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Avaya CS 1000 Maintenance Manual

Avaya CS 1000 Maintenance Manual

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ISDN Primary Rate Interface Maintenance
Avaya Communication Server 1000
7.5
NN43001-717, 05.04
November 2011

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Summary of Contents for Avaya CS 1000

  • Page 1 ISDN Primary Rate Interface Maintenance Avaya Communication Server 1000 NN43001-717, 05.04 November 2011...
  • Page 2 Product provided by Avaya including the selection, arrangement and While reasonable efforts have been made to ensure that the design of the content is owned either by Avaya or its licensors and is information in this document is complete and accurate at the time of protected by copyright and other intellectual property laws including the printing, Avaya assumes no liability for any errors.

  • Page 3: Table Of Contents

    Navigation..............................11 Getting technical documentation....................... 11 Getting product training..........................11 Getting help from a distributor or reseller....................11 Getting technical support from the Avaya Web site.................. 12 Chapter 3: Introduction...................... Subject..............................13 Note on legacy products and releases..................... 13 Applicable systems........................... 13 System migration..........................
  • Page 4 Trace a call............................35 Trace function 01..........................35 Example 1: Successful call with trace function 01................36 Example 2: Unsuccessful call with trace function 01................ 36 Trace function 02..........................37 Feature requirements........................37 Chapter 6: Primary Rate Interface maintenance.............. Contents..............................39 PRI commands (LD 60)..........................
  • Page 5 Free run (non-tracking) mode......................78 Reference clock errors........................78 Automatic clock recovery......................... 79 Automatic clock switching........................ 79 Clock controller commands (LD 60)......................80 Replace the clock controller........................81 Task summary list..........................81 Set switches............................. 82 Clock controller cabling..........................83 Chapter 9: ISDN Signaling Link maintenance..............Contents..............................
  • Page 6 NTAK20 power on self-test....................... 108 NTAK93 self-test..........................108 DTI/PRI local self-test........................108 Restrictions and limitations....................... 109 DTI/PRI automatic local loopback test..................... 109 Remote loopback and remote self-test..................... 110 DTI/PRI error detection........................111 Frame slip............................113 Alarm threshold recommendations for digital trunks................ 119 Clock operation..........................
  • Page 7 B-channel status change........................149 Channel status audit......................... 149 Service message commands......................149 2.0 Mb PRI error detection....................... 149 Group I errors........................... 150 Group 2 errors..........................154 System PRI maintenance tools......................... 158 DCHI commands..........................159 DDCH commands..........................160 Clock controller commands......................160 Link diagnostic and remote loop back tests..................
  • Page 8 ISDN Primary Rate Interface Maintenance November 2011...

  • Page 9: Chapter 1: New In This Release

    Chapter 1: New in this release The following sections detail what’s new in this document for Avaya Communication Server 1000 Release 7.5. Feature changes There are no updates to the feature descriptions in this document. Other changes This section provides information about changes that are not feature-related.
  • Page 10 • ISDN PRI: Maintenance, 553-2901-501 • 1.5Mb DTI/PRI Description, Installation and Maintenance, 553-3011-310. Content from 2.0Mb DTI/PRI Description, Installation and Maintenance, 553-3011-310 also appears in Avaya ISDN Primary Rate Interface Installation and Commissioning (NN43001-301). • 2.0Mb DTI/PRI Description, Installation and Maintenance, 553-3011-315 2.0.

  • Page 11: Chapter 2: Customer Service

    Chapter 2: Customer service Visit the Avaya Web site to access the complete range of services and support that Avaya provides. Go www.avaya.com or go to one of the pages listed in the following sections. Navigation • Getting technical documentation on page 11 •...

  • Page 12: Getting Technical Support From The Avaya Web Site

    Customer service Getting technical support from the Avaya Web site The easiest and most effective way to get technical support for Avaya products is from the Avaya Technical Support Web site at www.avaya.com/support. ISDN Primary Rate Interface Maintenance November 2011...

  • Page 13: Chapter 3: Introduction

    Chapter 3: Introduction This document is a global document. Contact your system supplier or your Avaya representative to verify that the hardware and software described are supported in your area. Subject This document provides maintenance procedures for ISDN Primary Rate Interface (PRI) capability on Avaya Communication Server 1000 systems.

  • Page 14: Intended Audience

    Introduction Table 1: Meridian 1 systems to CS 1000 systems This Meridian 1 system... Maps to this CS 1000 system Meridian 1 PBX 11C Chassis CS 1000E Meridian 1 PBX 11C Cabinet CS 1000E Meridian 1 PBX 61C CS 1000M Single Group...

