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T-BERD 307 DS3/DS1 ANALYZER USER`S MANUAL

1. DS1 Drop From DS3 Instrument Checkout 1 17 051 Input Specifications 1 12 DS1 LOGIC Category Test Results 4 10 051 Measurements Specifications 1 14 DS1 Output Specifications 1 13 DS1 REF Jack 1 7 DS1 RX Jack 1 7 051 SIGNAL Category Test Results 4 13 DS1 SUMMARY Category Test Results 4 10 051 Test Configuration Menu 2 13 ALARM selection 2 19 BURST selection 2 19 CODE selection 2 16 DROP selection 2 17 ER RT selection 2 18 ESFLP selection 2 20 FRAME selection 2 14 LCODE selection 2 20 LPDN selection 2 20 LPSND selection 2 20 LPUP selection 2 20 PATT selection 2 15 RXLEV selection 2 17 Index 1 Index SLIPR selection 2 18 SRC selection 2 13 TX selection 2 17 TXLVL selection 2 17 TXTIM selection 2 18 USERI selection 2 19 DS1 Test Results BPV FRM category 4 11 LOGIC category 4 10 SIGNAL category 4 13 SUMMARY category 4 10 TIME category 4 14 DS1 TIME Category Test Results 4 14 DS1 TX Jack 1 7 DS3 Alarm Criteria 1 11 DS3 BERT Instrument Checkout 1 16 053 BPV FRM Category Test Results 4 5 DS3 FEAC Message and Loop Code Test Results 4 2 053 Input Specifications 1 10 053 LOGIC Category Test Results 4 3 DS3 Measurements Specifications 1 11 053 Output Specifications 1 10 053 RX Jack 1 7 053 SIGNAL Category Test Results 4 7 DS3 SUMMARY Category Test Results 4 1 053 Test Configuration Menu 2 2 AIS selection 2 9 ALARM selection 2 8 Index 2 ALMIN selection 2 8 BURST selection 2 8 DR
2. AUG SEP OCT NOV DEC Use the RESULT switch to set the Day 1 to 31 Set the Month first then the Day is limited to the maximum number for that month BKLGT Backlight Selects the display backlight condition Use the SELECT switch to toggle between ON and OFF VOLUM Volume Sets the speaker Volume level Use the SELECT switch to set the Volume 0 to 10 BEEP Selects the status of the audible tone Use the SELECT switch to toggle between Beep ON and Beep OFF SWREV Software Revision Level It displays the software revision level in format and the date the software was installed in MM DD YY format 10 29 99 4 1 4 2 4 2 1 10 29 99 SECTION 4 TEST RESULTS Introduction SECTION 4 TEST RESULTS INTRODUCTION This section provides information on the T BERD 307 test results The test results are divided into two sections DS3 Test Results and 051 Test Results DS3 TEST RESULTS The 053 receiver has full Bit Error Rate Test BERT capabilities and supports all the DS3 results defined in the following sections The available results depend framing type pattern synchronization etc Results that are not available display the message UNAVAILABLE in place of the result count The results that are not applicable to the current mode display N A in place of the result count When the displayed count exceeds 99 999 999 a gt greater than sign appears in the window When the number ro
3. LPSND LPSND Loop Code Send sets the T BERD 307 to transmit the appropriate loop code The choices are as follows LOOPING UP Transmits the selected loop up code NOT SENDING Does not transmit any loop code LOOPING DOWN Transmits the selected loop down code 10 29 99 2 5 2 5 1 10 29 99 SECTION 2 User Interface Description Printout generation PRINTOUT GENERATION Standard RS 232 serial printers like the PR 40A Thermal Printer can be connected to the T BERD 307 to provide test results printouts Printout capability is provided via the Auxiliary Port Connector on the lid panel If printer is not attached to the Auxiliary Port Connector the T BERD 307 stores the printouts in nonvolatile memory NOVRAM until a printer is available Auxiliary functions are used to select the interface parameters of baud rate parity and line terminator Column length is preset to 40 characters The default interface parameter settings match the PR 40A Thermal Printer parameters Connecting the Printer Perform the following procedure to connect the TTC PR 40A Thermal Printer to the T BERD 307 1 Ensure the printer is turned off 2 Turn on the T BERD 307 3 Verify the T BERD 307 interface parameters match the serial printer parameters by checking the BAUD PRITY and TRMTR auxiliary functions 4 Connect the printer to the T BERD 307 using an 8 pin round to 25 pin D type cable 5 Turn on the printer 6
4. activate the printout Use the SELECT switch to choose DS3 051 or DS3 DS1 results printout PEVNT Print Event Allows the printing of test results at the end of a timed test Use the SELECT switch to toggle between TEST END and OFF 3 1 SECTION 3 AUXILIARY FUNCTIONS Auxiliary Functions 3 2 BAUD Baud Rate Selects the RS 232 interface baud rate Use the SELECT switch to choose 4800 or 9600 PRITY Parity Selects the RS 232 interface parity condition Use the SELECT switch to choose EVEN ODD or NONE TRMTR Line Terminator Selects the RS 232 interface line terminator Use the SELECT switch to choose CR carriage return LF Line Feed or CRLF both T MOD Timing Mode Selects the test timing mode Use the SELECT switch to toggle between TIMED and CONTINUOUS If TIMED is selected the test length is set using the T LEN auxiliary function T LEN Timed Test Length Sets the amount of time in HHH MM Hours Minutes format that a timed test is to run Use the CATEGORY switch to set the Hours 000 to 999 Use the RESULT switch to set the Minutes 00 to 59 Use the SELECT switch to save the settings TIME Sets the time in HH MM Hours Minutes format Use the CATEGORY switch to set the Hours 00 to 23 Use the RESULT switch to set the Minutes 00 to 59 DATE Sets the date in MMM DD Month Day format Use the CATEGORY switch to set the Month JAN FEB MAR APR MAY JUN JUL
5. 1 4 1 InttodUctioD 4 1 4 2 1953 2 oso ae aa AE ek 4 1 4 2 1 SUMMARY Category Test Results 4 1 4 2 2 FEAC Message and Loop Code Summary Test Results 4 2 4 2 3 LOGIC Category Test Results 4 3 4 2 4 BPV FRM 4 5 4 2 5 SIGNAL Category esee PE ND SERRE 4 7 4 2 6 TIME Category SE be us 4 8 4 3 DSI T stResults 209b e ger 4 0 10 29 99 v SECTION DESCRIPTION PAGE 4 3 1 SUMMARY Category Test Results 4 10 4 3 2 LOGIC Cate bory as cere seek was BONES RU REY 4 10 4 3 3 BPV FRM Category 4 11 4 3 4 SIGNAL ee 4 13 4 3 5 ceo cl eue 4 14 5 APPLICATION CARDS 5 1 5 1 Introductio geet oe TERA AN E OPES 5 1 vi 10 29 99 FIGURE 1 1 1 2 2 1 2 2 2 3 TABLE 1 1 1 2 1 3 1 5 1 6 1 7 1 8 4 1 4 2 4 3 LIST OF FIGURES DESCRIPTION T BERD 307 Front Panel Top Panel Connectors User Interface Controls Printout Pop up Window Sample Results Printout LIST OF TABLES DESCRIPTION Front Panel Controls and Indicators Top Panel Connectors Lid Panel Controls Indicators and Con
6. 1 second increments 2 3 11 ALARM ALARM to be inserted into the signal The choices are as follows AIS Selects the Alarm Indication Signal RDI Selects the Remote Defect Indicator Signal 2 3 12 ALMIN ALMIN Alarm Insert toggles the alarm insert function The choices are as follows OFF Turns off alarm insertion ON Turns on alarm insertion 2 6 10 29 99 2 3 13 2 3 14 2 3 15 2 3 16 SECTION 2 User Interface Description DS3 Test Configuration Menu X BIT X BIT selects the X bit value The choices are as follows 00 01 10 and 11 Selects the value for the X bits EMULATE Causes the T BERD 307 to automatically transmit the X bits according to the received signal frame status If the received framing is lost 00 Yellow Alarm is transmitted If the received framing 15 valid 11 no Yellow Alarm is transmitted NOTE If either pattern IDLE 1100 or BLUE 1010 is transmitted the T BERD 307 overrides the 00 bit pattern and transmits 11 AIS AIS Alarm Indication Signal selects the AIS transmit and detection criteria The choices are as follows 1010 The T BERD 307 declares an AIS alarm if the received signal contains a 1010 pattern STUCK C BIT The T BERD 307 declares an AIS alarm if the received signal C bits are set to zero and the signal contains a 1010 pattern FRMTH FRMTH Frame Loss Threshold selects the threshold value that will be identified as a fr
7. LOGIC Category Logic errors are based on discrepancies between the transmitted and received bits The accumulation of logic errors is dependent on frame synchronization if in a framed mode and pattern synchronization Logic errors are not available until initial pattern synchronization is obtained During loss of frame or pattern synchronization the accumulation of errors is halted The DS1 LOGIC category test results are defined as follows BIT ERRORS Bit Errors The number of received bits with a value opposite the transmitted bit since initial pattern synchronization BIT ERR RT Bit Error Rate The ratio of bit errors to received bits since initial pattern synchronization 10 29 99 SECTION 4 TEST RESULTS 051 Test Results BIT ERR SEC Bit Errored Seconds The number of seconds with one or more bit errors since initial 051 pattern synchronization SYNC L SEC Out of Synchronization Seconds The number of seconds during which the receiver has lost pattern synchronization even momentarily since initial 051 pattern synchronization AVAIL SEC Available Seconds count of seconds with no errors since initial pattern synchronization AVAIL SEC Percent Available Seconds The ratio of available seconds to total seconds since test start SEV ERR SEC Severely Errored Seconds The number of seconds with a BER worse than 10 SEVERR SEC Percent Severely Errored Seconds The ratio e
8. RESULT SUMMARY O 4 LOGIC BPV FRM v v SIGNAL O TIME O MODE RESULTS O 4 053 051 LOGIC O os of of ERROR INSERT Figure 1 1 T BERD 307 Front Panel 1 6 10 29 99 SECTION 1 GETTING STARTED Instrument Description 1 2 2 Top Panel Connectors The top panel of the T BERD 307 is shown in Figure 1 2 with each connector marked with a numbered callout Table 1 2 provides a brief description of each control indicator and connector referenced to the numbered callouts in Figure 1 2 Table 1 2 Top Panel Connectors Connector Description 560A jack used to receive the 053 signal from the circuit A 560A jack used to transmit a 053 signal to the circuit 053 RX Jack DS3 TX Jack A Bantam jack connector used to connect DS1 REF Jack an external reference clock source A Bantam jack used to receive the 051 DS1 RX Jack M signal from the circuit A Bantam jack connector used to connect 051 TX Jack HE the output signal to the circuit Figure 1 2 Top Panel Connectors 10 29 99 1 7 SECTION 1 GETTING STARTED Instrument Description 1 2 3 Lid Panel Controls Indicators and Connectors The lid panel of the T BERD 307 provides connections for accessories and the POWER switch Table 1 2 provides a brief description of each control indicator and connector on
