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N1660A User`s Guide

1. ALARM CDI Alarm Density Violations 11394 VF RESULITS RX1 Dropped Chan N A Freq Hz 0 Level dBm 0 0 Chan Data 0000 0000 TX1 Inserted Chan N A Freq Hz 404 Level dBm 25 0 Signaling Bits 0000 DDSURESUNG S S8 SS SS 492 SSeS Ss aa ae Format OFF Rate N A Channel N A User N A Code Description Data Count Duration 00000000 0 0 MJUH MJU Hub ID 0000000 0 0 UMCV Unassigned MUX Channel Data Voice 01000000 0 0 UMCV Unassigned MUX Channel Data Voice 000000 0 0 UMCV Unassigned MUX Channel Data Voice 00100000 0 0 DSODP DSO DP Latching Loopback 0100000 0 0 DSODP DSO DP Latching Loopback 01100000 0 0 DSODP DSO DP Latching Loopback 100000 0 0 DSODP DSO DP Latching Loopback 00010000 0 0 DSODP DSO DP Latching Loopback 0010000 0 0 MJU Multi Junction Unit 01010000 0 0 MJU Multi Junction Unit 010000 0 0 MJU Multi Junction Unit 00110000 0 0 MJU Multi Junction Unit 0110000 0 0 MJU Multi Junction Unit 01110000 0 0 MJU Multi Junction Unit 110000 0 0 MJU Multi Junction Unit 00001000 0 0 MJU Multi Junction Unit 0001000 0 0 MJU Multi Junction Unit 01001000 0 0 MJU Multi Junction Unit 001000 0 0 MJU Multi Junction Unit 00101000 0 0 MJU Multi Junction Unit 0101000 0 0 MJU Multi Junction Unit 01101000 0 0 MJU Multi Junction Unit 101000 0 0 UMC Unassigned MUX Channel Data 00011000 0 0 UMC Unassigned MUX Channel Data 0011000 0 0 MOS MUX Out
2. L 1 2 F ETCh SLIP NFRAMe This count indicates that frame slips occurred when the receive signal was slower than the reference signal Default 0 Dual DS1 0 SCPI Commands Querying the Loop up and Loop down Status Querying the Loop up and Loop down Status This section lists the commands that let you query the status of the tester and the remote network device L 1 2 FETCh LOOPcode DETect This command returns one of the following values Return Value Description 0 Loop code not detected Oxfe Receiving loop Oxff Receiving unloop L 1 2 F ETCh LOOPcode RE Mote This command returns the status of the remote device Return Value Description 0 Loop code not detected Oxfe Receiving loop Oxff Receiving unloop Dual DS1 0 SCPI Commands L 1 2 FETCh LOOPcode LOCal L 1 2 F ETCh LOOPcode LOCal This command returns the ID of the active local loop 0 not looped L 1 2 FETCh LOOPcode TYPE If there is an active local loop this command returns one of the following codes See Loop Code Controls page 5 26 for more information about the listed loop codes Return Value Description 0 Loop code not detected 1 CSU loop code detected 2 NIU loop code detected 3 NIU4 loop code detected 4 NIUG loop code detected 5 FDL_LLB loop code detected 6 FDL_PLEB loop code detected 7 FDL_NIU loop code detected
3. 8 83 Dual DS1 0 SCPI Commands Querying the VF Signaling Measurements Querying the VF Signaling Measurements This section lists the commands used to query the VF tone and frequency measurements L 1 2 FETCh TONE FREQ1 FREQ2 This command returns the measured frequency at the first highest FREQ1 or second FREQ2 highest level L 1 2 FETCh TONE LEV1 LEV2 This command returns the first LEV1 and second LEV2 measured signal level Dual DS1 0 SCPI Commands L 1 2 FETCh SIGN al lt signaling bit gt L 1 2 F ET Ch SIGNal lt si gnali ng bit gt The following chart lists the four variations of this command used to look at the settings for the A B C and D bits The module determines which channel to query by looking at the channel specified in the DT1 L 1 2 ROUT DMUX DROP lt 1 24 gt command see page 8 11 For example if you enter DT1 L1 FETC SIGN ABIT the module sends back the signaling pattern set for the ABIT on the configured channel Signaling Bits Description Signaling Bit Description ABIT Displays the setting for the ABIT on the selected channel BBIT Displays the setting for the BBIT on the selected channel CBIT Displays the setting for the CBIT on the selected channel DBIT Displays the setting for the DBIT on the selected channel 8 85 Dual DS1 0 SCPI Commands Querying Performance Report Message Counts Querying Performance Report
4. Auto Detect Invert Pattern m Patterns re The following table defines the selectable density test patterns Density Test Pattern Descriptions Pattern Description 1 3 A one and three pattern a single binary 1 and three Os 1 5 A one and five pattern a single binary 1 and five Os 1 6 A one and six pattern a single binary 1 and six Os 2 8 2 14 A two and eight pattern two binary 1s and six Qs and so on 3 18 3 23 A three and eighteen pattern three binary 1s and fifteen Os and so on 5 15 T1 Testing Screen Reference Digital Data Service DDS Settings Digital Data Service DDS Settings BERT Pattern Setup DDS1 Category Select a Pattern to BERT eae o User Programmable Auto Detect Invert Pattern m Patterns Szi The following table defines the selectable DDS test patterns DDS Test Pattern Descriptions Pattern Description DDS1 A repeating pattern of FF 00 hex 100 octets of 1111 1111 FF followed by 100 octets of 0000 0000 00 This pattern switches rapidly between maximum and minimum ones density creating extreme stress on power supplies timing recovery circuits ALBO circuits and repeater equalization circuits DDS1 contains 100 bytes of hex 00 1 000 binary zeros in a row Using this pattern on a T1 or DSO circuit running over AMI line coded facilities will cause a traffic affecting failure of that facility 5 16 T1 Testing Sc
5. violation Rate The ratio of BPVs to the number of bits received ES The number of seconds during which at least one BPV occurred SES BPV severe errored seconds CSES The number of SESs for which the previous two seconds were also SESs UAS Number of seconds the circuit was unavailable while errors were being monitored EFS The number of seconds during which no BPVs occurred CRC cyclic Count The number of CRC 6 errors detected ESF format redundancy only checksum Rate The ratio CRC 6 errors over the total number of ESF frames received ES The number of seconds during which at least one CRC error occurred SES CRC severe errored seconds CSES The number of SESs for which the previous two seconds were also SESs UAS Number of seconds the circuit was unavailable while errors were being monitored EFS The number of seconds during which no CRC errors occurred 5 32 T1 Testing Screen Reference Detailed Results Tab BERT Error Count Descriptions continued Type of Error Frame Result Description Count The number of frame bit errors detected Rate The ratio of errored framing bits to the total number of framing bits received ES The number of seconds during which at least one frame bit error occurred SES Frame severe errored seconds CSES The number of SESs for which the previous two seconds were also SESs UAS Number of seconds the circuit was una
6. ACTion lt OFF IMMediate APPly gt 8 12 Dual DS1 0 SCPI Commands L 1 2 SENSe AUDio S PEAKer STATe lt ON OFF gt L 1 2 SENSe AU Dio SPEAKer STATe lt ON OFF gt This command sets the Service Advisor platform s audio feature ON or off When you use this command to turn the platform s audio ON you hear tones from various tests through the Service Advisor s speaker When you use this command to turn the Service Advisor s audio off you still hear Service Advisor sounds such as key clicks Note To mute all sounds picked up by the Service Advisor s audio feature use the Mute option on the Service Advisor Utilities window See Adjusting Tablet Properties in Chapter 2 of the HP Service Advisor Portable Test Tablet User s Manual Default OFF L 1 2 SE NSe AU Dio SPEAKer VOLume lt sgti ng gt This command sets the Service Advisor platform s audio speaker volume in percentage format Parameter Range Oto 100 Default 0 L 1 2 SENSe AU Dio HANDset STATe lt ON OFF gt Use this command to set the handset s audio feature ON or off if you have connected a handset to the Dual DS1 0 test module Default OFF Dual DS1 0 SCPI Commands L 1 2 SENSe VF STATe lt ON OFF gt L 1 2 SENSe VF STATe lt ON OFF gt Use this command to enable or disable VF frequency and level measurements Set this parameter to off if you want to use the Call Monitor Logging functi
7. Category Select a Pattern to BERT The following table describes the standard BERT patterns Standard BERT Patterns Pattern Description ORSS Quasirandom signal source useful for stressing 1 54 Mb s lines A 270 1 pattern with a 14 zero constraint This pattern simulates live traffic ONES All ones 1111 This pattern consists of pulses only and is useful for stressing the repeater power consumption level when the maximum number of pulses is present This pattern is also used when measuring the signal power level at a DSX bay ZEROS All zeros 0000 which may help locate bridge taps 1 1 Alternating ones and zeros 1010 pattern 1 7 A one and seven pattern a single binary 1 and seven Os Also called 1 8 or one in eight 3 24 3 in 24 A 12 5 ones density pattern 63 A 63 bit PRBS used for DSO testing on DDS channels 511 A 511 bit PRBS used for DSO testing on DDS channels 5 9 T1 Testing Screen Reference Standard BERT Patterns Standard BERT Patterns continued Pattern Description 2047 A 2047 bit PRBS used for DSO testing on DDS channels 2 15 1 Pseudorandom bit sequence PRBS For example 2 15 1 is a 2 5 1 PRBS This pattern is used to stress clock recovery circuits with a maximum of 14 consecutive zeros 2 20 1 This pattern stresses AMI coded 1 54 Mb s circuits beyond the standard specified limits 2 23 1 This pattern stresses AMI coded 1 54 Mb
8. 1N3 1N5 1N6 1N8 One in three pattern and so forth 2N8 2N9 2N10 2N11 2N12 2N13 2N14 Two in eight pattern and so forth 3N18 3N19 3N20 3N21 3N22 3N23 3N24 Three in eighteen pattern and so forth 520CT 530CT 540CT 550CT 720CT 960CT 1200CT Fifty two octet pattern and so forth DDS1 A repeating pattern of FF 00 hex 100 octets of 1111 1111 FF followed by 100 octets of 0000 0000 00 This pattern switches rapidly between maximum and minimum ones density creating extreme stress on power supplies timing recovery circuits ALBO circuits and repeater equalization circuits DDS1 contains 100 bytes of hex 00 1 000 binary zeros in a row Using this pattern on a T1 or DSO circuit running over AMI line coded facilities will cause a traffic affecting failure of that facility 8 30 Dual DS1 0 SCPI Commands L 1 2 SOURce DATA PATTern lt BERT data pattern gt DT1 L 1 2 SOURce DATA PATTern lt BERT pattern gt Parameters continued Pattern Description DDS2 A repeating pattern of 7E 00 hex 100 octets of 0111 1110 7E followed by 100 octets of 0000 0000 00 This pattern switches rapidly between HDLC SLDC protocol 7E flags or idles and all zeros which detects some pattern sensitivity problems The 00 portion of the pattern creates extreme stress on timing recovery ALBO and repeater equalization circuits DDS2 contains 100 bytes of hex 00 1 000 binar
9. Glossary 1 Glossary D4 See SF DACS Digital access and cross connect system Daly pattern A repeating 55 octet pattern datalink A transmission path for data dB Decibel Standard unit for transmission loss gain and relative power ratios dBdsx level Decibels relative to the DSX dBm Decibels relative to one milliwatt dBrnc Decibels relative to network carrier dc Direct current DCC Data communications channel DCE Data circuit terminating equipment Equipment that provides the interface between a DTE device anda transmission circuit for example a modem DCS Digital cross connect system DDL Derived Data Link DDS Digital Data Service DLC Digital loop carrier system DRS Digital reference signal DSO Digital signal level 0 typically 64 or 56 Kb s DS1 Digital signal level 1 1 544 Mb s DS2 Digital signal level 2 6 312 Mb s DS3 Digital signal level 3 44 736 Mb s DSU Digital Service Unit DSX A digital signal cross connect and patch bay DTE Dataterminal equipment Equipment that converts user information into data signals for transmission for example a PC dumb terminal A passive unintelligent device that serves as a remote Service Advisor emulator EFS Error free second error rate The number of errors per second Compare error ratio error ratio The number of errors over the total number of bits This term is often used
10. 6 3 Using the Signaling Option 010 Monitoring Channel Status Follow these steps to use the monitor channel status feature 1 2 Tap the AB CD Decode button on the main Dial Monitor Test screen Tap the Display button and select the line you want to monitor see screen on previous page In Drop Insert test mode the lines are defined as follows RX1 from the Cl RX2 from the CO RX1 from the CO RX2 from the Cl Tap the Mode button to select the signaling mode Select Signaling Mode Monitor indicates you want to monitor the signaling bits on all 24 channels on the selected receive T1 line see Display button in both directions In this mode you cannot use the Dial On Hook or Off Hook buttons E mulate CO indicates you want to monitor the signal being transmitted from the CO to the CI and the signal being sent from the CI to the CO E mulate CI indicates you want to monitor the signal being transmitted from the CI to the CO and the signal being sent from the CO to the Cl Tap the Trunk button and select the desired trunk type Each trunk type has its own signaling bit scheme to represent on hook off hook and ringing signals Select Trunk Type _crindstat tsopstar convine start E amp M i 6 4 Using the Signaling Option 010 Entering a Dial String 5 View the signaling bits display area e On Hook Off Hook and Ri ngi ng rows display a telephone icon that shows the current stat
11. HANDSET TX1 RX1 line 1 DS1 0 line connections TX1 O Handset connection RX1 C GC RDY SIG FRM PATT ERR SIG FRM PATT ERR HIST U W RDY SIG FRM PATT ERR SIG FRM PATT ERR HIST L1 L2 S r CA Status indicators Using the Dual DS1 0 Test M odule The Dual DS1 0 Test M odule N1660A at a Glance Module Status Indicators The status indicators on the front of the module provide a visual indicator of when the module is ready for testing and the different conditions that occur such as signal detection and loss of signal during a test The table below describes the status indicators on the Dual DS1 0 plug in module Plug in Module Status Indicators Indicator Description RDY Green LED indicates the Dual DS1 0 Test module is ready for testing SIG Green LED indicates the tester has detected a signal Red LED indicates there is a loss of signal LOS FRM Green LED indicates the tester has detected framing Red LED indicates there is a loss of framing LOF PATT Green LED indicates the tester has detected a BERT pattern Red LED indicates there is a loss of pattern LOP When you run a Tone test the LED is off ERR Red LED indicates the tester has detected an alarm or error condition HIST Red LED indicates an error or alarm condition occurred in the previous test 1 3 Using the Dual DS1 0 Test M odule Connecting a Service Advisor to
12. Signal Loss The number of one second intervals during which at least one loss of signal LOS event occurred and the number of LOS detected during the test Frame Loss The number of seconds when at least one frame sync loss event occurred and the number of frame synchronization loss events detected A frame loss event is declared when two out of five frame bits are errored Pattern Loss The number of seconds since start of test the Service Advisor was not synchronized on the receive signal pattern and the number of times the Service Advisor lost synchronization with the receive signal pattern Density Violations The number of ones density violations A ones density violation is declared when more than 15 consecutive zeros are received or when the ones density drops below 12 5 Every 8x N 1 bits must contain at least N ones where N can be 1 through 23 T1 Testing Screen Reference Test Summary Tab AIS The number of one second intervals during which at least one AIS event occurred and the number of AIS errors detected during a test Yellow Alarm The number of one second intervals during which at least one Yellow alarm event occurred and the number of Yellow alarms detected during a test With D4 SF a Yellow alarm is indicated when bit 2 of each DSO has been zero for 255 consecutive channels With ESF a Yellow alarm is indicated when the FDL contains an alternating OOF F hex pattern CDI Alarm The number of one se
13. Type of Termination Description TERMinal The receive signal is terminated to 100 ohms and a full span automatic equalizer ALBO is provided to compensate for cable loss This selection is typically used for out of service testing MONitor The receive signal is a DSX 1 monitor level signal This selection is typically used to monitor a signal through a DSX monitor jack that is resistor isolated from the span BRIDge The receive signal is bridged to one side of the span The Service Advisor is set to a high impedance state greater than 1000 ohms This selection is typically used to monitor in service spans that do not have a DSX monitor jack Default TERMinal 8 24 Dual DS1 0 SCPI Commands L 1 2 SOURce M ULTiplier lt NX56 NX64 gt L 1 2 SOURce MULTiplier lt NX56 NX64 gt This command lets you configure the base rate for the FT1 signal DT1 L 1 2 SOURce MULTiplier lt DSO multiplier gt Parameters DSO Multiplier Description NX56 Selects 56 Kb s channels NX64 Selects 64 Kb s channels Default NX64 L 1 2 SOURce LBO lt li ne build out gt This command lets you configure the type of line build out you want to use Parameter Range ODB 7 5DB 15DB 22 5DB OFT 266FT 399FT 533FT 655F T Default ODB SOURce TIMEtest lt durati on gt This command lets you configure the amount of time in seconds to run a test see Setting the Test Duration page 1 16 To
14. BERT Bit error ratio testing This term is often used interchangeably with bit error rate testing B ISDN Broadband ISDN See also ISDN bisync Bisynchronous transmission bit A basic unit of data A bit can be set to either a zero or aone BITS Building integrated timing supply A stratum 1 clock source typically in a CO Blue alarm Original name for alarm indication signal BnZS Bipolar with n zero substitution A line coding scheme in which n consecutive zeros are replaced by a substitution code to maintain a high pulse density Typical codes are B3ZS for DS3 and B8ZS for DS1 BPV Bipolar violation The occurrence of a pulse that breaks the alternating polarity rule Bridged Tap Unconnected cables on a reconditioned line a common cause of problems with digital services BW See bandwidth byte Eight bits Usually refers to a particular location in a frame CCITT Consultative Committee on International Telegraph and Telephone now the International Telecommunications Union ITU The standards produced by this organization are called ITU T Recommendations clock The timing of or timing source for digital telecom equipment COFA Change of frame alignment A shift in the alignment of a signal s framing bits CPE Customer premises equipment CRC Cyclic redundancy checksum A basic error checking technique CSES Consecutively severely errored second CSU Customer Service Unit
15. LOP Times a loss of pattern alarm was detected LOP_SEC Seconds during which a loss of pattern alarm was detected AIS Times an AIS alarm was detected AIS_SEC Seconds during which an AIS alarm was detected AIS_OCC Occurrence count of AIS alarms YELlow Times a yellow alarm was detected 8 76 Dual DS1 0 SCPI Commands L 1 2 FETCh ALARm lt type gt Alarm Status continued Type Fetches number of YELlow_SEC Seconds during which a yellow alarm was detected YELow_OCC Occurrence count of yellow alarms PDV Times a pulse density violation PDV alarm was detected PDV_SEC Seconds during which a PDV alarm was detected cDI Times a Customer Disconnect Indicator CDI alarm was detected CDI_SEC Seconds during which a CDI alarm was detected CDI_OCC Occurrence count of CDI alarms 8 77 Dual DS1 0 SCPI Commands Querying Error Information Use the FETCh commands described in this section to query the L 1 2 F ETCh E RRor lt type gt The following chart lists all the types of errors you can look at using this command For example if you enter DT1 L1 FETC ERR BPV the module sends back the response 1 if a loss of bi polar violation was detected on line RX1 TX1 0 is the response if no BPV errors are detected Error Information Type Fetches BIT Bit error count BIT_RATIO Bit error count ratio BIT_EFS The number of seconds during which no bit error
16. 2 Tap the Detailed Results tab to view error rates errored seconds pattern sync losses and CRC errors See Detailed Results Tab page 5 31 for a description of results displayed on this tab If you tap the Notation button the errored seconds ES severely errored seconds SES consecutive severely errored seconds CSES unavailable seconds UAS and error free seconds EFS values are shown as a percentage Test CD eel ee CSES _ UAS 0 0 0 0 0 0 0 0 _ Notation 4 40 Testing T1 Circuits View ing Test Results 3 Tap the Signal tab to display the physical characteristics of the signal such as frequency signal level bit slips and frame slips See Si gnal Tab page 5 34 for a description of results displayed on this tab Test Detailed AB CD Summary SU Bits 4 Tap the VF tab to select a channel to drop to the Service Advisor s speaker adjust the speaker s volume insert a tone into a selected channel and run a Three Tone Slope test See Setting the Voi ce Frequency Audio Controls page 4 28 for instructions on using this tab and see VF Tab page 5 36 for a description of results displayed on this tab Test Detailed 4 AB CD kaea oH floor He Tone me E 0 dBm foooo 0000 fasaem 4 41 Testing T1 Circuits View ing Test Results 5 Tap the AB CD Bits tab to view the signaling bits set for all 24 channels on a T1 line See AB CD Bits Tab page 5
17. If you press the Cancel button no channels are selected and you return to the T1 Testing screen Continue to Running a T1 Test on page 4 35 to start your test 4 10 Testing T1 Circuits Configuring BERT Settings Configuring a Digital Data Service DDS BER Test Use the DDS T1 Testing tab to access a DDS channel within a T1 signal The DDS signal is transmitted on the selected T1 channel and an idle signal is generated on all other channels To set up and runa DDS BERT test follow these steps 1 2 Tap the T1 Testing toolbar button to access the T1 Testing screen Tap the Line button on the T1 Testing screen to select the line on the module you want to use to transmit the signal Tap the Pattern button in the Transmitter Setup section When the BERT Pattern Setup screen appears tap the DDS button in the category column and then one of the DDS DDS1 through DDS6 pattern buttons See Digital Data Service DDS Settings page 5 16 for more information about the DDS patterns BERT Pattern Setup DDS1 Category Select a Pattern to BERT E om User Programmable 4 11 Testing T1 Circuits Configuring BERT Settings 5 Tap the DDS tab on the T1 Testing screen Test Detailed 5 AB CD sano Recs Sona WF Noe Pm Description Data Count Duration DSOB 4800 2 1 Format Rate Channel User 6 Tap the Format button and select either the DSOA or DSOB format of the DSO signal
18. Ordering Accessories Contact your Agilent representative to purchase any of the following items or to find out more information Dual DS1 0 Test Module Accessories ProductNumber Product Description E6361A T1 Mini bantam cable set E6360A Standard telephone handset N1660A 910 Additional user s manual Agilent Technologies Limited Warranty Agilent Product Duration of Limited Warranty Dual DS1 0 Test Module N1660A 3 years 1 Agilent warrants to you the end user customer that Agilent hardware accessories and supplies will be free from defects in materials and workmanship after the date of purchase for the period specified above If Agilent receives notice of such defects during the warranty period Agilent will at its option either repair or replace products which prove to be defective Replacement products may be either new or equivalent in performance to new Agilent warrants to you that Agilent software will not fail to execute its programming instructions after the date of purchase for the period specified above due to defects in material and workmanship when properly installed and used If Agilent receives notice of such defects during the warranty period Agilent will replace software which does not execute its programming instructions due to such defects Agilent does not warrant that the operation of Agilent products will be uninterrupted or error free If Agilent is unable within a reasonable time
19. decode button 6 4 tab 4 33 4 39 4 42 5 38 AIS signal 3 7 5 5 alarms 5 24 T1 5 24 alarm seconds 3 6 AMI line code 8 22 amplitude 7 6 audio to handset specifying with SCPI 8 13 audio to speaker adjusting 4 29 specifying with SCPI 8 13 audio volume specifying with SCPI 8 13 8 14 Auto Setup button 1 5 1 14 B8ZS line code 8 22 BERT bit pattern user defined with SCPI 8 27 byte pattern user defined with SCPI 8 28 channel selecting with SCPI 8 11 configuring 4 5 data pattern user defined with SCPI 8 29 end to end tests 4 5 out of service tests 4 5 pattern 3 7 4 5 4 7 5 9 inverting 8 33 sequences 1 10 4 14 BTP 4 14 4 15 customized 4 14 4 20 field descriptions 5 19 5 23 MTP 4 14 4 15 BERT patterns 5 8 5 18 BTP 5 22 density 5 15 MTP 5 23 Octet 5 11 standard 5 9 user programmable 5 14 BERT sequences 1 10 bit pattern 8 27 8 33 bridged mode 3 3 Bridge Tap Pattern BTP running test 4 15 test patterns 5 22 build out button 5 19 burst error injection rate 5 25 buttons Auto Setup 1 5 Event Log 1 5 1 13 File 1 6 Start 1 6 Stop 1 6 T1 Analysis 1 5 3 3 T1 Testing 1 5 4 3 Test 1 5 byte pattern 8 28 8 33 Index 1 Index C call monitor log 6 15 logging button 6 15 CDI alarm 3 7 5 6 Channel Service Unit see also CSU selecting with SCPI 8 21 channel status monitoring 6 2 Cl emulate 6 4 circuit ID 2 5 clocking selecting with SCPI 8 23 source 5 1
20. 0100 0000 0000 0000 10 19 3 in 23 F0100 0100 0000 0000 0000 100 20 3 in 24 F0100 0100 0000 0000 0000 0100 21 ORSS 220_1 Pseudorandom with 15 zeros suppression Note An Interpattern Advance Byte code F1111 1010 is transmitted between each pattern in the BTP test allowing two test sets to sync on the transmitted pattern MTP Patterns An MTP BER test transmits the following patterns which are useful for qualifying T1 circuits and performing acceptance testing Patterns Transmitted during the MTP Transmit Order Pattern Pattern Makeup 1 All ones F1111 2 1 8 F0100 0000 3 2 8 F1100 0000 00 4 3 in 24 F0100 0100 0000 0000 0000 0100 5 QRSS 220_ 1 pseudorandom bit sequence with 15 zeros suppression Note An Interpattern Advance Byte code F1110 1110 is transmitted between each pattern in the MTP test allowing two test sets to sync on the transmitted pattern T1 Testing Screen Reference Error Alarm Injection Error Alarm Injection This section describes the types of alarms errors and the rate at which you want to inject errors into the BERT payload pattern The settings are grouped by button names To inject errors select the type of error and the rate at which you want to inject an error and then tap the Inject button The inject indicator on the Inject button lights while the Service Advisor injects an error into the BERT payload pattern Error Alarm Types The Type button on the T1 Tes
21. 1 ODB Coding Framing Pattern FracT1 Clocking Build Out Tap the Type and Rate buttons to configure the rate and frequency of injecting errors or alarms into the BERT payload pattern See Error Alarm Injection page 5 24 for a description of the Error Alarm Injection buttons OFF SINGLE Type Rate Inject Tap the Code button to select aloop code You can inject loop codes when you set the Test Modeto T1 Normal CSU Channel Service Unit or Drop Insert mode See Loop Code Controls page 5 26 for a description of the loop code buttons NONE Loop Loop U Code Bown To test the second T1 line press the Line button and select RX2 T X2 e Tap the Test Mode button and select the test you want to run on line 2 L2 from the popup menu Repeat steps 4 through 7 to configure the second line Now that you have configured the test you want to run on a T1 line continue to the next section for instructions on running atest injecting errors or alarms into a BERT payload pattern or turning loop codes ON and off 4 4 Testing T1 Circuits Configuring BERT Settings Configuring BERT Settings This section describes how to perform an out of service bit error rate test BERT on a T1 span During a BERT a test pattern is transmitted over the span and then evaluated Any differences between the transmit and receive patterns are considered errors You can perform a round trip BERT test with a single Service Advisor with a Dua
22. 4 lt string gt SOURce INBANd LPDN PROGI1 4 lt string gt This command lets you specify four user defined inband loop down codes Each code can be up to 8 bits for example 1011 0000 You use this command in conjunction with the loop code type command see page 8 48 Example DT1 L1 SOUR INBAN LPDN PROG1 10110000 Default 00000000 SOURce OUTBANd LPUP PROG1 4 lt string gt This command lets you specify four user defined out of band loop up codes Each code can be up to 8 bits for example 1010 1010 You use this command in conjunction with the loop code type command see page 8 48 Example DT1 L1 SOUR OUTBAN LPUP PROG1 10101010 Default PROG1 10101010 PROG2 01010101 PROG3 11110000 PROG4 00001111 Dual DS1 0 SCPI Commands SOURce OUTBANd LPDN PROG1 4 lt string gt SOURce OUTBANd LPDN PROGI 4 lt string gt This command lets you specify four user defined out of band loop down codes Each code can be up to 8 bits for example 0101 0101 You use this command in conjunction with the loop code type command see page 8 48 Example DT1 L1 SOUR OUTBAN LPDN PROG1 10101010 Default PROG1 10101010 PROG2 01010101 PROG3 11110000 PROG4 00001111 Dual DS1 0 SCPI Commands SOURce OUTBANd LPDN PROG1 4 lt string gt Transmitter Alarm and Error Injection Commands This section describes the SOURce commands that let you configure the type of error or alarm and
23. 8 71 8 93 Index R report default filenames 2 9 deleting 2 15 filenames 2 7 header information 2 4 option 1 6 printing 2 2 samples 2 17 2 23 saving 2 6 resetting test set 8 7 results tab 4 39 retrieving results description 8 71 rise time 7 6 RX1 RX2 Status LEDs 3 2 results 3 5 RX input button 5 4 selecting 4 3 RX pulses 3 6 S save configuration settings 4 44 report 2 6 SCPI alarm commands 8 52 audio volume 8 13 8 14 BERT configuration commands 8 26 BERT sequences commands 8 34 clock source 8 23 command set prefix 8 3 command syntax 8 2 8 6 data capture commands 8 60 DDS control commands 8 43 error commands 8 52 framing format 8 22 FT1 signal rate 8 25 Index 5 Index SCPI continued injecting errors 8 53 line build out LBO 8 25 line code 8 22 line configuration commands 8 20 loop code commands 8 47 PRM configuration commands 8 38 programming a DS1 0 test 8 7 pulse mask test commands 8 16 query commands 8 71 return codes 8 8 root nodes 8 4 route commands 8 10 selecting BERT channel 8 11 selecting drop channel 8 11 selecting insert channel 8 11 selecting test mode 8 21 sending multiple command 8 6 sense commands 8 12 signaling option commands 8 63 source commands 8 20 8 59 specifying audio to handset 8 13 specifying audio to speaker 8 13 starting a test 8 9 termination mode 8 24 test time 8 25 three tone slope commands 8 41 VF frequency measurement 8 1
24. Entry Incorrect Entry SOURCE SOURC SourCe SOU sour Sourc Using Parameters Parameters provide a setting for the command for example ON or OFF They follow the nodes of commands and are listed in angle brackets lt gt Multiple command parameters are separated by a vertical bar Specify only one parameter when you issue the command 8 5 Dual DS1 0 SCPI Commands SCPI Command Syntax Separating Commands and Parameters The following table lists the different separators you can use between commands and parameter SCPI Command Separators To Separate Use Example A command set prefix from a Colon DT1 L1 root node A root node from a lower level Colon DT1 L1 SOUR node A parameter from a command Space DT1 L1 ROUT DMUX DROP 2 Multiple commands entered ina Semicolon DT1 SOUR TEST STAT ON DT1 INIT command string Sending Multiple Commands in a Command String You can send multiple SCPI commands in the same command string The commands execute one at a time in the order in which you have entered them To separate the commands use a semicolon See example in table above Note You must always enter the DT1 RST command by itself on a command line 8 6 Dual DS1 0 SCPI Commands Programming a DS1 0 Test Programming a DS1 0 Test This section explains how to a test module before running a test provides a guideline for entering commands in the proper