  • Page 15: Technical Documentation

    • Avaya Features and Services Fundamentals (NN43001-106) • Avaya Software Input Output Administration (NN43001-611) • Avaya Software Input Output Reference - Maintenance (NN43001-711) Online To access Avaya documentation online, click the Documentation link under Support on the Avaya home page: http://www.avaya.com ISDN Primary Rate Interface Maintenance...
  • Page 16 Introduction ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 17: Chapter 4: Pri Fault Clearing

    Chapter 4: PRI fault clearing Contents This section contains information on the following topics: PRI Red alarm (local alarm) on page 17 PRI Yellow alarm (remote alarm) on page 19 PRI problems on page 19 D-channel problems on page 21 PRI Red alarm (local alarm) A PRI local alarm can indicate: •...

  • Page 18: Channel Restoration

    LD 60 STAT (loop) 2. Check PRI alarm counters using the following prompts: LD 60 LCNT (loop) 3. See Table 2: PRI problem solving on page 20 for solutions to possible PRI problems. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 19: Pri Yellow Alarm (Remote Alarm)

    PRI Yellow alarm (remote alarm) PRI Yellow alarm (remote alarm) A remote alarm on the system indicates the far end is out of service. The fact that the PRI is receiving the remote-alarm pattern indicates that there is transmission integrity, but the far end is not ready.
  • Page 20 • PRI 000PRI is responding • DTA 005 remote alarm occurred DCH 1010 DCHI is software disabled See above, under No connection to far end. Or, there is no 1.5 Mb/2Mb connection, indicated by: ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 21: D-Channel Problems

    D-channel problems Symptom Action • PRI 000 PRI is responding • DTA 021 loss of frame alignment for 3 seconds • DCH 1010 DCHI is software disabled The system initializes and there are no active When a PRI or ISL trunk interfaces with B-channels.
  • Page 22 PLOG DCH N Check the DCHI-to-PRI cable. Check DCHI card jumper settings. Check to see that one system is designated as "master" (usually the larger system), and the other as "slave." ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 23: Chapter 5: Quick Reference To Pri Operations

    Chapter 5: Quick reference to PRI operations Contents This section contains information on the following topics: PRI commands (LD 60) on page 24 PRI messages on page 25 DCHI quick reference on page 25 D-channel commands (LD 96) on page 25 DCH messages on page 27 MSDL commands...

  • Page 24: Pri Commands (Ld 60)

    DIS. Before installing a card, hardware-disable it by setting the switch to DIS. After the card is locked into position, set the switch to ENB, and then enable the card in software. Disable and enable cards as described in Avaya Software Input Output Administration, NN43001-711.

  • Page 25: Pri Messages

    STAT l ch Get status of channel ch. PRI messages Refer to Avaya Software Input Output Reference - System Messages (NN43001-712) for commonly encountered PRI messages. DCHI quick reference The D-channel Interface (DCHI) card provides an asynchronous port and the DCHI port. The D-channel performs the call setup and call modification signaling for one or more 30-channel PRI cards.
  • Page 26 Stop the data interface establishment process. RST DCH x Reset D-channel x, inhibit signaling. RST MON Reset or reactivate monitoring on D-channels with enabled monitors. SDCH DCH x Switch to the standby D-channel x. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 27: Dch Messages

    Perform interrupt handler test on DCH x. TEST 201 x Test interrupt handler-to-link interface path. DCH messages Refer to Avaya Software Input Output Reference - System Messages (NN43001-712) for commonly encountered D-channel (DCH) messages. MSDL commands Table 6: MSDL D-channel commands on page 28 is a partial list of Multi-purpose Serial Data Link (MSDL) D-channel commands.

  • Page 28: Maintenance Service Messages

    When the near-end status and far-end status do not match, the more severe maintenance status takes effect over the less severe maintenance status. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 29: Service Message Function

    Maintenance service messages Table 7: Maintenance message status Near-end status Far-end status B or ISL channel capability for near-end In-service In-service both incoming and outgoing calls allowed In-service Maintenance only incoming calls allowed In-service Out-of-service not allowed to use Maintenance not allowed to use Out-of-service not allowed to use...

