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DACS II/Rel 8.2.6

April 2000

2-3

DACS II/Rel 8.2.6

MML

OPR,LPBK,T1,E1,LOCN
26141

FACILITY LOOPBACK ACTIVATE

MML
26141

OPR,LPBK,T1,E1,LOCN

Explanation of
Command

For DA and TA type NPCs

ANSI (American National Standards Institute) T1.403 is a DS1
interfacespecification, which among other things, specifies the use of the4kb/s
ESF data link for network maintenance. The data link is usedto communicate
between network elements which transport the DS1 facility.

This command is used to initiate near-end (at the DACS II) and far-end (at the
terminal on the other end of the DS1 facility) loopbacks for ESF formatted facilities
as defined by ANSI T1.403.

DACS II will execute a near-end payload loopback by transmitting the received
information bits of each frame back onto the DS1 facility. The framing bit position
is regenerated by DACS II during a payload loopback.

DACS II will also send payload and line loopback commands on the ESF data link
to far-end equipment, ordering the equipment on the other end of the DS1 facility
to execute the respective loopbacks.

For TE and TH type NPCs on HDS3Us

This command can be used to request DS1 or E1 line loopbacks toward the
facility (toward a remote multiplexer) (LOCN NEND), as well as remote line
loopbacks (from a remote multiplexer) toward the HMXR (LOCN FEND) for
all TE and TH type NPCs provisioned on HMXRs (KCR8s) within a Hybrid DS3U.

LOCN FEND loopbacks will only work if the far end multiplexer is equipped for
Remote Loopbak functionality, and additionally, is provisioned to allow Remote
Loopback requests.

Note that the command for LOCN FEND loopback will complete whether or not
the far-end equipment is capable of or permits Remote Loopback requests.

This set of loopbacks (for TE and TH types) employs the "C bits" (stuff bits") within
the M12 frame of the DS3 signal, unlike the DA and TA type loopbacks which use
the ESF datalink to send the Loop Up and Loop Down requests.

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Содержание DACS II

Страница 1: ...Copyright 2000 Lucent Technologies All Rights Reserved Printed in U S A 365 353 255 Issue 2 0 April 2000 DACS II Release 8 2 6 MML Feature Guide ...

Страница 2: ...f Bell Communications Research Inc American Express is a registered trademark of American Express Company MasterCard is a registered trademark of mastercard International Inc Visa is a registered trademark of VISA International Service Association Documentation Ordering Information The ordering number for this document is 365 353 255 To order this document call the Lucent Technologies Customer Inf...

Страница 3: ...re figures Make it less technical Add more examples Add more better quick reference aids Add more detail Improve the index Please provide details for the suggested improvement 3 What did you like most about this CIP 4 Feel free to write any comments below or on an attached sheet If we may contact you concerning your comments please complete the following Name Telephone Number Company Organization ...

Страница 4: ...F MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS PERMIT NO 1999 GREENSBORO NC POSTAGE WILL BE PAID BY ADDRESSEE Do Not Cut Fold Here And Tape DOCUMENTATION SERVICES 2400 Reynolda Road Winston Salem NC 27199 2029 ...

Страница 5: ...emote Loopback Feature 1 4 GT 1 1 Activating a Remote Loopback Test 1 6 GT 1 2 Deactivating a Remote Loopback Test 1 7 RAI Alarm Suppression Feature 1 8 GT 1 3 Changing the Delay for DS3 Alarm Messages 1 9 GT 1 4 Querying the Delay for DS3 Alarm Messages 1 10 2 Release 8 2 6 Commands and Messages 2 1 GL Glossary GL 1 IN Index IN 1 ...

Страница 6: ...Contents vi Issue 2 0 Issue 2 0April 2000 365 353 255 DACS II Operation and Maintenance Manual ...

Страница 7: ...1 3 Objectives 1 3 Related tasks 1 3 Related information 1 3 Remote Loopback Feature 1 4 Overview 1 4 Remote Loopback Operation 1 4 Remote Loopback Process 1 5 GT 1 1 Activating a Remote Loopback Test 1 6 When to use 1 6 Before you begin 1 6 Related Tasks 1 6 Task 1 6 Continued on next page ...