25. LONGn buttons to select one of the pre programmed BERT patterns See User Programmable Sati ngs page 5 14 for a list of the default settings e Tap the Invert Patterns button if you want to invert the BERT pattern To change a default pattern see Entering a New BERT Pattern page 4 7 e If you press the Cancel button no BERT pattern is selected and you return to the T1 Testing screen Continue to Running a T1 Test on page 4 35 to start your test 4 6 Testing T1 Circuits Configuring BERT Settings Entering a New BERT Pattern You can enter a new BERT pattern by overwriting one of the user programmable settings To change a default pattern complete these steps 1 Tap the Pattern button in the Transmitter Setup section of the T1 Testing screen Tap the User Programmable button Tap the Press to Program User Patterns button This puts you in edit mode In this mode you can edit one or all eight user programmable BERT patterns Configured value BERT Pattern Setup QRSS Category Select a Pattern to Program USER1 BIT USER2 BIT USER3 BIT USERS BIT 11110000 4011004110 1000100010 1111111100 LONG1 BYTE LoNG2 BYTE LoNG3 BYTE LONG4 BYTE ABCDEFGHIJ abcdefghij 0123456789 9876543210 Press to Select User Patterns Auto Detect dD Invert Pattern Patterns Tap one of the USE Rn or LONGn buttons to select the default pattern you want t
26. Ne P oe Eons 0 dBm ooon 0000 F 25 dam m seconds AMI ESF NONE 1536 Kb INT OdB oe Coding Framing Pattern FracT1 Clocking Build Out 7 Pattern Single None Loop Loop M Mute Type Rate Code Up Down The three display fields in the Drop Channd Audio section of the VF tab are described below To display values for the different channels tap the A and Y buttons and the button to select a channel number To select a line tap the Line button on the left side of the screen until the desired line appears in the display see page 4 4 Frequency display Shows the receive frequency in Hertz for the selected channel Level display Shows the receive level in dBm for the selected channel Data display Shows the data on a selected channel 1 24 on the selected Line RX1 TX1 or RX2 TX2 The data is shown eight bits at a time and is continuously updated 3 Tone Slope display Shows the receive level in dBm for the selected channel detected at the 404 1004 and 2804 Hertz levels Source button Lets you set the frequency of the tone you want to insert into a channel 5 36 T1 Testing Screen Reference VF Tab Level button Lets you enter the level of the tone 35 to 3 dBm you want to transmit over the T1 line Tone Duration button Lets you set the amount of time 1 to 9 999 seconds you want to send the configured tone over the T1 line The tone duration is only used for th
27. POSitive FALL Use this command to query the fall time of the positive pulse in nanoseconds L 1 2 FETCh PMASkK POSitive WIDTh Use this command to query the width of the positive pulse in nanoseconds L 1 2 FETCh PMASkK POSitive OSH Use this command to query the overshoot percentage of the positive pulse L 1 2 FETCh PMASk POSitive USH Use this command to query the undershoot percentage of the positive pulse Dual DS1 0 SCPI Commands L 1 2 FETCh PM ASk NEGative DATA L 1 2 F ETCh PMASK NEGative DATA Use this command to query the data points of the negative pulse L 1 2 F ETCh PMASK NE Gative F IT Status Use this command to query the result of negative pulse fitting 0 failed 1 success 2 no data Oxff unavailable L 1 2 F ETCh PMASK NE Gative AMP Litude Use this command to query the negative pulse amplitude in millivolts L 1 2 F ETCh PMASK NEGative RISE Use this command to query the rise time of the negative pulse in nanoseconds Dual DS1 0 SCPI Commands L 1 2 FETCh PM ASk NEGative FALL L 1 2 F ETCh PMASK NEGative FALL Use this command to query the fall time of the negative pulse in nanoseconds L 1 2 FETCh PMASK NE Gative WIDTh Use this command to query the width of the negative pulse in nanoseconds L 1 2 FETCh PMASK NE Gative OSH Use this command to query the overshoot percentage of
28. Seconds The number of seconds the NIU was unable to detect a signal from a previously connected piece of T1 equipment Coding The type of line coding detected on the receive T1 signal Errors The number of line code errors that have occurred Framing The type of framing detected on the receive T1 signal Errors The number of framing errors that have occurred Pattern The BERT pattern detected on the receive T1 signal Errors The number of pattern errors that have occurred 3 7 T1 Analysis View ing T1 Signal Test Results Signal Status Indicators continued Indicator Description CRC The number of CRC 6 errors detected ESF format only Signal Status Indicators The Signal Status section of the T1 Analysis screen shows the level and frequency of the receive T1 signal and the number of bit and frame slips that have occurred during the test period The slips measurements are based on comparing the timing relationship between the two DS1 receivers Signal Status er Z5Hz_ 1 544 MHz _ 75Hz er Note If you have connected the tester to only one T1 circuit you see the messages N A and No Signal displayed RX1 RX2 Level Shows the level of each receive RX1 and RX2 T1 signal in Volts The dynamic pointers below the display fields move to graphically show the level of the receive signals Color coding indicates whether the signal is acceptable green good yellow acce
29. W hen connecting test cables to a line do not touch the cable s metal contact points or allow the cable leads to touch each other Use only the supplied power cords and connect only to a properly grounded wall outlet Do not use extension cords that do not have a protective ground conductor Symbols The following are general definitions of safety symbols used on equipment and in manuals Dangerous voltage gt Protective ground Frame or chassis ground Alternating current INI Direct current Alternating or direct current Caution Read the manual gt iii About this Book About this Book Using the Dual DS1 0 Test Module Chapter 1 introduces the Dual DS1 0 Test module N1660A provides the installation procedure and a brief description of the test screens and the options available from the toolbar Saving Printing and Deleting Reports Chapter 2 explains how to save print and delete reports using the Reports option in the File menu T1 Analysis Chapter 3 describes how to use the T1 Analysis screen to view the current condition of both receive T1 signals RX1 and RX2 Testing T1 Circuits Chapter 4 provides step by step instructions for performing tests with the DS1 0 Test module T1 Testing Screen Reference Chapter 5 describes all the buttons configuration settings and tab screens that are part of the T1 Testing option Use this information in
30. a T1 Test Running aT1 Test This section describes how to run aT1 test on one or two lines When you run tests on two lines the tests run simultaneously This means when you press the Start button to run a test if you have configured both lines the tests begin and end at the same time 1 Tap the Start toolbar button to begin testing a T1 line The Service Advisor starts the test and begins to detect the status of the receive signal and updates the displayed screen Note If you have set up two tests the configured tests run simultaneously on both lines If you set a test duration notice the time display in the Start Stop button See Setting the Test Duration page 1 16 Sse Elapsed test time as Start File Help Amount of time left for test or continuous The elapsed test time counts forward while the test duration time counts backwards towards zero 2 Tap the Inject button if you want to inject a configured error or alarm into the BERT payload pattern The alarm or error is injected into the line selected on the left side of the screen 4 35 Testing T1 Circuits Runn 3 4 ingaT1 Test Tap the T1 Testing toolbar button Tap the PRMs tab if you want to transmit one or multiple Performance Report Messages PRMs during a test see Injecting PRMs page 4 37 Pea 00 00 ce E 3 a Auto Setup Start File RX1 TX1 Description CRC Error Event 1 CRC Events gt 1 but lt 5 CRC
31. a T1 Test page 4 3 Follow these steps to perform an Auto Setup 1 Make sure the Service Advisor is powered ON and connected to aT1 circuit see Connecting a Service Advisor toa T1 Circuit page 1 4 2 Tap the Auto Setup toolbar button 3 Tap either the Standard or the Detailed option ENS Auto Setup s Detailed e The Standard option scans the receive signal and looks for the QRSS Ones Zeros 1 1 1 7 3 24 63 511 2047 2 15 1 2 20 1 2 23 1 or Live BERT pattern and the frame and coding settings e The Detailed option scans the signal and looks for all BERT patterns and FT1 frame and coding settings Using the Dual DS1 0 Test M odule Using the Auto Setup Feature 4 While the Auto Setup feature is working you see the following message appear on the window Auto Setup is in progress please wait When the process is complete the message disappears 5 To exit from the Auto Setup mode while it is in progress tap the Stop toolbar button The Auto Setup process is aborted and all configuration changes are canceled 1 15 Using the Dual DS1 0 Test M odule Setting the Test Duration Before you begin a test you can select a specific test duration When a test duration is selected you tap the Start toolbar button and the test automatically halts when the elapsed test time matches the selected test duration Elapsed test time Peers a Start File Help Amount of time left f
32. a signal from the T1 tester usually because the T1 tester has been disconnected Default OFF 8 53 Dual DS1 0 SCPI Commands L 1 2 SOURce INJ ect RATE lt rate gt L 1 2 SOURCce IN ect RATE lt rate gt This command lets you configure the rate at which the configured errors are injected into the T1 line DT1 L 1 2 SOURce INJect RATE lt rate gt Parameters Rate Description SINGle Injects a single error into the BERT payload pattern BURST Injects a burst of errors See next command to configure the burst rate 1E 1 through 1E 7 Injects errors into the BERT payload pattern at the selected rate For example 1 E 3 is 1 x 10 or 1 bit error every 1 000 bits Default SINGle L 1 2 SOURce INJ ect BURSt lt rate gt This command lets you configure the burst error injection rate The following example indicates that you want to inject 30 CRC errors in each burst Example DT1 L1 SOUR IN DT1 L1 SOUR IN DT1 L1 SOUR IN DT1 L1 SOUR IN TYPE CRC RATE BURST BURS 30 STAT ON a a a aia Parameter Range 1 to 9 999 errors Default 25 errors 8 54 Dual DS1 0 SCPI Commands L 1 2 SOURce INJ ect STATe lt ON OFF gt L 1 2 SOU Rce INJ ect STATe lt ON OF F gt This command lets you turn ON and off the error and alarm injection state Default OFF Dual DS1 0 SCPI Commands L 1 2 SOURce INJ ect STATe lt ON OFF gt Transmitter Voi
33. a value between 35 and 3 dBm Example DT1 L1 SOUR TONE LEV 30 Parameter Range 35to 3 Default 0 L 1 2 SOURce SIGNal ABIT lt 0 1 gt This command lets you write the signaling A bit of the selected insert channel See L 1 2 ROUTe MUX I NSert lt hannd 0 1 24 gt page 8 11 Default 0 L 1 2 SOURce SIGNal BBIT lt 0 1 gt This command lets you write the signaling B bit of the selected insert channel See L 1 2 ROUTeMUX INSet lt hannd 0 1 24 gt page 8 11 Default 0 L 1 2 SOURce SIGNal CBIT lt 0 1 gt This command lets you write the signaling C bit of the selected insert channel See L 1 2 ROUTeMUX I NSert lt hannd 0 1 24 gt page 8 11 Default 0 Dual DS1 0 SCPI Commands L 1 2 SOURce SIGNal DBIT lt 0 1 gt L 1 2 SOURce SIGNal DBIT lt 0 1 gt This command lets you write the signaling D bit of the selected insert channel See L 1 2 ROUTe MUX I NSert lt hannd 0 1 24 gt page 8 11 Default 0 L 1 2 SOURce SIGNal STATe lt ON OFF gt This command enables or disables the signaling bit set with one of the SOUR SIGN nBIT commands Default OFF Dual DS1 0 SCPI Commands L 1 2 SOURce SIGNal STATe lt ON OFF gt Data Capture Commands This section describes the commands used to create and generate bit oriented code to a Facility Data Link FDL PRM Command Structure Root Level 1 Level 2 DT 1 L 1 2 SOURce BOC
34. applicable parameter 63 in the following example There is a space between the last level node and the parameter DT1_A L1 SOUR DATA PATT 63 Command set prefix Line identifier Root node Level 1 node Level 2 node Single space between nodes and parameter Parameter The test module uses this structure to interpret the SCPI command Generally each line identifier root and lower level node is preceded by a colon but the command set prefix is not This helps the instrument correctly parse the command s component parts 8 2 Dual DS1 0 SCPI Commands SCPI Command Syntax Command Set Prefix The Service Advisor Tablet or Undercradle with a Dual DS1 0 Test module installed uses the command set prefix DT1 to determine which plug in module to access to initiate a SCP command The sample SCPI commands assume that you have only one module installed in your Service Advisor If you have two Dual DS1 0 Test modules installed in a Service Advisor you must start each SCPI command with one of the following prefixes to indicate which module you want to communicate with Command Set Prefix Used When Two Modules are Installed Prefix Description DT1A Indicates that you want to send a SCPI command to the module in slot A DT1_B Indicates that you want to send a SCPI command to the module in slot B For example if you want to issue a command to the DS1 0 Test module
35. become a Stop button To stop sending a dial string tap the Stop toolbar button Using the Signaling Option 010 View ing a Call Monitor Log File Viewing a Call Monitor Log File This section explains how to use the log feature to view the dialing information the test set is inserting into a DSO channel You can also use this feature to monitor a single channel in both directions or to scan the T1 for DSOs going off hook 1 Tap the Call Monitor Logging button on the main Dial Monitor Test screen If the signaling mode is set to Emulate CO or Cl the following screen appears IN1660A Dual DS1 0 Tester Dial Monitor Test BE Last event number a FA Last event Seize description Seize Tip Gnd Tip Gnd 2 Ring Gnd Ring Gnd Close Loop 49 Connect eO 349 Disconnect 249 Abort Glare Loop Start Too Short Ring On Ring On Clear displayed items Bottom of list Next list item Previous list item Top of list 6 15 Using the Signaling Option 010 View ing a Call Monitor Log File If the signaling mode is set to Monitor the following screen appears 1N1660A Dual DS1 0 Tester Dial Monitor Test 16 22 29 16 22 30 Tip Gnd 16 22 30 Tip Gnd 16 22 30 Ring Gnd 16 22 30 Ring Gnd 16 22 30 Close Loop 16 22 30 Connect 16 22 30 Disconnect 16 22 30 Abort 16 22 30 Abort 16 22 30 Glare 16 22 30 Too Short 16 22 30 Ring On 16 22 30 Ring On 16 22 30 Rin
36. interchangeably with error rate although they are two different measurements ES Errored second A second in which at least one error occurred ESF Extended Superframe framing format DS1 FDL Facilities Data Link FDL LLB Line loopback sometimes called FDL loopback FDL PLB Payload loopback Only the payload data is looped back not the framing or FDL bits FDL SJ Smart ack line loop sometimes called network loopback frame A group of bits timeslots or bytes whose unique positions can be identified relative to an alignment signal or pointer Glossary 2 FT1 Fractional T1 A subrate signal on a DS1 comprising N number of DSO channels See also N x 64 HDLC High level Data Link Control hexadecimal A base 16 numbering system in which the digits range from 0 through F A hexadecimal value is noted with a subscript h for example 2A0F p Hz Hertz IBM International Business Machines Corporation idle signal A signal transmitted to indicate that a channel is not in use ISO International Standards Organization ITU International Telecommunications Union formerly the Consultative Committee on International Telegraph and Telephone CCITT The standards produced by this organization are called ITU T Recommendations jitter Short term variation in the phase of a digital signal includes phase variation above 10 Hz Kb Kilobit A thousand bits Kb s Kilo
37. looped up CSU test mode only RMT Looping indicates the Dual DS1 0 test module is attempting to loop up a remote device RMT Unlooping indicates the Dual DS1 0 test module is attempting to loop down a remote device RMT Looped indicates the Dual DS1 0 test module has successfully looped up a remote device RMT Not Looped indicates the Dual DS1 0 test module has not looped up a remote device 4 24 Testing T1 Circuits Configuring a Loop Code Selecting a Loop code Setting Follow these procedures to select a loop code setting used to activate and deactivate loopback at the far end equipment 1 Tap the Code button on the T1 Testing screen Loop code status Loop Selected loop code Loop UP Down 2 Tap a code button on the displayed Select Loop Code screen You ll see the loop code you selected in the Code button s display area L1 Select Loop Code See Default Loop up and Loop down Setti ngs page 5 26 for a definition of the loop codes Note When you are doing out of band testing make sure the Framing setting is configured as ESF see Framing Format page 5 7 for a listing of the different framing settings 3 Tap the Frame Bit Overwrite button if you want to overwrite the framing bits with the selected loop code Continue to the next procedure for information about creating a user programmable loop code 4 25 Testing T1 Circuits Configuring a Loop Code Creating a User Programmabl
38. mode 0 Lt OOD oOo OOO 0000 0 000 Channel OOD D0 00 0000 000 000 Trunk type Mutes audio to Service Advisor Volume control for Service Advisor s speaker Dial function buttons 1 11 Using the Dual DS1 0 Test M odule Pulse Mask Screen Pulse Mask Screen Tap the Test toolbar button and select the Pulse Mask test option The Pulse Mask testing feature allows you to evaluate the shape of a received DS1 pulse and compare it to one of a set of standardized masks This option is available only when you purchase the Pulse Mask Option 020 See Using the Pulse Mask Screen page 7 2 for more information about configuring and running a Pulse Mask test Pulse M ask configuration parameters IN1660A Dual DS1 0 Tester Pulse Mask R RX r gt RK2 1X Eaj Gg 2 T1 Analysis T1 Testing L l Fi Help Pulse Mask L1 T1 403 0 Resulting pulse mask Status Pass Pass waveform Amplitude my 2982 2975 Rise Time ns 74 70 Fall Time ns Width ns Overshoot Undershoot 10 7 11 0 Normalized Amplitude 0 0 Imbalance Ratio 0 4 e a Time Unit Intervals ooo O o o Astar _N16104 Service Adv N1660 Dual 051 0 R8 1 37 em Pulse mask measurements Using the Dual DS1 0 Test M odule View ing the Event Log Viewing the Event Log This section descri
39. of an octet To ensure that frame bits fall only on octet boundaries run a T1 BER test with the 1 7 pattern Use Frac T1 or Drop Insert test mode to select the DDS channel and be sure to observe proper precautions on live T1 circuits Note When running DDS long patterns such as DDS5 at low speed subrates for example 2 4 or 4 8 Kb s it takes a while for the test set to sync on the pattern DDS5 A combination of DDS stress patterns 1 through 4 This pattern which runs safely on all DS1 facilities simulates the transition from IDLE to DATA mode on DDS circuits It can be used as a work around for the DS1 two minute limit on an all ones pattern It is useful for detecting marginal equipment in multipoint applications and stressing power supplies and ABLO circuits The pattern is 800 bytes DDS1 100 bytes FF and 100 bytes 00 four times e 800 bytes DDS2 100 bytes 7E and 100 bytes 00 four times e 200 bytes DDS3 repeating 32 pattern e 200 bytes DDS4 repeating 40 pattern Note DDS5 contains 100 bytes of hex 00 1 000 binary zeros in a row Using this pattern on a T1 or DSO circuit running over AMI line coded facilities will cause a traffic affecting failure of that facility 8 32 Dual DS1 0 SCPI Commands L 1 2 SOURce DATA INVert lt ON OFF gt DT1 L 1 2 SOURce DATA PATTern lt BERT pattern gt Parameters continued Pattern Description DDS6 DSO 6 A repeating pattern of
40. on the DDS channel Off turns off the DDS function Notice the FracT1 button s display panel in the Transmitter Setup scetion of the screen shows the DDS setting 7 Tap the Rate button and select the desired DDS channel transmission rate in Kb s If the format is DSOA you see the follwoing rates L1 Select DDS Rate 9600 If the format is DSOB you see the following rates L1 Select DDS Rate 19200 4 12 Testing T1 Circuits Configuring BERT Settings 8 Tap the Channel button and select the T1 timeslot 1 through 24 carrying the DDS channel Use the Up and Down arrow buttons to display a channel and tap OK to select it and return to the previous screen Select a Channel 1 24 Tap the Cancel button to cancel out of the channel option and return to the previous screen 9 Tap the User button active only with DSOB format and select the signal of an individual user 1 through 20 depending on the selected Rate on the DDS channel Use the Up and Down arrow buttons to display a user and tap OK to select it and return to the previous screen Select a DDS User 1 20 Tap the Cancel button to cancel out of the user option and return to the previous screen Continue to Running a T1 Test on page 4 35 to start your test 4 13 Testing T1 Circuits Configuring BERT Sequences Configuring BERT Sequences After selecting or creating user programmable BERT patterns you can configure
41. ory SEQUence PAT1 4 lt BERT sequence gt ME Mory SE QUence PAT 1 4 lt BERT Sequence gt Use this command to create up to four different BERT sequences Within each sequence you can have up to 24 data patterns for a Multiple Test Pattern MTP See L 1 2 SOURce DATA PATTern BERT data pattern gt page 8 29 for a listing of BERT patterns A backslash in front of the pattern indicates that you want to use the invert function see previous command description Separate each pattern in the list with a comma Example MEM SEQU PAT1 QRSS 1N8 3N 24 MEM SEQU PAT2 ALT 511 ONES NET55 Default not applicable L 1 2 SOURce SE QUence PATTern lt pattern opti on gt Use this command to specify the BERT sequence you want to run DT1 L 1 2 SOURce SEQUence PATTern lt option gt Parameters Option Description 1 through 4 BERT sequence defined with the MEM SEQU PAT1 4 command see page 8 35 BTP Indicates that you want to run a Bridge Tap pattern See BERT Pattern Sequences Controls page 5 19 for more information MTP Indicates that you want to run a Multiple Test pattern See BERT Pattern Sequences Controls page 5 19 for more information Default BTP 8 35 Dual DS1 0 SCPI Commands L 1 2 SOURce SEQUence PATTern DURation lt seconds gt L 1 2 SOURce SE QUence PATT ern DURation lt seconds gt Use this command to specify the amount of time between patterns while you ar
42. see Viewing and Printing Saved Reports page 2 11 1 2 Tap the File toolbar button and select the Reports option Tap the Create button on the N1660A Reports screen N1660A Reports Header Information A Report screen appears with the configuration and test results Note that the title of the Report screen indicates which test is currently running or was previously stopped For example if you are running a T1 Analysis test or just stopped it the following report screen appears when you press the Create button T1 Analysis Report N1660A SUMMARY REPORT T1l ANALYSIS 1 Module Slot amp Date 20MarZ000 Time 14 40 31 Elapsed Test Time 00 00 00 Test Status STOPPED File Name TEST INFORMAT ION stomer Name 2 2 Saving Printing and Deleting Reports Printing a Report 3 Tap the scroll buttons the view the report data Then tap the Print button to print the report If you want to enter report header information such as a customer name and operator ID see Entering Test Header Information page 2 4 The report header information appears in the Test Information section of the report If you are remotely controlling your tester from a PC you See the typical Windows print screen appear when you tap the Print button Select the desired printer and tap the Windows Print button to print the report Make sure you have a printer connected to the platform you are using See Vi ew
43. sequence and contains some sample tests you can enter to become familiar with programming tests Resetting Your Test Set Before you program a DS1 0 test you should always enter the DT1 RST command to reset the test module When you issue this command the DS1 0 test module e sets all DS1 0 test results and configuration values to their defined default setting Default settings are listed in the individual command descriptions e clears the SCPI control registers in the test module e stops aDS1 0 test if one is currently running When you become familiar with the SCPI default settings you will notice that in many cases you can enter just a few commands to run a test or make a measurement Command Sequence When programming a DS1 0 test with SCPI commands you always e reset the test module to default settings e select a test e configure the receiver and transmitter functions e initiate the test e retrieve test results abort the test 8 7 Dual DS1 0 SCPI Commands SCPI Return Codes SCPI Return Codes To determine if the command you just entered used the proper format or if an error occurred while processing the command type DT1 L 1 2 SYSTem ERRor Refer to the following table to see if the command executed successfully or if an error occurred SCPI Return Codes Code Meaning 0 Command executed successfully 100 Command error 109 Required parameter missing 1
44. seven bytes of 0111 1111 7Fh followed by a single byte of 1111 1111 FFh This pattern which runs safely on all DS1 facilities simulates the transition from IDLE to DATA mode on DDS circuits It can be used as a work around for the DS1 two minute limit on an all ones pattern It is useful for detecting marginal equipment in multipoint applications and for stressing power supplies and ALBO circuits BITPROG1 4 Sets the BERT pattern to the value configured in the SOUR BITP PROG1 4 commands see page 8 27 BYTEPROG1 4 Sets the BERT pattern to the value configured in the SOUR BYTEP PROG1 4 commands see page 8 28 Default QRSS L 1 2 SOURce DATA INVert lt ON OFF gt Use this command to invert the transmit BER test pattern you entered with the DT 1 L 1 2 SOURce DATA PATT command see page 8 29 Default OFF 8 33 Dual DS1 0 SCPI Commands L 1 2 SOURce DATA INVert lt ON OFF gt BERT Sequences Configuration Commands This section describes the commands used to configure the sequence of BERT patterns you want to use during a test BERT Sequences Command Structure Root Level 1 Level 2 Level 3 MEMory SEQUence PAT1 4 lt BERT sequence gt DT 1 L 1 2 SOURce SEQUence PATTern lt pattern option gt PATTern DURation lt seconds gt MODE lt ONCE CONTinuous gt CTRL lt HOLD RESume ADVance gt 8 34 Dual DS1 0 SCPI Commands MEM
45. signal is bridged to one side of the span The Service Advisor is set to a high impedance state greater than 1000 ohms This selection is typically used to monitor in service spans that do not have a DSX monitor jack Select a test duration if desired See Setting the Test Duration page 1 16 3 3 T1 Analysis The T1 Analysis Screen 4 Tap the Start toolbar button to begin monitoring the T1 circuit The Service Advisor monitors the receive signal s and updates the results screen display Note Monitoring begins on both lines at the same time If you set a test duration notice the time display in the Start Stop button See Setting the Test Duration page 1 16 aes Elapsed test time as 2 Start File Help Amount of time left for test or continuous The elapsed test time counts forward while the test duration time counts backwards towards zero 5 If you selected the conti nuous test duration tap the Stop toolbar button to stop the test Monitoring stops on both lines at the same time Notice the elapsed time display on the Start Stop button This indicates the length of time you ran the test 3 4 T1 Analysis View ing T1 Signal Test Results Viewing T1 Signal Test Results T1 signal test results are shown in the RX1 RX2 and Signal Status sections of the T1 Analysis screen While the test is running you can monitor the level and frequency of each receive T1 signal by looking at all the signa
46. the DDS control function Default OFF L 1 2 SOURce DDS RATE lt transmi ssion rate gt Use this command to select the DDS channel transmission rate in Kb s Parameter Values 2400 4800 9600 19200 28800 38400 56000 64000 Default 2400 Dual DS1 0 SCPI Commands L 1 2 SOURce DDS CHANnel lt 1 24 gt L 1 2 SOURce DDS CHANnel lt 1 24 gt Use this command to select the T1 timeslot carrying the DDS channel Parameter Values 1 through 24 Default 1 L 1 2 SOURce DDS USER lt 1 20 gt Use this command to select the signal of an individual user on the DDS channel This command is valid only when the format is set to DSOB see L 1 2 SOURceDDS FORMat lt OFF DSOA DSOB gt page 8 44 The value you use with this command depends on the transmission rate you set see L 1 2 SOURceDDS RATE lt transmission rate gt page 8 44 Use the following table to determine the maximum number of channels available for each rate Maximum Number of Channels for Each Transmission Rate Transmission Rate Maximum Number of User Channels 2400 20 4800 10 9600 5 19200 2 28800 0 34400 0 56000 0 64000 0 Default 1 8 45 Dual DS1 0 SCPI Commands L 1 2 SENSe DDS CTRLc ode INDEX lt value gt L 1 2 SENSe DDS CTRLcode INDEX lt value gt Use this command to read a single DDS control code See L 1 2 FETCh DDS CTRLcodeCOUNt page 8 92 for mor
47. the negative pulse L 1 2 F ETCh PMASK NE Gative USH Use this command to query the undershoot percentage of the negative pulse Dual DS1 0 SCPI Commands Querying Digital Data Service DDS Information Querying Digital Data Service DDS Information This section lists the commands used to query DDS information L 1 2 FETCh DDS FSYNC This command indicates whether tester has synchronized to the framing format on the DDS channel 1 frame sync condition 0 not synchronized L 1 2 FETCh DDS CTRLcode COUNt This command queries the total DDS contro code count Dual DS1 0 SCPI Commands L 1 2 FETCh DDS CTRLcode INFO L 1 2 F ETCh DDS CTRLcode INFO Use this command in conjunction with the L 1 2 SENSe DDS CTRLcode INDEX command see page 8 46 to display DDS control code information The format of the return ASCI string is Rcv_code Chan_data Count Duration Rcv_code The name of the control code Chan_data The control code Count The number of time this control code has been detected Duration The number of seconds this control code has been present on the channel Dual DS1 0 SCPI Commands 8 94 DS1 0 Features 9 2 Tl and Fractional T1 Transmitter Specifications 9 4 T1 Receiver Specifications 9 7 Tl Measurements 9 8 Signaling Option 010 Characteristics 9 9 Pulse Mask Option 020 Characteristics 9 10 Ordering Accessories 9 10 Specif
48. the rate at which it is injected into the T1 line DT1 L 1 2 SOURce Command Structure Root Level 1 Level 2 DT1 L 1 2 SOURce INJect TYPE lt type gt RATE lt rate gt BURSt lt rate gt STATe lt ON OFF gt Dual DS1 0 SCPI Commands L 1 2 SOURce INJ ect TYPE lt type gt L 1 2 SOURCce INJ ect TYPE lt type gt This command lets you configure the type of error you want to inject into aT1 line DT1 L 1 2 SOURce INJect TYPE lt type gt Parameters Type Description OFF No alarm or errors injected LOGIC Injects logic errors into the BERT payload pattern BPV Injects bipolar violations into the BERT payload pattern A BPV is a pulse that breaks the alternating polarity rule FBE Injects framing bit errors into the BERT payload pattern Note that this error is inserted only into those F bits that are used for framing CRC Injects CRC cyclic redundancy checksum errors into the BERT payload pattern AIS Injects an Alarm Indication Signal an unframed all ones pattern in the T1 transmit signal YELlow Injects a Yellow alarm in the T1 transmit signal For D4 SF the alarm is transmitted in bit 2 of the DSO for ESF the alarm is an alternating OOFF pattern transmitted in the facility datalink FDL CDI Injects a Customer Disconnect Indicator alarm to indicate that the NIU network interface unit at the customer s site is not receiving
49. to repair or replace any product to a condition as warranted you will be entitled to a refund of the purchase price upon prompt return of the product Agilent products may contain remanufactured parts equivalent to new in performance or may have been subject to incidental use Warranty does not apply to defects resulting from a improper or inadequate maintenance or calibration b software interfacing parts or supplies not supplied by Agilent c unauthorized modification or misuse d operation outside of the published environmental specifications for the product or e improper site preparation or maintenance Agilent warrants that the Agilent Product described above will be able to accurately process date data including but not limited to calculating comparing and sequencing from into and between the twentieth and twenty first centuries and the years 1999 and 2000 including leap year calculations when used in accordance with the Product documentation provided by Agilent including any instructions for installing patches or upgrades provided that all other products e g hardware software firmware used in combination with such Agilent Product s properly Warranty amp Services 1 exchange date data with it If the Specifications require that specific Agilent Products must perform as a system in accordance with the foregoing warranty then that warranty will apply to those Agilent Products as a system and Custom