  • Page 30: Service Message Commands

    (for example, correctly cabled) and operational. If the PRI status is not as shown in the steps below, complete the check and proceed to PRI fault clearing procedures. Once all problems are cleared, go to PRI startup on page 32. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 31 PRI status check Table 8: Procedure 4 PRI status check Step Action Response Check the status LEDs on all PRI For normal operation, only the green cards. ACT LED is lit. Note whether any other LED is lit and continue with the status check. Check the LED on the DCHI faceplate.

  • Page 32: Pri Startup

    This procedure provides the steps required to take the PRI and DCH from a disabled to an operational state. Table 9: Procedure 5 PRI status check Step Action Response Check the status of all PRI cards. The PRI shown is disabled. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 33 PRI startup Step Action Response If any other LEDs are lit, go to PRI fault clearing. Test all PRIs using: SLFT OK LD 60 DISL loop SLFT L Enable all PRIs using: PRI000 Correct version ID DTA005 remote alarm LD 60 DTA007 remote alarm cleared ENLL L...

  • Page 34: Network Call Trace

    • Enter NCT in response to prompt RCAP in LD 17 for each D-channel. • Enter CLTA in response to prompt CLS in LD 10 or LD 11 to allow a telephone to trace calls. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 35: Trace A Call

    Network Call Trace Trace a call A call can be traced from any attendant console or a telephone with CLTA class of service. To trace a call, dial the following: SPRE + 9912 + xx + yyy... • SPRE = special function access code (defined in LD 15) •...

  • Page 36: Example 1: Successful Call With Trace Function 01

    **** NCT # 22 **** NODE ORIG (SL1) SID 0 RLS 17 53 --- OUT --- TNS 0 0 5 1 MODE UNKN --- STATE --- DGT 786000 STAT REJ LOC 99 ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 37: Trace Function 02

    Network Call Trace Trace function 02 Call trace function 02 provides the information from the active (main) call register, the incoming call state, and the outgoing call state (if any). Trace function 02 is intended as a debugging tool for system designers. The information output by function 02 includes the following: NODE ORIG,TAND,TBD SID xxxx—system identifier RLS xx xx—release of software, issue number of node TNS l s c u—TN of the originating set CREF xxxx—call reference number...
  • Page 38 Quick reference to PRI operations When a remote system without NCT capability receives a Call Trace message, no call trace information is returned. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 39: Chapter 6: Primary Rate Interface Maintenance

    Chapter 6: Primary Rate Interface maintenance Contents This section contains information on the following topics: PRI commands (LD 60) on page 40 PRI alarm commands on page 41 PRI test commands on page 42 PRI tests on page 43 PRI self-test on page 43 PRI automatic loop test on page 44...

  • Page 40: Pri Commands (Ld 60)

    ENBL = Hardware of specified digital loop is enabled RLBK = Hardware of specified digital loop is in remote loop back mode DISI PENDING = DSI command is in progress TRACKING = System clock is tracked to this loop ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 41: Pri Alarm Commands

    PRI alarm commands Command Description IDLE = Hardware of specified digital loop is idle When AAA = TIE, IDLE ISPC indicates that the channel is an established ISPC link ready to be used by any end users having access to the associated ISPC route.

  • Page 42: Pri Test Commands

    Invokes PRI self-test on loop L. The loop must be disabled because the test disrupts call processing. SLFT L CH Invokes partial PRI hardware self-test using channel CH of loop L. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 43: Pri Tests

    PRI tests Command Description RLBK L Closes the loop at the carrier interface point of the PRI so the far end can perform an external loopback test. PRI loop L must be disabled because the test disrupts call processing. DLBK L Disables the remote loopback test per RLBK L.

  • Page 44: Pri Automatic Loop Test

    The link-diagnostic test, also called the far-end loopback test, does not test the local PRI. It puts the PRI in loopback mode so a remote loopback test can be performed on equipment at the far end. The PRI channel or frame being tested must be disabled. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 45 PRI tests Remote loopback test The remote loopback test, also called the near-end loop-back test, checks the integrity of the PRI from the near end to the far end. The far end must be in loopback mode before this test can be performed.

  • Page 46: Pri Error Detection

    In a bipolar pulse stream, pulses alternate in polarity. A bipolar violation has occurred if, after transmission, two pulses of the same polarity are received in succession (this could be caused by an electrical disturbance such as noise). ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 47: Cyclic Redundancy Check (Crc)

    PRI error detection Figure 3: Bipolar violations Cyclic redundancy check (CRC) The Extended Superframe Format (ESF) contains a checksum of all the data in the frame. The receiving side uses the checksum to verify the data. The primary difference between BPV and CRC is that bipolar violation tracking indicates errors on the local span, while CRC indicates errors on an end-to-end span.