9. The pattern is aligned with the D4 F bits to prevent false Yellow Alarms 104 1004HZ 1004 Hz tone that is transmitted over the selected DS1 channel tone is phase shifted between adjacent DSO channels to prevent Yellow Alarms T1D4 LPUP A loop up code selected with the LCODE 053 setup function 7104 LPDN loop down code selected with the LCODE 053 setup function 1 QRSS A modified 22 1 pseudorandom pattern with a maximum of 14 sequential 0 and 20 sequential 175 The TIESF QRSS pattern simulates live data for 1 applications 1 3 24 A fixed test pattern of F0100 0100 0000 0000 0000 0100 The pattern is aligned with the ESF F bits T1ESF 1 7 A fixed test pattern of F01000000 T1ESF 1004HZ 1004 Hz tone which is transmitted over the selected DS1 channel T1ESF LPUP A loop up code selected with the LCODE 053 setup function 1 LPDN A loop down code selected with the LCODE 053 setup function 2 5 SECTION 2 User Interface Description 053 Test Configuration Menu 2 3 3 2 3 4 2 3 5 2 6 The choices for 051 INSERT are as follows EXTERNAL 051 An external 051 signal from the DS1 RX jack is inserted INTERNAL DS1 An internally generated DS1 signal is inserted DROP DROP enables selection of the 051 channel to be dropped The choices are as follows 1 to 28 Drops the selected DS1 channel INS INSert enables select
10. alarm selected in ALARM The choices are as follows OFF Turns off alarm insertion ON Turns on alarm insertion USER1 USER User Programmable Pattern sets the 3 to 24 bit programmable pattern Use the CATEGORY switch to move the cursor to the bit to be set Use the RESULT switch to toggle the bit between 1 and 0 Use the SELECT switch to save the pattern SECTION 2 User Interface Description DS1 Test Configuration Menu 2 4 16 2 4 17 2 4 18 2 4 19 2 4 20 2 20 LPUP LPUP Programmable Loop Up Pattern programs a 3 to 8 bit user defined loop up code Use the CATEGORY switch to move the cursor to the bit to be set Use the RESULT switch to toggle the bit between 1 and 0 Use the SELECT switch to save the pattern LPDN LPDN Programmable Loop Down Pattern programs a 3 to 8 bit user defined loop down code Use the CATEGORY switch to move the cursor to the bit to be set Use the RESULT switch to toggle the bit between 1 and 0 Use the SELECT switch to save the pattern ESFLP ESFLP ESF Loop Code Type toggles the ESF Loop Code Type between IN BAND and OUT OF BAND LCODE LCODE Loop Code Type selects the loop code type to be transmitted The choices are as follows CSU Selects the customer service unit CSU loop code type FACILITY 1 Selects the Facility 1 NIU loop code type FACILITY 2 Selects the Facility 2 NIU loop code type PROGRAMMABLE Selects the programmable loop code
11. is used to highlight the active selection and the SELECT switch is used to cycle through the available choices SRC SRC DS1 Source enables toggling of the DS1 source The choices are EXTERNAL Configures the T BERD 307 to test the DS lat the DS1 RX jack DS3 DROP Configures the T BERD 307 to test the DSI dropped from the DS3 signal 2 13 SECTION 2 User Interface Description DS1 Test Configuration Menu 2 4 2 2 14 FRAME FRAME enables selection of the data format for transmission and analysis The choices are D4 Configures the T BERD 307 to test D4 framed signals ESF Configures the T BERD 307 to test ESF framed signals SLC 96 Configures the T BERD 307 to test SLC 96 framed signals AUTO Configures the receiver to automatically scan and synchronize to the input signal framing and pattern After achieving synchronization the transmitter regenerates the framing and test pattern without errors When the framing format is recognized the framing format name appears in lowercase characters in the display If live data is declared the transmit timing defaults to Recovered If the received signal is recognized as a test pattern the following actions occur The test pattern name appears in lowercase characters The transmitter is configured to generate the recognized framing format and test pattern Logic and BPV errors can be inserted Full 051 logic BPV parity frame and s
12. of logic errors is dependent on frame synchronization if in a framed mode and pattern synchronization Logic errors are not available until initial pattern synchronization The results are also not available when transmitting a channelized test pattern i e the operating mode is set for MUXED M13 or MUXED C BIT During loss of frame or pattern synchronization the accumulation of errors is halted The 053 ERRORS category test results are defined as follows BIT ERRORS Bit Errors The number of received bits with a value opposite the transmitted bit since DS3 pattern synchronization 10 29 99 4 3 SECTION 4 TEST RESULTS 053 Test Results 4 4 BIT ERR RT Bit Error Rate The ratio of bit errors to received pattern bits over the previous 108 bits BIT ERR SEC Bit Errored Seconds The number of seconds with one or more bit errors since initial DS3 pattern synchronization SYNC L SEC Synchronization Loss Seconds The number of seconds during which the receiver has lost pattern synchronization even momentarily since initial 053 pattern synchronization AVAIL SEC Available Seconds A count of elapsed seconds since pattern synchronization with a BER less than 10 AVAIL SEC Percent Available Seconds percentage of available seconds to total seconds SEV ERR SEC Severely Errored Seconds A count of seconds with a bit error rate worse than 1073 SEVERR SEC Percent Severely Erro
13. the lid panel Table 1 3 Lid Panel Controls Indicators and Connectors Connector Description Press the POWER switch to turn the unit on or off The EXT Power LED illuminates to indicate that external AC power is being EXT Power LED supplied to the T BERD 307 The external AC power source can be used to power the unit and charge the battery POWER Switch The External Power connector is used with the AC Power Adaptor to provide external power to the T BERD 307 The Auxiliary Port Connector is an 8 pin round connector used to connect the Software Upgrade Module External Power Connector Auxiliary Port Connector 1 8 10 29 99 1 3 SPECIFICATIONS SECTION 1 GETTING STARTED Specifications The specifications for the analyzer are presented in the following paragraphs 1 3 4 General Specifications The general specifications for the analyzer are presented in Table 1 4 Table 1 4 Specification Specifications Value Physical Characteristics Height Width Depth Weight 8 5 21 6 cm 4 25 10 8 cm 3 25 8 3 cm 4 1 Ib 1 9 kg Environmental Characteristics Temperature Operating Non Operating Humidity 32 F to 104 F 0 C to 40 C 4 F to 140 F 20 C to 60 C 10 to 90 Relative Humidity non condensing Electrical Characteristics Battery Type Operating Time Storage Period 10 29 99 12 V Sealed lead aci
14. 053 Equipment Failure Non Service Affecting Type 2 equipment failure 053 Equipment Failure Service Affecting Type 1 equipment failure DS3 L H DS3 Loss of Signal High Bit Error Ratio DS3 EF SA DS3 Out of Frame Loss of DS3 Frame DS3 OOF wives Synchronization DS3 AIS RX DS3 Alarm Indication Signal Received DS3 IDLE RX DS3 Idle Signal Received COMM EF NSA Common Equipment Failure Non Service Affecting Type 2 equipment failure 4 2 DS1 EF NSA DS1 Equipment Failure Non Service Affecting Type 2 equipment failure DS1 Equipment Failure Service Affecting Type 051 EF SA 1 equipment failure 10 29 99 SECTION 4 TEST RESULTS 053 Test Results Table 4 1 Far End Alarm and Control Messages Continued Message Description SING DS1 L H Single DS1 Loss of Signal High Bit Error Ratio MULT DS1 L H Multiple DS1 Loss of Signal High Bit Error Ratio Table 4 2 Far End Loop Codes Loop Code Description ALL DS1 LPDN DS1 Lines loop down code ALL DS1 LPUP DS1 Lines loop up code DS1 xx LPDN DS1 Line No xx loop down code xx 1 to 28 DS1 xx LPUP 051 Line No xx loop up code xx 1 to 28 DS3 LN LPUP 053 Line loop up code 053 LN LPDN 053 Line loop down code 4 2 3 LOGIC Category Test Results Logic errors are based on discrepancies between the transmitted and received bit stream accumulation
15. 1111 1111 0001 1100 Loop up 1111 1111 0010 1000 Loop down 1111 1111 0100 1100 Loop up 1111 1111 0100 1000 Loop down 1111 1111 0010 0100 SECTION 1 GETTING STARTED Specifications 1 38 051 Measurements 051 Analysis Option Frequency Range Accuracy Resolution Received Level Range Accuracy Resolution Vp p Range Vp p Resolution Simplex Current Range Accuracy Resolution Voltage Drop DS1 Timing Slips Range Resolution 1 544 000 5000 Hz 5 ppm 1 Hz 6 dBdsx to 40 dBdsx 1 0 dB between 6 and 10 dBdsx 2 0 dB between 10 and 20 dBdsx 3 0 dB between 20 and 40 dBdsx 0 1 dB between 6 and 6 dBdsx 0 5 dB between 6 and 40 dBdsx 60 mV to 12 0 V 0 05 V 10 mA to 180 mA X596 mA 8 5 volts nominal at 60 mA 0 to 999 frame slips and 192 bit slips 1 bit slip 1 3 9 051 Alarm Criteria DS1 Analysis Option Signal Loss Frame Loss D4 ESF SLC 96 150 ms without input pulses after valid frequency and level are detected 2 out of 5 Ft bits in error 2 out of 5 frame bits in error 2 out of 4 Ft bits in error 10 29 99 1 4 1 4 1 10 29 99 Pattern Loss QRSS Fixed Pattern Ones Density QRSS Other Patterns Excess Zeros AMI B8ZS RDI Yellow Alarm D4 ESF SLC 96 AIS Low Battery SECTION 1 GETTING STARTED Instrument Checkout 250 errors detected in 1000 or fewer bits 100 errors detected in 1000 or f