50. until you return to the main Dual DS1 0 Tester screen 2 15 Saving Printing and Deleting Reports Dual DS1 0 Sample Reports Dual DS1 0 Sample Reports This section shows you some sample reports that you can print from the Reports option on the File menu To create a report you should start a test and then select the Reports option from the File menu see Printinga Report page 2 2 You can print the following reports T1 Analysis Report T1 Testing Report BERT Sequences Report Dial Monitor Report Pulse Mask Report Event Log Data Report 2 16 Saving Printing and Deleting Reports Dual DS1 0 Sample Reports Sample T1 Analysis Report The T1 Analysis Report contains information about the current condition of the receive T1 signals RX1 and RX2 N1660A SUMMARY REPORT T1 ANALYSIS Module Slot A Date 30Mar2000 Time 13 59 33 Elapsed Test Time 00 00 00 Test Status RUNNING File Name TEST INFORMATION Customer Name ABC COMPANY Circuit Id 5551212 Operator Id MATT Comments LINE TESTED SIGNAL SUMMARY RX1 RX2 Line Coding AMI AMI Line Framing ESF ESF RX Termination Terminated Terminated Frequency Hz N A N A Level Pk Pk Volts N A N A SLIPS ANALYSIS RX1 RX2 N A Bi
51. use for the Three Tone Slope test Parameter Range 35 to 3 measurement in dBm Default 0 indicates you don t want to run a three tone slope test L 1 2 SOURce TONE DURation lt time gt Use this command to set the amount of time you want each tone sent over the line for the Three Tone Slope test Parameter Range 1 to 9999 measurement in seconds Default 0 indicates you want to send each tone continuously Dual DS1 0 SCPI Commands L 1 2 SOURce TON E DURation lt time gt DDS Control Commands This section describes the commands used to runa DDS BER test DDS Control Command Structure Root Level 1 Level 2 Level 3 DT1 L 1 2 SOURce DDS FORMat lt OFF DSOA DSOB gt RATE lt transmission rate gt CHANnel lt 1 24 gt USER lt 1 20 gt DT 1 L 1 2 SENSe DDS CTRLcode INDEX lt value gt 8 43 Dual DS1 0 SCPI Commands L 1 2 SOURce DDS FORM at lt OFF DSOA DSOB gt L 1 2 SOURce DDS FORMat lt OFF DSOA DSOB gt Use this command to specify either the DSOA or DSOB format of the DSO signal on the DDS channel DT1 L 1 2 SOURce DDS FORMat lt options gt Parameters Options Description DSOA Indicates the access point for performing test and monitoring capabilities are from the module DSOB Indicates the access point for performing test and monitoring capabilities are from a DSO B cross connect OFF Turns off
52. user defined BER test pattern sequences see Runni ng a Customi zed BERT Sequence page 4 20 During a BER test this area displays the current status of each pattern in the sequence EA N1660A Dual DS1 0 Tester BERT Sequences Bridge Tap est est Data Auto Setup Ronen Es ROTTER Pattern rors Pattern The name of the current pattern Status The pattern s current or most recent status Pattern Errors The number of bit errors detected during this pattern 5 19 T1 Testing Screen Reference BERT Pattern Sequences Controls BPV Errors The number of BPVs detected during this pattern Frame Errors The number of frame errors detected during this pattern CRC Errors The number of CRC cyclic redundancy checksum errors detected during this pattern Pattern Definition The pattern definition area contains controls for selecting and defining BERT pattern sequences Praca Insert Add Delete Advance notner Pattern Pattern Pattern Pattern Sequence g Select Another Sequence Lets you select BTP MTP or create one to four user defined BERT pattern sequences See Configuring BERT Sequences page 4 14 Add Pattern Lets you add a pattern to the sequence Insert Pattern Lets you select a pattern to insert into the sequence Inserts the selected pattern above the entry where the cursor is positioned Delete Pattern Deletes the selected test pattern sequence Hold Pattern Pauses the t
53. want to observe specific problems Advance Pattern button skips to a particular pattern in the sequence Up and Down arrow buttons let you move through the list of BERT patterns Pattern button injects logic errors into the BERT payload pattern BPV button injects bipolar violations into the BERT payload pattern A BPV is a pulse that breaks the alternating polarity rule Frame button injects framing bit errors into the BERT payload pattern Note that this error is inserted only into those F bits that are used for framing CRC button injects CRC cyclic redundancy checksum errors into the BERT payload pattern Loop Up button transmits the selected type of loop up codes to activate loopback Loop Down button transmits the selected type of loop down codes to deactivate loopback Tap the Stop toolbar button to stop a test 4 23 Testing T1 Circuits Configuring a Loop Code Configuring a Loop Code This section explains how to use the Code button on the T1 Testing screen to set the loop back code In loopback mode the transmit signal is reversed back as the receive signal typically by a remote far end network element Loop code state Li You ll notice that the loop code state of the Dual DS1 0 test module is displayed in the section title The loop state can be CSU Not Looped indicates that an external device is not looped up CSU test mode only CSU Looped indicates that an external device is
54. when the ones density falls below 12 5 AIS Signal Turns red to indicate the presence of an alarm indication signal unframed all ones on the receive signal 5 5 T1 Testing Screen Reference Line Configuration and Status T1 Indicators continued Indicator Description Yellow Alarm Turns red to indicate the presence of a Yellow alarm condition on the receive signal bit 2 of each DSO set to 0 for at least 255 consecutive channels for SF alternating OOFF in the FDL for ESF CDI Alarm Customer Disconnect Indicator turns red to indicate that the NIU network interface unit at the customer s site is not receiving a signal from a previously connected piece of T1 equipment Speaker Control Buttons The Speaker Control section of the T1 Testing screen lets you adjust the volume the audio speaker on the Service Advisor mel JE Mute mutes the sound on the Service Advisor Tap this button to mute transmitting tones decrease the volume of the audio speaker increase the volume of the audio speaker Note You cannot control the volume of the audio sent or received to or from a handset connected to the test module 5 6 T1 Testing Screen Reference Transmitter Setup Controls Transmitter Setup Controls The follow sections describe the configuration settings that appear when you tap a Transmitter Setup control button AMI NONE None J 960 Kb RC 1 ODB Coding Framing Pattern
55. 00001 10000000 10000000 10000000 10000000 10000000 10101010 10000000 11111111 11111111 00000001 10000000 This is also known as the Daly pattern 10000000 10000000 11000000 11100000 10101010 10101010 11000000 11111111 00000001 10000000 00000001 10000000 10000000 10000000 10000000 10101010 10101010 10000000 11111111 10000000 00000001 10000000 Oct 72 A 72 octet pattern whose byte values hex are as follows 80808080 01000101 01038001 80010180 01220020 220020AA AAAAAAAA 55555555 AAAAAAAA 55AAAA55 55558080 FFFFFFFF FFFFFFFE FFFF2449 92888888 10420821 84200882 40201080 Oct 96 A 96 octet pattern whose byte values hex are as follows FFFFFFFF FFFFFFFF FFFFFFFF 80018001 80018001 FFFFFFFF FFFFFFFF FFEFFFFFFF 80018001 80018001 FFFFFFFF FFFFFFFF FFFFFFFFE FFFFFFFF FFFFFFFF FFFFFFFFE AAAAAAAA 80018001 80018001 80018001 AAAAAAAA 80018001 80018001 80018001 Oct 120 A 120 octet pattern The byte values hex are as follows FFFFFFFF FFFFFFFF EFEFFFEFF FFFFFFFF 10101010 10101010 FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF 10101010 10101010 FFFFFFFF FRFFFFFF FFFFFFFF EFEEFEFF 10101010 10101010 FFFFFFFF FFFFFFFF FFFFFFFF AAAAAAAA 10101010 10101010 FFFFFFFF FFFFFFFF FFFFFFFF 10101010 AAAAAAAA 10101010 T1 Testing Screen Reference Octet Settings Octet BERT Patterns continued Pattern Description Daly 55 The 55 octet pattern from
56. 1 2 SOURce PRM TYPE lt 32 bit map gt CTRL lt OFF ONCE CONTinuous gt Dual DS1 0 SCPI Commands L 1 2 SOURce PRM TYPE lt 32 bit maps gt L 1 2 SOURce PRM TYPE lt 32 bit maps gt Use this command to indicate the PRMs you want to transmit during a test See Injecting PRMs page 4 37 for more information about injecting PRMs DT1 L 1 2 SOURce PRM TYPE lt 32 bit maps gt Parameters Bits Description Oto 15 Number of CRCs to transmit 16 SL Slip event message 17 SE Severely errored framing event 18 FE Frame synchronization bit error 19 LB Payload loopback 20 LV Line coding violation BPV 21 to 31 not used Example DT 1 L1 SOUR PRM TYPE 0x0302 This command indicates that you want to transmit two CRCs an SL and an SE message Default 0 8 39 Dual DS1 0 SCPI Commands L 1 2 SOURce PRM CTRL lt OFF ONCE CONTinuous gt L 1 2 SOURce PRM CTRL lt OFF ONCE CONTinuous gt Use this command to show often you want the tester to transmit PRMs during a test DT1 L 1 2 SOURce PRM CTRL lt options gt Parameters Options Description OFF Indicates that you do not want to generate a PRM during a test ONCE Indicates that you want to send the selected PRM once during a test The PRM transmitted is determined by the DT1 L 1 2JSOUR PRM TYPE command see page 8 40 CONTinuous Indicates that you want to send the select
57. 12 Command keyword too long 120 Parameter value out of range 221 Invalid mode setting for command 223 Command line longer than 80 characters 350 Error lost due to overflow in error queue 8 8 Dual DS1 0 SCPI Commands SOURce TEST STATe lt ON OFF gt Basic Test Commands This section describes the SCPI commands you use with most tests See Command Sequence page 8 7 for more information about the sequencing of the DT1 SCPI commands Basic TIMS Test Commands Root Level 1 Level 2 DT1 SOURce TEST STATe lt ON OFF gt DT1 INITiate DT1 ABORt SOURce TEST STATe lt ON OF F gt This command starts and stops a test Default OFF INITiate This command starts the selected test resets results counters on the test module to zero and enables results processing ABORt This command stops the current test and retains the current processed results 8 9 Dual DS1 0 SCPI Commands ABORt Signal Routing Commands This section describes the ROUTe commands which are used to indicate which channels you want to use for drop and insert mode and BER testing DT1 L 1 2 ROUTe Command Structure Root Level 1 Level 2 DT1 L 1 2 ROUTe DMUX DROP lt channel 1 24 gt MUX INSert lt channel 1 24 gt SELect FT1 lt channel mask gt 8 10 Dual DS1 0 SCPI Commands L 1 2 ROUTe DM UX DROP lt channel 0 1 24 gt L 1 2 ROUTe DMUX DRO
58. 193 time slots bits is detected between the receive and reference signals usually a network device Multiple frame slips within 0 25 seconds are counted as a single frame slip If only one T1 signal is detected you see N A in this field 3 9 T1 Analysis 3 10 TheTlTestingScreen 4 2 SettingUpaTlTest 4 3 Configuring BERT Settings 4 5 Entering a New BERT Pattern 4 7 Configuring a Fractional T1 FT1 Test 4 9 Configuring a Digital Data Service DDS BER Test 4 11 Configuring BERT Sequences 4 14 Running Bridge Tap Pattern BTP and Multiple Test Pattern MTP Tests 4 15 Running a Customized BERT Sequence 4 20 Configuring a Loop Code 4 24 Setting the Voice Frequency Audio Controls 4 28 Setting the Transmit Signaling Bits 4 33 RunningaTlTest 4 35 InjectingPRMs 4 37 Viewing Test Results 4 39 Saving Configuration Settings 4 44 Testing T1 Circuits Testing T1 Circuits The T1 Testing Screen The T1 Testing Screen This chapter explains how to run tests on one or two T1 lines Test results and measurements tabs N1660A Dual DS1 0 Tester T1 Testing Test mode Line you re configuring Termination mode Signal indicators ene B8ZS ESF QRSS 1536 Kb INT 0 dB Coding Framing Pattern FracT1 Clocking Build Out Pattern ingle None Loop Loop Type Rate Code Up Down Transmitter setup controls Error alarm setup controls Loop code setup controls Tes
59. 2 Idle channel All ones or user bit programmable byte TX Clock sources RX1 recovered clock RX2 recovered clock Internal clock source TX clock 1 544 Mb sec 10 ppm Transmits Two fully independent BERT patterns Alarms LOS AIS Yellow Customer Disconnect Indicator no LAPD processing Fractional T1 testing rates N x56 N x64 1 lt n 24 contiguous or non contiguous Error Injection Frame single 2 to 6 consecutive frames and a burst of 25 BPV and Pattern single 1E 1 to 1E 7 and a burst of 1 to 9 999 CRC single 1E 4 to 1E 7 which is equivalent to an error rate of 2 17E 3 and a burst of 1 to 9 999 Bit 1E 1 to 1E 7 and a burst of 1 to 9 999 Loop codes Standard CSU NIU NIU4 NIU6 V 54 OCU DP FDL Line FDL Payload F DL Network DDS V 54 OCU DP OCUALT DSUALT CSUDP CSUALT DSODP User programmable LCI1 to LCI4 in band codes LCO1 to LCO4 out of band codes Frame Bit Overwrite ON off CODEC uLAW Specifications T1 and Fractional T1 Transmitter Specifications Tone generation 404 1000 1004 2804 Hz or user programmable tone in the range of 200 Hz to 3950 Hzin 1 Hz steps with adjusted level from 3 dBm to 35 dBm in 1 dBm steps 3 Tone Slope 404 1004 2804 Hz with level adjustable from 3 dBm to 35 dBm in 1dB steps and duration adjustable 1 to 9 999 seconds in 1 second steps Audio input from handset can be encoded onto a single user selectable DSO timeslot instead of a tone Signa
60. 2 Comments LINE TESTED EVENT LOG Index Date 1 9 8 1999 2 9 8 1999 3 9 8 1999 4 9 8 1999 5 9 8 1999 6 9 8 1999 yi 9 8 1999 8 9 8 1999 9 9 8 1999 9 9 8 1999 HO OH H 3 oO ES S E N NS S S S E NA 200 00 201 202 203 204 205 206 207 207 Event RX1 RX2 RX1 RX1 RX2 RX2 RX2 RX2 RKL RXI END REPORT N1660A SW REV 1 30 Total 10 4 BPV Errors PRM Set Line Termination Set BPV Errors Injected AIS Injected Test State Changed Pattern Sync Acquired 6 Framing Errors CDI Detected CDI Detected HW REV 1 0 SN 1234 2 23 Saving Printing and Deleting Reports TheT1lAnalysis Screen 3 2 Viewing T1 Signal Test Results 3 5 T1 Analysis 3 1 T1 Analysis The T1 Analysis Screen The T1 Analysis Screen This section describes how to use the T1 Analysis screen This screen shows the current condition of both receive T1 signals RX1 and RX2 The RX1 and RX2 indicators on the T1 Analysis toolbar button indicate the summary status of both T1 lines e Green indicates the module detects a valid T1 signal on the line and no errors or alarms have been detected e Red indicates an error or alarm is occurring now Yellow indicates an error or alarm has previously occurred Start Stop test button shows elapsed time and amount of time left Indicates stat
61. 2 you want to mute or drop audio into In the Drop Channd Audio section select a channel to drop to the Service Advisor s speaker Tap the A and W buttons to increase or decrease the displayed channel by one e Tap the button to select a channel number or None using the following popup screen Use the A and W buttons or press the None button Tap OK to return to the previous screen Select a Channel 1 24 4 29 Testing T1 Circuits Setting the Voice Frequency Audio Controls Tap the Speaker Control or button to decrease or increase the volume of the audio speaker on the Service Advisor or press the Mute button to mute the sound on the Service Advisor Notes You cannot control the volume of the audio sent or received to or from a handset connected to the test module When you select tones and tap the Start toolbar button to begin transmitting them you cannot turn off the tones Tap the Mute button in the Speaker Control section of the screen to mute the tones In the Insert Channd Audio section select the channel 1 through 24 into which you want to insert a tone Tap the A and W buttons to increase or decrease the displayed channel by one e Tap the button to select a channel number or None using the following popup screen Use the A and buttons or press the None button Tap OK to return to the previous screen Select a Channel 1 24 ae Note To use the insert feature on live traff
62. 38 for a description of results displayed on this tab or page 4 33 for information about setting TX signaling bits Test Detailed summary resus S0 ve ote Prats oos 000000 000000 000000 000000 000000 000000 000000 000000 Modify Tx Signaling 000000 000000 000000 000000 000000 000000 000000 000000 6 Tap the PRMs tab to look at the counts for performance report messages Test Detailed AB CD Summary Results Bits Message Description CRC Error Event 1 a CRC Events gt 1 but lt 5 CRC Events gt 5 but lt 10 CRC Events gt 10 but lt 100 Toggle Send State Send Checked baa CRC Events gt 100 but lt 319 CRC Events gt 320 Severely Errored Framing Event gt 1 Frame Synchronization Error Event gt 1 Line Code Violation Event gt 1 Slip Event gt 1 Payload Loopback Activated eooooococecse 4 42 Testing T1 Circuits View ing Test Results 7 Tap the DDS tab to look atthe RX DDS control codes on the selected DS1 channel Test Detailed AB CD Summary Results Bits Code Description Data Count Duration MJU Alert 00000000 6 Loopback Enable 00000000 2 Control Mode Idle 00000000 0 0 1 Far End Voice 00000000 DSU Loopback 00000000 Channel Loopback 10100111 5 J DS0A J 19200 1 1 Format Rate Channel User 4 43 Testing T1 Circuits Saving Configuration Settings When you shut down your tester all your conf
63. 4 VF signaling commands 8 56 screens See also function tabs windows BERT Pattern Setup 4 5 BERT Sequences 1 10 4 14 Call Monitor Log 6 15 Dial Monitor 1 11 6 3 entering dial string 6 5 Event Log Data 1 13 Modify Signaling Bits 4 34 Pulse Mask 1 12 7 2 Select Trunk Type s 6 8 Stored Numbers 6 13 T1 Analysis 1 8 3 2 3 9 T1 Testing 4 2 5 41 signal indicators 5 5 signaling bits modify 4 34 5 38 transmit 4 33 signaling option activating 6 2 configuring with SCPI 8 63 fetch commands 8 68 using 6 2 signal loss 3 6 signal mode selecting with tester 6 6 signal status 3 8 bit slips 3 9 frame slips 3 9 RX1 RX2 difference 3 9 RX1 RX2 frequency 3 9 RX1 RX2 level 3 8 signal tab 4 39 4 41 5 34 SLC 96 frame format 5 7 8 22 SN1 to SN9 buttons 6 13 speaker control 4 30 buttons 5 6 6 11 specifications Dual DS1 0 Test module 9 1 Start Stop button 1 6 stored dial string 6 11 T T1 Analysis button 1 5 1 8 3 3 screen 1 8 3 2 3 9 T1 Signal viewing test results 3 5 T1test results 4 39 running 4 35 setting up 4 3 T1 Testing button 1 5 4 3 Index 6 T1 Testing screen 4 2 5 41 AB CD bits tab 4 39 BERT pattern 5 9 framing format 5 7 line code 5 7 loop codes 5 26 PRMs tab 4 39 results tab 4 39 signal indicators 5 5 Signal tab 5 34 signal tab 4 39 test summary tab 4 39 VF tab 4 29 4 39 Voice Frequency VF tab 5 36 tabs See also function tabs terminated input mode 3 3
64. 5 Default not applicable Dual DS1 0 SCPI Commands L 1 2 SENSe SIGNal SCAN TYPE lt mode gt L 1 2 SENSe SIGNal SCAN TYPE lt mode gt This command lets you set a timeout mode for the call monitoring log feature Modes OFF NOSCAN UNTIL_HANGUP UNTIL_INTERDIGIT Default OFF L 1 2 SENSe SIGNal SCAN TIME out lt value gt This command lets you set a timeout value in seconds for the UNTIL_INTERDIGIT scan mode set with the previous command Example DT1 L1 SENS SIGN SCAN TYPE UNTIL_INTERDIGIT DT1 L1 SENS SIGN SCAN TIME 60 Default 0 Dual DS1 0 SCPI Commands Signaling Fetch Commands Signaling Fetch Commands The following table lists the FETCh commands used to retrieve information about the Signaling Option 010 settings When you enter any of the commands listed below make sure to begin with the following DT1 L 1 2 FETCh Signaling Fetch Commands Command Description SIGNal ABIT Reads the A bit of the received signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 SIGNal BBIT Reads the B bit of the received signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 SIGNal CBIT Reads the C bit of the received signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 SIGNal DBIT Reads the D bit of the received sign
65. 50ct1999 13 31 testmar 30Mar2000 09 53 4 Use the Up and Down arrow buttons to highlight the name of the report you want to print 5 Tap the View button 2 13 Saving Printing and Deleting Reports Viewing and Printing Saved Reports 6 When the report screen appears you can view the content of the file using the Up and Down arrows and then tap the Print button test_module N1540A N1545A SUMMARY REPORT ATM SONET Full Report Module Slot A Date 10 05 1999 Time 17 91 57 Elapsed Test Time 00 00 01 Test Status STOPPED File Mame test_module txt 7 Tap the Close button on the displayed screens until you return to the main Dual DS1 0 Tester screen 2 14 Saving Printing and Deleting Reports Deleting Saved Files Deleting Saved Files 1 2 3 Tap the File toolbar button and select the Reports option Tap the View Print Delete button on the N 1660A Reports screen Yiew Print Delete Header Information cl Defaul f Le d Tap the N1660A or the PC Card button depending on where you saved the file you want to delete Saved Reports Modified 26Aug1999 10 18 050ct1999 13 31 testmar 30Mar2000 09 53 Use the Up and Down arrow buttons to highlight the name of the report you want to delete Tap the Delete button When the confirmation screen appears tap Yes to delete the file or No to cancel Tap the Close button on the displayed screens
66. 660A SUMMARY REPORT DIAL MONITOR Module Slot A Date 30Mar2000 Time 13 59 33 Elapsed Test Time 00 00 00 Test Status STOPPED File Name TEST INFORMATION 3 3 3 3 R E Customer Name ABC CORPORATION Circuit Id 5551212 Operator Id 121212 Comments LINE TESTED TEST CONFIGURATION TEST CONFIGURATION Mode T1l Normal Line RX1 TX1 Channel 0 TX1 Line Coding AMI Line Framing ESF Clocking INT RX1 Input Terminated Trunk N A Signaling Direction N A Dial String STORED NUMBERS SN1 NONE SN2 NONE SN3 NONE SN4 NONE SN5 NONE SN6 NONE SN7 NONE SN8 NONE SN9 NONE CHANNEL STATUS 111 111111 122222 114 111111 122222 L1 123456 789012 345678 901234 L2 123456 789012 345678 901234 On Hook Off Hook Ringing A Bit 0000000 000000 000000 00000 0000000 000000 000000 00000 B Bit 0000000 000000 000000 00000 0000000 000000 000000 00000 C Bit 0000000 000000 000000 00000 0000000 000000 000000 00000 D Bit 0000000 000000 000000 00000 0000000 000000 000000 00000 CALL MONITOR LOG Capture Mode Selected Line and Channel Timeout 5 Sec Index Time Channel RX1 From CI TX1 To CI 1 16 30 40 20 Tip Gnd 2 16 30 40 21 Tip Gnd 3 16 30 40 22 Ring Gnd END REPORT N1660A
67. 660A SUMMARY REPORT EVENT L0G Module Slot amp Date 29Mar2000 Time 17 40 58 Elapsed Test Time 00 00 00 Test Status STOPPED TEST INFORMAT ION Customer Name ABC CORPORATION Operator Id TESTERL Conments LINE 0K Event Log 7 nnn nnn nnn Index Date Time Event Total 0 END PEPORT M1660A SW REV 1 20A HW REV 1 00 3N 0 When the Save Report File screen appears you can save the file using an existing filename that is listed on the screen or enter a new one go to 2 6 Saving Printing and Deleting Reports Saving a Report To use an existing filename use the Up and Down arrow keys to highlight a name in the list Then tap the Use Selected File Name button You ll see the selected name appear in the File Name field Go to step 6 Save Report File N1640A_1 26Aug1999 10 18 test_module 050ct1999 13 31 testmar 29Mar2000 17 46 5 To enter a new filename tap the Key in a File Name button and enter a new name using the popup keypad Save Report File Modified 26Aug1999 10 18 050ct1999 13 31 29Mar2000 17 46 wW Tab fa s atr a n jfk snit 2 x e v b nfm You can use any combination of characters for the file name The system automatically adds a one at the end of the prefix name the first time you generate a report for example TIMON1 TXT The module automatically increases the number each t
68. 8 co emulate 6 4 Code button 4 24 coding alarm 3 7 comments 2 5 configuration settings saving 4 44 connect module to T1 circuit 1 4 CRC alarm 3 8 create report 2 2 CSU definition 5 3 loop code 5 26 8 48 test mode 8 21 Customer Disconnect Indicator LED 3 7 customer name 2 4 D D4 frame format 5 7 8 22 DALY data pattern 8 30 data capture SCPI commands 8 14 8 15 8 60 data pattern 8 29 DDS frame sync indicator 5 41 querying information using SCPI 8 92 running a DDS BERT test 4 11 setting with SCPI 8 43 tab 4 43 5 41 test patterns 5 16 default settings 1 6 density violation 3 7 detailed results tab 4 40 5 31 Dial Monitor screen 1 11 test 6 3 6 17 Dial button 6 5 dial mode button 6 13 DP 6 10 6 13 DTMF 6 10 6 13 MF 6 10 6 13 dial string entering 6 5 entering with SCPI 8 64 8 65 sending 6 9 stored 6 11 Digital Data Service See also DDS Display button 6 4 DP dial mode 6 10 6 13 drop and insert channel settings 4 29 description 5 4 drop channel audio 4 29 selecting with SCPI 8 11 DS1 0 test SCPI command sequence 8 7 Index 2 DTMF dial mode 6 10 6 13 Dual DS1 0 test module illustration 1 2 specifications 9 1 status LEDs 1 3 duration setting 1 7 E elapsed test time 1 6 end to end BER testing 4 5 error injection rate 5 25 errors 5 24 configuring 4 4 injecting 4 35 burst rate 8 54 rate 8 54 state 8 55 type 8 53 ESF frame format 5 7 8 22 event
69. 89 9876543210 Press to Select User Patterns You return to the T1 Testing screen You ll notice the pattern you selected appears in the Pattern button s display area Continue to Running a T1 Test on page 4 35 to start your test Configuring a Fractional T1 FT1 Test The following procedure explains how to use the FracT1 button on the T1 Testing screen to generate a FT1 signal to send over specified T1 lines 1 Tap the T1 Testing toolbar button to access the T1 Testing screen 2 Tap the Line button on the T1 Testing screen to select the line on the module you want to use to transmit the signal 4 9 Testing T1 Circuits Confi 3 guring BERT Settings Tap the FracT1 button on the T1 Testing screen Fractional T1 Setup ea ros afr os V Ch F chio V chit ichas Kina Lima ae hs o O peores Select the channels on which you want to generate a FT1 signal e Select All button selects all 24 channels e Ch1 through Ch 24 buttons selects individual channels e Deselect All button lets you start your selection again When all the channels are selected press either the Nx64 or Nx56 button to indicate the base rate for the FT1 signal The base rate is the rate of a single DS1 channel Channels Selected shows the number of channels you selected e Aggregate Rate shows the aggregate bandwidth in Kbps of the selected channel Tap OK when you are finished selecting the channels
70. CPI Commands L 1 2 SOURce FRAMe lt framing format gt L 1 2 SOURce F RAMe lt framing format gt This command lets you configure the framing format DT1 L 1 2 SOURce FRAMe lt framing format gt Parameters Framing Format Description NONE Unframed T1 signals D4 D4 framing format also called SuperFrame SF ESF Extended SuperFrame framing format SLC96 SLC 96 framing format also called TR8 Default ESF L 1 2 SOURce CODE lt li ne codi ng gt This command lets you configure the line coding for the currently selected T1 circuit The line code can be set to AMI alternate mark inversion or B8ZS bipolar with eight zero substitution Default B8ZS Dual DS1 0 SCPI Commands L 1 2 SOURce CLOCk lt clock source gt L 1 2 SOURce CLOCk lt clock source gt This command lets you configure the type of clocking you want to use DT1 L 1 2 SOURce CLOCk lt c ock source gt Parameters Clock Source Description RCV1 Timing is derived from the RX1 signal RCV2 Timing is derived from the RX2 signal INTernal Timing is based on the Service Advisor s internal 1 544 MHz oscillator Default INTernal Dual DS1 0 SCPI Commands L 1 2 SOURce TERM ination lt type gt L 1 2 SOURce TERMination lt type gt This command lets you configure the termination mode for the T1 input RX TX lines DT1 L 1 2 SOURce TERMination lt type gt Parameters
71. CRC event gt 10 but lt 100 G5 CRC event gt 100 but lt 319 G6 CRC event gt 320 SE Severely Errored Framing Event gt 1 FE Frame Synchronization Error Event gt 1 LV Line Code Violation Event gt 1 SL Slip Event gt 1 LB Payload Loopback Activated 9 6 Specifications T1 Receiver Specifications T1 Receiver Specifications Number Two fully independent receivers with individual BERT T1 Standards ANSI T1X1 403 TR TSY 00008 Receives and detects BERT patterns Impedance Bridge 1000 ohms 5 ohms bridged Terminate 100 ohms 5 Monitor 100 ohms 5 Line codes AMI B8ZS once a B8ZS code is detected B8ZS is declared until LOS is detected or AutoSetup is used Framing D4 ESF SLC 96 None Fractional T1 testing rates N x56 N x64 1 lt n lt 24 contiguous or non contiguous Audio output One user selected DSO timeslot in a T1 signal is dropped to an internal speaker with adjustable volume or to a handset jack on the module with normal telephone output level Both directions can be dropped simultaneously Frequency and level are measured for the DSO channel J itter tolerance Input typically tolerates a signal modulated with sinusoidal jitter having an amplitude frequency relationship defined in ITU T Rec 703 section 3 Signal loss criteria No pulses for 192 bit times Density violations criteria Excess zeros or ones in accordance with ANSI T1 403 D4 alarm criteria Frame loss when
72. Commands L 1 2 SENSe BYTEPattern TRIGger ACTion lt OFF IM M ediate APPly gt Pulse Mask Test Commands This section describes the commands used to run a pule mask test Pulse Mask Command Structure Root Level 1 Level 2 DT 1 L 1 2 SENSe PMASk SELect lt template gt POLarity lt acquired polarity gt TOLerance lt 0 3 6 gt ACTion lt ON OFF gt 8 16 Dual DS1 0 SCPI Commands L 1 2 SENSe PMASk SELect lt template gt L 1 2 SENSe PMASkK SELect lt tenplate gt Use this command to select the pulse template you want to use for your test DT1 L 1 2 SENSe PMASk SELect lt template gt Parameters Templates Description NONE No template selected T1_ 102 Pulse mask as defined by ANSI specification T1 102 T1_403 Pulse mask as defined by ANSI specification T1 403 G703 Pulse mask as defined by the proposed update to ITU T recommendation G 703 DS3 Electrical Interface Spec T1X1 4 95 013 PUB62411 Pulse mask as defined by the Bellcore specification 62411 Default T1_403 Dual DS1 0 SCPI Commands L 1 2 SENSe PMASk POLarity lt acquired polarity gt L 1 2 SENSe PMASK POLarity lt acqui red polarity gt Use this command to select the pulse polarity to be acquired DT1 L 1 2 SENSe PMASk POLarity lt acquired polarity gt Parameters Acquired Polarity Description POSitive Indicates the test set will evaluate a rece
73. DATA lt sync status message gt DURation lt time gt Dual DS1 0 SCPI Commands L 1 2 SOURce BOC DATA lt sync status code gt L 1 2 SOURce BOC DATA lt sync status code gt Use this command to send a sync status message to FDL DT1 L 1 2 SOURce BOC DATA lt sync status code gt Parameters Sync Status Code Description 00110000 11111111 Do not use for synchronization 00000100 11111111 Strat 1 traceable 00001100 11111111 Strat 2 traceable 00100000 11111111 Strat 3 traceable 00101000 11111111 Strat 4 traceable 00100010 11111111 20 ppm traceable 00001000 11111111 Sync trace unknown 01111110 01111110 Data link idle 11111111 11111111 All ones Example DT1 L1 SOUR BOC DATA 0111111001111110 Indicates that you want to send a data link idle message to FDL Default 0000110011111111 Strat 2 traceable message 8 61 Dual DS1 0 SCPI Commands L 1 2 S OURce B OC DURation lt time gt L 1 2 SOURce BOC DURation lt time gt This command lets you configure the amount of time in milliseconds to transmit a bit orient code to FDL DT1 L 1 2 SOURce BOC DURation lt time gt Parameters Time Description Oxtfft ffff No message sent 0x0000 0000 Stop nxnnnn nnnn Number of milliseconds Default Ox ffff ffff Dual DS1 0 SCPI Commands L 1 2 SOURce BOC DURation lt time gt Signaling Option 010 Commands This sect
74. DDS4 repeating 40 pattern Note DDS5 contains 100 bytes of hex 00 1 000 binary zeros in a row Using this pattern on a T1 or DSO circuit running over AMI line coded facilities will cause a traffic affecting failure of that facility DDS6 DSO 6 A repeating pattern of seven bytes of 0111 1111 7Fh followed by a single byte of 1111 1111 FFh This pattern which runs safely on all DS1 facilities simulates the transition from IDLE to DATA mode on DDS circuits It can be used as a work around for the DS1 two minute limit on an all ones pattern It is useful for detecting marginal equipment in multipoint applications and for stressing power supplies and ALBO circuits Clocking Source The Clocking button lets you select the type of clocking you want to use RCV1 Timing is derived from the RX1 signal RCV2 Timing is derived from the RX2 signal Internal Clock Timing is based on the Service Advisor s internal 1 544 MHz oscillator 5 18 T1 Testing Screen Reference Line Build Out LBO Line Build Out LBO The Build Out button lets you select the type of line build out you want to use 0 7 5 15 22 5 dB Indicates the attenuation level in decibels from a DSX 1 level signal 0 266 399 533 655 ft Indicates the number of feet from the DSX1 BERT Pattern Sequences Controls Pattern Sequence and Test Status The pattern sequence and test status area contains controls for creating
