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365-353-255 DACS II Operation and Maintenance Manual Contents Release 8.2.6 Features Background Remote Loopback Feature GT 1.1: Activating a Remote Loopback Test GT 1.2: Deactivating a Remote Loopback Test RAI Alarm Suppression Feature GT 1.3: Changing the Delay for DS3 Alarm Messages GT 1.4: Querying the Delay for DS3 Alarm Messages...
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365-353-255 DACS II Operation and Maintenance Manual Contents Issue 2.0 Issue 2.0April 2000...
Release 8.2.6 Features Contents Background Introduction Objectives Related tasks Related information Remote Loopback Feature Overview Remote Loopback Operation Remote Loopback Process GT 1.1: Activating a Remote Loopback Test When to use Before you begin Related Tasks Task (Continued on next page) Issue 2.0 April 2000...
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365-353-255 Release 8.2.6 Features DACS II Operation and Maintenance Manual Contents GT 1.2: Deactivating a Remote Loopback Test When to use Before you begin Related Tasks Task RAI Alarm Suppression Feature Overview Alarm Suppression Operation GT 1.3: Changing the Delay for DS3 Alarm Messages...
DACS II Operation and Maintenance Manual Background Introduction This chapter describes the DACS II features incorporated into Release 8.2.6. The two features included in this release are: Remote Loopback - the looping of individual DS1/E1 tributaries embedded in an HDS3 signal for path maintenance and troubleshooting.
DS1/E1 signal to a remote loopback request from a remote multiplexer. Remote Loopback 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 Operation multiplexer (far end equipment).
365-353-255 Release 8.2.6 Features DACS II Operation and Maintenance Manual Remote Loopback Feature (Continued) Remote Loopback The following process, illustrated in Figure 1-1, is used to set up the Remote Loopback test: Process The local multiplexer activates the Remote Loopback signal.
365-353-255 Release 8.2.6 Features DACS II Operation and Maintenance Manual GT 1.1: Activating a Remote Loopback Test When to use Use this task to activate a remote loopback test for DS1/E1 tributaries within a Hybrid DS3 signal. A test signal is sent from the local multiplexer to the remote multiplexer, and looped back to the local multiplexer to check the multiplexers at both ends and the facility between them.
365-353-255 Release 8.2.6 Features DACS II Operation and Maintenance Manual GT 1.2: Deactivating a Remote Loopback Test When to use Use this task to deactivate a remote loopback test. Before you begin You must have an existing remote loopback test in progress.
365-353-255 Release 8.2.6 Features DACS II Operation and Maintenance Manual RAI Alarm Suppression Feature Overview The Remote Alarm Indicator (RAI) Alarm Suppression feature provides a way of suppressing the individual DS1/E1 tributary alarms when a DS3 “Yellow Alarm” is detected by the DS3 HMXR card. These individual alarm messages add no new information and quite frequently overload the system with redundant messages.
365-353-255 Release 8.2.6 Features DACS II Operation and Maintenance Manual GT 1.3: Changing the Delay for DS3 Alarm Messages When to use Use this task to change the delay (alarm activate integration) time for issuing DS3 alarms. This delay is the duration between the onset of the DS3 failure and the time when the alarm is displayed.
365-353-255 Release 8.2.6 Features DACS II Operation and Maintenance Manual GT 1.4: Querying the Delay for DS3 Alarm 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.
Release 8.2.6 Commands and Messages Contents OPR,LPBK,T1,E1,LOCN RLS,LPBK,NPC,LOCN 2-13 RTRV,STATE,EQPT,NPC,LPBK 2-17 Issue 2.0 April 2000...
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365-353-255 Release 8.2.6 Commands and Messages DACS II Operation and Maintenance Manual Issue 2.0 April 2000...
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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.
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OPR,LPBK,T1,E1,LOCN DACS II/Rel 8.2.6 26141 Line loopbacks for TE type NPCs provisioned on MXR/EMXR circuit packs (KCR1s/KCR5s), even though provisioned within a Hybrid DS3U, are not supported. An E1 or DS1 line loopback on an HDS3U will be activated without regard to whether a DS3 loopback is already active.
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OPR,LPBK,T1,E1,LOCN DACS II/Rel 8.2.6 26141 Explanation of LPBK Loopback Parameters loop Loopback Type loop Explanation LINE Line PYLD Payload NOTE: For TE and TH type NPCs on an HMXR, LINE is the only option available. Loopback signal transmission specifier Explanation...
