe errors or bit errors when sending V 52 test patterns When sending a test pattern the LED will remain lit if the unit does not receive the identical pattern When it receives the cor rect pattern the LED will turn off If error insertion is on the LED will blink once a second if everything is operating properly The test indicator LED blinks with a specific pattern depending on the type of test mode When the unit is in local analog loop the LED will blink on briefly When the unit is in remote loop the TST LED will blink off briefly When the unit is sending a test pat tern or is putting the remote unit into V 54 CSU loopback the TST LED will stay on These are the test modes V 54 CSU Loopback amp V 52 Patterns Local Loopback The power indicator LED will remain lit while the unit is powered It turns off when the unit is not powere
37. osition 2 amp 3 JB3 DTE Shield Pin1 amp FRGND Connected Open JB4 FRGND amp SGND Connected Open Indicates default setting DTE Shield DB 25 Pin 1 amp FRGND JB3 In the connected position this strap links DB 25 pin 1 amp frame ground In the open position pin 1 is disconnected from frame ground JB3 Position 1 amp 2 DTE Shield Pin 1 and FRGND Connected Position 2 amp 3 DTE Shield Pin 1 and FRGND Not Connected SGND amp FRGND JB4 In the connected position this strap links DB 25 pin 7 Signal Ground and frame ground through a 100 ohm resistor In the open position pin 7 is connected directly to frame ground JB4 Position 1 amp 2 SGND Pin 7 and FRGND Connected through a 100 ohm resistor Position 2 amp 3 SGND Pin 7 and FRGND Directly Connected 13 3 2 2 Model 1001RCM13448C Strap Settings Figure 6 shows the strap location for the Model 1001RCM13448C M 34 rear card This strap determines whether Signal Ground and Frame Ground will be connected _ ce Figure 6 1001RCM13448C strap locations The table below provides an overview of interface strap functions for the rear interface cards Following the table overview are detailed descriptions of each strap s function INTERFACE CARD STRAP SUMMARY TABLE 2 Strap Function Position 1 amp 2 Position 2 amp 3 JB3 DTE Shield Pin A amp FRGND Con
38. ostics Statistics screen looks like this i FO maures Patton Electreonies System Dimgraskic rcm Maru Marugqemrrnt zTi1Dh pate iar rr sm Card Addres ACTI Tte Highlighted latter char prisas pace Lobe l bl Hp3al 2701R0 El CET NOTE This screen is updated once per second The System Diagnostics Statistics options and functions are described below Local Loop Idle default Local Loop is a bi lateral loopback in which the data from the local DTE and the data from the remote unit are looped back to their respec tive sources See Section 5 3 Activate this loop to test the each of the DTE s connection to the Model 2701RC 27 The Local Loop test has four states Idle No user controlled loopbacks are active LL The Model 2701RC is in local loopback mode Off The Model 2701RC is in remote loopback mode or send ing a pattern Local loopback is disabled LocP Model 2701RC is in Local Loopback mode and is sending a test pattern Remote Loop Idle default The Remote Digital Loopback RDL test checks the performance of both the local and remote Model 2701RCs as well as the communi cation link between them Data from the local DTE is sent across the entire communication circuit and looped back to the local DTE The Model 2701RC Initiating a RL can be in one of the following state
39. r CRC 4 MF When CRC 4 is enabled the unit monitors the incoming data stream for CRC 4 errors It trans mits CRC 4 error counts to the transmitting unit When using timeslot zero TSO excessive errors may cause loss of frame or loss of sync If CRC 4 MF is used both units must be set for set for CRC 4 MF Otherwise the one using CRC 4 MF will detect loss of sync 52 2 Option Off CRC 4 Disabled On CRC 4 Enabled NOTE When the data rate is set to 2 048Mb s then the unit is forced into G 703 mode and it transmits user data on all 32 time lots There is no framing information therefore the CRC4 MF S2 2 switch is ignored In all other rate settings the unit employs G 704 framing TSO is reserved for signaling SWITCH S2 3 REMOTE DIGITAL LOOPBACK TYPE The user can set this switch to select the type of remote loop that will be initiated by the Model 2701 If set to V 54 the Model 2701 will initiate a V 54 loop when Remote Loop is selected by the front panel switches If set to CSU the Model 2701 will initiate a CSU loop when Remote Loop is selected by the front panel switches 2 3 RDL Type Off Initiate a V 54 RDL loop when selected On Initiate a CSU loopback when selected SWITCH S2 4 RDL RESPONSE V 54 and CSU Loopbacks are special in band loopback facility that sends a pseudo random pattern over the data stream This is useful for campus applications when you need to put a remote unit in loopback The unit responds to the