75. Dual DS1 0 Test module must be returned a Technical Support representative will assign a Return Material Authorization RMA number No product will be accepted for service without an RMA number Ship the instrument to Repair Department Agilent Technologies Inc Service Test Division 2 Robbins Road Westford MA 01886 USA Be sure to mark the RMA number on the outside of the shipping container In addition be sure to include the following information e Model number N1660A and name Dual DS1 0 Test module e Serial number e Your name and phone number e A written description of the problem e Return ship to address e Invoice address e Payment information if unit is out of warranty Warranty amp Services 6 Glossary AB ABCD Signaling bits for DSO and T1 channels ac Alternating current ACU Alarm Control Unit AIS Alarm indication signal Originally called a Blue alarm ALBO Automatic line build out all ones A bit pattern made up entirely of binary ones 1111 AMI Alternate Mark Inversion A line coding scheme ANSI American National Standards Institute asynchronous Not synchronized not timed to an outside clock source bandwidth A network s or channel s capacity to carry traffic BER Bit error ratio The number of errored bits over the total number of bits This term is often used interchangeably with bit error rate the number of errored bits per second
76. E Sb 10 i vents gt 5 but lt CRC Events gt 10 but lt 100 Toggle Send State Send Checked o _Messages am Es None 1536 1536 Kb m 0 oa A Coding Framing Pattern FracT1 Clocking Build Out Pattern Single None Loop Loop Mute Type Rate Code Up Down CRC Events gt 100 but lt 319 CRC Events gt 320 Severely Errored Framing Event gt 1 Frame Synchronization Error Event gt 1 Line Code Violation Event gt 1 Slip Event gt 1 mo Loopback Activated ooooooooooo Tap the Loop Up button if you want to transmit the configured active code to activate loopback Tap the Loop Down button if you want to transmit the configured active code to deactivate loopback Tap the Stop toolbar button to stop the test Monitoring stops on both lines at the same time Notice the elapsed time display on the Start Stop button This indicates the length of time you ran the test 4 36 Testing T1 Circuits Running a T1 Test Injecting PRMs While a test is running you can transmit PRMs To do so follow these steps 1 Tap the T1 Testing toolbar button and then the PRMs tab Bes gt 4 pe Auto Setup Start T AB CD Bits EEE CRC Events gt 1 bu CRC Events gt 5 but lt 10 CRC Events gt 10 but lt 100 Toggle Send State CRC Events gt 100 but lt 319 CRC Events gt 320 Severely Errored Framing Event gt 1 Checked lo _Messages am Es none 1536 1536 Kb m o o C
77. Errata Title amp Document Type N1660A Users Manual Manual Part Number 1660 90000 Revision Date May 2000 HP References in this Manual This manual may contain references to HP or Hewlett Packard Please note that Hewlett Packard s former test and measurement semiconductor products and chemical analysis businesses are now part of Agilent Technologies We have made no changes to this manual copy The HP XXXX referred to in this document is now the Agilent XXXX For example model number HP8648A is now model number Agilent 8648A About this Manual We ve added this manual to the Agilent website in an effort to help you support your product This manual provides the best information we could find It may be incomplete or contain dated information and the scan quality may not be ideal If we find a better copy in the future we will add it to the Agilent website Support for Your Product Agilent no longer sells or supports this product You will find any other available product information on the Agilent Test amp Measurement website www tm agilent com Search for the model number of this product and the resulting product page will guide you to any available information Our service centers may be able to perform calibration if no repair parts are needed but no other support from Agilent is available Agilent Technologies Agilent Technologies N1660A Service Advisor Dual DS1 0 Test Module User s Manual oe Agile
78. FracT1 Clocking Build Out Line Coding The Coding button lets you select the line coding for the currently selected T1 circuit The line code can be set to AMI alternate mark inversion or B8ZS bipolar with eight zero substitution Framing Format The Framing button lets you set the framing format of the selected T1 circuit It configures the Service Advisor to use this framing format for transmitting and receiving data and for testing circuits where this framing is used NONE Unframed T1 signals D4 D4 framing format also called SuperF rame SF ESF Extended SuperF rame framing format SLC 96 SLC 96 framing format also called TR8 T1 Testing Screen Reference BERT Patterns BERT Patterns The Pattern button lets you select a data pattern to transmit on the output T1 signal This pattern is compared to the receive input signal There are four different pattern categories Standard Octet User Programmable and Density Within these categories are 1s density patterns 1 1 1 3 1 5 1 6 1 7 2 8 through 2 14 and 3 18 through 3 24 Circuit stress patterns ONES ZEROS LIVE and QRSS PRBS patterns 63 511 2047 2 15 1 220 1 and 2723 1 Octet patterns Oct 52 Oct 53 Oct 54 Oct 55 Oct 72 Oct 96 Oct 120 Daly 55 and Net 55 DDS patterns DDS1 through DDS6 T1 Testing Screen Reference Standard BERT Patterns Standard BERT Patterns Auto Detect Pattern BERT Pattern Setup QRSS
79. Message Counts This section lists the commands used to query PRM counts L 1 2 F ETCh PRM lt type of message This command returns the error count for each type of PRM detected during a test When you enter any of the commands listed below make sure to begin with the following DT1 L 1 2 FETCh For example DT1 L1 FETC G1 fetches the number of G1 messages detected during a test See PRMs Tab page 5 40 for more information about the message counts PRM Count Commands Count Description EFE Error free event count CRC Total number of CRC errors detected G1 Number of time only one CRC error was detected G2 Number of time more than one but less than or equal to five CRC errors were detected G3 Number of time more than five but less than or equal to ten CRC errors were detected G3 Number of time more than five but less than or equal to ten CRC errors were detected G4 Number of time more than ten but less than or equal to 100 CRC errors were detected G5 Number of time more than 100 but less than or equal to 319 CRC errors were detected 8 86 Dual DS1 0 SCPI Commands L 1 2 FETCh PRM lt type of message gt PRM Count Commands continued Count Description G6 Number of time more than 320 CRC errors were detected SE Number of time when at least one severely errored framing event was detected FE Number of times at least one frame
80. Nal lt characteristic gt L 1 2 F ET Ch SIGNal lt characteri sti c gt T1 Signal Characteristics Characteristic Fetches SIMPlex Status of the receiver current in mA which results from a DS1 signal voltage on the selected line LEVel Level of the signal MINimum Minimum signal level MAXimum Maximum signal level DBDSX Level peak to peak dbDSX L 1 2 F ETCh F RE Quency lt value gt T1 Signal Frequency Characteristics Value Fetches VALue Frequency measurement MINimum Minimum frequency measurement MAXimum Maximum frequency measurement 8 75 Dual DS1 0 SCPI Commands Querying Alarm Information Querying Alarm Information Use the FETCh commands described in this section to query the status of the alarms L 1 2 F ETCh ALARm lt type gt The following chart lists all the types of alarms you can look at using this command For example if you enter L1 FETC ALAR LOP the module sends back the response if an LOP was detected on line RX1 TX1 0 is the response if no LOP alarms are detected Alarm Status Type Fetches number of LOS Times a loss of signal alarm was detected LOS SEC Seconds during which a loss of signal alarm was detected LOS_OCC Occurrence count of LOS alarms OOF Times a loss of frame alarm was detected OOF SEC Seconds during which a loss of frame alarm was detected OOF OCC Occurrence count of LOF alarms
81. OCU which is useful for isolating the central office from the local loop DSUDP Latching loopback of the digital service unit DSU DSUALT Alternating loopback of the DSU CSUDP Latching loopback of the channel service unit CSU CSUALT Alternating loopback of the CSU DSODP Loopback of the DSO dataport This type of loopback is useful for isolating a hub office from an end office Default NONE 8 48 Dual DS1 0 SCPI Commands L 1 2 SOURce LOOPcode ACTion lt LPUP LPDN gt L 1 2 SOURce LOOPcode ACTion lt LPUP LPDN gt This command lets you specify whether you want to activate or deactivate loopback DT1 L 1 2 SOURce LOOPcode ACTion lt operation gt Parameters Operation Description LPUP Activates the configured loop code type see page 8 48 LPDN Deactivates loopback codes Default LPUP L 1 2 SOURce F OVWrite lt ON OFF gt This command lets you specify whether you want to use the frame bit overwrite feature to overwrite framing bits with the configured loop code Default OFF SOURce INBANd LPUP PROG1 4 lt string gt This command lets you specify four user defined inband loop up codes Each code can be up to 8 bits for example 1111 0000 You use this command in conjunction with the loop code type command see page 8 48 Example DT1 L1 SOUR INBAN LPUP PROG1 11110000 Default 00000000 Dual DS1 0 SCPI Commands SOURce INBANd LPDN PROGL1
82. Of Sync 01011000 0 0 MOS MUX Out Of Sync 011000 0 0 TST Test 00111000 0 0 TST Test 0111000 0 0 ASC Abnormal Station Condition 01111000 0 0 ASC Abnormal Station Condition 111000 0 0 END REPORT N1660A SW REV 1 30A HW REV 1 00 SN 0 2 19 Saving Printing and Deleting Reports Dual DS1 0 Sample Reports Sample BERT Sequences Report The BERT Sequences Report shows you the BERT sequences configuration settings and any BERT pattern BPV frame or CRC errors detected during the test N1660A SUMMARY REPORT BERT SEQUENCES Module Slot A Date 30Mar2000 Time 13 59 33 Elapsed Test Time 00 00 00 Test Status STOPPED File Name TEST INFORMATION nenna 3 3 3 Customer Name ABC CORPORATION Circuit Id 5551212 Operator Id 121212 Comments LINE TESTED TEST CONFIGURATION Mode T1l Normal Line RX1 TX1 RX1 Input Terminated Line Coding AMI Line Framing ESF BERT SEQUENCE SUMMARY 3 733 snr rrr HiH Name User BERT3 Run Mode Continuous Pattern Duration 5 Seconds Loops 0 Failures 0 Pattern BPV Frame CRC Pattern Status Errors Errors Errors Errors END REPORT N1660A SW REV 1 30A HW REV 1 00 SN 0 2 20 Saving Printing and Deleting Reports Dual DS1 0 Sample Reports Sample Dial Monitor Report The Dial Monitor Report shows you the configured dial monitor settings and the call monitor log events N1
83. P lt channd 0 1 24 gt This command lets you indicate which channel you want to drop from the DSO demultiplexer Parameter Range 1 through 24 0 none Default 0 L 1 2 ROUTe MUX INSert lt channd 0 1 24 gt This command lets you indicate which channel you want to insert on a DSO multiplexer Parameter Range 1 through 24 0 none Default 1 L 1 2 ROUTe SELect FT1 lt channd mask gt This command lets you enable or disable BERT on the selected channel s To enable BERT enter this command with the channel number s in decimal format you want to use BER testing Each bit in the channel mask represents channel selections For example 0x0000 0003 represents channel 1 and 2 bit 0 1 The channel mask must be a decimal value Default 1677215 OxOOff ffff for all 24 channels Dual DS1 0 SCPI Commands L 1 2 ROUTe SELect FT1 lt channel mask gt Receiver Configuration Commands This section describes the SENSe commands used to enable and disable the audio speaker on the Service Advisor platform and the handset connected to the module DT1 L 1 2 SENSe Command Structure Root Level 1 Level 2 Level 3 DT1 L 1 2 SENSe AUDio SPEAKer STATe lt ON OFF gt VOLume lt setting gt HANDset STATe lt ON OFF gt VF STATe lt ON OFF gt BYTEPattern COUNt lt value gt STORe lt PROG1 PROG2 PROG3 PROG4 gt TRIGger MASK lt data pattern gt
84. SW REV 1 30A HW REV 1 00 SN 0 2 21 Saving Printing and Deleting Reports Dual DS1 0 Sample Reports Sample Pulse Mask Report The Pulse Mask Test shows you the configured pulse mask settings and test results N1660A SUMMARY REPORT PULSE MASK Module Slot A Date 30Mar2000 Time 13 59 33 Elapsed Test Time 00 00 00 Test Status STOPPED File Name TEST INFORMATION Customer Name ABC CORPORATION Circuit Id 5551212 Operator Id 121212 Comments LINE TESTED PULSE MASK SUMMARY Line 1 Template T1_102 Tolerance 0 Polarity Positive Negative Status Pass se Amplitude mv 2989 Rise Time ns 72 PHH Fall Time ns 62 S Width ns 342 a Overshoot LO ee Undershoot 10 8 S Imbalance Ratio 0 0 Time Upper Mask Lower Mask Positive Negative No Pulse Mask data END REPORT N1660A SW REV 1 20A HW REV 1 00 SN 0 2 22 Saving Printing and Deleting Reports Dual DS1 0 Sample Reports Sample Event Log Data Report The Event Log Report contains the events errors and alarms detected N1660A SUMMARY REPORT EVENT LOG Module Slot A Date 30Mar2000 Test Status STOPPED TEST INFORMATION Time 13 59 33 Elapsed Test Time 00 00 00 File Name T1IEVLOG1 txt Customer Name ABC CORPORATION Operator Id 12121
85. T1M1 3 The byte values hex are as follows 01010101 01018001 01010101 01030101 01010701 01010155 555555AA AAAAAAO1 01010101 O1FFFFFF FFFFFF80 01800180 01800180 018001 Net 55 A 55 octet pattern Similar to the Daly pattern but byte 3 is 03 and byte 7 is 00 T1 Testing Screen Reference User Programmable Settings User Programmable Settings BERT Pattern Setup QRSS Select a Pattern to BERT USER4 BIT USER2 BIT USER3 BIT USER4 BIT 41110000 1011001110 1000100010 1111411100 Category LONG1 BYTE Lonc2 BYTE LONG3I BYTE LonG4 BYTE ABCDEFGHU abedefghi 0123456789 9876543210 Press to Program User Patterns Auto Detect Invert Pattern m Patterns Erias The following table defines the default user programmable patterns To change a default pattern tap the Press to Program User Patterns button and enter a 3 to 24 bit pattern User Programmable BERT Patterns Pattern Default Setting USER1 BIT 1111 0000 USER2 BIT 1011 0011 1000 1111 0000 USER3 BIT 1000 1000 1000 1000 1 USER4 BIT 1111 1111 0000 0000 1111 1111 LONG1 BYTE ABCDEFGHIJKLMNOPORSTUVWXYZ LONG2 BYTE abcdefghijklmnopgrstuvwxyz LONG3 BYTE 0123456789 LONG4 BYTE 9876543210 5 14 T1 Testing Screen Reference Density Settings Density Settings BERT Pattern Setup QRSS Category Select a Pattern to BERT
86. UALITY AND FITNESS FOR A PARTICULAR PURPOSE Some countries states or provinces do not allow limitations on the duration of an implied warranty so the above limitation or exclusion might not apply to you This warranty gives you specific legal rights and you might also have other rights that vary from country to country state to state or province to province Warranty amp Services 2 10 TO THE EXTENT ALLOWED BY LOCAL LAW THE REMEDIES IN THIS WARRANTY STATEMENT ARE YOUR SOLE AND EXCLUSIVE REMEDIES EXCEPT AS INDICATED ABOVE IN NO EVENT WILL AGILENT OR ITS SUPPLIERS BE LIABLE FOR LOSS OF DATA OR FOR DIRECT SPECIAL INCIDENTAL CONSEQUENTIAL INCLUDING LOST PROFIT OR DATA OR OTHER DAMAGE WHETHER BASED IN CONTRACT TORT OR OTHERWISE Some countries states or provinces do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you THE WARRANTY TERMS CONTAINED IN THIS STATEMENT EXCEPT TO THE EXTENT LAWFULLY PERMITTED DO NOT EXCLUDE RESTRICT OR MODIFY AND ARE IN ADDITION TO THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU Warranty amp Services 3 Services and Support Services and Support If you are looking for a product manual or related information and services such as answers to frequently asked questions FAQ access the following Web site ww w agilent com comms If your Dual DS1 0 Test module doe
87. X2 TX2 tap the Mute button you ll see a check mark appear in the button 6 11 Using the Signaling Option 010 Entering a Dial String 9 Tap the Send button to send the displayed dial string over the T1 circuit When the dial string is sent over the T1 circuit e the Signaling Status indicators light when the CI or CO ends of the circuit go on hook or off hook e the Call Monitor Logging file automatically appears see Viewinga Call Monitor Log File page 6 15 e the Start toolbar button become a Stop button Start button becomes a Stop button Signaling status indicators 3N1660A Dual DS1 0 Tester Dial 7 Monitor Test Go On Go Off Hook Now Hook Now RX1 TX1 15 49 28 24 Seize 15 49 28 25 Seize 15 49 28 1 Tip Gnd 15 49 28 2 Tip Gnd 15 49 28 3 Ring Gnd 15 49 28 4 Ring Gnd 15 49 28 5 Close Loop 15 49 28 6 Connect Ro 15 49 28 7 Disconnect 15 49 28 8 Abort 15 49 28 9 Abort 15 49 28 10 Glare Loop Start 15 49 28 11 Too Short 15 49 28 Ring On 15 49 28 Ring On 10 To stop sending a dial string tap the Stop toolbar button 6 12 Using the Signaling Option 010 Entering a Dial String Programming and Sending Stored Numbers Follow these steps to enter save and send dial strings You can define and save up to nine dial strings 1 Tap the Program Stored Numbers button on the main Dial Monitor Test screen Highlight a selection SN1 through SNQ in th
88. a T1 Circuit Connecting a Service Advisor to a T1 Circuit Caution Potentially dangerous voltage may be present on the line Use extreme caution when connecting to the line See the section Electric Shock Hazard in the front of this manual 1 Insert a Dual DS1 0 Test module into a Service Advisor platform See the appropriate manual for instructions Service Advisor Portable Test Tablet User s Manual N 1610 90000 e Service Advisor Undercradle and SACompani on Software User s Manual N1700 90000 2 Install a cable between the Dual DS1 0 Test module s L1 or L2 connection and the T1 circuit you plan to test Install a second cable if you plan to test two circuits 3 Install a cable between the Earth Ground connection on the Dual DS1 0 Test module and an earth ground connection on the circuit you are evaluating 4 For speaking and listening over aDSO channel you can connect a handset to the module s handset connector 5 Power ON your Service Advisor platform 6 If you re running tests from the Service Advisor Tablet tap the Enable button in the Service Advisor Manager program for the slot where the Dual DS1 0 Test module is installed See Working with the Service Advisor Manager section in Chapter 2 of the Service Advisor Portable Test Tablet User s Manual N 1610 90000 If you re remotely controlling a Service Advisor Tablet or using the Undercradle and Internet Advisor with a Dual DS1 0 T
89. a lists all the events that occur on the specified line and channel s Index A sequential number assigned to each event Time The time of day for each event The time stamp is based on the Service Advisor s internal time of day clock Chan The channel on which the event occurred RX1 RX2 A description of the event that occurred on the line TX1 TX2 A description of the event that occurred on the line Using the Signaling Option 010 6 18 Using the Pulse Mask Screen 7 2 Pulse Mask Waveform 7 5 Pulse Mask Measurements 7 6 Using the Pulse Mask Option 020 Using the Pulse M ask Option 020 Using the Pulse Mask Screen Using the Pulse Mask Screen If you purchased the Pulse Mask Option 020 for your tester you will see a Pulse Mask option when you tap the Test toolbar button The Pulse Mask testing feature lets you evaluate the shape of a received DS1 pulse a positive or negative pulse represents a binary 1 and compare it to one of a set of standardized masks A pulse mask is a standardized range defining the boundaries of an ideal waveform shape Pulse mask test settings screen Configured test settings IN1660A Dual DS1 0 Tester Pulse Mask gt 10 Rx Puise I Smee fm B gt T1 Analysis T4 Testing Eveht Log Auto Setup _ Pulse Mask L1 T1 403 0 Pulse Mask Setup Resulting pulse mask SEES waveform 3 Amplitude
90. a sequence of BERT patterns you want to transmit during a test Use the BERT Sequences option to run Bridge Tap Pattern BTP or Multiple Test Pattern MTP sequences see page 4 15 or create up to four different customized sequences of BERT patterns see page 4 20 To access the BERT Sequences screen tap the Test toolbar button and select the BERT Sequences option from the drop down menu gt RxX1 RX BERT R 00 00 00 RX 1X Continuous w5 T1 Analysis T1 Testing Auto Setup Start File Help H izz Es ERA ase 2 38 Analysis T4 Testing Auto Setup Start File Help Pattern Errors BP Errors Frame Errors CRC Errors Pattern sequence and status 2 Select E BREA controls 7 INONE oe SSSe forss b buttons bo Code Signal setup and test results Error injection buttons Loop code buttons 4 14 Testing T1 Circuits Configuring BERT Sequences Running Bridge Tap Pattern BTP and Multiple Test Pattern MTP Tests The Bridge Tap Patterns BTP and Multiple Test Patterns MTP are predefined test pattern sequences that the Dual DS1 0 Test module provides for BER testing The Bridge Tap Patterns BTP sequence is useful for detecting bridge taps and other impairments on a T1 span The Multiple Test Patterns MTP sequence aids in acceptance testing and automatic testing of span lines Follow these steps to run a BTP MTP test 1 3 Ac
91. able and red unacceptable TX1 RX1 The frequency difference between both transmit lines TX1 minus TX2 A positive number indicates TX1 is running faster than TX2 a negative number indicates TX1 is running slower than TX2 5 34 T1 Testing Screen Reference Signal Tab Signal Measurement Descriptions continued Result Description Bit Slips The number of individual timeslot differences between the receive signal and the reference signal A positive value indicates the receive frequency is greater than the reference frequency a negative value indicates the receive frequency is less than the reference frequency Frame Slips The number of times a difference of 193 timeslots bits occurred between the receive signal and the reference signal The count indicates frame slips when the receive signal was faster than the reference signal the count indicates when the receive signal was slower than the reference 5 35 T1 Testing Screen Reference VF Tab VF Tab The VF Voice Frequency tab enables you to drop voice frequency VF channels to the Service Advisor s speaker for audio monitoring and to insert tones on a channel in the T1 circuit See Setti ng the Voi ce Frequency Audio Controls page 4 28 N1660A Dual DS1 0 Tester T1 Testing Bridge Tap gt rx1 a EA R x E EZA BS T1 Analysis Event El Auto Setup Start File Help Test Detailed AB CD TE sumas mems Sem ve
92. al on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 SIGNal RING Reads the ring state of the received signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 The return value is also dependent on the trunk type specified in the L 1 2 ROUT SIGN TRUN CH1 24 lt trunk type gt see page 8 66 SIGNal ONHOOK Reads the on hook state of the received signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 The return value is also dependent on the trunk type specified in the L 1 2 ROUT SIGN TRUN CH1 24 lt trunk type gt see page 8 66 8 68 Dual DS1 0 SCPI Commands Signaling Fetch Commands Signaling Fetch Commands continued Command Description SIGNal OFFHOOK Reads the off hook state of the received signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 The return value is also dependent on the trunk type specified in the L 1 2 ROUT SIGN TRUN CH1 24 lt trunk type gt see page 8 66 TXSIGNal ABIT Reads the A bit of the transmitted signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 TXSIGNal BBIT Reads the B bit of the transmitted signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt se
93. and does not save any level changes 8 If you selected 3 tone slope press the Tone Duration button to set the amount of time you want the tone sent over the line for the Three Tone Slope test Enter Value 1 9999 Seconds 3 Seconds The Clear button clears the displayed level Tap OK to save your entry and return to the T1 Testing screen The Cancel button returns you to VF Tab display and does not save any level changes 4 32 Testing T1 Circuits Setting the Transmit Signaling Bits Setting the Transmit Signaling Bits You can set the signaling bits you want to transmit over the circuit to busy out the other channels while you re testing 1 OntheT1 Testing screen press the AB CD Bits tab to view the signaling bits set for all 24 channels on a T1 line Test Detailed Summary Results 000000 000000 000000 000000 000000 000000 000000 000000 Signaling 000000 000000 000000 000000 000000 000000 000000 000000 The Framing type determines the bits displayed on this screen Use the following chart as a reference AB CD Bits Displayed for Each Frame Type Frame Type Setting Bits Displayed None No bits displayed cannot insert signaling bits on a channel with this frame type D4 A and B bits ESF A B C and D bits SLC 96 A and B bits 4 33 Testing T1 Circuits Setting the Transmit Signaling Bits 2 Tap the Modify TX Signaling Bits button if you want to modify the
94. as detected Error Free Events shows the number of events during which no errors occurred Total CRC Events shows the total number of CRC errors received during a test 4 38 Testing T1 Circuits View ing Test Results Viewing Test Results When you run aT1 test results are divided among four different tabs Test Summary shows the configured framing BERT pattern and coding settings the current results message and frame bit and BPV error counts Detailed Results shows statistics for BERT pattern BPV CRC and frame errors and synchronization errors Signal shows the physical characteristics of the RX and TX signals for the selected line Voice Frequency lets you set up and run tests monitor and control both audio drop and audio insert on a specific channel for the selected line AB CD Bits shows signaling bits for all 24 channels of the selected line and lets you modify the transmit signaling bits for all 24 channels PRMs shows the counts for performance report messages error free events and total CRC events DDS shows information about the RX DDS control codes on the selected DDS channel 4 39 Testing T1 Circuits View ing Test Results To view T1 test results complete these steps 1 Tap the Test Summary tab to view configuration information about the currently selected T1 line and error counts See Test Summary Tab page 5 29 for a description of results displayed on this tab
95. ate button to view the current report file T1 Analysis Report M15604 SUMMARY REPORT T1 AWALYSIS 1 Module Slot amp Date 20MarZ000 Time 15 49 58 Elapsed Test Time 00 00 00 Test Status STOPPED TEST INFORMAT ION Customer Name ABC CORPORATION Operator Id 121212 Header Information you Conmence LIME TESTED entered sioman suman You can save or print the displayed report or tap the Close button to exit from this function and return to the N1660A Reports screen To save the displayed report see Saving a Report page 2 6 To print the displayed report tap the Print button Then tap the Close button to return to the N1660A Reports screen 2 5 Saving Printing and Deleting Reports Saving a Report Saving a Report You can save report information either while a test is in progress or after it has been stopped You can select to save the information in either the Dual DS1 0 Test module or the Flash Memory card Follow these steps to save results in a file 1 2 3 4 Tap the File toolbar button and select the Reports option Tap the Create button on the N1660A Reports screen The current report information appears on the Report screen Tap the scroll arrow buttons to view the report Then tap the Save or Print button If you tap the Close button the report information is not saved and you return to the N1660A Reports screen Event Log Report H1
96. bar T1 Testing Test EventLog AutoSetup Start File Help RX1 Status RX2 Status Signal Status A z z z RX1 status and alarm information Signal status and ae Ae alarm indicators OC OC yore Tea MH 75Hz Coding framing and BERT pattern errors RXT Input EE AT Start JN1610A Service Adv 33 N16604 Dual D51 0 Test Signal frequency level and bit frame slip display 1 8 Using the Dual DS1 0 Test M odule T1 Testing Screen T1 Testing Screen Tap the T1 Testing toolbar button to configure and run tests on one or two T1 circuits See Chapter 4 Testing T1 Circuits for more information about using this screen Test results and N1660A Dual DS1 0 Tester T1 Testing measurements tabs Test mode Line you re configuring _ z Termination mode Signal indicators B825 orss is3exb int ode Coding Pattern FracTi Clocking Build Out Pattern Single None Loop Loop M Mute Type Rate Code Up Down Transmitter setup controls Error alarm setup controls Loop code setup controls and status 1 9 Using the Dual DS1 0 Test M odule BERT Sequences Screen BERT Sequences Screen Tap the Test toolbar button and select the BERT Sequences test option The BERT Sequences screen lets you select the BERT Bridge Tap Patterns BTP test sequence the Multiple Test Patterns MTP test sequence or create up to four customized BERT test sequenc
97. bes how to access the event log which shows the stored events errors and alarms 1 Tap the Event Log toolbar button N1660A Dual DS1 0 Tester Event Log RX Ed pan Eea 00 00 EES Ed Eal pan E aa T4 Analysis T1 Testing Test Auto Setup Start Index Date Top of list Previous page Previous item Next item Next page Bottom of list Events 2 Usethe scroll buttons on the right side of the screen to move through the list of events The Clear All button clears all displayed events You can save print and delete the event log See Saving Printing and Ddeting Reports page 2 1 for more information 1 13 Using the Dual DS1 0 Test M odule Using the Auto Setup Feature Using the Auto Setup Feature Use the Auto Setup feature when you want the tester to configure its transmitter to the receiver s line configuration During the Auto Setup process the tester scans the receive signal to determine its characteristics line coding line framing and BERT pattern e automatically configures the Service Advisor for that type of configuration e resets error counters alarm indicators and elapsed test time e starts the selected test shown in the Test Mode field on the T1 Testing screen This function is useful for configuring the Service Advisor when you re unsure of the network configuration Note You cannot use the Auto Setup feature when the tester is in Internal Loop mode see Setting Up
98. bits per second kHz Kilohertz LBO See line build out LCD Liquid crystal display LCVA Line code violation alarm line build out A circuit that simulates the signal attenuation of a specified cable length Glossary LLB See FDL LLB LOF Loss of frame loopback A state in which the transmit signal is reversed back as the receive signal typically by a far end network element LOS Loss of signal Mb Megabit One million bits Mb s Megabits per second MHz Megahertz monitor level The signal level ata DSX Monitor point ms Millisecond multiframe A set of consecutive frames in which the position of each is defined in relation to a multiframe alignment signal N x 64 N x56 A subrate signal ona DS1 formed by using N number of 64 Kb s or 56 Kb s channels NIU Network Interface Unit octet Eight bits Typically refers to a group of bits that spans more that one byte Compare byte OIU Office Interface Unit OOF Out of frame overhead The bits or bytes in a frame or cell that are not the payload Overhead provides for signal control and monitoring parity An error checking method that uses extra bits to provide even or odd parity for a specific group of bits Glossary 3 Glossary payload Theinformation bits of a frame or cell Those bits that are not part of the overhead PLB SeeFDL PLB PRBS Pseudorandom bit sequence A test pattern that simulates live random tra