16. 29 99 2 23 SECTION 2 User Interface Description Printout generation 2 24 10 29 99 3 1 3 2 10 29 99 SECTION 3 AUXILIARY FUNCTIONS Introduction SECTION 3 AUXILIARY FUNCTIONS INTRODUCTION Auxiliary functions allow access to parameters not frequently used and not having dedicated switches The auxiliary functions appear in the front panel display The CURSOR SELECT CATEGORY and RESULT switches are used to manipulate the auxiliary functions as follows CURSOR switch Pressed to scroll through the auxiliary functions that appear in the front panel display SELECT switch Pressed to scroll through or toggle the parameters of the selected auxiliary function In some auxiliary functions the SELECT switch is used to save parameter changes to memory CATEGORY switch Used to change or enter auxiliary function information RESULT switch Used to change or enter auxiliary function information AUXILIARY FUNCTIONS The T BERD 307 auxiliary functions contain general setup configuration items for the test set and enable the printing of test results Pressing the AUX switch activates the Auxiliary Functions Display The following paragraphs provide a description of each auxiliary function the selection choices available for the function and how the function is selected or edited PRINT Printout Selection Selects the results printout type and opens a window that enables you to clear the print buffer or
17. 50 15051 01 Rev T BERD 307 053 051 ANALYZER USER S MANUAL AUGUST 1997 Software Level B This User s Manual applies to all T BERD 307 DS3 Communications Analyzers Incorporating Software Level B x 1996 Telecommunications Techniques Corporation amp 20400 Observation Drive Germantown Maryland 20876 800 638 2049 301 353 1550 FAX 301 353 9216 WWW Address http www ttc com Specifications terms and conditions are subject to change without notice trademarks and registered trademarks are the property of their respective companies TABLE OF CONTENTS SECTION DESCRIPTION PAGE 1 GETTING STARTED 1 1 1 1 Manual OvervieW 222222222 Rabe RE RR p 1 1 1 2 Instrument Description 1 2 1 2 1 Front Panel Controls Indicators and Connectors 1 3 1 2 2 Top Panel Connectors 1 7 1 2 3 Lid Panel Controls Indicators and Connectors 1 8 1 3 Specifications EE EEN ENEE E ENEE E RE 1 9 1 3 1 General Specifications 1 9 1 3 2 053 Input Specifications 1 10 1 3 2 1 Roe eu e 1 10 1 3 3 053 Output Specifications 1 10 1 3 3 1 TX Jack cools eres ERE e sapeva 1 10 1 3 4 DS3 Measurements 1 11 1 3 5 DS3 Alarm Criteria 222022222222 24 1 11 1 3 6 DS1 Input Specifications DS1 Analys
18. 7 LEDs battery low LED 1 4 EXT Power 1 8 status alarm group 1 4 Lid Panel Controls Indicators and Connectors 1 8 LOGIC Category 053 test results 4 3 4 5 4 7 4 8 4 10 4 11 4 13 4 14 Manual Overview 1 1 MODE Switch 1 3 2 1 Index 3 Index POWER Switch 1 8 Preventive Maintenance 1 20 exterior cleaning 1 20 exterior inspection 1 20 R RESTART Switch 1 4 RESULT Switch 1 5 2 2 EE SELECT Switch 1 3 2 2 Specifications 1 9 DS1 alarm criteria 1 14 051 input specifications 1 12 DS1 measurements 1 14 051 output specifications 1 13 DS3 alarm criteria 1 11 053 input specifications 1 10 053 measurements 1 11 053 output specifications 1 10 general specifications 1 9 Status Alarm Group LEDs 1 4 SUMMARY Category far end alarm and control FEAC messages 4 2 Switches AUX switch 1 5 CATEGORY switch 1 4 CURSOR switch 1 3 DISPLAY HOLD switch 1 4 error insert 1 5 Index 4 HISTORY RESET switch 1 4 MODE switch 1 3 POWER switch 1 8 RESTART switch 1 4 RESULT switch 1 5 SELECT switch 1 3 Test Results 4 1 DS1 test results 051 Test Results 4 9 DS3 test results 4 1 Top Panel Connectors 1 7 TRAFFIC Results 4 13 U User Interface Controls 2 1 CATEGORY switch 2 2 CURSOR switch 2 2 MODE switch 2 1 RESULTS switch 2 2 SELECT switch 2 2 User Interface Description 2 1 DS1 test configuration menu 2 13 DS3 test configuration menu 2 2 introduction 2 1 user interfac
19. ELE ES 2 2 2 2 4 CATEGORY 5 2 2 2 2 5 RESULT Switch see ELE EXER n REM 2 2 2 2 6 AUX Switch eee ea A 2 2 2 3 053 Test Configuration Menu 2 2 2 3 1 FRAME ee eque at etes 2 3 2 3 2 PATI vu vrbe NUES PUDQCM 2 4 2 3 3 DROP bas oh eee ees Epa DER bd 2 6 2 3 4 INS tle E lets ot Sees 2 6 2 35 E ERR 2 6 2 3 6 re RETRO S Net ves 2 2 3 7 um vh Ehe we ue APUL EP 2 2 3 8 e b Ra SENS 2 7 2 3 9 ex e extus 2 7 2 3 10 BURST A ENEE EE 2 8 2 3 11 ALARM Gre A aes Spada 2 8 2 3 12 ZENNER EE de 2 8 2 3 13 X BIT e age utere eR es 2 9 2 3 14 GE HR E E t n 2 9 2 3 15 ege v we a oad ee 2 9 2 3 16 2 RS dh SHINE 2 9 2 3 17 PARR sade bai Be aa ee be eed ea 2 10 2 3 18 NL 2 10 2 3 19 EPUP hind es en E Na BP 2 10 2 3 20 EPDN sates OSE EE E EE 2 11 2 3 21 ECODE a oh eee aie V eue ex 2 11 2 3 22 FCALIEM rs cae 2 11 2 3 23 ECAES chasis erat anda EE EE RE EE 2 12 2 3 24 CIT ER PEE 2 12 2 3 25 FELPS stint Mee eA ad eo ag Hae weed Hela ge oe 2 13 2 4 051 Te
20. F signal level 43 0 to 40 0 dBm for the selected channel If the dropped channel is set to NONE the VF LVL displays N A SIMPLEX CURR Simplex Current The simplex current 10 to 200 mA between the transmit output tip and ring and the receive input tip and ring If the current is less than 10 mA displays 10 mA If the current exceeds 200 mA displays 2200 mA SIG BIT AB Signaling A B Bits The A and B bits for all 24 DSO channels SIG BIT CD Signaling C D Bits The C and D bits for all 24 DSO channels ESF Framing only 10 29 99 4 13 SECTION 4 TEST RESULTS DS1 Test Results 4 3 5 4 14 TIMING SLIPS Timing Slips number of bit slips and framing slips counted when the DS1 signal source has slipped from the REF jack input A framing slip equals 193 bit slips The framing slip total 999 to 999 appears in the third line of the display The bit slip total 192 to 192 appears in the bottom line of the display TIME Category The DS1 TIME category test results are defined as follows TIME Current Time of Day The current time of day in hours minutes and seconds DATE Current Date The current day and month ELAPSED TIME Elapsed Time The elapsed time in hours minutes and seconds since the last test restart If no DS1 signal is present after test restart the test will not begin TEST LENGTH Timed Test Length The currently set test length for a timed test in h
21. OP selection 2 6 ER RT selection 2 7 ERRTH selection 2 9 FCALM selection 2 11 FCALS selection 2 12 FCLP selection 2 12 FCLPS selection 2 13 FRAME selection 2 3 FRMTH selection 2 9 INS selection 2 6 LCODE selection 2 11 LPDN selection 2 11 LPUP selection 2 10 PAR selection 2 10 PATT selection 2 4 RXLEV selection 2 6 TX selection 2 7 TXLVL selection 2 7 TXTIM selection 2 7 USERI selection 2 10 X BIT selection 2 9 053 Test Results 4 1 BPV FRM category 4 5 FEAC message and loop code 4 2 LOGIC category 4 3 SIGNAL category 4 7 SUMMARY category 4 1 DS3 4 1 4 10 TIME category 4 8 DS3 TIME Category Test Results 4 8 053 TX Jack 1 7 10 29 99 opu Error Insert Switch 1 5 EXT Power LED 1 8 External Power Connector 1 8 EL Front Panel Controls Indicators and Connectors 1 3 Front Panel Display 1 3 G General Specifications 1 9 Getting Started 1 1 instrument checkout 1 15 instrument description 1 2 manual overview 1 1 preventive maintenance 1 20 specifications 1 9 H HISTORY RESET Switch 1 4 Instrument Checkout 1 15 DS1 BERT instrument check out 1 19 051 drop from DS3 instrument checkout 1 17 10 29 99 Index DS3 BERT instrument check out 1 16 instrument checkout basic set up 1 15 Instrument Checkout Basic Setup 1 15 Instrument Description 1 2 front panel controls indicators and connectors 1 3 lid panel controls indicators and connectors 1 8 top panel connectors 1
22. Place the printer ON LINE NOTE When the printer is placed ON LINE the T BERD 307 immediately sends any printouts that are stored in memory 2 21 SECTION 2 User Interface Description Printout generation 2 5 2 Generating a Printout The PRINT auxiliary function controls the type of printout and provides the ability to clear the print buffer of stored printouts The choices for the PRINT auxiliary function 053 051 DS3 DS1 results printout Selecting the PRINT auxiliary function opens a lower window see Figure 2 2 that displays the printout type interface parameters buffer status and the printout activation button PRINT DS3 PEVNT OFF BAUD 9600 PRITY ONE BUF NOT EMPT clearbuf rsitT Figure 2 2 Printout Pop up Window Results printouts appear as shown in Figure 2 3 2 22 10 29 99 SECTION 2 User Interface Description Printout generation RESULTS PRINT Manual Printout April 2 18 30 00 DS3 RESULTS DS3 STATUS Signal Present ON Frame Sync ON Pattern Sync ON DS3 ALARMS HIST CURR Signal Loss Frame Loss OFF OFF Pattern Loss OFF OFF AIS RETS OFF OFF FEAC OFF OFF LOGIC Bit Errors 0 Bit Err Rate 0 TIME Time 18 30 00 Date April 2 Elapsed Time 00 00 00 Test Length N A Time Left N A Figure 2 3 Sample Results Printout 10
23. R INTERFACE CONTROLS The following paragraphs describe the operation of the front panel controls associated with the user interface Figure 2 1 shows the Front Panel Display and associated controls CURSOR SELECT CATEGORY RESULT SUMMARY O LOGIC LI BPV FRM DI 2 swo TIME O MODE RESULTS O AUX DS3 nO Y o L1 Figure 2 1 User Interface Controls 2 21 MODE Switch The MODE switch selects the user interface mode DS3 DS1 or RESULTS which illuminates the associated LED The 053 position 10 29 99 2 1 SECTION 2 User Interface Description 053 Test Configuration Menu 2 2 2 2 2 3 2 2 4 2 2 5 2 2 6 2 3 2 2 activates 053 Test Configuration Menu The DS1 postion activates 051 Test Configuration Menu The RESULTS position activates the Test Results display CURSOR Switch The CURSOR switch up and down arrows are used to scroll through the configuration items in the Test Configuration Menu SELECT Switch The SELECT switch up and down arrows are used to cycle through the available choices for the highlighted configuration item CATEGORY Switch The CATEGORY switch up and down arrows are used to select the test results category The test results categories are discussed in Section 4 Test Results RESULT Switch The RESULT switch up and down arrows are used to cycle through the available test results for the selected test results category The test results are