Страница 8: ... Test 1 7 When to use 1 7 Before you begin 1 7 Related Tasks 1 7 Task 1 7 RAI Alarm Suppression Feature 1 8 Overview 1 8 Alarm Suppression Operation 1 8 GT 1 3 Changing the Delay for DS3 Alarm Messages 1 9 When to use 1 9 Related Tasks 1 9 Task 1 9 GT 1 4 Querying the Delay for DS3 Alarm Messages 1 10 When to use 1 10 Related Tasks 1 10 Task 1 10 ...

Страница 9: ...ctives This chapter provides information to perform the following 1 Understand the Remote Loopback process 2 Perform the Remote Loopback test 3 Understand RAI Alarm Suppression operation 4 Change the DS3 alarm reporting delay 5 Retrieve a report listing the DS3 alarm reporting delay Related tasks For related tasks refer to the following tasks in this chapter Activating a Remote Loopback Test GT 1 ...

Страница 10: ...ignal to a remote multiplexer and it can loopback a specified DS1 E1 signal to a remote loopback request from a remote multiplexer Remote Loopback Operation The activation of a loopback signal at the local multiplexer the DACS II KCR8 HMXR circuit pack will cause a DS1 EI facility to loopback at the remote multiplexer far end equipment A test signal is applied to the local multiplexer This test si...

Страница 11: ... specified DS1 E1 tributary This signal will be sent back towards the local multiplexer 5 The looped back test signal is received by the local multiplexer and a comparison is made between the sent and received signals to determine the condition of each multiplexer and facility between them Figure 1 1 Remote Loopback Process M UX DEM UX M UX DEMUX Downstream Upstream DS3 Facility E 1 or DS1 DSX 1 A...

Страница 12: ...ocal multiplexer to check the multiplexers at both ends and the facility between them Before you begin The DS1 E1 NPC under test should be grown and restored Related Tasks For related tasks refer to GT 1 2 Deactivating a Remote Loopback Test Task To activate a remote loopback enter the following command OPR LPBK T1 E1 npcNo loop locn Where Stop End of Task OPR LPBK T1 E1 Operate loopback for a T1 ...

Страница 13: ...n existing remote loopback test in progress Related Tasks For related tasks refer to GT 1 1 Activating a Remote Loopback Test Task To deactivate a remote loopback enter the following command RLS LPBK T1 E1 npcNo loop locn Where Stop End of Task RLS LPBK T1 E1 Release loopback for a T1 1 544 Mb s signal E1 2 048 Mb s signal loop Loopback type loop Explanation LINE Line npcNo NPC number locn Loopbac...

Страница 14: ...y the HMXR suppresses individual DS1 E1 alarm messages when any of the following DS3 failures are detected Loss of Signal LOS Loss of Frame LOF Excessive Bit Error Rate BER Alarm Indication Signal AIS or IDLE RAI Alarm Suppression Operation When a DS3 failure is detected the HDS3U will issue the alarm message and an subsequent idle message for the DS3 itself DS1 E1 messages PBA CGA and performance...

Страница 15: ...the HDS3U is unequipped or Out of Service NOTE This command can only be performed by the Frame Administrator or by a user with Frame Administration privileges NOTE This command sets the DS3 alarm delay for the entire frame Related Tasks For related tasks refer to GT 1 4 Querying the Delay for DS3 Alarm Messages Task To change the delay time of DS3 alarm message reporting enter the following comman...

Страница 16: ...arm Messages When to use Use this task to request the DS3 alarm delay time Related Tasks For related tasks refer to GT 1 3 Changing the Delay for DS3 Alarm Messages Task To query the DS3 alarm delay time enter the following command RTRV ALM T3 DS3ALM Where Stop End of Task RTRV ALM T3 Retrieve alarm information DS3ALM DS3 alarm delay time ...

Страница 17: ...Issue 2 0 April 2000 2 1 2 Release 8 2 6 Commandsand Messages 2 Contents OPR LPBK T1 E1 LOCN 2 3 RLS LPBK NPC LOCN 2 13 RTRV STATE EQPT NPC LPBK 2 17 ...