99. buttons You ll see the selected trunk type appear in the selected channel s display 6 8 Using the Signaling Option 010 Entering a Dial String Tap the Select All button if you want to set all or most of the channels to the same trunk type Tap the Deselect All button to de select the selected yellow channel buttons Tap OK to save the trunk types set for each channel Tap the Cancel button to cancel your selections and return to the main Dial Monitor Test screen Entering and Sending a Dial String After you set the signaling mode the channel and trunk type on the left side of the main Dial Monitor Test screen see Configuring Trunk Type and Si gnali ng Direction page 6 6 you enter the dial string you want to send on the configured line and channel Follow these steps to enter the dial string you want to send on the displayed channel is ial string display Cursor movement buttons g al mode button sert digits button Digits sert stored number button Stored Number Send dial string button Keypad to enter dial string 1 Tap the Digits button on the main Dial Monitor Test screen 2 Tap the Dial Mode button until the desired mode appears Modes are DTMF MF and DP 6 9 Using the Signaling Option 010 Entering a Dial String 3 Enter the desired dial string using the displayed keypad A dial string can be 1 to 32 digits in length DTMF Dial Mo
100. ce Frequency Signaling Commands This section describes the SOURce commands which configure the transmitter parameters that voice frequency signaling option DT1 L 1 2 SOURce Command Structure Root Level 1 Level 2 DT1 L 1 2 SOURce AUDio SOURce lt NONE MiCrophone gt TONE FREQ1 8 lt frequency gt LEVel lt level gt SIGNal ABIT lt 0 1 gt BBIT lt 0 1 gt CBIT lt 0 1 gt DBIT lt 0 1 gt STATe lt ON OFF gt Dual DS1 0 SCPI Commands L 1 2 SOURce AUDio SOURCce lt M ICrophone NONE gt L 1 2 SOU Rce AU Dio SOURce lt MICrophone NONE gt This command lets you select a transmit audio source DT1 L 1 2 SOURce AUDio SOURce lt source gt Parameters Source Description NONE Sends configured tones over the line MlCrophone Transmits audio to handset Default NONE L 1 2 SOURce TONE FREQ 1 8 lt frequency gt This command lets you enter up to eight different tone frequencies to transmit over the T1 line when you are running a multi tone test You can enter a tone between 200 and 3950 Hertz Example L1 SOUR TONE FREQ1 404 Parameter Range 200 to 3950 Default 0 Dual DS1 0 SCPI Commands L 1 2 SOURce TONE LEVel lt level gt L 1 2 SOURce TONE LEVel lt levd gt This command lets you generate a tone at a specific level with a selected frequency when running a multi tone test You can enter
101. cess the BERT Sequences screen by tapping the Test toolbar button and selecting the BERT Sequences option from the drop down menu Tap the Line button and select the T1 line RX1 TX1 or RX2 TX2 you want to run the BER test on N1660A Dual DS1 0 Tester BERT Sequences Bridge Tap 00 00 00 ae Auto Setup Start File Help Pattern Errors Frame Errors CRC Errors 1 7 as uae ae 2 8 Select PROMO insert Add Delete Hold Advance Pattern Pattern Pattern Pattern Pattern Sequence L a ee ow ee e Frame CRC Continuous ex Je To set the pattern duration Tap the Run Mode button to select either conti nuous or once Continuous runs the selected sequence continuously until the test is stopped Oncetransmits the selected sequence once 4 15 Testing T1 Circuits Configuring BERT Sequences e Tap the Run each pattern for button and enter the length of time 5 to 300 seconds to transmit each pattern in the sequence on the popup keypad Enter Value 5 300 Seconds 5 Seconds The Clear button clears the displayed duration Tap OK to save the duration you entered and return to the BERT Sequences screen The Cancel button returns you to the BERT Sequences screen and does not change the duration setting 4 Check the Framing Coding and Pattern settings If you need to modify a setting press the T1 Testing toolbar See Setting Up a T1 Test page 4 3 for more informatio
102. cond intervals during which at least one Customer Disconnect Indicator event occurred and the number of CDIs detected during a test 5 30 T1 Testing Screen Reference Detailed Results Tab Detailed Results Tab The Detailed Results tab displays BERT error counts for the currently selected T1 as described in the following table Test Signal AB CD Summary Bits _ Notation BERT Error Count Descriptions Type of Error Pattern BERT Result Description Count The number of receive pattern bits that did not match the selected pattern Rate The ratio of errored pattern bits to total number of pattern bits received since the beginning of the test Errored Seconds ES The number of seconds during which at least one pattern bit error occurred Severely Errored Seconds SES The number of seconds during which the error rate was 10 or greater Consecutive Severely Errored Seconds CSES The number of SESs for which the previous two seconds were also SESs Unavailable Seconds UAS Number of seconds the circuit was unavailable while errors were being monitored Error free Seconds EFS The total number of seconds during which no pattern error occurred 5 31 T1 Testing Screen Reference Detailed Results Tab BERT Error Count Descriptions continued Type of Error Result BPV bi polar Count Description The number of BPVs detected
103. conjunction with the procedures in Chapter 4 to configure and run T1 tests Using the Signaling Option 010 Chapter 6 describes how to use the Signaling Option When you purchase this option you can enter monitor and display dialing information for DSO channels Using the Pulse Mask Option 020 Chapter 7 describes how to use the Pulse Mask Option When you purchase this option you can evaluate the shape of a received DS1 pulse and compare it to one of a set of standardized masks About this Book Dual DS1 0 SCPI Commands Chapter 8 contains reference information for using SCPI commands to operate the Dual DS1 0 Test module remotely Specifications Chapter 9 lists technical specifications of the Dual DS1 0 Test module along with information about how to order accessories About this Version About this Version Applicability This version of the Service Advisor Dual DS1 0 Test Module User Manual applies to the N1610A Tablet the N1700A Undercradle with an Internet Advisor and the N1660A Dual DS1 0 Test module running operating software version 1 3 or later and user interface software version 1 3 or later Be sure to refer to any user s manual supplements or release notes that came with the unit or call 1 800 452 4844 Dual DS1 0 Test Module User s M anual printing history Version Release date Notes 1 0 September 1999 11 November 1999 2 0 March 2000 3 0 May 2000 Updated to r
104. d Error Alarm Injection Injection Type Pattern Injection Rate Single Loop Code None Looped Status Not Looped TX RX SIGNALS TRANSMITTED SIGNAL TX1 Line Coding AMI Line Framing ESF BERT Pattern NONE Clocking INT Line Build Out 0 dB Non BERT Channels Idle FT1 Mode NxX64 1536 FT1 Chans 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 RECEIVED SIGNAL RX1 Line Coding AMI Line Framing ESF BERT Pattern NONE 0 0 1 J 0 1543843Hz 1500000Hz 1600000Hz SIGNALING BITS RX1 RX1 TX1 RESULTS A 000000 000000 000000 000000 TX1 Freq 0Hz TX1 RX1 0Hz B 000000 000000 000000 000000 Bit Slips0 Frame Slips0 C 000000 000000 000000 000000 Round Trip Delay usec 0 D 000000 000000 000000 000000 ERROR RESULTS Error Errored Severely Consecutive Error Free ERROR COUNTS Count Secs ES ES SES SES CSES Secs EFS Pattern 374796874 0 0 22788 0 BPV 374904778 0 0 0 0 CRC 370817337 0 0 0 0 Prang Seana 372988355 0 0 0 0 ERROR RATES Rate ESS SESS CSES EFS Pattern 0 0 0 0 0 0 2278800 0 0 0 BPV 0 0 0 0 0 0 0 0 0 0 CRC 0 0 0 0 0 0 0 0 0 0 Frame 0 0 0 0 0 0 0 0 0 0 2 18 Saving Printing and Deleting Reports Dual DS1 0 Sample Reports Sample T1 Testing Report continued ALARM RESULTS
105. d select the DSO channel you want to dial on from the popup screen Select a Channel 1 24 Tap the A and W buttons to increase or decrease the displayed channel by one Tap OK to save your channel selection and return to the previous window Tap Cancel to return to the previous screen without changing the channel 5 Tap the Trunk Type button The Service Advisor uses the trunk type setting to make sure that it inserts the signaling bits properly Each trunk type has its own signaling bit scheme to represent on hook off hook and ringing signals 6 7 Using the Signaling Option 010 Entering a Dial String 6 Tap one of the trunk type buttons This sets the trunk type for all 24 channels to the same value Tap the Mixed Trunks button to set the trunk type for each channel individually Select Trunk Type E amp M z _tmtlne ote Medea Cancel Note When you shut down the tester using the File toolbar button and the Exit option the trunk type settings are saved in the module s flash memory 7 Ifyou tapped the Mixed Trunks button the following screen appears Line you are configuring Trunk type setting L1 Select Trunk Type s DSO channel number Selects all channels Deselect All De selects any selected channel E amp M Popua E coal o Trunk type buttons Tap a channel button 1 24 The selected channel button turns yellow Tap one of the trunk type
106. de Keys 0 to 9 A to D asterisk and pound sign MF Dial Mode Keys 0 to 9 KP ST STP ST2P and ST3P DP Dial Mode Keys 0 to 9 Use the cursor movement buttons to modify your entry Dial Mode Cursor Movement Keys Button Description Moves the cursor to the first digit or code in the dial string Moves the cursor one digit or code to the left Moves the cursor one digit or code to the right Moves the cursor to the end of the dial string Inserts the key you tapped before the cursor Deletes the preceding digit or code Clears the entry from the display 4 Tap the Pause button to insert a pause code in the dial string 5 Tap the Go Off Hook button to insert a GoOffHook code in the dial string 6 10 Using the Signaling Option 010 Entering a Dial String 6 Tap the Go On Hook button to insert a GoOnHook code in the dial string 7 Tap the Stored Number button to select a stored dial string DT 123459 Insert Clear Digits Stored Number Tap one of the stored number SN1 SN9 buttons and the stored dial string appears in the display If no dial string appears there is no dial string associated with the button For more information about saving dial strings see Programming and Sending Stored Numbers page 6 13 8 Tap the Speaker Control or button to decrease or increase the volume of the audio speaker on the Service Advisor To mute the sound for aT1 line RX1 TX1 or R
107. displayed bit patterns L1 Modify Transmit Signaling Bits OK Disabled 1100 O0o11 Disabled Disabled Disabled 4 2 3 4 5 6 ee ae n ps 7 8 3 10 1 12 Cancel Select All 1 Tap the 1 to 4 Disabled Disabled Disabled Disabled Disabled Disabled ee ii y 13 14 15 16 7 18 ie 2 a ol oa ba 19 20 21 22 23 24 2 Tap a bit pattern for the selected channel A eS Es ices esa et ies Deselect All Disable eee 3 Tap OK to set patterns for the selected channels 3 Select the channel and the signaling bits you want to transmit over a circuit You ll notice when you press a channel button it turns yellow to indicate that it is selected You can select multiple channels and apply the same bit pattern to these selected channels e Select All button selects all 24 channels e 1 through 24 buttons selects individual channels e Deselect All button lets you start your selection again Disable button indicates that you do not want to transmit signaling bits over the selected channel s 4 Select a bit pattern button on the lower part of the screen The bit pattern is set for all selected yellow channels 5 Tap OK to save the bit pattern settings The Cancel button returns you to the T1 Testing screen and does not save any bit pattern changes The configured signaling bits are sent out on the appropriate channels while a test is running 4 34 Testing T1 Circuits Running
108. e information about querying the total DDS control code count Parameter Values any number Default 0 Dual DS1 0 SCPI Commands L 1 2 SENSe DDS CTRLcode INDEX lt value gt Transmitter Loop Code Commands This section describes the SOURce commands used to configure the loop codes the transmitter sends over the T1 line DT1 L 1 2 SOURce Command Structure Root Level 1 Level 2 Level 3 DT1 L 1 2 SOURce LOOPcode TYPE lt type gt ACTion lt LPUP LPDN gt FOVWrite lt ON OFF gt DT1 SOURce INBANd LPUP PROG1 4 lt string gt LPDN PROG1 4 lt string gt OUTBANd LPUP PR0G1 4 lt string gt LPDN PR0G1 4 lt string gt 8 47 Dual DS1 0 SCPI Commands L 1 2 SOURce LOOPcode TYPE lt type gt L 1 2 SOURce LOOPcode TYPE lt type gt This command lets you configure the type of loop code you want to use DT1 L 1 2 SOURce LOOPcode TYPE lt type gt Parameters Type Description NONE No loop code CSU Customer Service Unit loopback NIU NIU4 NIUG Network Interface Unit loopback LINE Line loopback PAYLoad Payload loopback NETWork Network loopback V54 Standard ITU T V 54 loopback OCUDP Office Channel Unit DSO dataport loopback INBAND_PROG1 4 User defined inband loopback code QUTBAND PROG1 4 User defined out of band loopback code OCUALT Alternating loopback of the office channel unit
109. e out of band 0101 0100 1111 1111 0101 0100 1111 1111 LCO2 user programmable out of band 0010 1010 1111 1111 0010 1010 1111 1111 T1 Testing Screen Reference Loop Code Controls Loop Code Definitions continued Loop Code Type LCO3 user programmable out of band Default Loop Up Code Default Loop Down Code 0111 0000 1111 1111 0111 0000 1111 1111 LCO4 user programmable out of band 0000 1110 11111111 0000 1110 1111 1111 OCUALT Alternating loopback of the office channel unit OCU which is useful for isolating the central office from the local loop Frame Bit Overwrite Tap the Frame Bit Overwrite button if you want to overwrite framing bits with the selected loop code Loop Up Down Buttons Loop Up Transmits the selected type of loop up codes to activate loopback Loop Dn Transmits the selected type of loop down codes to deactivate loopback 5 28 T1 Testing Screen Reference Test Summary Tab Test Summary Tab The Test Summary tab displays configuration information about the currently selected T1 line as well as a summary of test results Coding The current line code setting and the number of coding errors detected Framing The current framing format and the number of framing errors detected Pattern The current payload pattern setting and the number of BERT pattern errors detected CRC The number of CRC errors detected ESF format only
110. e Loop Code You can create four additional inband and four out of band loop codes by following these steps 1 2 Tap the Code button on the T1 Testing screen Tap the Frame Bit Overwrite button if you want to overwrite the framing bits with the selected loop code Tap the Programmable Loop Codes button on the Select Loop Code screen Use the A and buttons to highlight one of the loop codes Select User Programmable Loop Code LCI In Band 1100 00111100 10101010 11111111 0101010011111111 0010101011111111 0111000011111111 LCO4 Out of Band 0000111011111111 1100 00111100 10101010 11111111 0101010011111111 0010101011111111 0111000011111111 0000111011111111 Edit Loop Up Code Edit Loop Down Code LCI1 to LCI4 are inband codes and LCO1 to LCO4 are out of band codes The code you enter changes six bits Oxxx xxx0 1111 1111 shown as x 4 26 Testing T1 Circuits Configuring a Loop Code 5 Tap the Edit Loop Up Code or the Edit Loop Down Code button depending on which type of loop code you want to enter See Default Loop up and Loop down Settings page 5 26 for a listing of the default settings e If you are entering an inband loop code LCI1 LCI4 code use the 0 and 1 buttons to enter the new loop code on the Edit Bit Pattern screen Edit Bit Pattern Delete preceding digit Clear entry M oves cursor to M oves cursorto the first digit next digit M oves curs
111. e Select Stored Number section of the screen Use the A or Y arrow to scroll through the list 3N1660A Dual DS1 0 Tester Monitor Test 00 00 00 Continuous pT 782663300 DT 9782663300 MF 9782663300 DP 978 2663300 DT 978 MF 2663300 none none none none none Tap the Dial Mode button until the desired mode appears Modes are DTMF MF and DP Enter the desired dial string using the displayed keypad The dial string can be 1 to 32 digits in length DTMF Dial Mode Keys 0 to 9 A to D asterisk and pound sign MF Dial Mode Keys 0 to 9 KP ST STP ST2P and ST3P DP Dial Mode Keys 0 to 9 Use the cursor movement buttons to modify your entry see Dial Mode Cursor Movement Keys page 6 10 for a description of each key Tap the Pause button to insert a pause code in the dial string Tap the Store button to save the displayed dial string 6 13 Using the Signaling Option 010 Entering a Dial String To send a stored dial string tap the Dial function button The selected stored dial string appears in the display Tap the Send button to send the displayed dial string over the T1 circuit When the dial string is sent over the T1 circuit e the Signaling Status indicators light when the CI or CO ends of the circuit go on hook or off hook e the Call Monitor Logging file automatically appears see Viewinga Call Monitor Log File page 6 15 e the Start toolbar button
112. e Up and Down arrow buttons let you move through the list of BERT patterns e Pattern button injects logic errors into the BERT payload pattern BPV button injects bipolar violations into the BERT payload pattern A BPV is a pulse that breaks the alternating polarity rule 4 18 Testing T1 Circuits Configuring BERT Sequences e Frame button injects framing bit errors into the BERT payload pattern Note that this error is inserted only into those F bits that are used for framing e CRC button injects CRC cyclic redundancy checksum errors into the BERT payload pattern Loop Up button transmits the selected type of loop up codes to activate loopback Loop Down button transmits the selected type of loop down codes to deactivate loopback 11 Tap the Stop toolbar button to stop a test 4 19 Testing T1 Circuits Configuring BERT Sequences Running a Customized BERT Sequence This section explains how to run a BER test using a customized sequence of BERT patterns 1 Access the BERT Sequences screen by tapping the Test toolbar button and selecting the BERT Sequences option from the drop down menu 2 Tap the Select Another Sequence button L1 Select a BERT Sequence to Run se ei user ear User BERT3 User BERT4 3 Tap one of the User BERT buttons These buttons let you configure up to four different BERT pattern sequences The Cancel button returns you to the BERT Sequences screen N1660A Dua
113. e circuit side on which to transmit the signal generated by the Service Advisor The Dual DS1 0 Test module is designed to always send the entered dial string on RX1 TX1 line 1 If you are in Drop and Insert test mode line 1 is RX1 TX2 Go On Go Off Hook Now Hook Now Emulate CO Connect one of the following to a Service Advisor platform ahandset to L1 RX1 TX1 on a Dual DS1 0 Test module see The Dual DS1 0 Test Module N1660A at a Glance page 1 2 e a headset to the Service Advisor platform see the manual shipped with the Service Advisor platform e a headset to the Service Advisor Undercradle see the manual shipped with the Undercradle Tap the Mode button on the main Dial Monitor Test screen to select the signaling direction The signaling mode indicates the circuit side on which to transmit the signal generated by the Service Advisor To enter a dial string you must select either Emulate CO or Emulate Cl 6 6 Using the Signaling Option 010 Entering a Dial String If you tap the Monitor button the Dial button becomes inactive grayed out Select Signaling Mode Emulate CO indicates that you want to emulate the central office and transmit the dial string to the customer s site E mulate Cl indicates that you want to emulate the customer s site and transmit the dial string to the central office 3 Tap the Dial function button on the right side of the screen 4 Tap the Channel button an
114. e page 8 11 TXSIGNal CBIT Reads the C bit of the transmitted signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 TXSIGNal DBIT Reads the D bit of the transmitted signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 TXSIGNal RING Reads the ring state of the transmitted signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 The return value is also dependent on the trunk type specified in the L 1 2 ROUT SIGN TRUN CH1 24 lt trunk type gt see page 8 66 TXSIGNal ONHOOK Reads the on hook state of the transmitted signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 The return value is also dependent on the trunk type specified in the L 1 2 ROUT SIGN TRUN CH1 24 lt trunk type gt see page 8 66 8 69 Dual DS1 0 SCPI Commands Signaling Fetch Commands Signaling Fetch Commands continued Command Description TXSIGNal OFFHOOK Reads the off hook state of the transmitted signal on the channel specified in the L 1 2 ROUT DMUX DROP lt channel number gt see page 8 11 The return value is also dependent on the trunk type specified in the L 1 2 ROUT SIGN TRUN CH1 24 lt trunk type gt see page 8 66 8 70 Dual DS1 0 SCPI Commands Signaling Fetch Co
115. e running a MTP or BTP test Parameter Range 5 and 300 seconds Default 5 L 1 2 SOURce SE QUence PATTern MODE lt ONCE CONTinuous gt Use this command to specify how often to run the selected BERT pattern sequence DT1 L 1 2 SOURce SEQUence PATTern MODE lt option gt Parameters Option Description ONCE Transmits the selected sequence once CONTinuous Runs the selected sequence continuously until the test is stopped Default CONTinuous Dual DS1 0 SCPI Commands L 1 2 SOURce SEQUence PATTern CTRL lt HOLD RESume ADVance gt L 1 2 SOU Rce SE QUence PATTern CTRL lt HOLD RESume ADVance gt Use this command to control the pattern sequence during a test DT1 L 1 2 SOURce SEQUence PATTern MODE lt option gt Parameters Option Description HOLD Pauses transmitting at the current pattern in the sequence Use this button when you want to observe a specific problem or to correct a problem and continue during a sequence RESume Resumes running through the selected BERT pattern sequence ADVance Advances the transmit pattern to skip a particular pattern Default not applicable 8 37 Dual DS1 0 SCPI Commands L 1 2 S OURce SEQUence PATTern CTRL lt HOLD RESume ADVance gt Performance Report Messages PRMs Commands This section describes the commands used to create and generate PRMs during a test PRM Command Structure Root Level 1 Level 2 DT1 L
116. e three tone slope test 5 37 T1 Testing Screen Reference AB CD Bits Tab AB CD Bits Tab The AB CD Bits tab lets you view the signaling bits set for all 24 channels on aT1line To display values for the different lines tap the Line button on the left side of the screen until the desired line appears You ll see the values appear for the selected line Test Detailed Signal Summary Results 000000 000000 000000 000000 000000 000000 000000 000000 Signaling 000000 000000 000000 000000 000000 000000 000000 000000 Modify Transmit Signaling Bits Screen The Modify Transmit Signaling Bits screen lets you modify the displayed bit patterns This screen appears when you tap the Modify TX Signaling Bits button on the AB CD Tab screen L1 Modify Transmit Signaling Bits OK Disabled 1100 Disabled Disabled Disabled E 1 2 4 5 6 Cancel 0001 Disabled 1100 Disabled 1100 Disabled 7 8 9 10 11 12 Select all Disabled Disabled Disabled Disabled Disabled 13 14 15 16 KLA 18 Deselect All I m 19 20 21 22 23 24 Channel buttons Tap the channel buttons for the channels you want to transmit signaling bits over You can select multiple channels and apply the same bit pattern to these selected channels 5 38 T1 Testing Screen Reference AB CD Bits Tab Bit pattern button Sets the bit pattern for all selected yellow channels OK button Saves the bit pattern settings Cancel button Returns you t
117. ed PRM continuously during a test The tester automatically transmits the selected PRM at one second intervals The PRM transmitted is determined by the DT1 L 1 2JSOUR PRM TYPE command see next command Default ONCE 8 40 Dual DS1 0 SCPI Commands L 1 2 SOURce PRM CTRL lt OFF ONCE CONTinuous gt Three Tone Slope Test Commands This section describes the commands used to run a three tone slope test PRM Command Structure Root Level 1 Level 2 DT 1 L 1 2 SOURce TONE FREQ1 8 lt frequency gt LEVel lt value gt DURation lt time gt Dual DS1 0 SCPI Commands L 1 2 SOURce TONE FREQ1 8 lt frequency gt L 1 2 SOURce TONE FREQ1 8 lt frequency gt Use this command to configure up to eight frequencies that you can use during a Three Tone Slope test The following example configures three different frequencies 404 1004 and 2804 Hertz Use this command to configure the frequencies and the L 1 2 SOURceTONE FREQ1 8 lt frequency gt command see next command to select the frequencies you want to use during the three tone slope test Example DT 1 L1 SOUR TONE FREQ1 404 DT 1 L1 SOUR TONE FREQ2 1004 DT 1 L1 SOUR TONE FREQ3 2804 Parameter Range 200 to 3950 measurement in Hertz Default 0 indicates you don t want to run a three tone slope test L 1 2 SOURce TONE LE Vel lt value gt Use this command to select the frequencies you want to
118. eflect software version 1 3 This version includes a Digital Data Service DDS tab the Pulse Mask Option 020 and new report options Check the Software Version You can check the software version number by pressing the Help button or by checking the Tablet Control tab of the Service Advisor Manager see the Servi ce Advisor Portable Test Tablet User s Manual vi Contents Contents About this Book iv About this Version vi Using the Dual DS1 0 Test Module 1 1 The Dual DS1 0 Test Module N1660A ata Glance 1 2 Connecting a Service Advisor to a T1 Circuit 1 4 Using the Dual DS1 0 Toolbar 1 5 T1 Analysis Screen 1 8 T1Testing Screen 1 9 BERT Sequences Screen 1 10 Dial Monitor Test Screen 1 11 Pulse Mask Screen 1 12 Viewing the Event Log 1 13 Using the Auto Setup Feature 1 14 Setting the Test Duration 1 16 Saving Printing and Deleting Reports 2 1 Printinga Report 2 2 Entering Test Header Information 2 4 Saving a Report 2 6 Changing Default FileNames 2 9 Viewing and Printing Saved Reports 2 11 Deleting Saved Files 2 15 Dual DS1 0 Sample Reports 2 16 T1 Analysis 3 1 The T1Analysis Screen 3 2 Viewing T1 Signal Test Results 3 5 vii Contents Testing T1 Circuits 4 1 TheT1Testing Screen 4 2 SettingUpaTlTest 4 3 Configuring BERT Settings 4 5 Configuring BERT Sequences 4 14 Configuring a Loop Code 4 24 Setting the Voice Frequency Audio Controls 4 28 Setting the Transmit Signaling Bits 4 33 R
119. er retains sole responsibility to ensure the Year 2000 readiness of its information technology and business environment The duration of this warranty extends through J anuary 31 2001 To the extent permitted by local law this warranty applies only to branded Agilent Products and not to products manufactured by others that may be sold or distributed by Agilent The warranty in this paragraph 6 applies only to Agilent Products shipped after J uly 01 1998 The remedies applicable to this paragraph 6 are those provided in paragraphs 1 2 and 3 7 Products purchased from Agilent outside the U S will receive the standard warranty in the country of purchase If end user customer moves such Products to another country where Agilent has Support presence then end user customer will receive the destination country standard warranty 8 Products purchased in the U S based on the U S list prices will only receive standard warranty in the U S except for Products with a global warranty A global warranty means that the Product will include the destination country s standard warranty in any country where the Product is moved provided that Agilent has Support presence in that country 9 TOTHE EXTENT ALLOWED BY LOCAL LAW THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY OR CONDITION WHETHER WRITTEN OR ORAL IS EXPRESSED OR IMPLIED AND AGILENT SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY SATISFACTORY Q
120. es See Configuring BERT Sequences page 4 14 for more information about using BERT sequences N1660A Dual DS1 0 Tester BERT BERT Seriene Bridge Tap gt 10 eA 00 00 gt RX2 aa Eee a T4 Analysis T1 Testing A El Auto Setup Start File Help Pattern Errors BPY Errors Frame Errors Pattern sequence and status Pattern control Eel Insert add Delete Hold Advance butto ns Sequence Pattern Pattern Pattern Pattern Pattern Line and test Konmuous me duration buttons po None pre Sa homn f5seconas iE a cove eee Configuration and status information Error injection buttons Loop code status Loop code buttons 1 10 Using the Dual DS1 0 Test M odule Dial M onitor Test Screen Dial Monitor Test Screen Tap the Test toolbar button and select the Dial Mon option to access the Dial Monitor screens Use the Dial Monitor option to enter monitor and display dialing information for T1 channels This option is available only when you purchase the Signaling Option 010 See Chapter 6 Using theSi gnali ng Opti on 010 for more information about using the Dial Monitor screens N1660A Dual DS1 0 Tester Dial Monitor Test 7 i 7 gt 10 gt RK 00 00 00 Signaling direction gt 20 erx ae T4 Analysis T1 Testing vent Log Auto Setup se Go On Go Off Hook Now Hook Now On hook off hook control buttons Signaling
121. est Commands 8 41 DDS Control Commands 8 43 Transmitter Loop Code Commands 8 47 Transmitter Alarm and Error Injection Commands 8 52 Transmitter Voice Frequency Signaling Commands 8 56 Data Capture Commands 8 60 Signaling Option 010 Commands 8 63 Using Query Commands to Retrieve Results 8 71 Contents 9 Specifications 9 1 DS1 0 Features 9 2 Tl and Fractional T1 Transmitter Specifications 9 4 T1 Receiver Specifications 9 7 T1 Measurements 9 8 Signaling Option 010 Characteristics 9 9 Pulse Mask Option 020 Characteristics 9 10 Ordering Accessories 9 10 Warranty amp Services Glossary Index The Dual DS1 0 Test Module N1660A ataGlance 1 2 Connecting a Service Advisor to a T1 Circuit 1 4 Using the Dual DS1 0 Toolbar 1 5 T1 Analysis Screen 1 8 T1Testing Screen 1 9 BERT Sequences Screen 1 10 Dial Monitor Test Screen 1 11 Pulse Mask Screen 1 12 Viewing the Event Log 1 13 Using the Auto Setup Feature 1 14 Setting the Test Duration 1 16 Using the Dual DS1 0 Test Module Using the Dual DS1 0 Test M odule The Dual DS1 0 Test Module N1660A ata Glance The Dual DS1 0 Test Module N1660A at a Glance The Dual DS1 0 Test module plugs into the Service Advisor Tablet N1610A or the Service Advisor Undercradle N1700A The module provides the capabilities to simultaneously monitor and or test two T1 lines Earth ground connection TX2 RX2 line 2 DS1 0 line connections
122. est module installed tap the Launch Remote SACompanion toolbar button Then tap the appropriate module button on the Product Remote Launch screen See Remotely Start and Stop a Module section in Chapter 4 of the Service Advisor Undercradle and SACompani on Software User s Manual N 1700 90000 When you see the T1 Analysis screen on your test set you can begin running T1 tests on the circuits See Using the Dual DS1 0 Toolbar page 1 5 1 4 Using the Dual DS1 0 Test M odule Using the Dual DS1 0 Toolbar Using the Dual DS1 0 Toolbar The DS1 0 toolbar contains several buttons each of which represents a particular function When you tap a button it turns yellow to indicate which test or function is active Note that the toolbar functions are available on any DS1 0 screen gt R1 gt RK 00 00 00 Ea us T1 Testing Test Auto Setup Start File Help T1 Analysis Tap this button to monitor two T1 circuits simultaneously See T1 Analysis page 3 1 for more information T1 Testing Tap this button to configure and run tests on one or two T1 circuits See Testing T1 Circuits page 4 1 for more information Test Tap this button to use one of the following options BERT Sequences lets you run either BTP or MTP BERT sequences or create and run user defined sequences See Confi guring BERT Sequences page 4 14 for more information e Dial Mon only available when you purchase Option 010 lets you enter mo
123. est on the current test pattern Click the button again to release the hold and continue with the next pattern in the sequence Advance Pattern Skips immediately to the next test pattern in the sequence Cursor movement keys Moves the cursor up and down through the list 5 20 T1 Testing Screen Reference BERT Pattern Sequences Controls Test Setup Status Section The Test Setup Status section lets you select the line to run the test on the test mode and duration displays the signal settings and displays test results Line to test on Signal settings Pattern duration settings Test results Line Lets you select the line you want to run the test on Run Mode Lets you select either continuous or once Continuous runs the selected sequence continuously until the test is stopped Oncetransmits the selected sequence once Run each pattern for Lets you specify the length of time to transmit each pattern in the sequence You can select between 5 and 300 seconds Framing The framing setting configured on the T1 Testing screen Coding The coding setting configured on the T1 Testing screen Pattern The pattern setting configured on the T1 Testing screen Loops The number of times the test pattern sequence has been run Failed The number of patterns that had at least one error of any type This Pass The length of time the current test pattern has been running Inject Error Buttons Pattern In