24. RAMMABLE Selects the programmable loop code FCALM FCALM FEAC Alarm Selection selects the alarm message to be applied to the signal The choices are as follows DS3 EF NSA Selects 053 Equipment Failure Non Service Affecting message DS3 EF SA Selects the DS3 Equipment Failure Service Affecting Type 1 equipment failure message DS3 L H Selects the DS3 Loss of Signal High Bit Error Ratio message DS3 OOF Selects the DS3 Out of Frame Loss of DS3 Frame Synchronization message DS3 AIS RX Selects the DS3 Alarm Indication Signal Received message SECTION 2 User Interface Description 053 Test Configuration Menu 053 IDLE RX Selects the 053 Idle signal Received message COMM EF NSA Selects the Communication Equipment Failure Non Service Affecting message 051 EF NSA Selects 051 Equipment Failure Non Service Affecting Type 2 equipment failure message DS1 EF SA Selects the DS1 Equipment Failure Service Affecting Type 1 equipment failure message SING DS1 L H Selects the Single DS1 Loss of Signal High Bit Error Ratio message MULT DS1 L H Selects the Multiple DS1 Loss of Signal High Bit Error Ratio message 2 3 23 FCALS 2 3 24 2 12 FCALS FEAC Alarm Send toggles the transmission of the selected far end alarm on or off The choices are as follows SENDING Transmits the selected far end alarm NOT SENDING Does not transmit the selected far end
25. RESET switch is pressed 8 RESTART Press the RESTART switch to clear all current test Switch results and begin a test HISTORY Press the HISTORY RESET switch to clear the 9 RESET Switch History alarm LEDs CATEGORY The CATEGORY switch up and down arrows are 0 Switch used to scroll through and select a test result category to display in the Results Window 1 4 10 29 99 SECTION 1 GETTING STARTED Instrument Description Table 1 1 Front Panel Controls and Indicators Continued Item Description The RESULT switch up and down arrows are used to scroll through the test results available in the selected category RESULT Switch The AUX switch is used to activate the auxiliary functions menu which allows the setting of test parameters that do not appear in the main configuration menus The ERROR INSERT switches are used to select the ERROR type and rate of errors to be inserted on the selected INSERT channel The error types are BPV Frame and Logic Switchesand If a switch is pressed for more than two seconds the LEDs LED stays illuminated indicating an error rate is being inserted AUX Switch 10 29 99 1 5 SECTION 1 GETTING STARTED Instrument Description 053 sicNaLPREsENT 0051 BATTERY FRAMESYNC RESTART Low Ll SIGNALLOSS DISPLAY FRAME LOSS HISTORY HOLD PATTERNLOSS RESET AIS S LI RDI HISTORY CURSOR SELECT CATEGORY
26. alarm FCLP FCLP FEAC Loop Code selects the FEAC loop code to be applied to the signal The choices are as follows ALL DS1s Loopback all the low speed DS1 channels at the 053 multiplexer 051 1 to 051 28 Loopback the selected low speed 051 channel at the DS3 multiplexer 053 LINE Loopback DS3 line at the 053 multiplexer DS3 NIU Loopback the DS3 network interface unit NIU 10 29 99 2 3 25 2 4 2 4 1 10 29 99 SECTION 2 User Interface Description DS1 Test Configuration Menu FCLPS FCLPS FEAC Loop Code Send selects the loop code transmitted The choices are as follows LOOPING UP Transmits the selected loop up code NOT SENDING Does not transmit any loop code LOOPING DOWN Transmits the selected loop down code DS1 TEST CONFIGURATION MENU When the MODE switch is set to DS1 DS1 Test Configuration Menu selections are available Only the first five configuration items are displayed but an arrow to the left of the fifth item indicates there are more items below Pressing the CURSOR switch down arrow when you reach the fifth configuration item pushes the first five items up one position and displays the next item This action also creates a second arrow to the left of the top configuration item indicating that additional items are above the current group of five In the following paragraphs unless otherwise stated in the description the CURSOR switch up or down arrow
27. ame loss The choices are as follows 3 OUT OF 15 Frame synchronization is declared lost when three frame errors are counted in 15 received frame bits 6 OUT OF 15 Frame synchronization is declared lost when six frame errors are counted in 15 received frame bits ERRTH ERRTH Error Threshold selects errored second threshold value for bit errors frame errors and BPVs The choices are as follows 1E 2 to 1E 8 Selects the errored second threshold value 10 29 99 2 9 SECTION 2 User Interface Description 053 Test Configuration Menu 2 3 17 2 3 18 2 3 19 2 10 PAR R PAR R Parity Error Rate selects the parity error rate calculation method The choices are as follows BIT ERRORS The bit parity error rate is calculated as the ratio of the total number of parity errors to the total number of bits over which the parity was calculated number of received M frames multiplied by 4704 The bit parity error rate gives the best indication of the actual bit error rate BLOCK ERRORS The block error method is calculated as the ratio of the total number of parity errors to the total number of M frames received USER1 User Programmable Pattern sets the 3 to 24 bit programmable pattern the default pattern is 100 Use the CATEGORY switch to move the cursor to the bit to be set Use the RESULT switch to toggle the bit between and 0 Use the SELECT switch to save the pattern LPUP LPUP P
28. and At least 177 error free bits of the selected repetitive pattern must be received loop up or loop down Datalink monitored every 125 ms for loop codes loop up and loop down 1 3 6 4 Pattern Sychronization Detection Criteria Fixed Patterns QRSS 30 consecutive error free bits 30 n consecutive error free bits pattern length of 2 n 1 SECTION 1 GETTING STARTED Specifications 1 3 7 0581 Output Specifications DS1 Analysis Option 1 3 7 1 TX Jack Connector Type LBO Level LBO Tolerance Timing Line Codes Error Insert Type Error Insert Rate Pulse Shape Bantam jack Line build out of 0 7 5 15 0 and 22 5 dB of cable loss at 772 Hz 1 dB at 772 kHz for 0 7 5 or 15 0 dB 2 dB at 772 kHz for 22 5 dB 5 ppm internal external or recovered AMI or B8ZS Logic BPV or Frame Single or 1E 2 through 1E 7 With output terminated in 100 ohms resistive load and 0 dB line build out selected the T BERD 307 meets ITU T Recommendation G 703 AT amp T Publications CB113 CB119 CB132 CB143 and PUB62508 and AT amp T PUB62411 pulse shape specifications 1 3 7 2 Transmitted Loop Codes In Band CSU Facility 1 Facility 2 Programmable Out of Band Line Payload Network 10 29 99 Loop up 10000 Loop down 100 Loop up 1100 Loop down 1110 Loop up 11000 Loop down 11100 3 8 bit programmable pattern Loop up 1111 1111 0111 0000 Loop down
29. and signal conditioning applied to the received signal The choices are as follows TERM Provides nominal input impedance of 100 ohms The TERM setting provides compensation for cable losses of up to 35 dB for T1 lines This is useful for terminating a circuit BRIDGE Provides an input impedance greater than 1000 ohms for bridging lines that are already terminated The BRIDGE setting provides compensation for cable losses of up to 35 dB DSX MON Provides a nominal 100 ohms of input impedance and compensates for resistive loss The DSX MON setting is useful for monitoring lines at resistor isolated DSX monitor points TX TX Transmit Status toggles the transmitter ON or OFF The choices are as follows ON Transmitter activated OFF Transmitter disabled TXLVL TXLVL Transmit Output Level enables selecting the transmitted signal s Line Build Out LBO level in dB The selections are 0 7 5 15 0 and 22 5 dB The LBO value plus the received signal level should range between 15 and 22 5 dB SECTION 2 User Interface Description DS1 Test Configuration Menu 2 4 9 2 4 10 2 4 11 2 18 TXTIM TXTIM Transmit Timing Source enables selecting the transmit signal s timing source The selections are as follows INTERNAL Selects the internal crystal controlled oscillator RECOVERED Selects the clock signal recovered from the received data BITS CLOCK Selects an external clock s
30. ccuracy Resolution 1 3 5 053 Alarm Criteria Signal Loss Pattern Loss FAST SLOW Frame Loss 3 OUT OF 15 6 OUT OF 15 AIS Blue STUCK C BIT 1010 RDI Yellow Far End Alarm 10 29 99 44 736 000 Hz 1 500 000 Hz 5 ppm 10 Hz 3 0 Vpp to30 mVpp 50 mVp over measurement range 10 mVp 0 02 ms without valid input pulses after initial signal detected 1024 errors per 32 767 data bits 250 000 errors per 1 000 000 bits 3 out of 15 F bits in error or 2 out of 3 M bit sequences 010 in error 6 out of 15 F bits in error Valid framing valid parity all stuffing indicator C bits equal zero and the 1010 criteria 30 ms of 1010 pattern with framing Both X bits equal zero Receipt of valid far end alarm message not loop codes through the third C bit in subframe 1 FEAC bit SECTION 1 GETTING STARTED Specifications 1 3 6 DS1 Input Specifications DS1 Analysis Option 1 3 6 1 RX Jack Connector Type Frequency Impedance BRIDGE TERM DSX MON Range BRIDGE TERM DSX MON 1 3 6 2 REF Jack Connector Type Frequency Impedance Range Bantam jack 1 544 000 Hz 4000 Hz 1000 ohms minimum 100 ohms 5 100 ohms 5 6 to 35 0 dBdsx 6 to 35 0 dBdsx 6 to 24 0 dBdsx of resistive loss Bantam jack 1 544 000 Hz 1000 Hz 1000 ohms nominal 6 to 24 0 dBdsx of resistive loss 1 3 6 3 Loop Codes Detect Criteria In Band Out of B
31. d Typically provides two hours of continuous operation on a full charge 68 F holds 85 of charge after 5 months Requires recharging every six months 1 9 SECTION 1 GETTING STARTED Specifications 1 3 2 083 Input Specifications 1 3 21 RX Jack Connector Type Frequency Impedance Level HIGH DSX Line Code WECO 560A jack 44 736 000 Hz 300 ppm 75 ohms 5 unbalanced to ground Accepts a typical signal level of 0 9 Vp that represents 0 feet of cable attenuation from a HIGH source With resistive attenuation accepts levels from 6 dB to 26 dB from the typical signal level With cable attenuation accepts levels from 6 dB 450 feet to 6 dB 450 feet from the typical signal level Accepts a typical signal level of 0 5 Vp that represents 450 feet of cable attenuation from a HIGH source With resistive attenuation accepts levels from 6 dB to 26 dB from the typical signal level With cable attenuation accepts levels from 6 dB 450 feet to 6 dB 450 feet from the typical signal level B3ZS 1 3 3 053 Output Specifications 1 3 3 1 TX Jack Connector Type Frequency Impedance Level HIGH DSX Line Code WECO 560A jack 44 736 000 Hz 5 ppm 75 ohms 5 unbalanced to ground Nominal 0 91 Vp Nominal 0 6 Vp B3ZS 10 29 99 SECTION 1 GETTING STARTED Specifications 1 3 4 053 Measurements Frequency Range Accuracy Resolution Level Range A