Страница 18: ...2 2 Issue 2 0 April 2000 365 353 255 DACS II Operation and Maintenance Manual Release 8 2 6 Commands and Messages ...

Страница 19: ...back DACS II will also send payload and line loopback commands on the ESF data link to far end equipment ordering the equipment on the other end of the DS1 facility to execute the respective loopbacks For TE and TH type NPCs on HDS3Us This command can be used to request DS1 or E1 line loopbacks toward the facility toward a remote multiplexer LOCN NEND as well as remote line loopbacks from a remote...

Страница 20: ...t loopback is active the DS1 or E1 LOCN NEND line loopback will be operating but it results in a circular transmission path for the DS1 or E1 which is most likely undesirable If a loopback is active another loopback request to the same NPC will be denied Local and far end loopbacks are dropped during a system reset or a system reboot Command Nonhierarchical I 26141 OPR LPBK T1 xy s abc ww loop t l...

Страница 21: ...PLD Hierarchical O 26141 xy yy mm dd hh mm ss LINK n vv M OPR LPBK T1 E1 uv m np ww loop t locn COMPLD Denial Message Nonhierarchical O 26141 01 xy yy mm dd hh mm ss LINK n vv M OPR LPBK T1 E1 s abc ww loop t locn DENY mmmm O 26141 01 explanation of error condition code Hierarchical O 26141 01 xy yy mm dd hh mm ss LINK n vv M OPR LPBK T1 E1 uv m np ww loop t locn DENY mmmm O 26141 01 explanation o...

Страница 22: ...s on an HDS3U AIS is always sent downstream NPC Network processing circuit s abc The 3 or 4 digit nonhierarchical NPC number The valid values are as follows except that for TH type NPCs that carry E1s within a Hybrid DS3U all NPC numbers that are divisible by 4 as well as all NPC numbers that end with a D or H are invalid If NPC numbers are expressed in three digits the valid values are DA type NP...

Страница 23: ... Type DT DS3U Unit 1 Unit 2 Unit 3 Unit 4 NPC NPC NPC NPC 0001 0160 0161 0320 0321 0480 0481 0640 Unit 5 Unit 6 Unit 7 Unit 8 NPC NPC NPC NPC 0641 0800 0801 0960 0961 1120 1121 1280 Unit 9 Unit 10 Unit 11 Unit 12 NPC NPC NPC NPC 1281 1440 1441 1600 1601 1760 1761 1920 Unit 13 Unit 14 Unit 15 Unit 16 NPC NPC NPC NPC 1921 2080 2081 2240 2241 2400 2401 2560 Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 N...

Страница 24: ...320 032A 032H 0321 0480 048A 048H 0481 0640 064A 064H Unit 5 Unit 6 Unit 7 Unit 8 NPC NPC NPC NPC 0641 0800 080A 080H 0801 0960 096A 096H 0961 1120 112A 112H 1121 1280 128A 128H Unit 9 Unit 10 Unit 11 Unit 12 NPC NPC NPC NPC 1281 1440 144A 144H 1441 1600 160A 160H 1601 1760 176A 176H 1761 1920 192A 192H Unit 13 Unit 14 Unit 15 Unit 16 NPC NPC NPC NPC 1921 2080 208A 208H 2081 2240 224A 224H 2241 24...

Страница 25: ...NPC NPC 0641 0800 080A 080H 0801 0960 096A 096H 0961 1120 112A 112H 1121 1280 128A 128H Unit 9 Unit 10 Unit 11 Unit 12 NPC NPC NPC NPC 1281 1440 144A 144H 1441 1600 160A 160H 1601 1760 176A 176H 1761 1920 192A 192H Unit 13 Unit 14 Unit 15 Unit 16 NPC NPC NPC NPC 1921 2080 208A 208H 2081 2240 224A 224H 2241 2400 240A 240H 2401 2560 256A 256H Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 NPC NPC NPC NPC...