124. ffic Pulse mask A standardized range defining the boundaries of an ideal waveform shape QRSS Quasirandom sequence signal Results rls file Contains test measurement data SDLC Control Synchronous Data Link Setup stp file Contains test configuration information for setting up tests SJ SeeFDL SJ SLC 96 Subscriber loop carrier system 96 An AT amp T T1 framing format In the Service Advisor SLD 96 refers to any system that is TR SY 000008 compatible Smart Repeater A repeater that can be controlled remotely using 16 bit codes transmitted on the T1 synchronous Synchronized Occurring at the same rate or period sharing common timing with an outside timing source test set The hardware portion of the Service Advisor the Undercradle or Standalone unit timeslot A unique cyclic time interval typically providing a single channel timing See clock TTL Transistor to transistor logic A standard transmission level with a logic low of zero volts and a logic high of 5 volts UAS Unavailable seconds UI Unit interval The duration of one clock cycle or pulse period for a given rate V Volt Vac Volt alternating current Vdc Volt direct current VF Voice frequency V pk Volt peak Vp p Volt peak to peak Glossary 4 Index Notation button 4 40 3 Tone Slope button 4 31 display 5 36 setting with SCPI 8 41 tone duration 4 32 A AB CD Bits
125. g Off Tap the Capture Mode button to select the desired mode Selected Line and Channel captures dialing information for the displayed Line and Channel When you select this capture mode configure the Line and Channel you want to scan and monitor In Drop Insert test mode the lines are defined as follows RX1 from the Cl RX2 from the CO RX1 from the CO RX2 from the Cl Scan Monitor until hangup scans and captures information for all 24 channels on the selected line until a hangup is detected RX1 TX1 line selection indicates from CI to CO and RX2 TX2 indicates from CO to Cl Scan Monitor until timeout scans and captures information for all 24 channels on the selected line until the timeout has expired See the next step e Tap the Timeout button to select the amount of time you want the Service Advisor to hang online after the call setup digits are received Options are 5 sec 10 sec 15 sec 30 sec and 60 sec 6 16 Using the Signaling Option 010 View ing a Call Monitor Log File 2 Tap the Clear List button if information appears in the captured dialing information display area 3 Tap the Start toolbar button to begin monitoring the configured line and channels Note The Start button becomes a Stop button After you start monitoring tap the Stop button to stop monitoring the line 4 Use the arrow buttons to move through the list refer to the screen on the previous page The display are
126. he Inject button on the T1 Testing screen When you tap the Burst button a popup screen appears Enter the number of errors 1 through 9 999 you want to inject as a burst of errors 1E 1 through 1E 7 Injects errors into the BERT payload pattern at the selected rate For example 1 E 3is 1 x 10 3 or 1 bit error every 1 000 bits T1 Testing Screen Reference Loop Code Controls Loop Code Controls The Loop Codes area controls T1 loopback capabilities The Service Advisor can transmit several types of codes to activate and deactivate loopback at the far end equipment The Code button lets you select the type of loopback code you want to use Note that the following screen appears when you tap the Codes button on the Bert Sequences screen The Codes screen displayed from the T1 Testing screen does not have the OCU DP and None options L1 Select Loop Code NIU The following Codes screen appears when you have configured DDS BERT settings L1 Select Loop Code None Default Loop up and Loop down Settings The following table lists the default bit sequence for each loop code type Loop Code Definitions Loop Code Type Default Loop Up Code Default Loop Down Code CSU DS1 in band 1000 0 100 NIU DS1 in band 1100 0 1110 0 5 26 T1 Testing Screen Reference Loop Code Controls Loop Code Definitions continued Loop Code Type Default Loop Up Code Default Loop Down Code NIU4 DS1 in ba
127. i ng and Printing Saved Reports page 2 11 for more information 2 3 Saving Printing and Deleting Reports Entering Test Header Information Entering Test Header Information Oneach report there is a Test Information section that lists the operator name operator ID circuit ID and comments You can enter this information every time you run a test for a customer as a way to keep track of each customer s test results To enter test information before saving or printing reports complete these steps 1 Tap the File toolbar button and select the Reports option 2 Tap the Header Information button on the N1660A Reports screen 3 When the following screen appears tap the Up or Down arrow button to highlight each field and enter the appropriate information using the popup keypad This information appears on the report file Edit Report Header Information Field alue Operator Id 121212 Customer Name ABC Corporation Circuit Id 5551212 LINE TESTED e The Operator D and Customer Nameare saved on the Service Advisor This allows the information to be available to use with other test modules 2 4 Saving Printing and Deleting Reports Entering Test Header Information The Circuit ID and Comments are saved on the test module because they are module specific 4 Tap OK to save the header information and return to the N1660A Reports screen 5 When the N1660A Reports screen appears tap the Cre
128. ic set the Test Mode to Drop Insert see Selecting the Test Mode page 5 3 and use appropriate cabling 4 30 Testing T1 Circuits Setting the Voice Frequency Audio Controls 6 Tap the Source button to select the frequency of the tone you want to insert into the selected channel The Handset button inserts audio from the handset into the selected channel L2 Select TX Audio Source 404 Hz Tone 1000 Hz Tone 1004 Hz Tone 2804 Hz Tone eae eas The Key In Tone button lets you enter a frequency tone on a popup keypad The frequency can be between 200 and 3950 Hertz Enter Value 200 3950 Hz 600 Hz The 3 Tone Slope button measures the attenuation on the T1 line at three specific frequencies 404 1004 and 2804 Hertz The Clear button clears the displayed frequency Tap OK to save the frequency you entered and return to the T1 Testing screen e The Cancel button returns you to the VF Tab display and does not change the frequency setting 4 31 Testing T1 Circuits Setting the Voice Frequency Audio Controls 7 Inthe Insert Channd Audio section press the Level button and enter the level of the tone 35 to 3 dBm you want to transmit over the T1 line on the popup keypad Enter Value 35 3 dBm 30 dBm The Clear button clears the displayed level Tap OK to save your entry and return to the T1 Testing screen The Cancel button returns you to VF Tab display
129. ications Specifications DS1 0 Features DS1 0 Features Auto Configure Automatic alignment to framing line code and test patterns standard mode tests all patterns normal and inverted detailed mode tests only standard BERT patterns Event Log Captures up to 4096 events from RX1 and or RX2 with date and time stamp e stores LOS AIS Yellow Frame Loss Pattern Loss Density Violations and CDI alarms e stores Logic BPV Frame Errors and CRC errors e stores test start or stop frame type change pattern type change LBO change B8ZS change and loopcodes detected events data stored with 1 second resolution Test Period Continuous 15 min 30 min 1 hour 3 hours 6 hours 12 hours 1 day 3 days 7 days or user programmable 1 minute to 7 days ASCII Reports Can print or save Dual Monitor T1 Testing Signaling E vent Log or BERT Sequences during a test or after you have stopped a test Reports are 75 columns wide and you can enter header information Operator ID Customer Name Circuit ID Comments for report Data and File Management Local store last configuration restore last configuration and reset default configuration remote download program Flash ROM updates Remote Control SCP command line interface and remote graphical user interface GUI for PC Connectors for Module L1 and L2 dual bantam handset RJ 11 ground lug Module soft LEDs L1 and L2 one set for each Status signal frame
130. iguration settings are saved in memory To shut down the tester properly press the File toolbar button and select the Exit menu option Note If you power off your tester without using the File toolbar button and the Exit option all your configuration settings are reset to their default settings 4 44 Tl Testing Screen 5 2 Line Configuration and Status 5 3 Transmitter Setup Controls 5 7 BERT Patterns 5 8 BERT Pattern Sequences Controls 5 19 Error Alarm Injection 5 24 Loop CodeControls 5 26 Test Summary Tab 5 29 Detailed Results Tab 5 31 Signal Tab 5 34 VF Tab 5 36 AB CD Bits Tab 5 38 PRMsTab 5 40 DDSTab 5 41 T1 Testing Screen Reference T1 Testing Screen Reference T1 Testing Screen T1 Testing Screen This chapter defines all the configuration settings that appear on the T1 Testing screen and the associated tab screens Use this chapter in conjunction with the procedures in Chapter 4 Testing T1 Circuits to configure and run a T1 test N1660A Dual DS1 0 Tester Ne 00 00 00 Continuous Auto Setup Start AB CD B82s ESF QRSS 1536 Kb INT 0 dB C Coding Framing Pattern Fract1 Clocking Build Out Pattern Single None Loop Loop M Mute i Type Rate Code Up Down 5 2 T1 Testing Screen Reference Line Configuration and Status Line Configuration and Status This section defines the settings used to configure the T1 test mode the line you re testing and the termination mode RX In
131. ild out gt DT1 SOURce TIMEtest lt duration gt 8 20 Dual DS1 0 SCPI Commands L 1 2 SOURce M ODE lt test mode gt L 1 2 SOURce MODE lt test mode gt This command lets you configure the test mode see Setting Up a T1 Test page 4 3 DT1 L 1 2 SOURce MODE lt test mode gt Parameters Test Mode Description NORMal T1 Normal mode The T1 transmit signal is generated internally according to the selected framing payload line code and so on The receiver is configured for the same settings allowing for BER testing the received pattern is compared to the transmitted pattern CSU Channel Service Unit mode The Service Advisor performs as a CSU on the span responding to all valid loop up and loop down codes DI Drop amp Insert mode In this mode single or multiple timeslots are dropped and inserted internally the TX clock is slaved to the RX clock channels that are not being used for testing are passed through uninterrupted and TX and RX paths are crossed over RX2 to TX1 and RX1 to TX2 INTLoop Internal Loop mode The Service Advisor internally loops the T1 transmit TX signal back to the T1 receive RX signal at the digital level EXTLoop External Loop mode The receive T1 signal is looped back to the transmitter The receive data is regenerated and transmitted to the span Full T1 monitor testing can be performed in this mode Default NORMal Dual DS1 0 S
132. ime you print another report This ensures that each report is saved with a unique filename and new reports do not overwrite existing reports 2 7 Saving Printing and Deleting Reports Saving a Report 6 Tap the N1660A button to save the file in the Dual DS1 0 Test module or tap the PC Card button to save the file in the Flash Memory Card Note If the PC Card button is grayed out there is no flash memory card installed in your tester 7 Tap the Save button to save the file or tap the Cancel button to avoid saving the file and return to the Report screen If a file with the selected name already exists the following screen appears Tap Yes to overwrite the existing file or No to enter another filename Return to step 5 or 6 to enter anew filename N1660A testmar already exists Do you __ wish to replace it 8 Tap the Print or Close button when the Report screen appears If you selected the Print option make sure you have a printer connected to the platform you are using See Vi ewi ng and Printing Saved Reports page 2 11 for more information 9 Tap the Close button on the N1660A Reports screen to return to the main Dual DS1 0 Tester screen 2 8 Saving Printing and Deleting Reports Changing Default File Names Changing Default F ile Names You can enter and change default names for the different types of reports you can save To do so follow these steps 1 Tap the File toolbar butto
133. installed in slot A your command would look like DT1_A L1 SOUR DATA PATT ONES The following illustration marks slot A and B in a Service Advisor Tablet Back Front 8 3 Dual DS1 0 SCPI Commands SCPI Command Syntax The following illustration marks slot A and B in a Service Advisor Undercradle which is attached to an Internet Advisor J 2300C D Root Nodes The following root nodes are supported by the Dual DS1 0 Test module Root Node Description ROUTe Lets you select the channels you want to use for drop and insert mode and BER testing SOURce Lets you set the transmitter functions for the test module SENSe Lets you configure the audio source you want to output to INITiate Starts running a test FETCh Lets you retrieve test results and configured settings from the Dual DS1 0 Test module output queue ABORt Stops a test and freezes the test results 8 4 Dual DS1 0 SCPI Commands SCPI Command Syntax Long Form and Short Form SCPI commands have both a long and short version for example SOURCE and SOUR The Tablet responds to either version but will not respond to variations of either version such as SOURC The SCPI interface does not differentiate between upper case and lower case letters but only the long or short form of a command is valid Notice the examples in the following table SCPI Command Syntax Correct
134. ion describes the commands used to configure the signaling option 010 Signaling Option Commands Root Level 1 Level 2 DT1 L 1 2 SOURce SIGNal DIAL Level 3 SEQUence lt dial string gt DT1 MEMory SIGNal STORe NUM1 9 lt dial string gt DT1 L 1 2 ROUTe SIGNal TRUNk CH1 24 lt trunk type gt APPLy DT1 L 1 2 SENSe SIGNal MODE lt EMUL_C0 EMUL_CI MONitor gt SCAN TYPE lt mode gt TlMEout lt value gt 8 63 Dual DS1 0 SCPI Commands L 1 2 SOURce SIGNal SEQUence lt dial string gt L 1 2 SOURce SIGNal SE QUence lt dial string gt Use this command to enter a dial string see Entering a Dial String page 6 5 The components of a dial string are described below You must begin each dial string with dial code see below DT1 L1 SOUR SIGN SEQU DT GoOffHook 01 1 Dial M ode Function Digits Components Dial Mode DT MF Digit qualifier applies to all digits following until changed Always enclosed in parentheses You can enter a dial mode more than once in a single dial sequence If you enter only a dial mode with this command no action occurs you must enter digits with the dial mode Digits 0 9 and are undefined in MF dial mode You must enter a dial mode before you enter a digit Pause Code comma Function codes Always enclose a function code in square brackets F
135. is quality system STD received ISO 9001 certification no 6969 from National Quality Assurance NQA on August 30 1995 ISO 9001 REGISTERED COMPANY Certificate No 6969 Agilent Technologies Service Test Division 2 Robbins Road Westford Massachusetts 01886 USA Safety Notices Observe the following safety precautions whenever you operate the Dual DS1 0 Test module Failure to comply with these and other specific warnings and cautions in this manual is a violation of Agilent Technologies safety standards of design manufacturing and intended use of the test module Agilent Technologies assumes no liability for the operator s failure to comply with these precautions Product Damage Danger Do not use this product if it shows visible damage fails to perform has been stored in unfavorable conditions or has been Subject to severe transportation stresses M ake the product inoperative and secure it against any unintended operation Contact your Agilent Technologies representative for assistance Explosion Hazard Danger Do not operate the instrument in the presence of flammable gases or fumes Electric Shock Hazard Danger To avoid the possibility of severe injury or death observe the following precautions when using the Dual DS1 0 Test module Do not remove the system covers and do not perform electrical tests if there are signs of shipping damage to the outer enclosure
136. ived positive voltage pulse NEGative Indicates the test set will evaluate a received negative voltage pulse POSNEG Indicates the test set will evaluate a received positive and negative voltage pulse Default POSitive 8 18 Dual DS1 0 SCPI Commands L 1 2 SENSe PMASk TOLerance lt 0 3 6 gt L 1 2 SENSe PMASK TOLerance lt 0 3 6 gt Use this command to select a 0 3 or 6 adjustment to the selected pulse mask specification DT1 L 1 2 SENSe PMASk TOLerance lt 0 3 6 gt Parameters Tolerance Description 0 The selected mask specification is not adjusted 3 The selected mask specification is offset 3 percent of the peak amplitude 6 The selected mask specification is offset 6 percent of the peak amplitude Default 0 L 1 2 SENSe PMASk ACTion lt ON OFF gt Use this command to turn the pulse mask test ON and off Default OFF 8 19 Dual DS1 0 SCPI Commands L 1 2 SENSe PMASK ACTion lt ON OFF gt Transmitter Line Configuration Commands This section describes the SOURce commands which configure the transmitter parameters for each T1 line DT1 L 1 2 SOURce Command Structure Root Level 1 DT1 L 1 2 SOURce MODE lt test mode gt FRAMe lt framing format gt CODE lt line coding gt CLOCk lt clock source gt TERMination lt type of termination gt MULTiplier lt NX56 NX64 gt LBO lt line bu
137. jects logic errors into the BERT payload pattern BPV Injects bipolar violations into the BERT payload pattern A BPVisa pulse that breaks the alternating polarity rule T1 Testing Screen Reference BERT Pattern Sequences Controls Frame Injects framing bit errors into the BERT payload pattern Note that this error is inserted only into those F bits that are used for framing CRC Injects CRC cyclic redundancy checksum errors into the BERT payload pattern Loop Codes Buttons See Loop Code Controls page 5 26 BTP Patterns A BTP BER test transmits the following patterns which are useful for detecting bridge taps and other impairments on the T1 circuit Patterns Transmitted During the BTP Transmit Order Pattern Transmitted Bits F frame bit 1 All Ones F1111 2 1 1 F0101 3 1 3 F0100 4 1 5 F0100 00 5 1 6 F0100 000 6 1 7 F0100 0000 7 2 8 F1100 0000 00 8 2 9 F1100 0000 000 9 2 10 F1100 0000 0000 10 2 11 F1100 0000 0000 0 11 2 12 F1100 0000 0000 00 12 2 13 F1100 0000 0000 000 13 2 14 F1100 0000 0000 0000 14 3 in 18 F1101 0000 0000 0000 00 5 22 T1 Testing Screen Reference BERT Pattern Sequences Controls Patterns Transmitted During the BTP continued Transmit Order Pattern Transmitted Bits F frame bit 15 3 in 19 F1100 1000 0000 0000 000 16 3 in 20 F1100 1000 0000 0000 0000 17 3 in 21 F0100 0100 0000 0000 0000 1 18 3 in 22 F0100
138. l DS1 0 Test Module by looping back the far end of the T1 circuit Loopback testing enables you to analyze a T1 span from a single location The Service Advisor can transmit loopback control codes to a far end loopback device such as a network interface unit NIU or channel service unit CSU therefore hardware looping at the far end is not necessary See Confi guring a Loop Code page 4 24 You can perform an end to end BER test of the T1 circuit using a Service Advisor and aT1 signal source or another Service Advisor each connected to an opposite end of the circuit The following procedure explains how to use the Pattern button on the T1 Testing screen to configure the BERT payload pattern you want to send over specified T1 lines 1 Tap the Pattern button in the Transmitter Setup section of the T1 Testing screen Current BERT pattern setting BERT Pattern Setup QRSS Category Select a Pattern to BERT Auto Detect Invert Pattern m ee BTS 4 5 Testing T1 Circuits Configuring BERT Settings To select a specific pattern press the Standard Octet User Programmable Density or DDS button on the BERT Pattern Setup screen Tapping one of these buttons displays the settings assigned to each category See BERT Patterns page 5 8 for more information about the screens displayed with each category button Tap a pattern button e If you selected the User Programmable category button press one of the USERn or
139. l DS1 0 Tester BERT Sequences User BERT1 gt 10 Rx BERT 00 00 00 T gt Rx2 ex S Continuous H5 T1 Analysis T1 Testing Auto Setup Start File Help Stat Pattern Errors BPY Errors Pattern sequence Ke Add Delete Hold advance Lets you select BTP sequence Pace Pattern Pattern Pattern Pattern you sele MTP or user defined pattern sequence Top of list Next item Lets you add insert or delete a pattern in the Na Last item sequence 4 Tap the Add Pattern button 4 20 Testing T1 Circuits Configuring BERT Sequences 5 When the BERT Pattern Setup screen appears select a BERT pattern See Configuring BERT Settings page 4 5 for information about selecting a BERT pattern You ll see the selected BERT patterns appear in the pattern sequence list 6 Continue to add BERT patterns until you have all the patterns you want in your sequence Use the Insert Pattern button to insert a pattern above the entry where the cursor is positioned Use the Delete Pattern to delete the pattern where the cursor is positioned Use the cursor movement keys to move the cursor up and down through the list 7 Configure the other User BERT sequences by repeating steps 3 through 6 8 Tap the Line button and select the T1 line RX1 TX1 or RX2 TX2 you want to run the BER test on RXI TXI o 9 To set the pattern duration Tap the Run Mode button to select either conti nuous o
140. l level indicators RX1 and RX2 Status Results The RX1 RX2 Status sections of the T1 Analysis screen contain signal indicators that show the status of the input signals on the T1 line s being tested with the Dual DS1 0 test module The lower half of these sections show the coding framing and BERT pattern detected on the receive T1 signal as well as the number of coding framing BERT pattern and CRC errors detected while the lines were being monitored RX1 Status History indicator Number of seconds in which this type of error occurred Coding framing BERT Number of errors detected pattern and CRC configuration Terminated RX1 Input Not Looped RX termination mode Loop status The signal indicators in the left column are history indicators that light to show a previous occurrence of the error condition The following table shows the conditions that cause an indicator in this section to turn ON and describes the counts that appear in the Alarm Errored seconds column 3 5 T1 Analysis View ing T1 Signal Test Results The following table describes each indicator and what the Alarm Seconds number means Signal Status Indicators Indicator Description RX Pulses Turns green to indicate the presence of a T1 signal at the RX jack Frame Sync Turns green to indicate that the Service Advisor has synchronized to the framing format of the received signal Pattern S
141. l valid 71 102 Pulse mask as defined by ANSI specification T1 102 71 403 Pulse mask as defined by ANSI specification T1 403 G 703 Pulse mask as defined by the proposed update to ITU T recommendation G 703 DS3 Electrical Interface Spec T1X1 4 95 013 PUB 62411 Pulse mask as defined by the Bellcore specification 62411 7 3 Using the Pulse M ask Option 020 Using the Pulse Mask Screen 7 Tap the Tolerance button to select a 0 3 or 6 adjustment to the selected pulse mask specification 0 The selected mask specification is not adjusted 3 The selected mask specification is offset 3 percent of the peak amplitude see figure 6 The selected mask specification is offset 6 percent of the peak amplitude see figure Pulse Mask Tolerance Adjustment X of peak amplitude 8 Tap OK to save the settings and return to the previous screen If you tap the Cancel button no settings are changed and you return to the Pulse Mask screen 9 Tap the Start toolbar button to start a pulse mask test 7 4 Using the Pulse M ask Option 020 Pulse Mask Waveform Pulse Mask Waveform The following sample screen shows the shape of a received DS1 pulse in comparison with the selected T 1 403 pulse mask with O tolerance adjustment The receive pulse fits within the selected mask which is indicated by the Pass status Overshoot Amplitude Undershoot IN1660A Dual DS1 0 Tester Pulse Mask Pu
142. ling bit control AB or ABCD signaling bits are user programmable for all 24 channels BERT patterns Standard QRSS Ones Zeros 1 1 1 7 3 24 63 511 2047 2 15 1 2 20 1 2 23 1 Live Octet Oct 52 to Oct 55 Oct 72 Oct 96 Oct 120 Daly 55 Net 55 User programmable four user defined bit patterns 3 to 16 bits and four user defined byte patterns up to 1024 bytes Density 1 3 1 5 1 6 2 8 2 14 3 18 3 23 all patterns can be inverted DDS DDS1 through DDS6 BERT sequences Types of patterns Bridge tap BTP Multipattern MTP User 1 to 3 Programmable parameters Line RX1 TX2 RX2 TX2 or RX1 TX2 in Drop and Insert mode Run Mode once or continuous Run Pattern for 5 to 300 seconds 1 second step Sequence controls hold pattern or advance pattern Sequence Results Per Pattern Status Running In Sync total pattern errors total BPV errors total frame errors total CRC errors Overall number of loops number of failed loops current pass number DDS Rate User Channel DSOA rates 2400 4800 9600 19200 28800 38400 56000 64000 Kb s DSOB rates user channel 2400 1 20 user 4800 1 10 user 9600 1 5 user 19200 1 2 user Kb s Specifications T1 and Fractional T1 Transmitter Specifications PRM Generation Runs in Normal Internal and Drop amp lnsert modes Can select the following events G1 CRC error event 1 G2 CRC event gt 1 but lt 5 G3 CRC event gt 5 but lt 10 G4
143. log button 1 5 saving 2 6 viewing 1 13 exit 1 7 F fall time 7 6 FDL loop codes 5 26 fetch alarm status 8 76 auto test state 8 73 channel data 8 73 clock slip ratio 8 80 clock slips 8 80 commands 8 71 8 93 DDS information 8 92 errors 8 78 firmware version 8 73 frame slips 8 80 Index fetch conti nued frequency 8 75 loop status 8 82 option setting mask 8 74 PRM counts 8 86 pulse mask information 8 88 remaining test time 8 73 round trip delay 8 73 serial number 8 73 signal characteristics 8 75 signaling bits 8 85 status 8 72 VF signaling measurements 8 84 8 85 VF tone 8 84 file button 1 6 menu 1 6 report option 2 2 firmware displaying version 1 7 frame loss 3 6 sync 3 6 frame bit overwrite 4 25 SCPI command 8 49 frame format D4 8 22 defined 5 7 ESF 8 22 selecting with SCPI 8 22 SLC 96 8 22 framing 3 7 FT1 signal rate selecting with SCPI 8 25 function tabs 5 29 5 41 H header for report 2 4 help option 1 7 Index 3 Index imbalance ratio 7 6 inband loop code 8 48 Inject button 4 35 input button T1 Monitor window 3 3 insert channel audio section 4 30 selecting with SCPI 8 11 Invert Patterns button 4 6 K Key In Tone button 4 31 L LBO 5 19 line coding 5 7 coding using SCPI 8 22 loop code 8 48 selecting 4 3 line build out 5 19 selecting with SCPI 8 25 log call monitor 6 15 loop status 4 24 loopback T1 5 26 test 4 5 loop code command
144. lots are dropped and inserted internally the TX clock is slaved to the RX clock channels that are not being used for testing are passed through uninterrupted and TX and RX paths are crossed over RX2 to TX1 and RX1 to TX2 Notes When using this mode the back side of the selected channel is busied out to prevent the CO switch or Cl PBX from making a call on the dropped channel to the front side If the Signaling Direction is set to Signaling to CI Emulate Exchange in the Dial Monitor function the channel transmitting back to the CO is busied out to prevent the CO switch from trying to route a call to the out of service channel The same applies to the other direction See Monitoring Channel Status page 6 3 Selecting the RX Input When you tap the RX Input button the following popup appears L1 Select RX Input Mode Terminated Terminated The receive signal is terminated to 100 ohms and a full span automatic equalizer ALBO is provided to compensate for cable loss This selection is typically used for out of service testing Monitor J ack The receive signal is a DSX 1 monitor level signal This selection is typically used to monitor a signal through a DSX monitor jack that is resistor isolated from the span Bridged The receive signal is bridged to one side of the span The Service Advisor is set to a high impedance state greater than 1000 ohms This selection is typically used to monitor in service spans
145. lowing DT1 L 1 2 FETCh General Tester Commands Command Description RTDELAY Returns the round trip delay value in microseconds CHANDATA Returns the eight bit data of the drop channel The module determines which channel to query by looking at the channel specified in the L 1 2 ROUT DMUX DROP lt 1 24 gt command see page 8 11 SERialnum Returns the module s serial number FIRMware Returns the 860 firmware version AUTOtest STATe Returns either a 1 or 0 1 auto evaluate is in progress 0 auto evaluate complete TIMEtest REMain Returns the amount of run time left in seconds for the test that is currently running You do not specify a line L 1 2 with the these commands 8 73 Dual DS1 0 SCPI Commands L 1 2 FETCh OPTion L 1 2 FETCh OPTion This command returns the software option setting mask The value is returned only when the value is masked and with the following e OPTION SIGNAL _SEQUENCE 0x00000001 e OPTION _PMASK 0x00000004 L 1 2 FETCh BOC DATA This command returns the sync status code detected if the data capture mode is enabled See L 1 2 SOURceBOC DATA lt sync status code gt page 8 61 for a list of codes L 1 2 FETCh DATACapture STATe This command returns the status of the data capture process 1 capture process in progress 0 capture complete Dual DS1 0 SCPI Commands L 1 2 FETCh SIG
146. lse Mask L1 T1 403 0 Pulse Mask Setup Status Pass Pass Amplitude mv 2982 2975 Rise Time ns Fall Time ns Width ns Normalized Amplitude Overshoot Undershoot 10 7 11 0 0 0 Imbalance Ratio 0 4 Time Unit Intervals start N1610A Service Adv N16608 Dual DS51 0 oS 1 37 PM 7 5 Using the Pulse M ask Option 020 Pulse Mask Measurements The pulse mask measurement section of the screen shows the DS1 pulse mask measurements based on the shape of a received DS1 pulse binary 1 Status Pass Pass Amplitude mv 2982 2975 Rise Time ns 74 70 Fall Time ns Width ns Overshoot Undershoot 10 7 11 0 Imbalance Ratio Status Indicates whether the receive signal falls within the selected mask Amplitude mv Indicates the peak of the pulse Rise Time ns Indicates the calculated rise time of the received pulse in nanoseconds Fall Time ns Indicates the calculated fall time of the received pulse in nanoseconds Width ns Indicates the width of the received pulse in nanoseconds Overshoot Indicates the percent that the pulse measured out of range Undershoot The base to negative peak value divided by pulse amplitude Imbalance Ratio Indicates the ratio of the amplitude of the positive received pulse and the amplitude of the negative received pulse meets the specifications of the selected pulse mask N
147. lume for the audio sent to the Service Advisor s platform speaker or the headset connected to the Service Advisor platform Insert Channel Audio TX1 TX2 Use this portion of the screen to Select the channel to insert tone or audio into e Select the transmit audio source and the level of the tone you want to send over the selected channel Enter the amount of time you want the tone sent over the line for the Three Tone Slope test Select the AB CD signaling bits you want to insert into the selected channel Testing T1 Circuits Setting the Voice Frequency Audio Controls Configuring the Drop and Insert Channel Settings To configure the drop and insert channel settings follow these steps 1 Tap the VF tab on the T1 Testing screen Drop channel buttons Insert channel buttons N1660A Dual DS1 0 Tester T1 Testing Bridge Tap aosta Rx 00 00 00 E 5 T1 Analysis Test Event Log Auto Setup Start Test Detailed e ABICD suman resus Sem one Ps oos i jRxi Tx1 Line button B E Po Terminated _ Z a p L ate Pronese e 0 dBm foon 0o00 fasam Faseconds el AMI ESF NONE 1536 Kb INT OdB s Coding Framing Pattern FracT1 Clocking Build Out Pattern Single None Loop Loop M Mute Type Rate Code Up Down Adjusts or mutes audio sent to Service Advisor platform Tap the Line button on the main screen to display the line RX1 TX1 or RX2 TX