32. des a description of the auxiliary functions of the analyzer which control parameters of functions that are not frequently used and do not have dedicated switches Section 4 Test Results This section provides a description of the available test results the category of the results and the test type with which it is associated Section 5 Application Cards This section contains the application quick cards available for the analyzer at the time the manual was printed 1 1 SECTION 1 GETTING STARTED Instrument Description 1 2 1 2 INSTRUMENT DESCRIPTION The T BERD 307 is a handheld test instrument specifically designed to fully test DS3 circuits The DS1 Analysis Option Option 307 1 adds full DS1 testing capability A T BERD 307 with the DS1 Analysis Option installed can perform the following functions Identify timing problems by accessing the 051 timing reference from either DS3 or DS1 access points Test far end equipment by transmitting appropriate loop codes to loop back a transmitted signal then verifying the transmitted data is received without errors Troubleshoot individual DS1 Channels within a DS3 signal by inserting test patterns or loop codes on one or all DS1 channels DS1 channels can be dropped from received DS3 signal to test and monitor Measure VF level and frequency by monitoring individual VF channels Troubleshoot DSO problems by listening to individual channels and monitori
33. discussed in Section 4 Test Results AUX Switch The AUX switch activates the Auxiliary Functions Display which provides access to parameters not frequently used and not having dedicated switches The auxiliary functions are discussed in Section 3 Auxiliary Functions DS3 TEST CONFIGURATION MENU When the MODE switch is set to DS3 the DS3 Test Configuration Menu selections are available Only the first five configuration items are displayed but an arrow to the left of the fifth item indicates there are more items below Pressing the CURSOR switch down arrow when you reach the fifth configuration item pushes the first five items up one position and displays the next item This 10 29 99 2 3 1 10 29 99 SECTION 2 User Interface Description DS3 Test Configuration Menu action also creates a second arrow to the left of the top configuration item indicating that additional items are above the current group of five In the following paragraphs the CURSOR switch up or down arrow is used to highlight the active selection and the SELECT switch is used to cycle through the available choices FRAME FRAME enables selection of the data format for transmission and analysis default value is M13 The choices are UNFRAMED Configures the T BERD 307 to test unframed 053 circuits M13 Configures the T BERD 307 to test non channelized DS3 M13 formatted signals MUXED M13 Configures the T BERD 307 to generate multipl
34. dorandom pattern with a maximum of 22 sequential 0 and 23 sequential 175 This pattern conforms to ITU T Recommendation O 151 2 20 1 1 048 575 bit pseudorandom pattern with a maximum of 19 sequential 0 and 20 sequential 175 This pattern conforms with Bell Compatibility Bulletin No 114 2 15 1 A 32 767 bit pseudorandom pattern with a maximum of 14 sequential 0 and 15 sequential 175 This pattern conforms to ITU T Recommendation O 151 1111 An all marks 1 pattern that is only available in M13 and C bit modes 10 29 99 10 29 99 SECTION 2 User Interface Description DS3 Test Configuration Menu 1100 IDLE A repeating marks 1 and spaces 0 pattern that equates to sending the DS3 Idle Signal 1010 AIS An alternating marks 1 and spaces 0 pattern that equates to sending the DS3 AIS Signal USER1 3 to 24 bit user programmable test pattern This allows T BERD 310 to transmit specific patterns to test circuit sensitivity The pattern is entered in binary through the USERI DS3 setup function The choices for MUXED M13 and MUXED C BIT are as follows 7104 QRSS A modified 22 1 pseudorandom pattern with a maximum of 14 sequential 075 and 20 sequential 175 The T1D4 QRSS pattern simulates live data for T1 applications 1 4 3 24 A fixed test pattern of F0100 0100 0000 0000 0000 0100 The pattern is aligned with the D4 F bits 1 4 1 7 A fixed test pattern of F01000000
35. e controls 2 1 10 29 99
36. ed The analyzer should be visually inspected and cleaned as often as operating conditions require The accumulation of dirt on the instrument can cause overheating and component failure The following paragraphs describe inspecting and cleaning the exterior of the analyzer Exterior Inspection Inspect the external portions of the instrument for damage wear and loose or missing parts Instruments that appear to have been dropped or otherwise abused should be checked thoroughly to verify correct operation and performance Deficiencies found that could cause personal injury or lead to further damage to the instrument should be repaired immediately Exterior Cleaning Loose dust on the outside of the instrument can be removed with a soft cloth Dirt that remains can be removed with a soft cloth dampened in a mild detergent and water solution e g Miller Stephenson Cleaner MS 260 Do not use abrasive cleaners Use only enough water to dampen the cloth e K CAUTION Do not get moisture inside the instrument 10 29 99 SECTION 2 User Interface Description Introduction SECTION 2 USER INTERFACE DESCRIPTION 2 1 INTRODUCTION This section provides a description of the T BERD 307 User Interface Included are descriptions of the operation of the front panel controls MODE CURSOR SELECT CATEGORY and RESULT switches used to select configure and edit the menu items in the Front Panel Display 2 2 USE
37. ewer bits Alarm is suppressed Received data contains less than n ones in 8 n 1 bits where n 1 to 23 16 or more consecutive zeros 8 or more consecutive zeros Bit 2 is a 0 for 255 consecutive channels 256 bits 16 bits of a repetitive 1111 1111 0000 0000 pattern received in the 4 kb s datalink Bit 2 is a for 255 consecutive channels Unframed 1 signal has 2048 consecutive ones Battery has approximately 15 minutes of power remaining INSTRUMENT CHECKOUT Perform the following procedure to verify the operation of the T BERD 307 Perform the option checkout procedure for the 051 Analysis Option if it is installed Instrument Checkout Basic Setup 1 Openthe T BERD 307 Cover by releasing the latch on the right side and opening the cover to its full extension 2 Connect AC power to the T BERD 307 by inserting the AC Power Adaptor into the External Power connector and plugging the other end into an AC power source SECTION 1 GETTING STARTED Instrument Checkout 1 4 2 3 Power on the unit using the POWER switch During power up the T BERD 307 initiates an automatic self test that performs the following functions Momentarily illuminates all LEDs Checks memory and restores front panel settings to the previous settings selected before the last power down If any changes are found the factory default settings are reloaded and the message RELOADING NOVRAM is displayed The T BERD 307 remains
38. exed channelized DS3 M13 signal C BIT Configures the T BERD 307 to test non channelized DS3 C bit parity formatted signals MUXED C BIT Configures the T BERD 307 to generate a multiplexed channelized DS3 C bit parity signal DS1 INSERT Configures the T BERD 307 to insert a signal on DS1 channel 2 3 SECTION 2 User Interface Description 053 Test Configuration Menu 2 3 2 2 4 AUTO Configures the receiver to automatically scan and synchronize to the input signal framing and pattern After achieving synchronization the transmitter regenerates the framing and test pattern without errors When the framing format is recognized the framing format name appears in lowercase characters in the display If live data is declared the transmit timing defaults to Recovered If the received signal is recognized as a test pattern the following actions occur The test pattern name appears in lowercase characters The transmitter is configured to generate the recognized framing format and test pattern Logic and BPV errors can be inserted Full 053 logic BPV parity frame and signal error analysis is performed on the received signal Theappropriate LEDs illuminate PATT PATTern enables selection of the required test pattern default is 2423 1 The choices available are determined by the selected framing The choices for M13 and C bit framing are as follows 2 23 1 An 8 388 607 bit pseu
39. framed or unframed 96 octet pattern for stressing MI2 circuits in DS3 equipment When the pattern is frame aligned it provides a maximum of 15 zeros and meets the ones density criteria T1 3 A fixed 54 octet pattern for stressing circuits and equipment When the pattern is frame aligned it exceeds the maximum zeros criteria and ones density criteria T1 4 A fixed 120 octet pattern for stressing circuits and equipment When the pattern is frame aligned it contains a maximum of eight zeros and meets the ones density criteria T1 5 A fixed 53 octet pattern for stressing 1 circuits and equipment When the pattern is frame aligned it does not exceed the maximum zeros criteria but it does exceed the 8 n 1 one density criteria 2 15 SECTION 2 User Interface Description DS1 Test Configuration Menu 2 4 4 2 16 55 OCTET A fixed unframed 55 octet pattern for stressing repeater timing recovery and ALBO circuitry When the pattern is frame aligned it violates the maximum zeros and ones density criteria This pattern should only be transmitted over the repeatered span and not the network MIN MAX fixed 72 octet minimum maximum density pattern for stressing repeater pre amplification equalization and ALBO circuitry When the pattern is frame aligned it meets the maximum zeros and ones density criteria ALL ONES A fixed test pattern of AMI pulses marks that is used to stress span repeater cur