Страница 26: ...9 080A 080C 080E 080G 0801 0803 0805 0807 0809 0811 0957 0959 096A 096C 096E 096G 0961 0963 0965 0967 0969 0971 1117 1119 112A 112C 112E 112G 1121 1123 1125 1127 1129 1131 1277 1279 128A 128C 128E 128G Unit 9 Unit 10 Unit 11 Unit 12 NPC NPC NPC NPC 1281 1283 1285 1287 1289 1291 1437 1439 144A 144C 144E 144G 1441 1443 1445 1447 1449 1451 1597 1599 160A 160C 160E 160G 1601 1603 1605 1607 1609 1611 1...

Страница 27: ...C numbers that end with a D or H are invalid DA type NPC numbers listed by unit module and NPC Number Unit Type FT FTU TA NPC numbers listed by unit module and NPC Number Unit Type DT DS3U TE NPC numbers listed by unit module and NPC Number Unit Type HT HDS3U TH NPC numbers listed by unit module and NPC Number Unit Type HT HDS3U NOTE The valid TH NPC numbers are 01 03 05 07 09 11 13 15 17 19 21 23...

Страница 28: ...ity is out of service ENEQ Unit is not equipped SAOS UC is out of service SNVS UC is in service but failed ENEQ FTMI is not equipped SAOS FTMI is out of service SNVS NPC type error ENEQ The MXR is not grown SAOS MXR is out of service IPNV Invalid parameter combination SNVS Another signal already active prevents this signal from being sent SAOP This signal is already being sent SNVS No signals acti...

Страница 29: ...by ANSI T1 403 This command can be used to deactivate a DACS II near end payload loopback or to cause DACS II to transmit payload or line loopback deactivate commands on the ESF data link to far end equipment ordering the equipment on the other end of the DS1 facility to deactivate the respective loopbacks For TE and TH type NPCs on Hybrid DS3Us This command can also be used to release a line loop...

Страница 30: ...ge Nonhierarchical O 26151 xy yy mm dd hh mm ss LINK n vv M RLS LPBK T1 E1 s abc ww loop t locn COMPLD Hierarchical O 26151 xy yy mm dd hh mm ss LINK n vv M RLS LPBK T1 E1 uv m np ww loop t locn COMPLD Denial Message Nonhierarchical O 26151 01 xy yy mm dd hh mm ss LINK n vv M RLS LPBK T1 E1 s abc ww loop t locn DENY mmmm O 26151 01 explanation of error condition code Hierarchical O 26151 01 xy yy ...

Страница 31: ... a default 1 544 and 2 048 Mbit s Termination NPC Network processing circuit s abc The 3 or 4 digit nonhierarchical NPC number The valid values are in chapter 2 except that for TH type NPCs that carry E1s within a Hybrid DS3U all NPC numbers that are divisible by 4 as well as all NPC numbers that end with a D or H are invalid For a listing of the nonhierarchical numbering scheme refer to Chapter 2...

Страница 32: ...ror condition code mmmm Explanation ENEQ Subject entity is not equipped SAOS Subject entity is out of service ENEQ Unit is not equipped SAOS UC is out of service SNVS UC is in service but failed ENEQ FTMI is not equipped SAOS FTMI is out of service SNVS NPC type error ENEQ The MXR is not grown SAOS MXR is out of service IPNV Invalid parameter combination SNVS Another signal already active prevents...

Страница 33: ...H type NPC on a Hybrid DS3U then only Hybrid DS3U NPC types are reported on For DA and TA type NPCs loopbacks being executed by far end equipment as well as loopbacks being executed by DACS II are reported For TE and TH type NPCs on Hybrid DS3Us local and remote line loopbacks are the only type of loopbacks that are supported 2 048 Mbit s Termination This command requests a report indicating which...

Страница 34: ...S FIRST NPC MODULE S LAST NPC u ghi u jkl Total Number of NPCs in the FTM in loopback state nnn xy yy mm dd hh mm ss LINK n vv M RTRV STATE EQPT NPC s abc t def ww LPBK COMPLD O 53133 Loopback state of NPC spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp MODULE S FIRST NPC MODULE S LAST N...