148. ming and Sending Stored Numbers 6 13 Viewing a Call Monitor Log File 6 15 Using the Signaling Option 010 Using the Signaling Option 010 Activating the Signaling Option Activating the Signaling Option If you purchased the Signaling Option 010 for your tester follow the procedure described in the user s manual supplement N1660 90001 shipped with your module This option lets you use the Dial Monitor option to enter monitor and display dialing information for T1 channels Using the Signaling Option 010 Monitoring Channel Status Monitoring Channel Status To access the main Dial Monitor screen tap the Test toolbar button and select the Dial Mon option The following screen appears Dial M onitor function Line being monitored buttons N1660A Dual DS1 0 Tester Dial 7 Monitor Test Signal status Program Stored Numbers On hook off hook control buttons Emulation mode olo 010 0 tot o 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 00 Channel number Trunk type Volume control for Service Advisor s speaker Signaling bits display The AB CD Decode option lets you view the signaling bits of the 24 channels on the selected receive T1 line in both directions You use the monitor channel status option to observe on hook and off hook status e observe ringing detection observe ABCD signaling bit status
149. minimum ones density for a DSO DDS circuit and stresses clock recovery and repeater equalization circuits DDS4 is actually a one and seven 1 7 or one in eight 1 8 pattern a single binary 1 and seven Os However when DDS patterns are run at DS1 speeds most test sets do not frame align the pattern and frame bits may end up in the middle of an octet To ensure that frame bits fall only on octet boundaries run a T1 BER test with the 1 7 pattern Use Frac T1 or Drop Insert test mode to select the DDS channel and be sure to observe proper precautions on live T1 circuits Note When running DDS long patterns such as DDS5 at low speed subrates for example 2 4 or 4 8 Kb s it takes a while for the test set to sync on the pattern T1 Testing Screen Reference Clocking Source DDS Test Pattern Descriptions continued Pattern DDS5 Description A combination of DDS stress patterns 1 through 4 This pattern which runs safely on all DS1 facilities simulates the transition from IDLE to DATA mode on DDS circuits It can be used as a work around for the DS1 two minute limit on an all ones pattern It is useful for detecting marginal equipment in multipoint applications and stressing power supplies and ABLO circuits The pattern is 800 bytes DDS1 100 bytes FF and 100 bytes 00 four times 800 bytes DDS2 100 bytes 7E and 100 bytes 00 four times 200 bytes DDS3 repeating 32 pattern 200 bytes
150. mmands Using Query Commands to Retrieve Results You can enter all the SCPI commands except INIT and ABORT as query commands A query command looks like the following DT1 SOUR TEST STAT The FETC root nodeis the most commonly used query command and is followed by one or more level nodes all separated by a colon Notice the question mark after the last level node STAT all query or FETC commands end with a question mark In general query commands instruct a test module to retrieve the current result error or alarm information specified by the parameter and display the result on the PC For example the command DT1 L1 FETC AUTO STAT returns either a 0 to indicate the auto evaluate has completed or a 1 to indicate the auto evaluate is still in progress 8 71 Dual DS1 0 SCPI Commands Querying Line Status Information Querying Line Status Information Use the FETCh commands described in this section to query the characteristics of the T1 signal L 1 2 FETCh STAT us lt characteri sti c gt T1 Line Characteristics Characteristic Fetches status of RXPULSE Pulse signal FRMSYNC Frame synchronization PATSYNC Pattern synchronization Dual DS1 0 SCPI Commands Querying Tester Information Querying Tester Information These commands let you query information about the Dual DS1 0 Test module When you enter any of the commands listed below make sure to begin with the fol
151. mv 2 2982 2975 9 Rise Time ns E lt 3 Fall Time ns a 3 Width ns 2 Overshoot Undershoot 10 7 11 0 Ts P Imbalance Ratio Time Unit Intervals start _N1610A Service Adv 16604 Duat 051 0 oS 1 37 PM Pulse mask measurements 7 2 Using the Pulse M ask Option 020 Using the Pulse Mask Screen To use the Pulse Mask screen follow these steps 1 For more reliable test results tap the T1 Testing toolbar button Tap the Framing button and select None Then tap the Pattern button and select the Standard 1 7 pattern see Chapter 4 for more information Tap the Test toolbar button and select the Pulse Mask option Tap the Pulse Mask Setup button on the Pulse Mask screen Pulse Mask Test Setup Li Positive Line Acquire 71 102 0 Template Tolerance ont Tap the Line button to select L1 or L2 to indicate which line you want to run the pulse mask test on Tap the Acquire button to select the Positive Negative or Positive amp Negati ve voltage pulse The value you select shown in the button s display field determines whether the test set evaluates a received positive voltage pulse Positive negative voltage pulse Negative or both Positive amp Negative Tap the Template button to select the pulse mask to be used for the pulse mask test The available choices are None No mask is used Mask fit and imbalance results are not applicable but other results are stil
152. n 5 Tap the Select Another Sequence button Bridge Tap User BERT1 User BERT2 User BERT3 User BERT4 f Cancel 4 16 Testing T1 Circuits Configuring BERT Sequences 6 Tap either the Bridge Tap or the Multi Pattern sequence button See BTP Patterns page 5 22 and MTP Patterns page 5 23 The Cancel button returns you to the BERT Sequences screen 7 Tap the Code button and select a loop code on the displayed screen L1 Select Loop Code NIU If you configured a DDS BERT pattern see Configuring a Digital Data Service DDS BER Test page 4 11 you see the following loop codes L1 Select Loop Code None 5 EE You ll see the loop code you selected in the Code button s display area See Default Loop up and Loop down Setti ngs page 5 26 for a definition of the loop codes 8 Tap the Start toolbar button to start a test Testing T1 Circuits Configuring BERT Sequences 9 Observe the pattern status information Fj N1660A Dual DS1 0 Tester BERT Sequences Bridge Tap Event Log Data IN SYNC IN SYNC IN SYNC IN SYNC IN SYNC IN SYNC IN SYNC 10 When the test is running you can use the following buttons Advance Pattern FDL Payload Loop Up Loop Down Code e Hold Pattern button pauses the current pattern Use this button when you want to observe specific problems Advance Pattern button skips to a particular pattern in the sequence
153. n and select the Reports option 2 Tap the Default Names button on the N1660A Reports screen V iew Print Delete 3 When the Edit Default Report File Names screen appears use the Up and Down arrow buttons to select the type of report information you want to save Default filename Edit Default Report File Names Report Default File Name Saves filenames T1 Analysis T1 Testing gt Dial Monitor dialmon Event Log BERT Sequences Pulse Mask Scroll buttons Ctrl Win Alt Space tTilljelo 2 9 Saving Printing and Deleting Reports Changing Default File Names 4 Enter the desired file name or enter default file names for one or all reports Then tap OK to save the file names and return to the N1660A Reports screen Note The system generates a unique default filename every time you access the Saved Reports screen This avoids overwriting existing saved reports 5 Tap the Close button on the N1660A Reports screen to return to the main Dual DS1 0 Tester screen Or tap the Create button to save a report see Saving a Report page 2 6 2 10 Saving Printing and Deleting Reports View ing and Printing Saved Reports Viewing and Printing Saved Reports You can view and print reports saved in the Dual DS1 0 Test module or Flash Card To print reports you must have an HP Laser et printer connected to your Service Advisor platform Connecting a Printer to a Service Advi
154. nd 1100 1110 NIU6 DS1 in band 1000 00 1100 00 V54 DSO in band selected FT1 channels Standard ITU T V 54 loopback This selection uses in band Note that these loop codes operate on Signaling to activate deactivate CSU DSU loopback as specified in ANSI 71 403 Annex B OCU DP DSO in band When you choose this setting if the OCU DP office channel unit dataport receives a CSU loop code it reverses the sealing current of the line causing a loopback of the CSU at the customer premises OCUALT Alternating loopback of the office channel unit OCU which is useful for isolating the central office from the local loop DSUALT Alternating loopback of the digital service unit DSU CSUDP Latching loopback of the CSU CSUALT Alternating loopback of the channel service unit CSU DSODP Loopback of the DSO dataport This type of loopback is useful for isolating a hub office from an end office FDL Line out of band 0000 1110 11111111 0011 1000 1111 1111 FDL Payload out of band 0001 0100 1111 1111 0011 0010 1111 1111 FDL Network out of band 0001 0010 1111 1111 0010 0100 1111 1111 LCI1 user programmable in band 1100 1100 LCI2 user programmable in band 00111100 00111100 LCI3 user programmable in band 1010 010 1010 1010 1010 010 1010 1010 LC14 user programmable in band 1111 1111 0000 0000 1111 1111 0000 0000 LCO1 user programmabl
155. nitor and display dialing information for T1 channels See Di al Moni tor Test Screen page 1 11 for more information e Pulse Mask only available when you purchase Option 020 lets you run a Pulse Mask test and view the resulting pulse mask waveform See Pulse Mask Screen page 1 12 for more information Event Log Tap this button to view the event log See Vi ewing the Event Log page 1 13 for more information Auto Setup Tap this button if you want the tester to configure its transmitter to the receiver s line configuration See Using the Auto Setup Feature page 1 14 for more information 1 5 Using the Dual DS1 0 Test M odule Using the Dual DS1 0 Toolbar Start Stop Tap this button to start the selected test this button turns into a Stop button Tap Stop to freeze error counters alarm indicators and history counters and halt a test This button also displays the amount of time a test has been running and the amount of time left before the test is stopped or indicates you have selected the continuous test time Time is displayed using the day hours minutes seconds format Tapping the Start button starts a new test and resets the elapsed test time to zero Elapsed test time Stop Amount of time left or continuous File Provides access to DS1 0 control and file management functions File Menu Options Option Description Reports Lets you save view print and delete test results or an event log
156. nt Technologies Copyright 2000 Agilent Technologies Inc All rights reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws Publication part number N1660 90000 Version 3 0 May 2000 Printed in USA Warranty The information contained in this document is subject to change without notice Agilent Technologies makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Agilent Technologies shall not be liable for errors contained herein or for incidental or consequential damage in connection with the furnishing performance or use of this material Warning Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Trademark Credits Windows and M S DOS are U S registered trademarks of Microsoft Corporation All other trademarks are the property of their respective owners ISO Certification Agilent Technologies Service Test Division STD is an International Standards Organization ISO 9001 registered company recognizing that the quality system operated by STD meets the requirements established in accordance with ISO 9001 STD manufactures test equipment in strict compliance with th
157. o change Enter a 3 to 24 bit pattern using the displayed popup screen If you pressed a USE Rn button use the 1 and 0 buttons on the popup screen to enter a new code Edit Bit Pattern 4 7 Testing T1 Circuits Configuring BERT Settings e If you pressed aLONGn button use the popup keypad to enter a new code Enter E dit User Programmable Byte Pattern Esc q wfie r t y u ifo p fE 4s 7 8 9 Back Taba s atr apn jtktiy afs shift z x ce y e n m i Win Alt Space Ffilllelo o Enter 3 R83 8 24 am S If you press the Cancel button the selected code is not changed and you return to the Select a Pattern to Program screen 6 Tap OK to save the pattern and return to the Select a Pattern to Program screen You can see the value you configured on the USERn or LONGn button For example USER1 BIT 1111 0100 4 8 Testing T1 Circuits Configuring BERT Settings 7 You can continue to edit patterns as described in steps 4 through 6 When you are finished editing press the Press to Select User Patterns button Then press the pattern you want to use for your test BERT Pattern Setup QRSS Category Select a Pattern to Program USER1 BIT USER2 BIT USERS BIT USERS BIT 11110000 1011001110 1000100010 4111411100 LONG1 BYTE LonG2 BYTE LoNG3 BYTE LONG4 BYTE ABCDEFGHV test 01234567
158. o the T1 Testing screen and does not save any bit pattern changes Select All button Selects all 24 channels Deselect All button Lets you start your selection again Disable button Indicates that you do not want to transmit signaling bits over the selected channel s The configured signaling bits are sent out on the appropriate channels while a test is running 5 39 T1 Testing Screen Reference PRMs Tab PRMs Tab The PRMs tab displays counts for various error events and lets you select and transmit a PRM message while a test is running Test Detailed AB CD Summary Results Bits Message Description a CRC Error Event 1 Toggle Send State CRC Events gt 1 but lt 5 CRC Events gt 5 but lt 10 CRC Events gt 10 but lt 100 CRC Events gt 100 but lt 319 CRC Events gt 320 Severely Errored Framing Event gt 1 Frame Synchronization Error Event gt 1 Line Code Violation Event gt 1 Slip Event gt 1 Payload Loopback Activated Send Checked bO s_F ecoooocececse Message and Descriptions column Lists the PRMs you can transmit Count Shows the number of times the message was detected during a test Error Free Events shows the number of events during which no errors occurred Total CRC Events shows the total number of CRC errors received during a test Up and Down cursor movement buttons Moves the cursor up and down through the list of messages T
159. oding Framing Pattern FracTi Clocking Build Out Pattern Single None Loop Loop nE Type Rate Code Up Down 2 Tap the Line button left side of screen and select the line RX1 TX1 or RX2 TX2 you want to transmit the PRMs on T1 Normal Slip Event gt 1 mee Loopback Activated 3 Usethe A and buttons to move the cursor to the messages in the list 4 Tap the Toggle Send State button to select a message to transmit during the test When you select messages you can select one of the Gx messages either the SE or the FE message the LV message the SL message and or the LB message Message Description CRC Error Event 1 CRC Events gt 1 but lt 5 CRC Events gt 5 but lt 10 CRC Events gt 10 but lt 100 CRC Events gt 100 but lt 319 CRC Events gt 320 Toggle Send State Send Checked boo o Messages Severely Errored Framing Event gt 1 Frame Synchronization Error Event gt 1 Line Code Violation Event gt 1 Slip Event gt 1 Payload Loopback Activated eoooocececse To deselect a message move the cursor to that message and press the Toggle Send State button You will see the check disappear from the check box 4 37 Testing T1 Circuits Running a T1 Test Tap the Send Checked Messages button to transmit the selected message Watch the Count column the Error Free Events counter and the Total CRC Events counter Count for each message indicates that type of message w
160. oggle Send State Selects or deselects a message in the list Send Checked Messages button Transmits the selected messages over the selected T1 line 5 40 T1 Testing Screen Reference DDS Tab DDS Tab The DDS tab displays information about the RX DDS control codes on the selected DDS channel Test Detailed AB CD Summary Results Bits Code Description Data Count Duration MJU Alert 00000000 6 Loopback Enable 00000000 2 Control Mode Idle 00000000 0 Far End Voice 00000000 0 DSU Loopback 00000000 1 Channel Loopback 10100111 5 DS0A 19200 1 1 Format Rate Channel User DDS Frame Sync DSO B format only Lights to indicate the tester has synchronized to the framing format on the DDS channel Code The name of the control code Description A description of the control code Data The control code in binary format Count The number of time this control code has been detected Duration The number of seconds this control code has been present on the channel For information about running a DDS BERT test including a description of the Format Rate Channel and User buttons see Configuring a Digital Data Service DDS BER Test page 4 11 5 41 T1 Testing Screen Reference 5 42 Activating the Signaling Option 6 2 Monitoring Channel Status 6 3 Entering a Dial String 6 5 Configuring Trunk Type and Signaling Direction 6 6 Entering and Sending a Dial String 6 9 Program
161. ogram Stored Number Modes Monitor both CO and Customer Interface CI emulate CO emulate CI Channel Selection 1 to 24 Status Indicators CO on hook off hook ringing Cl on hook off hook ringing AB CD Decodes Displays signaling state on hook off hook ringing and AB CD signaling bits for RX1 or RX2 depending on signaling type and mode Call M onitor Logging Monitor modes selected channel scan and monitor until hang up scan and monitor until timeout can select 5 10 15 30 or 60 seconds Decodes DTMF MF and DP digits and signaling state resolution of 1 second Dial Modes Channel selection 1 to 24 DTMF digits 0 9 A B C D pause digit and interdigit time is typically 50 ms MF digits 0 9 KP ST 1 3 pause digit time is typically 70 ms KP time is typically 100 ms interdigit time is typically 50 ms DP digits 0 9 Controls Go On Hook Now Go Off Hook Now Program Stored Numbers Program up to nine digit strings SN1 SN9 with MF DTMF and DP Specifications Pulse Mask Option 020 Characteristics Pulse Mask Option 020 Characteristics Masks T 1 102 T 1 403 G 703 Pub 62411 Capture Data Line 1 or 2 Acquire positive negative or positive and negative Mask Tolerance 0 3 or 6 Measurements Pass fail amplitude mv rise time ns fall time ns width ns overshoot undershoot imbalance ration only when acquire is set to positive and negative
162. on see Vi ewi ng a Call Monitor Log File page 6 15 Default ON L 1 2 SENSe BYTE Pattern COUNt lt value gt This command lets you configure the number of bytes to capture during a test Parameter Range 0 to 1024 bytes Default 1024 L 1 2 SE NSe BYTE Pattern STORe lt PROG1 PROG2 PROG3 PROG4 gt This command lets you configure four buffers to store captured bytes Default PROG1 L 1 2 SENSe BYTE Pattern TRIGger MASK lt data pattern gt This command indicates to the tester to capture data when the selected data pattern mask is received Parameter Range 0 to Oxff Default Oxff Dual DS1 0 SCPI Commands L 1 2 SENSe BYTEPattern TRIGger ACTion lt OFF IM M ediate APPly gt L 1 2 SENSe BYTE Pattern TRIGger ACTion lt OFF MMediate APPly gt This command indicates whether you want to use the data capture feature DT1 L 1 2 SENSe BYTEPattern TRIGger ACTion lt capture mode gt Parameters Capture Mode Description OFF Stop BERT pattern capture IMMediate Start BERT pattern capture immediately When you enter this parameter it overrides any setting you have entered in the L 1 2 SENSe BYTEPattern TRiGger MASK lt data pattern gt command see page 8 14 APPly Start BERT pattern capture when the mask defined in the L 1 2 SENSe BYTEPattern TRiGger MASK lt data pattern gt command is detected see page 8 14 Default OFF Dual DS1 0 SCPI
163. or test or continuous To set a test duration follow these steps 1 Tap the File toolbar button and select the Test Time option 2 When the following screen appears tap the desired test time button Select Test Time Mode for Testing If you want to enter a specific amount of time tap the Keyin button When the following screen appears tap the Days Hours or Minutes buttons then use the up and down arrow buttons to set the desired time Tap OK to save the time and return to the previously displayed screen Tap Cancel to return to the previous screen without saving your entry Set the Test Time Duration eeehe el i 1 16 PrintingaReport 2 2 Entering Test Header Information 2 4 SavingaReport 2 6 Changing Default FileNames 2 9 Viewing and Printing Saved Reports 2 11 Connecting a Printer to a Service Advisor Tablet N1610A 2 11 Connecting a Printer to an Internet Advisor J 2300C D 2 12 Printing Reports 2 12 Deleting Saved Files 2 15 Dual DS1 0 Sample Reports 2 16 Saving Printing and Deleting Reports 2 1 Saving Printing and Deleting Reports Printing a Report Printing a Report While running a test or after you tap the Stop toolbar button to stop atest you can print a report that contains configuration and test results information Follow these steps to print a report for the test that is currently running or a test that you just stopped To print a saved report
164. or to M oves cursor to preceding digit end of bit pattern If you are entering an out of band loop code LCO1 through LCO4 use the 0 and 1 buttons to enter the new loop code on the Program User Loop Code screen Program User Loop Code ea ea H r Entire Loop Code O 000000 011111111 Tap OK on either screen to save your entry If you press the Cancel button the programmed bit pattern is not changed and you return to the Select User Programmable Loop Code screen When you are finished editing loop codes press the OK button on the Select User Programmable Loop Code screen to save your changes and return to the T1 Testing screen If you press the Cancel button the programmed bit patterns are not saved 4 27 Testing T1 Circuits Setting the Voice Frequency Audio Controls Setting the Voice Frequency Audio Controls This section explains how to use the VF Voice Frequency tab on the T1 Testing screen to configure dropped VF channels to the Service Advisor s speaker for monitoring audio and insert tones on a channel in the T1 circuit Drop Channel Audio RX1 RX2 Use this portion of the screen to e Select the channel from which you want audio dropped to the handset the headset on the Service Advisor platform and the Service Advisor s platform speaker e View the detected frequency and audio level and channel data dynamic readout in bit format of the dropped channel e Mute or adjust the vo
165. ote Acquire on the Pulse Mask Test Setup screen must be set to Positive amp Negative to receive an imbalance ratio value see page 7 3 7 6 SCPI Command Syntax 8 2 Programming a DS1 0 Test 8 7 SCPI Return Codes 8 8 Basic Test Commands 8 9 Signal Routing Commands 8 10 Receiver Configuration Commands 8 12 Pulse Mask Test Commands 8 16 Transmitter Line Configuration Commands 8 20 Transmitter Bit Error Rate Test BERT Configuration Commands 8 26 BERT Sequences Configuration Commands 8 34 Performance Report Messages PRMs Commands 8 38 Three Tone Slope Test Commands 8 41 DDS Control Commands 8 43 Transmitter Loop Code Commands 8 47 Transmitter Alarm and Error Injection Commands 8 52 Transmitter Voice Frequency Signaling Commands 8 56 Data CaptureCommands 8 60 Signaling Option 010 Commands 8 63 Using Query Commands to Retrieve Results 8 71 Dual DS1 0 SCPI Commands Dual DS1 0 SCPI Commands SCPI Command Syntax SCPI Command Syntax Standard Commands for Programmable Instruments SCPI is a command language used to control electronic test and measurement plug in modules SCPI commands are sent from a PC to a Service Advisor s test module to configure and perform tests and gather data Each SCPI command consists of a command set prefix such as DT1 aline identifier either L1 or L2 a root node SOUR in the following example one or more lower level nodes DATA PATT in the following example followed by an
166. pattern sync error Other history and ready Error Injects Logic BPV Frame CRC Alarm Injects AIS Yellow CDI Error and Alarm Injection Rate Single Burst 1E 1 1E 2 1E 3 1E 4 1E 5 1E 6 1E 7 Test Periods Continuous user selectable time periods 9 2 Specifications DS1 0 Features Storing and Printing Results Pri nter Remote Control Control by user interface or customer written interface Printer control by user s PC serial or parallel Results and setup storage Limited only by user s PC hard drive capacity Test setups and results can be saved to hard drive or floppy disk Physical Characteristics of Dual DS1 0 Test Module Size WxHxD 3 5 X8 5 x 1 inches Weight 1 5 pounds 6 kg Temperature Operating 0 to 40 C 32 to 104 F Storage 20 to 60 C 4 to 140 F Power 7 Watts provided by Service Advisor N1610 EMI FCC Class Mechanical HP Handheld Class 2B 9 3 Specifications T1 and Fractional T1 Transmitter Specifications Tl and Fractional T1 Transmitter Specifications Number Two fully independent transmitters Line codes AMI B8ZS Framing D4 ESF SLC 96 None Impedance 100 ohms 5 Line Build Out Selectable 0 7 5 15 22 5 dB 0 266 399 533 655 feet Transmitter timing Recovered loop timed Internal Pulse shape T 1X 1 403 for cross connects T1 Standards ANSI T1X 1 403 TR TSY 00008 Intrinsic jitter ITU T Rec 703 section
167. ptable and red unacceptable If no signal is detected you see 0 zero Volts in this field The nominal level is 6 0 Volts 3 8 T1 Analysis View ing T1 Signal Test Results RX1 RX2 Freq Shows the frequency of each receive RX1 and RX2 T1 signal in Hertz The dynamic pointers in the middle of the display fields move to graphically show the frequency of the receive signals Color coding indicates whether the signal is acceptable green good yellow acceptable and red unacceptable If no signal is detected you see No Si gnal appear in this field RX1 RX2 If two T1 signals are detected this field shows the frequency difference between both receivers RX1 minus RX2 A positive number indicates RX1 is running faster than RX2 a negative number indicates RX1 is running slower than RX2 If only one T1 signal is detected you see N A in this field Bit Slips If two T1 signals are detected this field shows the number of individual time slot differences between the two DS1 receivers A positive value indicates that the receive frequency is greater than the reference frequency A negative value indicates the receive frequency is less than the reference If the reference is lost the bit slip count is restarted from zero when the reference is restored If only one T1 signal is detected you see N A in this field Frame Slips Indicates the number of frame slips that may have occurred A frame slip is declared when a difference of
168. put The settings are grouped by button names Selecting the Test Mode When you tap the Test Mode button the following popup appears ae Loop Loop T1 Normal The T1 transmit signal is generated internally according to the selected framing payload line code and so on The receiver is configured for the same settings allowing for BER testing the received pattern is compared to the transmitted pattern During T1 Normal test mode channels can be tested for BERT tone or dialing Internal Loop The Service Advisor internally loops the T1 transmit TX signal back to the T1 receive RX signal at the digital level This is comparable to connecting a patch cord between the TX1 RX1 or TX2 RX2 ports on the Service Advisor In this mode Rx Input is forced to Terminated and Clocking is forced to Internal Use this mode if you want to verify the test set s configuration and that it is working properly Remote Loop The receive T1 signal is looped back to the transmitter The receive data is regenerated and transmitted to the span Full T1 monitor testing can be performed in this mode CSU Channel Service Unit mode The Service Advisor performs as a CSU on the span responding to all valid loop up and loop down codes When the unit is not looped back it transmits all ones with the selected framing and line code 5 3 T1 Testing Screen Reference Line Configuration and Status Drop Insert In this mode single or multiple times
169. r once Continuous runs the selected sequence continuously until the test is stopped Oncetransmits the selected sequence once 4 21 Testing T1 Circuits Configuring BERT Sequences e Tap the Run each pattern for button and enter the length of time 5 to 300 seconds to transmit each pattern in the sequence on the popup keypad Enter Value 5 300 Seconds 5 Seconds The Clear button clears the displayed duration Tap OK to save the duration you entered and return to the BERT Sequences screen The Cancel button returns you to the BERT Sequences screen and does not change the duration setting 10 Check the Framing Coding and Pattern settings If you need to modify a setting press the T1 Testing toolbar See Setting Up a T1 Test page 4 3 for more information 11 Tap the Code button and select a loop code on the displayed screen L1 Select Loop Code NIU avo rove ohio iiaii Oo You ll see the loop code you selected in the Code button s display area See Default Loop up and Loop down Setti ngs page 5 26 for a definition of the loop codes Testing T1 Circuits Configuring BERT Sequences 12 Tap the Start toolbar button to start a test 13 Observe the pattern status information 14 When the test is running you can use the following buttons 15 Advance Pattern FDL Payload Loop Up Loop Down Code Hold Pattern button pauses the current pattern Use this button when you
170. reen Reference Digital Data Service DDS Settings DDS Test Pattern Descriptions continued Pattern DDS2 Description A repeating pattern of 7E 00 hex 100 octets of 0111 1110 7E followed by 100 octets of 0000 0000 00 This pattern switches rapidly between HDLC SLDC protocol 7E flags or idles and all zeros which detects some pattern sensitivity problems The 00 portion of the pattern creates extreme stress on timing recovery ALBO and repeater equalization circuits DDS2 contains 100 bytes of hex 00 1 000 binary zeros in a row Using this pattern on a T1 or DSO circuit running over AMI line coded facilities will cause a traffic affecting failure of that facility Note Most HDLC SDLC pattern sensitivity problems occur when the 7E flag follows a long string of ones as in the OCT 55 T1 6 pattern To use the OCT 55 pattern on a T1 DDS channel run a T1 BER test using Frac T1 or Drop Insert test mode to select the DDS channel DDS3 A repeating pattern of 32 hex 00110010 This pattern which runs safely on all DS1 facilities is a traffic simulator that stresses power supplies and regenerator switching circuitry with rapid transitions between ones and zeros It also stresses timing recovery for IBM and bisync protocols This pattern will not invoke B8ZS on B8ZS configured facilities DDS4 A repeating pattern of 40 hex 0100 0000 This pattern which runs safely on all DS1 facilities provides the
171. rely error seconds SES consecutive severely error seconds CSES unavailable seconds UAS error free seconds EFS ES SES CSES MUAS EFS BPV Errors Count rate ES SES CSES UAS EFS ES SES CSES WAS EFS CRC Errors Count rate ES SES CSES UAS EFS ES SES CSES UAS EFS Frame Errors Count rate ES SES CSES UAS EFS ES SES CSES YAS EFS Round Trip Delay Measurement range 2 15 pattern 0 to 21 msec 2 20 pattern 0 to 68 sec 2 23 0 to 5 4 sec QRSS 0 to 68 sec with a resolution of 1 bit time and accuracy of 2 bit times Tone Timeslot demultiplexed and level and frequency measured AB CD Bits Simultaneously displays AB CD bits in all 24 channels for either receiver Specifications Signaling Option 010 Characteristics Timeslot Data Displayed 8 bit 3 Tone Slope Shows average value of tone in dBm 1 frequency acceptance bandwidth for 404 Hz 1004 Hz and 2804 Hz tones PRM Shows total counts for G1 G2 G3 G4 G5 G6 SE FE LV SL and LB error free seconds and total CRC events DDS Measurements DDS frame synchronization control code capture code description data count and duration Signaling Option 010 Characteristics Signaling Types E amp M immediate E amp M wink start ground start loop start data mixed trunk signaling type can be programmed for individual timeslots Operating Modes AB CD decode Call Monitor Logging Dial Pr