40. fully functional even though the switch settings may not be saved during the power cycle While the instrument may be used contact TTC Instrument Service Center at 800 638 2049 If it becomes necessary to restore the test set configuration to the factory default settings press and hold the RESTART switch then turn the power on Hold the RESTART switch down until the display illuminates the LEDs illuminate and the message RELOADING NOVRAM is displayed for a few seconds The 307 random access memory RAM and read only memory ROM are also checked during self test If an error is found the message TESTING RAM FAIL or TESTING ROM FAIL appears In such instances contact the TTC Instrument Service Center at 800 638 2049 There are no user seviceable parts within the T BERD 307 DS3 BERT Instrument Checkout 4 Configure the T BERD 307 for a DS3 loopback test as shown in Table 1 5 Table 1 5 DS3 BERT Loopback Configuration Switch Action MODE Select DS3 CURSOR Select Frame 10 29 99 1 4 3 10 29 99 SECTION 1 GETTING STARTED Instrument Checkout Table 1 5 DS3 BERT Loopback Configuration Switch Action SELECT Select M13 CURSOR Select PATT SELECT Select 2 23 1 CURSOR Select RXLEV SELECT Select DSX CURSOR SELECT Select TX Select ON CURSOR Select TXLEV SELECT Select DSX CURSOR Se
41. function PAR ERR SEC Parity P bit Errored Seconds The number of seconds with one or more parity errors C BIT ERRORS C bit Parity Errors The number of parity errors detected since initial DS3 C bit frame synchronization C BIT ERR RT C bit Parity Error Rate The ratio of C bit parity errors to 1 the number of bits over which C bit parity was calculated Bit mode or 2 the number of DS3 C bit M frames received Block mode The error rate is computed over the previous block of 10 bits The result is derived as a bit or block error rate based on the setting of the ERR RECEIVE PAR ERR RT auxiliary function 10 29 99 4 5 SECTION 4 TEST RESULTS 053 Test Results 4 6 FEBE Far End Block Errors The number of far end block errors FEBEs detected since initial DS3 C bit frame synchronization FEBE RT Far End Block Error Rate The ratio of FEBES to 1 the number of bits over which C bit parity was calculated Bit mode or 2 the number of DS3 C bit M frames received Block mode The error rate 15 computed over the previous block of 10 bits The result is derived as a bit or block error rate based on the setting of the ERR RECEIVE PAR ERR RT auxiliary function FRM ERRORS Frame Errors The number of frame errors detected since the start of the test FRM ERR RT Frame Error Rate The ratio of frame errors to framing bits over the previous of 108 bits FRM ERR SEC Frame Errored Seco
42. ht line LCD display shows three screens SETUP Screen used to configure basic functions Test Configuration Window top five lines and display test results Results Window bottom two lines Front Panel 1 4 Display AUX Screen used to set up infrequent configuration features and display Software level and date RESULTS Screen used to display three test results simultaneously DS3 and DS1 results on the same screen 10 29 99 1 3 SECTION 1 GETTING STARTED Instrument Description Table 1 1 Front Panel Controls and Indicators Continued Item Description DISPLAY Press the DISPLAY HOLD switch to freeze the 5 HOLD display with the current values The T BERD 307 Switch continues to accumulate test results in the background The Battery Low LED illuminates when only 15 6 Battery Low minutes of battery power remain AC power should LED be connected to recharge the battery and continue testing DS3 LEDs are on the left DS1 LEDs are on the right Status LEDs illuminate green to indicate Signal Present Frame Sync and Pattern Sync Alarm LEDs illuminate red to indicate a signal problem The Alarm LEDs are two columns of 7 Status Alarm LEDs current alarms are on the inner column by Group the labels while history alarms are on the outer column Current Alarm LEDs illuminate when a condition is present History Alarm LEDs illuminate after the condition clears and remain on until HISTORY
43. ignal error analysis is performed on the received signal Theappropriate LEDs illuminate UNFRAMED Configures the T BERD 307 to test unframed signals 10 29 99 2 4 3 10 29 99 SECTION 2 User Interface Description DS1 Test Configuration Menu PATT PATT Pattern enables selection of the required test pattern The choices for framing are as follows 2 23 1 An 8 388 607 bit pseudorandom pattern with a maximum of 22 sequential 0 and 23 sequential 175 This pattern conforms to ITU T Recommendation O 151 2 20 1 1 048 575 bit pseudorandom pattern with a maximum of 19 sequential 0 and 20 sequential 175 This pattern conforms with Bell Compatibility Bulletin No 114 2 15 1 A 32 767 bit pseudorandom pattern with a maximum of 14 sequential 0 and 15 sequential 175 This pattern conforms to ITU T Recommendation O 151 USER1 3 to 24 bit user programmable test pattern This allows T BERD 307 to transmit specific patterns to test circuit sensitivity The pattern is entered in binary through the USERI 051 setup function ALL ZEROS An all zeros pattern that allows the T BERD 307 to test T1 circuits for B8ZS clear channel capability The pattern can be transmitted framed or unframed T1 DALY A fixed framed or unframed 55 octet pattern except the seventh octet 15 80H instead of that meets the ones density and excess zeros criteria to test timing recovery circuits T1 2 A fixed
44. ing which one more frame synchronization losses occurred or during which frame synchronization could not be achieved since initial DS1 frame synchronization CRC ERRORS Cyclic Redundancy Check Errors The number of CRC errors detected CRC errors are counted only when ESF framing is present CRC ERR RT CRC Error Rate The ratio of CRC errors to the number of ESF superframes analyzed CRC ERR SEC CRC Errored Seconds The number of seconds with one or more CRC errors CRC SES CRC Severely Errored Seconds The number of seconds with 320 or more CRC errors 10 29 99 SECTION 4 TEST RESULTS DS1 Test Results 4 3 4 SIGNAL Category The DS1 SIGNAL category test results are defined as follows SIG L SEC Signal Loss Seconds The number of seconds during which the received DS1 signal was lost for all or part of a second TX FREQ Receive Frequency The frequency of the Transmit clock in Hz RX FREQ Receive Frequency The frequency of the clock recovered from the received data in Hz RX LVL dBdsx Receive Signal Level in dBdsx The level of the received DS1 signal in dBdsx RX LVL Vpp Received Signal Level in Vp p The level of the received signal in Volts peak to peak VF FREQUENCY Voice Signal Frequency The VF frequency 60 to 3904 Hz for the selected channel If the dropped channel is set to NONE the VF FREQ displays N A VF LVL dBm Voice Frequency Level The V
45. ion of the DS1 channel on which to insert the test pattern The choices are as follows N A This indicates that DS1 insertion is not enabled and is displayed for all framing modes except 051 INSERT MUXED M13 and MUXED NONE Inserts a framed All Ones pattern on all 28 DSI channels 1 to 28 Inserts the test pattern on the selected DS1 channel A framed Ones pattern is inserted on the other 27 DS1 channels ALL Inserts the selected test pattern on all 28 DS1 channels RXLEV RXLEV Receive Level sets the RX jack receiver for the desired 053 signal level The choices are as follows HIGH Accepts a typical signal level of 0 9 Vp 0 feet of cable attenuation from a HIGH source For cable attenuation the input signal level can range from 6 dB 450 feet to 6 dB 450 feet from the typical input level 0 9 Vp For resistive attenuation the signal level can range from 6 dB to 26 dB from the typical input level 0 9 Vp DSX Accepts a typical signal level of 0 5 Vp 450 feet of cable attenuation form a HIGH source For cable attenuation the 10 29 99 2 3 6 2 3 7 2 3 8 2 3 9 SECTION 2 User Interface Description DS3 Test Configuration Menu input signal level can range from 6 dB 450 feet to 6 dB 450 feet from the typical level 0 5 Vp For resistive attenuation the input signal level can range from 6 dB to 26 dB from the typical level 0 5 Vp TX TX Transmit the t
46. is Option 1 12 1 3 6 1 RX Jacks ses eee tetas sie e ego etie 1 12 1 3 6 2 REE Jack eoe ees He eG Re RA Ves 1 12 1 3 6 3 Loop Codes Detect Criteria 1 12 1 3 6 4 Pattern Sychronization Detection Criteria 1 12 1 3 7 051 Output Specifications 051 Analysis Option 1 13 1 3 7 1 TX Jack SPRL P ERREUR DIS A 1 13 1 3 7 2 Transmitted Loop Codes 1 13 1 3 8 DS1 Measurements 051 Analysis Option 1 14 1 3 9 051 Alarm Criteria DS1 Analysis Option 1 14 1 4 Instrument Checkout 1 15 1 4 1 Instrument Checkout Basic Setup 1 15 1 4 2 053 BERT Instrument 1 16 1 4 3 DS1 Drop From 053 Instrument Checkout 1 17 1 4 4 051 BERT Instrument Checkout DS1 Analysis Option 1 19 1 5 Preventive 1 20 1 5 1 Exterior Inspection 1 20 1 5 2 Exterior Cleaning 1 20 2 USER INTERFACE DESCRIPTION 2 1 2 1 Introduction 2 1 10 29 99 iii SECTION DESCRIPTION PAGE 2 2 User Interface Controls 2 1 2 2 1 MODE 5witcl cnn ahve eee eR as RI EE 2 1 2 2 2 CURSOR 2 2 2 2 3 SELECT Switch ccs ee vies Pee c PEE D
47. lect SELECT Select INTERNAL MODE Select RESULTS 5 Connect the DS3 TX jack to the DS3 RX jack using a 440A to 440A cable 6 Verify the Signal Present Frame Sync and Pattern Sync LEDs illuminate 7 Press RESTART switch Select the 053 SUMMARY category and verify the display indicates ALL RESULTS OK DS1 Drop From DS3 Instrument Checkout 8 Configure the T BERD 307 for a Muxed DS3 loopback test as shown in Table 1 6 Table 1 6 Muxed DS3 Loopback Configuration Switch Action MODE Select DS3 CURSOR Select Frame SELECT Select MUXED M13 CURSOR Select PATT SELECT Select TID4 QRSS CURSOR Select RXLEV SELECT Select DSX SECTION 1 GETTING STARTED Instrument Checkout Table 1 6 Muxed DS3 Loopback Configuration Switch Action CURSOR Select TX SELECT Select ON CURSOR Select TXLEV SELECT Select DSX CURSOR Select SELECT Select INTERNAL 9 Configure the T BERD 307 1 for a DS1 drop from DS3 test as shown in Table 1 5 Table 1 7 DS1 Drop From DS3 Configuration Switch Action MODE Select DS1 CURSOR Select SRC SELECT Select 053 DROP CURSOR Select FRAME SELECT Select AUTO 10 Connect the DS3 TX jack to the DS3 RX jack using a 440A to 440A cable 1 16 10 29 99 SECTION 1 GETTING STARTED Instrument Checkout 11 Verify the Signal Present Frame S