40. ring on the unit This will cause the unit to enter a special mode Then turn off the unit and change the switch settings to the desired settings When you turn the unit on again the unit will be set up with the selected switch settings DSO Channel Configuration Menu Bandwidth Channels 2 048k na default The Channel Configuration Menu has a sub menu that looks like this we EE 0 UE RES 2701RC You may configure the Model 2701RC to operate with any combination of active and inactive DSO channels in this screen When you execute the Save Changes command the selected settings will be saved to permanent memory and the system will be updated to operate with the new channel settings NOTE In Unframed format the Bandwidth Selected will display 2 048k and the Total Channels will display When using the DIP switches to set the bandwidth the starting channel is always channel 1 or 0 26 Front Panel Switches enabled default Options enabled disabled As the Front Panel Switches may be inadvertently toggled or in the event that the end user may not need to use the switches the installer may disable the front panel switches Set Switch S2 6 to determine whether the front panel toggle switches are enabled or disabled 52 6 Option On Front Panel Switches Enabled Off Front Panel Switches Disabled 3 2 3 System Diagnostics The System Diagn
41. rmance tested by Patton technicians using twisted pair cable with the following charac teristics Wire Gauge Capacitance Resistance 19 AWG 83nf mi or 15 72 pf ft 0163 Ohms ft 22 ANG 83nf mi or 15 72 pf ft 0326 Ohms ft 24 ANG 83nf mi or 15 72 pf ft 05165 Ohms ft To gain optimum performance from the Model 2701RC Series please keep the following guidelines in mind Always use twisted pair wire this is not an option Use twisted pair wire with a capacitance of 20pf ft or less Avoid twisted pair wire thinner than 26 AWG i e avoid AWG numbers higher than 26 Use of twisted pair with a resistance greater than the above specifications may cause a reduction in maximum distance obtain able Functionality should not be affected Many environmental factors can affect the maximum distance obtainable at a particular site 45 APPENDIX C PATTON NETLINK E1 MODEL 2701RC FACTORY REPLACEMENT PARTS AND ACCESSORIES Patton Model Description 2TOT1RC DN E1 FE1 CSU DSU Rack Card X 21 Interface w DB15FS RJ48C rear card 27O1RC BIB E1 FE1 CSU DSU Rack Card RS530 Interface with DB25F RJ48C Rear Card 2TOT1RC A esses E1 FE1 CSU DSU Rack Card V 35 Interface with M 34F RJ48C Rear Card 1001RPEM RAC 120 240V Rear Power Entry Module 1001RPEM RAC 120 240V Rear Power Entry Module 1001RPSM RUI 120 240V Front Power Supply Module 100
42. ry switches S3 and S4 which are used to set the address of the card Figure 8 below shows a close up of Default terminal type VT 100 53 54 and the addressable digits Local Echo Off 53 64 Add Line Feeds after CRs Off Received Backspace Destructive On 5 6 5 Backspace key sends BS e XON XOFF software flow control On CTS RTS hardware flow control Off 4 0 0 DSR DTR hardware flow control Off Figure 8 Close Up of Switches S3 and S4 Switches S3 and S4 Card Address 5 Install the 2701RC and the 1001CC Control Card into the rack system see Section 4 0 Installation page 32 to install the Switches S3 and S4 are used to set the address of the card 2701RC see the 1001CC User Manual to Install the Model Switch S4 is the tens place digit and S3 is the ones place digit 1001CC Card and to connect the RS 232 port Following are examples of address settings Default Address 00 6 After your 2701RC units are installed and you have set up 54 S3 RDL Type your Model 1001CC and VT 100 terminal as described above 0 4 Card Address 04 you are ready to access the 2701RC cards This is done by 5 2 Card Address 52 selecting the address for a card using the command Ctrl b 8 6 Card Address 86 address CR For example if your 2701RC has an address of 64 type the following Ctrl b Hold down the Ctrl key and depress the b character 64 Type in the address 64
43. s Idle No user controlled loopbacks are active TxPr Model 2701RC is sending the preparatory phase pat tern lasting for approximately 2 5 seconds WtAk Model 2701RC is waiting for an acknowledgement from the remote unit If the remote unit does not respond the WtAk message will remain on the screen RxAk The Model 2701RC has received an acknowledgement from the remote unit Tout The Model 2701RC is waiting before entering the Remote Loopback test mode TM The Model 2701RC has successfully negotiated the Remote Loopback test and is in control of the remote unit You may send a test pattern at this point by press ing d lt spacebar gt TxTr The Model 2701RC is sending a Terminate Loopback message to the remote unit If the remote unit does not respond the local unit will return to the Idle state 28 Txis Ifthe remote Model 2701RC responds to the local Model 2701RCs terminate loopback request the local unit then sends an all ones pattern before returning to the Idle state TxP The Model 2701RC is sending a test pattern while in Test Mode IdIP The Model 2701RC is sending a test pattern in place of data The Model 2701RC is not in test mode The Model 2701RC receiving a RL can be in one of the following states RxPr Model 2701RC is receiving a preparatory pattern Sack Model 2701RC upon receiving a preparatory pat tern sends an acknowledgement message RL The Model 2701RC is in re