172. s 8 47 8 51 configuring 4 4 4 24 CSU 8 48 editing 4 27 entering user programmable codes 4 26 frame bit overwrite 8 49 inband 8 48 loop code conti nued inband loop down codes 8 50 inband loop up codes 8 49 line 8 48 loop down 8 49 loop up 8 49 network 8 48 NIU 8 48 OCU DP 8 48 out of band 8 48 out of band loop down codes 8 51 out of band loop up codes 8 50 payload 8 48 sending 4 36 type 8 48 V54 8 48 loop down button 4 36 loop up button 4 36 M MF dial mode 6 10 6 13 mixed trunk types 6 8 Modify TX Signaling Bits button 4 34 module status indicators 1 3 monitoring channel status 6 3 monitor jack mode 3 3 Multiple Pattern Test MTP running test 4 15 test patterns 5 23 multiple SCP commands sending 8 6 network loop code 8 48 NIU loop code 5 26 8 48 NX56 rate 8 25 NX64 rate 8 25 Index 4 0 octet patterns 8 30 OCU DP loop code 5 26 8 48 off hook 6 10 on hook 6 10 operator ID 2 4 option 010 6 2 out of band loop code 8 48 out of service BER testing 4 5 overshoot 7 6 P passive monitoring 3 2 pattern BERT 4 5 4 7 loss 3 6 sync 3 6 pause inserting in dial string 6 13 payload loop code 8 48 print test results 2 11 PRMs injecting 4 37 PRMs tab 4 39 4 42 5 40 Program Stored Numbers button 6 13 pulse mask activating 7 2 measurements 7 6 querying information 8 88 8 91 sample waveform 7 5 screen 1 12 setting with SCPI 8 16 Q QRSS data pattern 8 29 query commands
173. s circuits beyond the standard specified limits It is commonly used for testing HDB3 encoded circuits Live No pattern The receiver does not try to synchronize to a pattern The transmitter sends the ORSS pattern 5 10 T1 Testing Screen Reference Octet Settings Octet Settings BERT Pattern Setup QRSS Category Select a Pattern to BERT The following table defines the selectable density test patterns Octet BERT Patterns Pattern Description Oct 52 A 52 octet pattern whose byte values hex are as follows 80018001 80018001 80018001 80018001 80018001 80018001 80018001 8001AFAA AF010101 OL1FFFFFF PFOLOLOL O1LEFEFEF FRFFFFCD Oct 53 A 53 octet pattern whose byte values hex are as follows ffffd301 80018001 80018001 80018001 80018001 80018001 80018001 80018001 8001f555 5808080 80ffffff 808080 8OfFfFffff Oct 54 A 54 octet pattern whose byte values hex are as follows 01010101 01010001 01010101 01030101 01010701 01015555 5555AAAA AAAA0101 01010101 FFFFFFFF FFFF8001 80018001 80018001 80 5 11 T1 Testing Screen Reference Octet Settings Octet BERT Patterns continued Pattern Oct 55 Description A 55 octet pattern whose byte values hex are as follows 0000000 0000000 0000000 0000000 0000000 0101010 0101010 0000000 ose es Ol 00000001 0000000 10000000 00000001 10000000 10000000 10000000 10101010 10000000 10000000 11111111 10000000 000
174. s not appear to be operating properly carefully check all configuration parameters and connections Also check that the module is seated properly in the Service Advisor Any adjustment maintenance or repair on this module must be performed by qualified personnel Contact your Customer Engineer through your local Agilent Technologies Service Center You can find a list of local service representatives on the Web at www tm agilent com tmo assist English Select a country and then the link under the Local Office s section found at the bottom of the screen Selecting the local office link displays location and contact information for all the local offices If you do not have access to the Internet one of these centers can direct you to your nearest representative Service Center Telephone Numbers Location Telephone Number United States Test and Measurement Call Center 1 800 452 4844 toll free in the U S Canada 905 206 4725 Europe 31 20 547 9900 Japan Measurement Assistance Center 81 426 56 7832 81 426 56 7840 FAX Latin America 305 267 4245 305 267 4288 FAX Warranty amp Services 4 Services and Support Service Center Telephone Numbers continued Location Telephone Number Australia 1 800 629 485 New Zealand 0800 738 378 Asia Pacific 852 2599 7777 852 2506 9285 FAX Warranty amp Services 5 Returning a Unit for Repair Returning a Unit for Repair If your
175. s occurred BIT_EFS PC The percentage of all seconds that contained no bit errors BIT_ES The number of seconds during which at least one bit error occurred BIT_SES The number of seconds during which the error rate was 10 or greater BIT_SYNC The number of times the Service Advisor lost synchronization with the receive signal pattern BIT_SYNC_ES The number of seconds since start of test the Service Advisor was not synchronized on the receive signal pattern BIT_CSES Bit consecutive severe error seconds BIT_CSES_ RATIO Bit consecutive severe error seconds rate 8 78 Dual DS1 0 SCPI Commands L 1 2 FETCh ERRor lt type gt Error Information continued Type Fetches BPV Bi polar violation error count BPV_RATIO The ratio of BPVs to the number of bits received BPV_EFS The number of seconds during which no BPV errors occurred BPV_EFS_PC The percentage of all seconds that contained no BPV errors BPV_ES The number of seconds during which at least one BPV occurred BPV_SES Bi polar violation severe error second BPV_CSES Bi polar violation consecutive severe error second BPV_CSEC_RATIO Bi polar violation consecutive severe error seconds rate CRC CRC 6 error count CRC_RATIO The ratio of CRC 6 error over the total number of ESF frames received CRC_EFS The number of seconds during which no CRC errors occurred CRC _EFS PC The percentage of all seconds
176. s red to indicate an excess zeros condition or a ones density violation An excess zeros condition occurs when the receive signal contains more than 15 consecutive zeros A ones density violation occurs when the signal s ones density falls below 12 5 Every 8 x N 1 bits must contain at least N ones where N is 1 through 23 The associated history indicator turns yellow after either condition is detected Alarm Seconds The number of ones density violations that have occurred since the test began AIS Signal Turns red to indicate the presence of an Alarm Indication Signal unframed all ones The associated history indicator turns yellow after this condition is detected Alarm Seconds The number of seconds during which at least one Alarm Indication Signal AIS was detected Yellow Alarm Turns red to indicate the presence of a Yellow alarm for D4 bit 2 of each DSO set to 0 for at least 255 consecutive channels for ESF an alternating OOFF hex pattern in the FDL The associated history indicator turns yellow after this condition is detected Alarm Seconds The number of seconds during which at least one Yellow alarm was detected CDI Alarm Customer Disconnect Indicator turns red when a NIU network interface unit at a customer site detects that it is not receiving a signal from a previously connected piece of T1 equipment The associated history indicator turns yellow after this condition is detected Alarm
177. see Saving Printing and Ddei ng Reports page 2 1 Defaults Stops any active test and resets the Dual DS1 0 Test module to the factory default settings 1 6 Using the Dual DS1 0 Test M odule Using the Dual DS1 0 Toolbar File Menu Options continued Option Description Test Time Lets you set the length of time to run a test including a continuous setting see Setting the Test Duration page 1 16 Exit Saves your configuration settings closes the DS1 0 GUI and returns control to the Service Advisor Manager see the Service Advisor Portable Tablet User s Manual for information on the Manager Note If you power off the Service Advisor without using the Exit option your configuration settings are not saved the settings return to the previously configured values Help Displays the version of software and firmware running on the module 1 7 Using the Dual DS1 0 Test M odule T1 Analysis Screen T1 Analysis Screen Tap the T1 Analysis toolbar button to monitor one or two T1 circuits simultaneously The RX1 and RX2 indicators on the button show the summary status of both lines valid T1 signal on line and no errors or error or alarm condition detected See Chapter 3 T1 Analysis for more information about using this screen Start Stop test button shows elapsed time and amount of time left Indicates status of T1 lines N1660A Dual DS1 0 Tester T1 Analysis ESA ae 7 Tool
178. set the test time to continuous enter a 0 zero duration time Default 0 Dual DS1 0 SCPI Commands SOURce TIM Etest lt duration gt Transmitter Bit Error Rate Test BERT Configuration Commands This section describes the SOURce commands used to configure the BER test patterns you want to use DT1 L 1 2 SOURce Command Structure Root Level 1 Level 2 DT1 SOURce BITPattern PROG1 lt BERT bit string gt PROG2 lt BERT bit string gt PROG3 lt BERT bit string gt PROG4 lt BERT bit string gt BYTEPattern PROG1 lt BERT byte string gt PROG2 lt BERT byte string gt PROG3 lt BERT byte string gt PROG4 lt BERT byte string gt DT1 L 1 2 SOURce DATA PATTern lt BERT pattern gt INVert lt ON OFF gt 8 26 Dual DS1 0 SCPI Commands SOURCce BITPattern PROG1 lt BERT bit pattern gt SOURce BITPattern PROG1 lt BERT bit pattern gt This command lets you enter a user defined receive BER test bit pattern This pattern can contain up to 32 bits For example you can enter 10110000000000000000000000000001 Default 11110000 SOURce BITPattern PROG2 lt BERT bit pattern gt This command lets you enter a user defined receive BER test bit pattern This pattern can contain up to 32 bits For example you can enter 10110000000000000000000000000001 Default 101100111000111110000 SOURce BITPattern PROG3 lt BERT bit pa
179. sor Tablet N1610A To connect a printer to the Service Advisor Tablet follow these steps 1 On top of the Service Advisor open the panel that protects the serial and parallel ports Service Advisor Top View Parallel port 2 Install a DB 25 cable between the parallel port on the Service Advisor and your printer Saving Printing and Deleting Reports View ing and Printing Saved Reports Connecting a Printer to an Internet Advisor J 2300C D To connect a printer to an Internet Advisor follow these steps 1 Locate the parallel port on the side of the Internet Advisor Parallel port 2 Install a DB 25 cable between the parallel port on the Internet Advisor and your printer Printing Reports You can print saved reports when you connect a printer to your Service Advisor Tablet or Internet Advisor If you are controlling your tester remotely from aPC you can print reports on the printer connected to your PC or a network printer To print saved reports follow these steps 1 Tap the File toolbar button and select the Reports option 2 12 Saving Printing and Deleting Reports Viewing and Printing Saved Reports 2 Tap the View Print Delete button on the N1660A Reports screen N1660A Reports 3 Tap the N1660A or the PC Card button depending on where you saved the desired report file Saved Reports Modified 26Aug1999 10 18 0
180. synchronization error event was detected LV Number of times at least one line code violation event was detected SL Number of times at least one slip event was detected LB Number of times a payload loopback was activated 8 87 Dual DS1 0 SCPI Commands Querying Pulse Mask Information Querying Pulse Mask Information This section describes the commands used to query the pulse mask test information L 1 2 F ETCh PMASkK IMBRatio Use this command to query the ratio of the amplitude of the positive received pulse and the amplitude of the negative received pulse meets the specifications of the selected pulse mask You receive a ratio only when you set the L 1 2 F ETCh PMASk POLarity command to positive amp negative see L 1 2 SENSePMASk POLari ty lt acqui red polarity gt page 8 18 L 1 2 FETCh PMASkK POSitive DATA Use this command to query the data points of the positive pulse L 1 2 F ETCh PMASk POSitive FITStatus Use this command to query the result of positive pulse fitting 0 failed 1 success 2 no data Oxff unavailable L 1 2 F ETCh PMASk P OSitive AMPLitude Use this command to query the positive pulse amplitude in millivolts Dual DS1 0 SCPI Commands L 1 2 FETCh PM ASk POSitive RISE L 1 2 FETCh PMASk POSitive RISE Use this command to query the rise time of the positive pulse in nanoseconds L 1 2 FETCh PMASK
181. t Slips N A Frame Slips N A ALARM SECONDS RX1 RX2 Signal Loss Seconds 2608 2608 Frame Loss Seconds 2608 2608 Pattern Loss Seconds N A N A Bipolar Violations BPV 0 0 AIS Seconds 2608 2608 Yellow Alarm Seconds 2608 2608 CDI Alarm Seconds 0 0 ERROR COUNTS RX1 RX2 Line Coding Errors 85746686 85528451 Frame Errors 85590326 85818510 Pattern Errors N A N A CRC Errors 84762338 85623058 Density Violations 0 0 END REPORT N1660A SW REV 1 30A HW REV 1 00 SN 0 2 17 Saving Printing and Deleting Reports Dual DS1 0 Sample Reports Sample T1 Testing Report The T1 Testing Report contains the T1 Test configuration settings the transmit and receive signal settings the signaling bits set on the receive signal and error alarm VF and DDS test results N1660A SUMMARY REPORT T1l TESTING Module Slot A Date 30Mar2000 Time 13 59 33 Elapsed Test Time 00 00 00 Test Status STOPPED File Name TEST INFORMATION Customer Name ABC COMPANY Circuit Id 5551212 Operator Id MATT Comments LINE TESTED TEST CONFIGURATION TEST CONFIGURATION Mode T1 Normal Line RX1 TX1 RX Input Terminate
182. ter a user defined receive BER test byte pattern This pattern can contain up to 1024 bytes For example you can enter ABCD Default 9876543210 L 1 2 SOURce DATA PATTern lt BERT data pattern gt Use this command to set the transmit BER test data pattern DT1 L 1 2 SOURce DATA PATTern lt BERT pattern gt Parameters Pattern Description NONE No BER test data pattern set ONES All ones ORSS Quasi random signal 63 A 63 bit PRBS used for DSO testing on DDS channels 215 Pseudorandom bit sequence PRBS For example 2 15 1 is a 2 5_1 PRBS This pattern is used to stress clock recovery circuits with a maximum of 14 consecutive zeros 220 This pattern stresses AMI coded 1 54 Mb s circuits beyond the standard specified limits 223 This pattern stresses AMI coded 1 54 Mb s circuits beyond the standard specified limits It is commonly used for testing HDB3 encoded circuits 511 A 511 bit PRBS used for DSO testing on DDS channels 2047 A 2047 bit PRBS used for DSO testing on DDS channels Dual DS1 0 SCPI Commands L 1 2 SOURce DATA PATTern lt BERT data pattern gt DT1 L 1 2 SOURce DATA PATTern lt BERT pattern gt Parameters continued Pattern Description SPACe All zeros ALT Alternating ones and zeros USER User programmable pattern DALY 55 octet pattern NET55 A 55 octet pattern Similar to the Daly pattern but byte 3 is 03 and byte 7 is 00
183. termination mode selecting with SCPI 8 24 Test button 1 5 1 10 1 11 1 12 6 3 test modes CSU 5 3 8 21 drop amp insert 5 4 8 21 external loop 8 21 internal loop 5 3 8 21 remote loop 5 3 selecting 4 3 5 3 selecting with SCPI 8 21 Tl normal 5 3 8 21 test results printing 2 11 viewing 4 41 Test Summary tab 4 39 5 29 test time elapsed 3 4 4 35 setting 1 7 1 16 3 4 4 35 setting with SCPI 8 25 three tone slope 4 31 See also 3 Tone Slope tone duration button 5 37 toolbar 1 5 Index transmitter setting 4 4 trunk type button 6 7 configuring 6 6 8 66 mixed 6 8 TX signaling bits button 4 33 setting 4 33 U undershoot 7 6 user programmable loop code 4 26 V V 54 loop code 5 26 8 48 version of software displaying 1 7 VF audio controls setting 4 28 VF frequency specifying with SCPI 8 14 VF tab 4 29 4 39 4 41 5 36 viewing test results 4 41 W windows See also function tabs screens Y yellow alarm 3 7 5 6 Index 7 Index Index 8
184. that contained no CRC errors CRC_ES The number of seconds during which at least one CRC error occurred CRC_SES CRC severe error seconds CRC_CSES CRC consecutive severe error seconds CRC_CSES_RATIO CRC consecutive severe error seconds rate FRM Frame error count FRM_RATIO Frame error current ratio FRM_EFS Frame error free seconds FRM_EFS PC Frame error free second percent FRM_ES Frame error seconds 8 79 Dual DS1 0 SCPI Commands L 1 2 FETCh SLIP CLOCK Error Information continued Type Fetches FRM_SES Frame error severe error seconds FRM_SYNC Frame error synchronization count FRM_SYNC_ES Frame error synchronization seconds FRM_CSES Frame consecutive severe error seconds FRM_CSES_RATIO Frame consecutive severe error seconds rate L 1 2 FETCh SLIP CLOCK The number of individual timeslot differences between the receive signal and the 1 544 MHz reference signal A positive value indicates the receive frequency is greater than the reference frequency a negative value indicates the receive frequency is less than the reference frequency Default 0 L 1 2 FETCh SLIP CLOCK_RATIO The clock slip current ratio Default 0 L 1 2 FETCh SLIP PF RAMe This count indicates that frame slips occurred when the receive signal was faster than the reference signal Default 0 8 80 Dual DS1 0 SCPI Commands L 1 2 FETCh SLIP NFRAMe
185. that do not have a DSX monitor jack 5 4 T1 Testing Screen Reference Line Configuration and Status Signal Indicators T1 Indicators The signal indicators show whether certain conditions are present on the currently selected T1 input signal see T1 Measurements page 9 8 The indicators in the left column are history indicators that light to show a previous occurrence of the error condition The Clear History button resets these indicators Indicator Description RX Pulses Turns green to indicate the presence of a T1 signal at the RX jack Frame Syne Turns green to indicate the T1 Service Advisor has synchronized to the receive signal framing Pattern Sync Turns green to indicate the unit is synchronized with a known input data pattern Signal Loss Turns red to indicate a loss of signal condition at the RX jack lasting for more than 150 milliseconds Frame Loss Turns red to indicate a loss of framing LOF condition For D4 SF LOF is declared when 2 out of 5 F bits are errored For ESF LOF is declared when 2 out of 5 frame bits are errored Pattern Loss Turns red to indicate a loss of pattern condition Loss of pattern is declared when 100 out of 1000 pattern bits are errored Density Violations Turns red to indicate an excess zeros condition or a ones density violation Excess zeros are declared when more than 15 consecutive zeros are detected A ones density violation is declared
186. ting T1 Circuits Setting Up a T1 Test Setting Up aT1 Test This section describes how to set up the basic T1 test configuration 1 Tap the T1 Testing toolbar button to display the T1 Testing screen 2 Tap the Test Mode button and select the type of test you want to run from the popup menu See Sdecti ng the Test Mode page 5 3 fora description of each test mode Current test mode setting Line you are configuring EE Select Test Mode T1 Normal Loop Loop 3 Tap the Line button until the displayed option indicates where you plugged in the bantam cables on the test module see The Dual DS1 0 Test Module N1660A at a Glance page 1 2 RX1 TX1 Indicates you have plugged the bantam cables into the L1 connections on the module RX2 T X2 Indicates you have plugged the bantam cables into the L2 connections on the module 4 Tap the RX Input button and select the termination mode for the currently selected input RX TX line See Selecting the RX Input page 5 4 Tap the Cancel button if you don t want to change the mode Current RX input setting L1 Select RX Input Mode Terminated Line you are configuring 4 3 Testing T1 Circuits Setting Up a T1 Test Tap the Coding Framing Pattern FracT1 Clocking or Build Out buttons to configure the transmitter settings See Transmitter Setup Controls page 5 7 for a description of the Transmitter Setup buttons AMI NONE None 960 Kb RC
187. ting screen lets you select the type of error you want to inject into the T1 transmit signal L1 Select Error Alarm Inject Type ie Pattern Injects logic errors into the BERT payload pattern BPV Injects bipolar violations into the BERT payload pattern A BPVisa pulse that breaks the alternating polarity rule Frame Injects framing bit errors into the BERT payload pattern Note that this error is inserted only into those F bits that are used for framing CRC Injects CRC cyclic redundancy checksum errors into the BERT payload pattern AIS Injects an Alarm Indication Signal an unframed all ones pattern in the T1 transmit signal 5 24 T1 Testing Screen Reference Error Alarm Injection Yellow Injects a Yellow alarm in the T1 transmit signal For D4 SF the alarm is transmitted in bit 2 of the DSO for ESF the alarm is an alternating OOF F p pattern transmitted in the facility datalink FDL CDI Injects a Customer Disconnect Indicator alarm in the T1 transmit signal to indicate that the NIU network interface unit at the customer s site is not receiving a signal from a previously connected piece of T1 equipment Error Injection Rate The Rate button lets you specify how often to generate the error L1 Select Error Alarm Inject Insertion Rate Single Injects a single error into the BERT payload pattern when you tap the Inject button Burst Injects between 1 and 9 999 errors when you tap t
188. ttern gt This command lets you enter a user defined receive BER test bit pattern This pattern can contain up to 32 bits For example you can enter 10110000000000000000000000000001 Default 1000100010001000 Dual DS1 0 SCPI Commands SOURce BITPattern PROG4 lt BERT bit pattern gt SOURce BITPattern PROG4 lt BERT bit pattern gt This command lets you enter a user defined receive BER test bit pattern This pattern can contain up to 32 bits For example you can enter 10110000000000000000000000000001 Default 111111110000000011111111 SOURce BYTE Pattern PROG1 lt BERT byte pattern gt This command lets you enter a user defined receive BER test byte pattern This pattern can contain up to 1024 bytes For example you can enter ABCD Default ABCDEFGHIJ KLMNOPQRSTUVWXYZ SOURce BYTE Pattern PROG2 lt BERT byte pattern gt This command lets you enter a user defined receive BER test byte pattern This pattern can contain up to 1024 bytes For example you can enter ABCD Default abcdefghijkl mnopqrstuvw xyz SOURce BYTEPattern PROG3 lt BERT byte pattern gt This command lets you enter a user defined receive BER test byte pattern This pattern can contain up to 1024 bytes For example you can enter ABCD Default 0123456789 Dual DS1 0 SCPI Commands SOURce BYTEPattern PROG4 lt BERT byte pattern gt SOURce BYTE Pattern PROG4 lt BERT byte pattern gt This command lets you en
189. two out of five Ft bits are in error Yalow alarm when bit two of each DSO has been zero for 255 consecutive channels ESF alarm criteria Frame loss when two out of five Ft bits are in error Yalow alarm when alternating eight ones and eight zeros are detected in data link Pattern loss criteria Greater than 100 errors in 1000 bits 9 7 Specifications T1 Measurements T1 Measurements Level Terminate 0 to 35 dBdsx Monitor 17 to 30 dB flat loss relative to 0 dBdsx1 Resolution 1 dB and accuracy of 5 Simplex current range 1 to 200 mA with a resolution of 1 mA and accuracy of 5 Frequency Maximum minimum and current during the test period Resolution 1 Hz accuracy 2 dB range 1 544 MHz 250 ppm Slips Measure modes RX1 RX2 TX1 RX1 TX2 RX2 Results relative frequency total estimated frame Status Indicators Green soft LEDs indicate RX pulses presence of a T1 signal frame sync synchronized to receive signal framing and pattern sync synchronized with a known input data pattern Alarm Indicators Red soft LE Ds indicate Signal Loss Frame Loss Pattern Loss Density Violation AIS signal Yellow Alarm CDI Alarms Signal loss seconds and counts loss of frame seconds and counts density violations seconds AIS seconds and count yellow alarm seconds and count CDI seconds and count no LAPD processing pattern loss seconds and count Pattern Errors Count rate errored seconds ES seve
190. unction Codes Description Code Description GoOnHook Go on hook GoOffHook Go off hook Dual DS1 0 SCPI Commands MEMory SIGNal STORe NUM 1 9 lt dial string gt Function Codes Description continued Code Description A D DTMF keys A to D ST MF key ST STP MF key STP ST2P MF key ST2P ST3P MF key ST3P Default not applicable ME Mory SIGNal STORe NUM1 9 lt dial string gt This command lets you save a dial string on the module see Programming and Sending Stored Numbers page 6 13 Example DT1 L1 MEM SIGN STOR NUM2 DT GoOffHook 1234 Default not applicable Dual DS1 0 SCPI Commands L 1 2 ROUTe SIGNal TRUNK CH1 24 lt trunk type gt L 1 2 ROUTe SIGNal TRUNK CH1 24 lt trunk type gt This command lets you select a trunk type see Configuring Trunk Type and Si gnali ng Di rection page 6 6 You must enter the L 1 2 ROUT SIGN TRUN APPL command to make this command active Example DT1 L1 ROUT SIGN TRUN CH2 LOOP DT1 L1 SIGN TRUN APPL see below Trunk types LOOP_start GND_ start EM_Immediate EM_Wink DATA Default DATA L 1 2 ROUTe SIGNal TRUNK APPLy This command activates all the trunk types you entered for channels using the previous command Default not applicable L 1 2 SENSe SIGNal MODE lt EMUL_CO EMUL_Cl MONitor gt This command lets you select a signaling sequence mode see Entering a Dial String page 6
191. unningaTlTest 4 35 Viewing Test Results 4 39 Saving Configuration Settings 4 44 T1 Testing Screen Reference 5 1 Tl Testing Screen 5 2 Line Configuration and Status 5 3 Transmitter Setup Controls 5 7 Line Coding 5 7 Framing Format 5 7 BERT Patterns 5 8 Standard BERT Patterns 5 9 Octet Settings 5 11 User Programmable Settings 5 14 Density Settings 5 15 Digital Data Service DDS Settings 5 16 Clocking Source 5 18 Line Build Out LBO 5 19 BERT Pattern Sequences Controls 5 19 Error Alarm Injection 5 24 Loop Code Controls 5 26 Test Summary Tab 5 29 Detailed Results Tab 5 31 Signal Tab 5 34 VF Tab 5 36 AB CD BitsTab 5 38 PRMsTab 5 40 DDSTab 5 41 vill Contents Using the Signaling Option 010 6 1 Activating the Signaling Option 6 2 Monitoring Channel Status 6 3 Entering a Dial String 6 5 Viewing a Call Monitor Log File 6 15 Using the Pulse Mask Option 020 7 1 Using the Pulse Mask Screen 7 2 Pulse Mask Waveform 7 5 Pulse Mask Measurements 7 6 Dual DS1 0 SCPI Commands 8 1 SCPI Command Syntax 8 2 Programming a DS1 0 Test 8 7 SCPI Return Codes 8 8 Basic Test Commands 8 9 Signal Routing Commands 8 10 Receiver Configuration Commands 8 12 Pulse Mask Test Commands 8 16 Transmitter Line Configuration Commands 8 20 Transmitter Bit Error Rate Test BERT Configuration Commands 8 26 BERT Sequences Configuration Commands 8 34 Performance Report Messages PRMs Commands 8 38 Three Tone Slope T
192. us of T1 lines ge See Sm osion EN Ea ae Toolbar T1 Testing Test entLog AutoSetup Start File Help RX1 Status RX2 Status Signal Status 7 g Signal status and m m alarm indicators o z C oo L75Hz_ 1 544MHz 75Hz2 0 io oo oo Coding framing BERT io fo pattern and CRC a aE errors o _o RX1 input button a ae M Start SyN16104 Service Adv 33 N16604 Dual D51 0 Test Signal frequency level and bit frame slip display 3 2 T1 Analysis The T1 Analysis Screen To monitor one or two T1 circuits follow these steps 1 2 Tap the T1 Analysis toolbar button to display the T1 Analysis screen Tap an RX1 Input button in either the RX1 Status or RX2 Status section of the screen and select the mode from the popup menu If you are monitoring two signals simultaneously set the termination mode for both RX1 and RX2 L1 Select RX Input Mode Terminated Cancel e Terminated The receive signal is terminated to 100 ohms and a full span automatic equalizer ALBO is provided to compensate for cable loss This selection is typically used for out of service testing Monitor J ack The receive signal is a DSX 1 monitor level signal This selection is typically used to monitor a signal through a DSX monitor jack that is resistor isolated from the span Normally the DSX 1 monitor jack signal is 20 dB below the signal into the DSX 1 Bridged The receive
193. us of each channel as determined by the signaling bits for the selected trunk type e ABCD Signaling Bit rows show the binary state 1 or 0 of that channel s signaling bits C and D bits are applicable for ESF framing format only Entering a Dial String The Dial button lets you enter a dial string that you can listen to on a handset connected to the test module a headset connected to the Service Advisor platform or through the Service Advisor s audio speaker This section explains how to configure the signal transmission settings the dial string and the line and channel to monitor When you tap the Dial button on the Dial Monitor Test screen the following screen appears Cursor movement Dial monitor function keys buttons Dial string display N1660A Dual DS1 0 Tester Dial Monitor Test R10 RX 00 00 00 39 te J 5 as T1 Analysis T4 Testing jg AutoSetup Start File Signal status Program On hook off hook Soret control buttons Call Emulation mode Monitor Logging Channel number AB CD Decode Trunk type Volume control for Service Advisor s speaker Dial pad and control buttons 6 5 Using the Signaling Option 010 Entering a Dial String Configuring Trunk Type and Signaling Direction Follow these steps to configure the channel on RX1 TX1 line 1 to transmit the dial string over the type of trunk the Service Advisor is connected to and th
194. vailable while errors were being monitored EFS The number of seconds during which no frame errors occurred Round Trip Delay The round trip delay of a looped back transmit signal Round trip delay is the amount of time it takes the transmit signal to reach the far end and return This measurement is available only when you have configured the 2 15 2 20 2 23 or QRSS pattern 5 33 T1 Testing Screen Reference Signal Tab Signal Tab The Signal tab displays detailed signal measurements for the currently selected receive T1 signal Test Detailed AB CD Sumi Bits Signal Measurement Descriptions Result Description Rx Frequency The current receive frequency in Hertz Rx Frequency Max The highest received frequency Hertz since the start of the test Rx Frequency Min The lowest received frequency Hertz since the start of the test Rx Level PK PK Volts The current signal level in Volts peak to peak Rx Level PK PK dBDSX The current signal level in decibels referenced to DSX 1 level Simplex Current The receiver current in mA which results from a DS1 signal voltage on the selected line TX1 RX1 Frequency Shows the frequency of the transmit and receive T1 signal in MHz on the line The dynamic pointers in the middle of the display fields move to graphically show the frequency of the signals Color coding indicates whether the signal is acceptable green good yellow accept
195. y zeros in a row Using this pattern on a T1 or DSO circuit running over AMI line coded facilities will cause a traffic affecting failure of that facility Note Most HDLC SDLC pattern sensitivity problems occur when the 7E flag follows a long string of ones as in the OCT 55 T1 6 pattern To use the OCT 55 pattern on a T1 DDS channel run a T1 BER test using Frac T1 or Drop Insert test mode to select the DDS channel DDS3 A repeating pattern of 32 hex 0011 0010 This pattern which runs safely on all DS1 facilities is a traffic simulator that stresses power supplies and regenerator switching circuitry with rapid transitions between ones and zeros It also stresses timing recovery for IBM and bisync protocols This pattern will not invoke B8ZS on B8ZS configured facilities 8 31 Dual DS1 0 SCPI Commands L 1 2 SOURce DATA PATTern lt BERT data pattern gt DT1 L 1 2 SOURce DATA PATTern lt BERT pattern gt Parameters continued Pattern DDS4 Description A repeating pattern of 40 hex 0100 0000 This pattern which runs safely on all DS1 facilities provides the minimum ones density for a DSO DDS circuit and stresses clock recovery and repeater equalization circuits DDS4 is actually a one and seven 1 7 or one in eight 1 8 pattern a single binary 1 and seven Os However when DDS patterns are run at DS1 speeds most test sets do not frame align the pattern and frame bits may end up in the middle
196. ync Turns green to indicate the unit is synchronized with a known input data pattern Signal Loss Turns red to indicate a loss of signal LOS condition at the RX jack lasting more than 150 milliseconds An LOS occurs when the Service Advisor cannot detect a valid receive T1 signal at the RX jack The associated history indicator turns yellow after this condition is detected Alarm Seconds The number of seconds during which at least one LOS event occurred Frame Loss Turns red to indicate loss of framing LOF on the receive signal An LOF event occurs when the Service Advisor cannot detect framing on the receive T1 signal With D4 SF framing an LOF occurs when 2 out of 5 F bits are errored With ESF framing an LOF occurs when 2 out of 5 frame bits are errored The associated history indicator turns yellow after this condition is detected Alarm Seconds The number of seconds during which at least one loss of frame LOF event occurred Pattern Loss Turns red to indicate loss of BERT pattern LOP on the receive signal An LOP event occurs when the Service Advisor cannot detect a pattern on the receive T1 signal LOP is declared when 100 out of 1 000 pattern bits are errored Alarm Seconds The number of seconds during which at least one loss of pattern LOP event occurred 3 6 T1 Analysis View ing T1 Signal Test Results Signal Status Indicators continued Indicator Density Violations Description Turn

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