48. lls over the count continues SUMMARY Category Test Results The following DS3 test results appear in the SUMMARY category when they begin to detect error conditions ERRORS LOGIC category VIOLATIONS BPV FRM category FRM ERRORS BPV FRM category RS FREQ SIGNAL category ERRORS BPV FRM category C BIT ERRORS BPV FRM category FEBE BPV FRM category FEAC Messages 4 1 SECTION 4 TEST RESULTS 053 Test Results 4 2 2 When all SUMMARY results are error free the message ALL RESULTS OK is displayed When an error is detected the appropriate test result appears in the SUMMARY category window When more than one error is detected press the RESULTS switch to scroll through the results FEAC Message and Loop Code Summary Test Results The Far End Alarm and Control FEAC messages Table 4 1 and loop codes Table 4 2 appear in the SUMMARY category under the FEAC Code result The FEAC messages are accumulated as they are detected Only the last FEAC loop code is stored in the FEAC Code result The results remain in the SUMMARY category until a test restart is initiated The messages comply with the ANSI 1 107 1990 standard and can be transmitted using the FCALM FCALS FCLP and FCLPS 053 Configuration Menu items They are also printed as status loop code messages and alarm messages Table 4 1 Far End Alarm and Control Messages Message Description 053 EF NSA
49. nds number of seconds with one or more frame errors FRM LOSS CNT DS3 Frame Loss Count The number of DS3 frame losses since initial frame synchronization FEOOF SEC Far End Out of Frame Seconds The number of seconds during which the received X bits are zero within the one second interval NEOOF SEC Near End Out of Frame Seconds The number of seconds during which an out of frame condition or an AIS is detected DS2 FRM ERR DS2 Frame Errors The number of 052 frame errors since initial frame synchronization The result applies only to the DS2 signal that contains the DS1 channel being dropped The count is reset when the new channel being dropped corresponds to a different DS2 signal Refer to Table 4 3 for DS2 channels and their DS1 channels 10 29 99 SECTION 4 TEST RESULTS 053 Test Results DS2 FRM ERT DS2 Frame Error Rate The ratio of DS2 frame errors to total DS2 framing bits received The result applies only to the DS2 signal that contains the DS1 channel being dropped The count is reset when the new channel being dropped corresponds to a different DS2 signal Refer to Table 4 3 for DS2 channels and their DS1 channels le 4 3 DS2 Channels vs the Dropped DS1 Channels Channels 4 4 2 5 10 29 99 13 16 RX X BIT Received X Bit The status of the received X bits when in a framed mode The result is available after receivi
50. nectors Specifications 053 BERT Loopback Configuration Muxed 053 Loopback Configuration 051 Drop From 053 Configuration 051 BERT Loopback Configuration Far End Alarm and Control Messages Far End Loop Codes 052 Channels vs the Dropped DS1 Channels viii 1 1 10 29 99 SECTION 1 GETTING STARTED Manual Overview SECTION 1 GETTING STARTED MANUAL OVERVIEW This manual provides basic operating information for the T BERD 307 053 Communications Analyzer The manual is divided into the following sections Getting Started Auxiliary Functions Test Results and Options The following paragraphs describe the contents of each of the manual sections Section 1 Getting Started This section includes a description of this Users Manual an instrument description specifications for the analyzer instrument checkout procedure preventive maintenance procedures Section 2 User Interface Description This section provides a description of the T BERD 307 User Interface Included are descriptions of the operation of the front panel controls used to select configure and edit the menu items in the Front Panel Display This section also includes the process for generating printouts using the PRINT auxiliary function Section 3 Auxiliary Functions This section provi
51. ng ABCD signaling bits on all 24 channels Perform stress testing by transmitting and analyzing pre programmed long user patterns including 55 OCTET and T1 DALY Reduce test setup time by recognizing and automatically configuring for the proper framing and pattern 10 29 99 SECTION 1 GETTING STARTED Instrument Description 1 2 1 Front Panel Controls Indicators and Connectors The front panel of the T BERD 307 is shown in Figure 1 1 with each control or control group and indicator marked with numbered callout Table 1 1 provides a brief description of each control indicator and connector referenced to the numbered callouts in Figure 1 1 Table 1 1 Front Panel Controls and Indicators Item Description The MODE switch selects the display mode The choices are RESULTS 053 and 051 RESULTS enables the Test Results display which 1 MODE shows three test results with the ability to Switch independently select the rate DS3 or DSI category and test result for each display 053 activates the DS3 Test Configuration menu DS1 activates the DS1 Test Configuration menu The CURSOR switch up and down arrows are used CURSOR Sim 2 to scroll through configuration items in setup Switch ix menus auxiliary functions and test results displays SELECT The SELECT switch up and down arrows are used 3 Switch to scroll through parameters in the selected configuration item This eig
52. ng DS3 frame synchronization SIGNAL Category The 053 SIGNAL category test results are defined as follows SIG L SEC Signal Loss Seconds The number of seconds during which the received DS3 signal was lost even momentarily since initial signal detection TX FREQ Transmit Frequency The frequency of the Transmit clock in Hz RX FREQ Receive Frequency The frequency of the clock recovered from the received data in Hz RX LVL Vp Receive Signal Level in Volts peak The level of the received DS3 signal in volts peak RX LVL dBdsx Receive Signal Level in dBdsx The level of the received DS3 signal in dBdsx 4 7 SECTION 4 TEST RESULTS 053 Test Results 4 2 6 TIME Category The 053 TIME category test results are defined as follows TIME Current Time of Day The current time of day in hours minutes and seconds DATE Current Date The current day and month 4 6 10 29 99 4 3 SECTION 4 TEST RESULTS DS1 Test Results ELAPSED TIME Elapsed Time The elapsed time in hours minutes and seconds since the last test restart If no DS3 signal is present after test restart the test will not begin TEST LENGTH Timed Test Length The currently set test length for a timed test in hours and minutes This result is N A unless the T MOD auxiliary function is set to TIMED TIME LEFT Timed Test Time Remaining The time remaining in the current test based on the test length and
53. ource received through the top panel DS1 REF jack SLIPR SLIPR Timing Slips Reference enables selecting the source for the timing slips reference signal The choices are as follows DS1 REFERENCE The reference clock is taken from the signal on the DS1 REF jack DS1 RECEIVE The reference clock is taken from the signal on the DS1 RX jack 053 DROP The reference clock is taken from DS1 signal dropped from the DS3 signal NOTE The timing slips measurement is performed by comparing the DS1 source from SRC selection and the reference signal source from the SLIPR selection ER RT ER RT Error Rate selects the error rate to be applied to the signal The choices are as follows 1E 2 to 1E 7 Selects the error rate for insertion into the signal 10 29 99 SECTION 2 User Interface Description DS1 Test Configuration Menu 24 12 BURST 2 4 13 2 4 14 2 4 15 10 29 99 BURST selects the time increment for transmitting the user selected error rate The choices are as follows SINGLE Selects a single error 25 mS to 975 mS Selects the error burst time in 25 mS increments 1 0 S to 5 0 S Selects the error burst time in 0 1 second increments ALARM ALARM indication to be applied to the signal The choices are as follows AIS Selects the Alarm Indication Signal RDI Selects the Remote Defect Indication alarm ALMIN ALMIN Alarm Insert toggles the insertion of
54. ours and minutes This result is N A unless the T MOD auxiliary function is set to TIMED TIME LEFT Timed Test Time Remaining The time remaining in the current test based on the test length and the elapsed time since the start of the test This result is N A unless the T MOD auxiliary function is set to TIMED 10 29 99 SECTION 5 Application Cards Introduction SECTION 5 APPLICATION CARDS 5 1 INTRODUCTION This section consists of the quick cards currently available for the T BERD 307 053 051 Analyzer Each quick card provides the information required to configure the analyzer for a particular type of test Cabling information is provided as well as a step by step procedure for performing the test Typical results may also be provided 10 29 99 5 1 SECTION 5 Application Cards Introduction 5 2 10 29 99 A 22 AIS Indication NEOOF SEC test result 4 6 Application Cards 5 1 AUX Switch 1 5 Auxiliary Functions CATEGORY switch 3 1 CURSOR switch 3 1 RESULT switch 3 1 SELECT switch 3 1 Auxiliary Port Connector 1 8 Battery Low LED 1 4 CATEGORY Switch 1 4 2 2 Connectors auxiliary port connector 1 8 051 REF jack 1 7 DS1 RX jack 1 7 051 TX jack 1 7 053 RX jack 1 7 DS3 TX jack 1 7 external power connector 1 8 CURSOR Switch 1 3 2 2 10 29 99 Index xD DISPLAY HOLD Switch 1 4 DS1 Alarm Criteria 1 14 DS1 BERT Instrument Checkout 1 19 DS1 BPV FRM Category Test Results 4 11