Страница 35: ...AST NPC u ghi u jkl Total Number of NPCs in the FTM in loopback state nnn xy yy mm dd hh mm ss LINK n vv M RTRV STATE EQPT NPC s abc t def ww LPBK COMPLD O 53135 Loopback state of NPC opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq MODULE S FIRST NPC MODULE S LAST NPC v mno v pqr Total Number of NPCs in the FTM in loopback state nnn x...

Страница 36: ...uv m aa uv m bb Total Number of NPCs in the FTM in loopback state nnn xy yy mm dd hh mm ss LINK n vv M RTRV STATE EQPT NPC uv m np wx k qr ww LPBK COMPLD O 53133 Loopback state of NPC spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp spp MODULE S FIRST NPC MODULE S LAST NPC wx k aa wx k bb Tot...

Страница 37: ... uv m aa uv m bb Total Number of NPCs in the FTM in loopback state nnn xy yy mm dd hh mm ss LINK n vv M RTRV STATE EQPT NPC uv m np wx k qr ww LPBK COMPLD O 53135 Loopback state of NPC opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq opq MODULE S FIRST NPC MODULE S LAST NPC wx k aa wx k bb Total Number of NPCs in the FTM in loopback state ...

Страница 38: ...PC not specified in the input command d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t MODULE S FIRST NPC MODULE S LAST NPC u ghi u jkl Total Number of NPCs in the FTM in loopback state nnn xy yy mm dd hh mm ss LINK n vv M RTRV STATE EQPT NPC s abc t def ww LPBK COMPLD O 53131 Loopback state of NPC d F Facility loopback...

Страница 39: ...ed in the input command t A loopback with AIS and fpa is off t B loopback with AIS and fpa is on t C transparent loopback without AIS and fpa is off t T transparent loopback without AIS and fpa is on t N NPC not in loopback state t NPC not equipped t 0 NPC not specified in the input command d t Hierarchical O 53131 xy yy mm dd hh mm ss LINK n vv M RTRV STATE EQPT NPC uv m np wx k qr ww LPBK COMPLD...

Страница 40: ...in the input command t A loopback with AIS and fpa is off t B loopback with AIS and fpa is on t C transparent loopback without AIS and fpa is off t T transparent loopback without AIS and fpa is on t N NPC not in loopback state t NPC not equipped t 0 NPC not specified in the input command d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t d t...

Страница 41: ...e Nonhierarchical O 53131 01 xy yy mm dd hh mm ss LINK n vv M RTRV STATE EQPT NPC s abc t def ww LPBK DENY mmmm O 53131 01 explanation of error condition code Hierarchical O 53131 01 xy yy mm dd hh mm ss LINK n vv M RTRV STATE EQPT NPC uv m np wx k qr ww LPBK DENY mmmm O 53131 01 explanation of error condition code Explanation of Parameters LPBK Loopback NPC Network processing circuit If an NPC ra...

Страница 42: ...n s abc The 3 or 4 digit nonhierarchical NPC number start of NPC range t def The 3 or 4 digit nonhierarchical NPC number end of NPC range u ghi Lowest numbered NPC in the FTM that contains NPC s abc v mno Lowest numbered NPC in the FTM that contains NPC t def u jkl Highest numbered NPC in the FTM that contains NPC s abc v pqr Highest numbered NPC in the FTM that contains NPC t def FTM is an acrony...

Страница 43: ...s listed by unit number Unit Type FT FTU Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 NPC NPC NPC NPC NPC NPC 001 160 161 320 321 480 481 640 481 640 801 960 Unit 1 Unit 2 Unit 3 Unit 4 NPC NPC NPC NPC 0001 0160 0161 0320 0321 0480 0481 0640 Unit 5 Unit 6 Unit 7 Unit 8 NPC NPC NPC NPC 0641 0800 0801 0960 0961 1120 1121 1280 Unit 9 Unit 10 Unit 11 Unit 12 NPC NPC NPC NPC 1281 1440 1441 1600 1601 1760 ...