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OPR,LPBK,T1,E1,LOCN DACS II/Rel 8.2.6 26141 If NPC numbers are expressed in four digits, the valid values are: DA type NPC numbers listed by unit number, Unit Type FT (FTU): Unit 1 Unit 2 Unit 3 Unit 4 0001-0160 0161-0320 0321-0480...
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OPR,LPBK,T1,E1,LOCN DACS II/Rel 8.2.6 26141 If NPC numbers are expressed in four digits, the valid values are: TA type NPC numbers listed by unit number, Unit Type DT (DS3U): Unit 1 Unit 2 Unit 3 Unit 4 0001-0160 0161-0320 0321-0480...
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OPR,LPBK,T1,E1,LOCN DACS II/Rel 8.2.6 26141 If NPC numbers are expressed in four digits, the valid values are: TE type NPC numbers listed by unit number, Unit Type HT (HDS3U): Unit 1 Unit 2 Unit 3 Unit 4 0001-0160 0161-0320 0321-0480...
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OPR,LPBK,T1,E1,LOCN DACS II/Rel 8.2.6 26141 If NPC numbers are expressed in four digits, the valid values are: TH type NPC numbers listed by unit number, Unit Type HT (HDS3U): Unit 1 Unit 2 Unit 3 Unit 4 0001-0003 0161-0163 0321-0323...
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OPR,LPBK,T1,E1,LOCN DACS II/Rel 8.2.6 26141 uv-m-np Hierarchical NPC number Unit number Module number NPC number within the module 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"...
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OPR,LPBK,T1,E1,LOCN DACS II/Rel 8.2.6 26141 LOCN Location locn Loopback Location locn Explanation NEND Near-end FEND Far-end mmmm Error condition code mmmm Explanation ENEQ Subject entity is not equipped SAOS Subject entity is out of service ENEQ Unit is not equipped...
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The data link is used to communicate between network elements which transport the DS1 facility. This command is used to deactivate near-end (at the DACS II) and far-end (at the terminal on the other end of the DS1 facility) loopbacks on ESF formatted facilities as defined by ANSI T1.403.
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RLS,LPBK,T1,E1 DACS II/Rel 8.2.6 26151 Hierarchical [I.26151] RLS-LPBK-T1:[<xy>]:uv-m-np:[ww]:loop[t]:locn; The following applies to E1 circuits multiplexed within a Hybrid DS3 only [I.26151] RLS-LPBK-E1:[<xy>]:uv-m-np:[ww]:loop[t]:locn; Completion Nonhierarchical Message [O.26151] <xy> yy-mm-dd hh:mm:ss LINK-n[vv] RLS LPBK {T1|E1}::[s]abc:[ww]:loop[t]:locn COMPLD Hierarchical [O.26151] <xy> yy-mm-dd hh:mm:ss LINK-n[vv]...
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RLS,LPBK,T1,E1 DACS II/Rel 8.2.6 26151 /* [O.26151.01] */ /* <explanation of error condition code> */ Explanation of LPBK Loopback Parameters loop Loopback type loop Explanation LINE Line PYLD Payload NOTE: loop=PAYLD is not valid for TE and TH type NPCs.
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RLS,LPBK,T1,E1 DACS II/Rel 8.2.6 26151 divisible by 4 as well as all NPC numbers that end with a "D" or "H" are invalid. For a listing of the hierarchical numbering scheme, refer to Chapter 2, "NPC Numbering and XYZ Parameters."...
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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.