44. s however that a long sequence of zeros in the data stream will cause problems since the NTU receiving the signal relies on the signal to recover the 2 048 Mb s clock If you must use AMI you should ensure that the data terminal equipment connected to the unit provides a minimally accept able pulse density For this reason there are advantages to using HDB3 instead 23 Clocking Network default Options Network Internal External Network This is the most commonly used setting when connect ing to a carrier s network In this mode the unit recovers the clock from the received signal and uses it to transmit data In this way the unit remains synchronized to a master clock In campus applications one of the units must be set to Internal clock and the other end is set to Network clock At all times there must be only one clock source Otherwise clock slips and framing errors and bit errors may occur Internal This is commonly used in campus applications where the unit is not connected to the public telephone network directly In this mode the unit uses the on board oscillator as the transmit clock source External In this mode the unit requires a clock signal from the DTE via the external clock pin on the DTE interface connec tor Most applications will use Network or Internal clock modes Line Build Out 120 Ohm default Options 120 Ohm 75 Ohm 120 Ohm Use with 120 Ohm RJ 48C connector 75 Ohm Use with the
45. such as a terminal PC or host computer When making the connection to your DTE device use a straight through cable of the shortest possible length we recommend 6 feet or less When purchasing or constructing an interface cable please refer to the pin diagrams in Appendix D and Appendix E as guides 36 4 5 CONNECTING TO DCE DEVICE The rear interface cards on most interface modules are hard wired as DCE Therefore you must use a null modem cable when necting to a modem multiplexer or other DCE device This cable should be of the shortest possible length we recommend 6 feet or less When purchasing or constructing a null modem interface cable use the pin diagrams in Appendix C as a guide NOTE Pin out requirements for null modem applications vary between equipment manufacturers If you have any questions about a specific installation please contact Patton Electronics Technical Support 4 6 CONNECTING THE E1 INTERFACE The Network Line Interface is an eight position keyed modular jack configured as a RJ 48C This interface will need to be configured to match the line parameters i e framing line coding etc supplied by the central office 1 RX Data TIP RX Data RING 3 no connection 2 TX Data aa TX Data RING mcm no connection Uu no connection no connection NOTE If the Figure 11 NetLink E 1 twisted pair line interface From Network To Network NetLink
46. tion on the combination of characters you can use so be sure to remember the password The password is case sensitive If you lose your password you will lose the ability to access the unit via the control port 31 GJ Loop Timeout The Loop Timeout setting can be set to one of the following 00 05 five minutes 00 10 ten minutes 00 15 fifteen minutes 00 30 thirty minutes default setting 00 45 forty five minutes 01 00 one hour 01 30 90 minutes 02 00 two hours 03 00 three hours NEVER forever the unit will remain in loopback without user intervention Tx Data Clock Internal Tx Clock default Options Internal Tx Clock or External Tx Clock Switch S2 7 selects the clock that is used to accept the Transmit Data from the DTE interface Standard DTE interfaces will transmit data with respect to the External Clock In some cases a DTE interface will transmit with respect to the Transmit clock sent out from the 2701RC Please review the information provided with your DTE equipment for more information on its operation In most cases when there are errors on the line only in the direction of the transmit data S2 7 can be changed to solve the problem S2 7 Tx Clock Select Off Transmit data accept with respect to the transmit clock from the 2701RC On Transmit data accept with respect to the external clock from the DTE Set to Default Configuration You may set the Model 2701RC to its factory default co
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