Страница 44: ...NPC 001 160 16A 16H 161 320 32A 32H 321 480 48A 48H 481 640 64A 64H 641 800 80A 80H 801 960 96A 96H Unit 1 Unit 2 Unit 3 Unit 4 NPC NPC NPC NPC 0001 0160 016A 016H 0161 0320 032A 032H 0321 0480 048A 048H 0481 0640 064A 064H Unit 5 Unit 6 Unit 7 Unit 8 NPC NPC NPC NPC 0641 0800 080A 080H 0801 0960 096A 096H 0961 1120 112A 112H 1121 1280 128A 128H Unit 9 Unit 10 Unit 11 Unit 12 NPC NPC NPC NPC 1281 ...

Страница 45: ...001 160 16A 16H 161 320 32A 32H 321 480 48A 48H 481 640 64A 64H 641 800 80A 80H 801 960 96A 96H Unit 1 Unit 2 Unit 3 Unit 4 NPC NPC NPC NPC 0001 0160 016A 016H 0161 0320 032A 032H 0321 0480 048A 048H 0481 0640 064A 064H Unit 5 Unit 6 Unit 7 Unit 8 NPC NPC NPC NPC 0641 0800 080A 080H 0801 0960 096A 096H 0961 1120 112A 112H 1121 1280 128A 128H Unit 9 Unit 10 Unit 11 Unit 12 NPC NPC NPC NPC 1281 1440...

Страница 46: ...unit number Unit Type HT HDS3U Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 NPC NPC NPC NPC NPC NPC 001 003 005 007 009 011 157 159 16A 16C 16E 16G 161 163 165 167 169 171 317 319 32A 32C 32E 32G 321 323 325 327 329 331 477 479 48A 48C 48E 48G 481 483 485 487 489 491 637 639 64A 64C 64E 64G 641 643 645 647 649 651 797 799 80A 80C 80E 80G 801 803 805 807 809 811 957 959 96A 96C 96E 96G ...

Страница 47: ...799 080A 080C 080E 080G 0801 0803 0805 0807 0809 0811 0957 0959 096A 096C 096E 096G 0961 0963 0965 0967 0969 0971 1117 1119 112A 112C 112E 112G 1121 1123 1125 1127 1129 1131 1277 1279 128A 128C 128E 128G Unit 9 Unit 10 Unit 11 Unit 12 NPC NPC NPC NPC 1281 1283 1285 1287 1289 1291 1437 1439 144A 144C 144E 144G 1441 1443 1445 1447 1449 1451 1597 1599 160A 160C 160E 160G 1601 1603 1605 1607 1609 1611...

Страница 48: ...lues are PA PB and PC type NPC numbers listed by unit number Unit Type FT IFTU2 IFTU FTU Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 NPC NPC NPC NPC NPC NPC 001 032 041 072 081 112 121 152 161 192 201 232 241 272 281 312 321 352 361 392 401 432 441 472 481 512 521 552 561 592 601 632 641 672 681 712 721 752 761 792 801 832 841 872 881 912 921 952 ...

Страница 49: ...Unit 2 Unit 3 Unit 4 NPC NPC NPC NPC 0001 0032 0041 0072 0081 0112 0121 0152 0161 0192 0201 0232 0241 0272 0281 0312 0321 0352 0361 0392 0401 0432 0441 0472 0481 0512 0521 0552 0561 0592 0601 0632 Unit 5 Unit 6 Unit 7 Unit 8 NPC NPC NPC NPC 0641 0672 0681 0712 0721 0752 0761 0792 0801 0832 0841 0872 0881 0912 0921 0952 0961 0992 1001 1032 1041 1072 1081 1112 1121 1152 1161 1192 1201 1232 1241 1272...

Страница 50: ...just before EOM or COMPL For FTMs in FTUs or IFTUs each row contains 10 values of output For FTMs within DS3Us each row contains 7 values For FTMs within HDS3Us each row contains 4 values uv wx Unit number m k Module number np qr aa bb NPC number within the module The valid values are DA type NPC numbers listed by unit module and NPC Number Unit Type FT FTU TA NPC numbers listed by unit module and...