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 1.544 Mbit/s Termination Completion Message Nonhierarchical Output for DA and PA type NPCs [O.53133] <xy> yy-mm-dd hh:mm:ss LINK-n[vv] 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]"...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 Output for TE and TH type NPCs on Hybrid DS3Us [O.53135] <xy> yy-mm-dd hh:mm:ss LINK-n[vv] 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"...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 Hierarchical Output for DA and TA type NPCs [O.53133] <xy> yy-mm-dd hh:mm:ss LINK-n[vv] 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 */ "uv-m-aa:uv-m-bb"...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 Output for TE and TH type NPCs on Hybrid DS3Us [O.53135] <xy> yy-mm-dd hh:mm:ss LINK-n[vv] 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"...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 2.048 Mbit⁄ s Termination Nonhierarchical [O.53131] <xy> yy-mm-dd hh:mm:ss LINK-n[vv] RTRV STATE EQPT::NPC-[s]abc&&-[t]def:[ww]:LPBK COMPLD /* [O.53131] */ /* Loopback state of NPC */ /* d=F - Facility loopback type */] /* d=E - Equipment loopback type */] /* d=N - NPC not in loopback state */] /* d="-"...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 "[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 */ "[v]mno:[v]pqr" /* Total Number of NPCs in the FTM in loopback state */ "nnn" > <xy> yy-mm-dd hh:mm:ss LINK-n[vv] RTRV STATE EQPT::NPC-[s]abc&&-[t]def:[ww]:LPBK COMPLD [O.53132] <xy> yy-mm-dd hh:mm:ss LINK-n[vv] RTRV STATE EQPT::NPC-[s]abc:[ww]:LPBK COMPLD /* [O.53132] */...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 /* 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,[d]t,[d]t,[d]t,[d]t" /* MODULE’S FIRST NPC:MODULE’S LAST NPC */ "uv-m-aa:uv-m-bb" /* Total Number of NPCs in the FTM in loopback state */ "nnn"...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 /* d="-" - NPC not equipped */] /* d=0 - NPC not specified in the input command */] /* t=A - loopback with AIS and fpa is off */ /* t=B - loopback with AIS and fpa is on */]...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 If the first NPC in the range is a TE or TH type NPC on a Hybrid DS3U, then only those type of NPCs will be reported on. If the first NPC in the range is a PA, PB, or PC type...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 If NPC numbers are expressed in three digits, the valid values are: DA type NPC numbers listed by unit number, Unit Type FT (FTU): Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 If NPC numbers are expressed in three digits, the valid values are: TA type NPC numbers listed by unit number, Unit Type DT (DS3U): Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 If NPC numbers are expressed in three digits, the valid values are: TE type NPC numbers listed by unit number, HT (HDS3U):: Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 001-160...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 If NPC numbers are expressed in three digits, the valid values are: TH type NPC numbers listed by unit number, Unit Type HT (HDS3U): Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 If NPC numbers are expressed in four digits, the valid values are: TH type NPC numbers listed by unit number, Unit Type HT (HDS3U): Unit 1 Unit 2 Unit 3 Unit 4 0001-0003 0161-0163 0321-0323...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 If NPC numbers are expressed in three digits, the valid values 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...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 If NPC numbers are expressed in four digits, the valid values 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...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 The parameter value for NPC bb is just before EOM or COMPL. wx-k-aa Lowest numbered NPC in the FTM that contains NPC wx-k-qr The parameter value for NPC aa is in the first position, first line of the message.
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 TH NPC numbers listed by unit, module, and NPC Number Unit Type HT (HDS3U) Unit Module 01 - 16 1 - 6 01 - 28 NOTE: The valid TH NPC numbers are: 01-03, 05-07, 09-11, 13-15, 17-19, 21-23, 25-27.
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 53131 NPC not specified in input range command NPC not equipped, or non-ANSI type Loopback Type Values of "opq" are presented in NPC order, grouped within messages by DS2s. Since there are 7 DS2s within a Hybrid DS3, seven rows are generated in the output message, one for each DS2.
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Facility loopback, the F type loops the incoming 2 Mbit/s bipolar signal back to the facility. Equipment 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. Not in a loopback state...
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RTRV,STATE,EQPT,NPC,LPBK DACS II/Rel 8.2.6 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 2-38 DACS II/Rel 8.2.6 April 2000...
365-353-255 DACS II Operation and Maintenance Manual Glossary Alarm Indication Signal (also known as all 1s signal). Alarm Indication Signal (AIS) A signal transmitted downstream to indicate that network transmission line failures were detected upstream. All Ones Signal Another name for DS1 Alarm Indication Signal (AIS). It is defined to contain all ones in the terminal-to-terminal mode.
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365-353-255 Glossary DACS II Operation and Maintenance Manual DACS Digital Access and Cross-Connect System. Default A value the system automatically uses for a parameter if you do not specify a value. Demultiplexer A device used with a multiplexed signal for recovering signals contained within it and restoring the distinct individual channels of these signals.
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365-353-255 Glossary DACS II Operation and Maintenance Manual HDS3 Hybrid DS3. HDS3U Hybrid DS3 Unit. HMXR Hybrid Multiplexer. 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.
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Multipoint Interface Unit. MMFG Multiplexer-MIU Functional Group or HMXR-MIU Functional Group. HuMan-Machine Language (a language used by the DACS II). Mutliplexer. Network Processing Circuit. Primary Block Alarm. Program Documentation Standards (a language used by the DACS II). GL-4 Issue 2.0 April 2000...
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365-353-255 Glossary DACS II Operation and Maintenance Manual Remote Alarm Indication in TS16. Remote Alarm Indication. RAIS Remote Alarm Indication Signal. Issue 2.0 April 2000 GL-5...
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365-353-255 Glossary DACS II Operation and Maintenance Manual GL-6 Issue 2.0 April 2000...
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