55. ransmitter ON or OFF The choices are ON SELECT switch up arrow toggles the transmitter on OFF SELECT switch down arrow toggles the transmitter off TXLVL TXLVL Transmit Level sets the transmitter output for the desired 053 signal level The choices are as follows HIGH Sets the transmit output signal level to 0 91 Vp Used to send the DS3 signal from the DS3 terminal location toward the DSX 3 patch panel DSX Sets the transmit output signal level to 0 6 Vp Used to send the DS3 signal from the DSX 3 patch panel IN jack The signal level is equal to a HIGH signal sent through 450 feet of coaxial cable TXTIM TXTIM Transmit Timing selects the transmit clocking source The choices are as follows INTERNAL Selects the internal crystal controlled oscillator RECOVERED Selects the clock signal recovered from the received data ER RT ER RT Error Rate selects the error rate to be applied to the signal The choices are as follows 1E 2 to 1E 7 Selects the error rate for insertion into the signal 10 29 99 2 7 SECTION 2 User Interface Description 053 Test Configuration Menu 2 3 10 BURST BURST selects the time increment for transmitting the user selected error rate The choices are as follows SINGLE Selects a single error at the user selected error rate 25 mS to 975 mS Selects the error burst time in 25 mS increments 1 0 S to 5 0 S Selects the error burst time in 0
56. red Seconds The percentage of severely errored seconds to total available seconds CSES Consecutive Severely Errored Seconds A count of 3 or more contiguous SES DEG MIN Degraded Minutes The number of minutes with a BER worse than 10 DEG MIN Percent Degraded Minutes A ratio of degraded minutes to total available minutes UNAVAIL SEC Unavailable Seconds A count of unavailable seconds since the test started 10 29 99 SECTION 4 TEST RESULTS 053 Test Results 4 24 BPV FRM Category The DS3 BPV FRM BPV amp Frame category test results are defined as follows VIOLATIONS Bipolar Violations The number of bipolar violations BPVs detected Intentional B3ZS code violations are excluded from the count BPV ERR RT BPV Error Rate The ratio of BPVs to received bits over the previous block of 105 bits BPV ERR SEC BPV Errored Seconds The number of seconds during which one or more BPVs occurred PAR ERRORS Parity P bit Errors The number of parity errors detected since initial DS3 frame synchronization PAR ERR RT Parity P bit Error Rate The ratio of parity errors to 1 the number of bits over which parity was calculated Bit mode or 2 the number of 053 M frames received Block mode The error rate is computed over the previous block of 105 bits The result is derived as a bit or block error rate based on the setting of ERR RECEIVE PAR ERR RT auxiliary
57. rent regulator circuits It can be used as an Alarm Indication Signal AIS in unframed circuits or a keep alive signal idle code or red alarm in other circuits 1 1 A fixed test pattern of alternating AMI ones marks and Zeros spaces that is used to perform a minimum level stress test on clock recovery circuits 1 7 A fixed test pattern of F0100 000 that is used to stress the minimum ones density requirement for AMI encoded 1 circuits 3 24 A fixed test pattern of F0100 0100 0000 0000 0000 0100 that provides the minimum ones desnity and the maximum excess zeros 15 requirements to stress T1 circuits This pattern violates the minimum ones density requirement when framed QRSS A modified 2 20 1 pseudo random pattern that allows a miximum of 14 sequential zeros and 20 sequential ones This pattern simulates live data for T1 circuits CODE CODE Line Coding enables toggling of the line coding between AMI and B8ZS The choices are as follows AMI Alternate Mark Inversion B8ZS Binary eight zero substitution encoding 10 29 99 2 4 5 2 4 6 2 4 7 2 4 8 10 29 99 SECTION 2 User Interface Description DS1 Test Configuration Menu DROP DROP 050 Drop enables selection of the DSO channel to be dropped The choices are as follows NONE No DSO channel will be dropped 1 to 24 Selects the DSO channel to be dropped RXLEV RXLEV Receive Level selects the input impedance
58. rogrammable Loop Up Pattern programs a 3 to 8 bit user defined loop up code The programmed loop up code is transmitted when the MUXED M13 or MUXED C BIT mode and the TID4 LPUP or TIESF LPUP pattern are selected The LCODE function must be set to PROGRAMMABLE Use the CATEGORY switch to move the cursor to the bit to be set Use the RESULT switch to toggle the bit between 1 and 0 Use the SELECT switch to save the pattern 10 29 99 2 3 20 2 3 21 2 3 22 10 29 99 SECTION 2 User Interface Description DS3 Test Configuration Menu LPDN LPDN Programmable Loop Down Pattern programs a 3 to 8 bit user defined loop down code The programmed loop down code is transmitted when the MUXED M13 or MUXED C BIT mode and the 04 LPDN or TIESF LPDN pattern are selected LCODE function must be set to PROGRAMMABLE Use the CATEGORY switch to move the cursor to the bit to be set Use the RESULT switch to toggle the bit between 1 and 0 Use the SELECT switch to save the pattern LCODE LCODE Loop Code Type selects the DS1 loop code for the MUXED M13 and MUXED C BIT modes the default type is CSU The appropriate loop code is transmitted when the TID4 LPDN 1 4 LPUP LPDN or TIESF LPUP pattern is selected The choices are as follows CSU Selects the customer service unit CSU loop code type FACILITY 1 Selects the Facility 1 NIU loop code type FACILITY 2 Selects the Facility 2 NIU loop code type PROG
59. st Configuration Menu 2 13 2 4 1 SRC Lotto tole Rud beu esate deos um 2 13 2 42 RE 2 14 10 29 99 SECTION DESCRIPTION PAGE 2 4 3 Eee EE CMS E 2 15 2 4 4 IDEO E CET 2 16 2 4 5 DROP sete webs 2 17 2 4 6 TO CRUS S 2 17 2 4 7 TOC dass UE deb ds ee RAP HEU 2 17 2 4 8 E En mee ES EO 2 17 2 4 9 cot qoem ecu tob 2 18 2 4 10 SUPR Cubes Up Ober Ee e 2 18 2 4 11 ER RT Lao Rex pea RU ROC RES 2 18 2 4 12 BURST sero nae ie OE a ERE OES 2 19 2 4 13 ALARM ets eae aden bak eg 2 19 2 4 14 ALMIN E Soo ege ead Ae 2 19 2 4 15 WISER Ul cate lec tata UP NIU MA 2 19 2 4 16 LES IG 2 20 2 4 17 KEEN eg n abitur ue 2 20 2 4 18 Vies ek uestes es ed weston 2 20 2 4 19 iere ee Rex UPS 2 20 2 4 20 CENTS 2 20 2 5 Printout 2 21 2 5 1 Connecting the Printer 2 21 2 5 2 Generating a Printout 2 22 3 AUXILIARY FUNCTIONS 3 1 3 1 InttOdUctIoD 22252 b esL ch de pu oy 3 1 3 2 Auxiliary Functions 3 1 4 TEST RESULTS rerit 4
60. the elapsed time since the start of the test This result is N A unless the T MOD auxiliary function is set to TIMED DS1 TEST RESULTS The DS1 receiver has full Bit Error Rate Test BERT capabilities and supports all the DS3 results defined in the following sections The available results depend framing type pattern synchronization etc Results that are not available display the message UNAVAILABLE in place of the result count The results that are not applicable to the current mode display N A in place of the result count When the displayed count exceeds 99 999 999 a gt greater than sign appears in the window When the number rolls over the count continues 10 29 99 4 9 SECTION 4 TEST RESULTS DS1 Test Results 4 3 1 4 3 2 4 10 SUMMARY Category Test Results The following DS1 test results appear in the SUMMARY category when they begin to detect error conditions ERRORS ERRORS category VIOLATIONS BPV amp FRAME category FRM ERRORS BPV amp FRAME category RS FREQ SIGNAL category ERRORS BPV 4 FRAME category C BIT ERRORS amp FRAME category TIMING SLIPS SIGNAL category When all SUMMARY results are error free the message ALL RESULTS OK is displayed When an error is detected the appropriate test result appears in the SUMMARY category window When more than one error is detected press the RESULTS switch to scroll through the results
61. xpressed as a percentage of severely errored seconds to the number of available seconds CSES Consecutive Severely Errored Seconds A count of groups of three or more contiguous SES DEG MIN Degraded Minutes The number of minutes with a BER worse than 10 DEG MIN Percent Degraded Minutes The ratio of degraded minutes to total available minutes UNAVAIL SEC Unavailable Seconds The number of unavailable seconds since the test started 433 BPV FRM Category The DS1 BPV FRM BPV amp FRAME category test results are defined as follows VIOLATIONS Bipolar Violations The number of bipolar violations BPVs detected Intentional B8ZS code violations are excluded from the count 10 29 99 4 11 SECTION 4 TEST RESULTS DS1 Test Results 4 12 BPV ERR RT BPV Error Rate The ratio of BPVs to received bits since initial pattern synchronization BPV ERR SEC BPV Seconds The number of seconds during which one or more BPVs occurred FRM ERRORS Frame Errors A count of frame errors since initial DS1 frame synchronization FRM ERR RT Frame Error Rate The ratio of frame errors to received framing bits FRM ERR SEC Frame Errored Seconds The number of seconds with one or more frame errors FRM SES Frame Severely Errored Seconds The number of seconds with frame errors equal to 12 or more D4 framing only FRM L SEC Frame Loss Seconds The number of seconds dur
62. ync and Pattern Sync LEDs illuminate 12 Press the RESTART switch Select the SUMMARY category and verify the display indicates ALL RESULTS for 051 and DS3 1 4 44 DS1 BERT Instrument Checkout DS1 Analysis Option 13 Configure the T BERD 307 for a DS1 loopback test as shown in Table 1 5 Table 1 8 DS1 BERT Loopback Configuration Switch Action MODE Select 051 CURSOR Select SRC SELECT Select EXTERNAL CURSOR Select FRAME SELECT Select 04 CURSOR SELECT Select PATT Select 2 23 1 CURSOR Select CODE SELECT Select B8ZS CURSOR Select RXLEV SELECT Select DSX MON CURSOR SELECT Select TX Select ON CURSOR Select TXLEV SELECT Select 0 dB DSX CURSOR Select TXTIM SELECT Select INTERNAL MODE Select RESULTS 14 Connect the DS1 TX jack to the DS1 RX jack using a bantam to bantam cable 10 29 99 SECTION 1 GETTING STARTED Preventive Maintenance 1 5 1 5 1 1 5 2 1 20 15 Verify the Signal Present Frame Sync and Pattern Sync LEDs illuminate 16 Press the RESTART switch Select the 051 SUMMARY category and verify the display indicates ALL RESULTS OK PREVENTIVE MAINTENANCE Preventive maintenance PM consists of visually inspecting and cleaning the T BERD 307 The required frequency of maintenance depends on the environment in which the instrument is us

T-BERD 307 DS3/DS1 ANALYZER USER`S MANUAL

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