Страница 51: ...ing upon the reason for the denial 1 544 Mbit s Termination spp Loopback Type Values of spp are presented in NPC order grouped within messages by Facility Terminating Module FTM For FTMs in Facility Terminating Units each row of output contains 10 values For FTMs in DS3 Units each row of output contains 7 values s Explanation Loopback enabled Loopback disabled The s character is a space pp Explana...

Страница 52: ...a DS2 carries E1 circuits then the fourth position in each row will not show any data It will show dashes instead o Explanation D This is an NPC that carries a DS1 circuit E This is an NPC that carries an E1 circuit This is the fourth position of a DS2 carrying E1s This NPC is not equipped or provisioned This NPC is not in input range pq Explanation FA Line loopback towards facility active with AI...

Страница 53: ...quipment loopback the E type loops the outgoing 2 Mbit s signal back to DACS II equipment This type is not applicable to PB or PC type NPCs N Not in a loopback state NPC not equipped 0 NPC not specified in the input command valid for range commands only t Signal transmission and PM processing specifier for loopback Values of t are presented in NPC order grouped within messages by Facility Terminat...

Страница 54: ...6 April 2000 DACS II Rel 8 2 6 MML RTRV STATE EQPT NPC LPBK 53131 mmmm Error condition code mmmm Explanation ENEQ Unit is not equipped ENEQ FTMI is not equipped SNVS FTMI type error SNVS NPC type error IDNV Invalid CEPT NPC ...

Страница 55: ...Signal AIS It is defined to contain all ones in the terminal to terminal mode B BER Bit Error Rate Byte Usually refers to a group of eight consecutive binary digits but sometimes used for bit groups of other sizes C CEF Capacity Expansion Frame CEPT Conference of European Postal Telecommunications standard E1signal 2 048 Mb s CGA Carrier Group Alarm Cross Connect A piece of hardware used to interc...

Страница 56: ... 0 64 kb s DS1 Digital Signal Level 1 1 544 Mb s DS1 Data Rate The DS1 Data Rate is calculated as follows DS1 24 Channels x 8 bit sample 1 frame bit x 8000 samples sec DS1 193 x 8000 1 544 Mb s DS1 Port A DS1 port in either a DS1 interface module or a DS3 interface module DS3 Digital Signal Level 3 DS3U DS3 Unit E E1 Data Rate The E1 Data Rate is calculated as follows E1 32 Channels x 8 bit sample...

Страница 57: ...ybrid Multiplexer I IDLD Idled Idle An output port is idle if it is not cross connected to an input port Idle Channel A channel on an NPC that has not been cross connected K kb s or kbit s Kilobit Per Second L LOF Loss of Frame Loopback A circuit arrangement that causes a received signal to be returned to its source LOS Loss of Signal ...

Страница 58: ... Megabit Per Second MIU Multipoint Interface Unit MMFG Multiplexer MIU Functional Group or HMXR MIU Functional Group MML HuMan Machine Language a language used by the DACS II MXR Mutliplexer N NPC Network Processing Circuit P PBA Primary Block Alarm PDS Program Documentation Standards a language used by the DACS II ...

Страница 59: ...Issue 2 0 April 2000 GL 5 365 353 255 DACS II Operation and Maintenance Manual Glossary R R16 Remote Alarm Indication in TS16 RAI Remote Alarm Indication RAIS Remote Alarm Indication Signal ...

Страница 60: ...GL 6 Issue 2 0 April 2000 365 353 255 DACS II Operation and Maintenance Manual Glossary ...

Страница 61: ...rm messages 1 9 GT1 5 Querying delay for DS3 alarm messages 1 10 I Introduction 1 3 L loopback process 1 4 O Objectives 1 3 operation 1 4 1 8 OPR LPBK T1 E1 LOCN 2 3 overview 1 4 1 8 R RAI alarm suppression 1 3 1 8 operation 1 8 overview 1 8 RAI alarm supression 1 8 Related information 1 3 Related tasks 1 3 GT1 1 1 6 GT1 2 1 7 GT1 4 1 9 GT1 5 1 10 Remote loopback 1 3 1 4 operation 1 4 overview 1 4...

Страница 62: ...DACS II Feature Guide IN 2 April 2000 Issue 2 0 365 353 255 ...

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