  • Page 48: Frame Slip

    >10-6 (1.54 BPV per s) 663.9 1025 most tolerant Frame slip Digital signals must have accurate clock synchronization for data to be interleaved into or extracted from the appropriate timeslot during multiplexing and demultiplexing operations. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 49 PRI error detection Frame slip monitoring detects frame deletion and repetition errors in clock synchronization. Figure 5: DTA messages on page 49. Clock synchronization can be either tracking, on the primary or secondary reference clock, or free run (non-tracking). In LD 73 (prompts PREF and SREF), one PRI may be defined as the primary clock reference.

  • Page 50: Frame Alignment

    There are three frame alignment thresholds set in LD 73. When a maintenance or out-of- service threshold is reached, a DTA message is output as follows: DTA019: Frame alignment maintenance limit DTA020: Frame alignment out-of-service limit ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 51 PRI error detection Figure 7: Frame alignment If a loss of frame alignment condition persists for three seconds, the affected PRI loop is taken out of service and a Red alarm (local alarm) is raised. See Figure 8: Frame alignment loss page 51.

  • Page 52: Tn-To-Channel Number Conversion

    1 7 0 2 2 0 2 8 0 0 6 0 2 1 0 2 6 0 2 2 0 1 2 0 2 3 0 2 8 0 2 4 0 ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 53: Use The Error Counter

    Use the error counter Channel number D2 format TN (S C U) D3, D4,E SF format TN (S C 0 4 0 2 5 0 2 4 0 2 6 0 1 8 0 2 7 0 3 8 0 3 8 0 Use the error counter The error counter detects bipolar violations or no-signal periods.

  • Page 54: Replace The Pri

    DIS. Before installing a card, hardware-disable it by setting the switch to DIS. After the card is locked into position, set the switch to ENB, and then enable the card in software. Disable and enable cards as described in Avaya Software Input Output Administration, NN43001-711.

  • Page 55: Pulsed E And M Dti2 Signaling

    Pulsed E and M DTI2 signaling 4. Make sure that the new PRI card switch settings are the same as the faulty PRI card. 5. Install the new PRI card in the appropriate slot. 6. Connect the network loop cable, the carrier interface cable, and the echo canceller cable.

  • Page 56: Diagnostics

    MAIN PM ESTD TALKSLOT ORIG 15 QUEU NONE The SENT bits indicate the steady state on the line once the pulse is complete. The RECV bits indicate the last bit pattern received on the trunk channel. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 57: Chapter 7: D-Channel Maintenance

    Chapter 7: D-channel maintenance Contents This section contains information on the following topics: DCH commands (LD 96) on page 57 DCH tests on page 61 DCH tests 100 and 101 on page 61 DCH tests 200 and 201 on page 62 DCH traffic (LD 2) on page 64 TFS009 D-channel...
  • Page 58 This set-based filtering is enhanced for UIPE proprietary messages. DIS SERV x Disable service messages on D-channel x DLIF DCH x Force download of D channel x (For PRI UIPE application). ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 59 DCH commands (LD 96) Command Description ENL AUTO x Enable automatic recovery for DCH x. ENL DCH x (FDL) Enable DCH x and attempt to establish the link, and force download to MSDL. ENL MSGI x (options) Enable the monitoring of incoming messages on D- channel x.
  • Page 60 Display the incoming and outgoing monitoring status of one or all D-channels. STAT SERV (x) Get the enable/disable status of services messages for one or all D-channels. STAT TMDI (x FULL) Get TMDI status x. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 61: Dch Tests

    DCH tests DCH tests There are four types of DCH tests. They are: • DCH test 100 • DCH test 101 • DCH test 200 • DCH test 201 The DCH tests 100 and 101 are hardware tests, while the 200 and 201 test the DCH software.

  • Page 62: Dch Tests 200 And 201

    If either test fails, software problems are indicated. A test failure initiates DCH error messages. Tests 200 and 201 must be run sequentially after tests 100 and 101. Established calls stay up, but new calls cannot be placed ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 63 DCH tests Testing DCHI software 1. Log in to the overlay system. Then, enter overlay program 96 by entering the command LD 96 2. If the DCHI link is disabled, it must be enabled by entering the commands STAT DCH N (responds DSBL ENL DCH N(if a problem caused the disabled state, RLS will occur;...

  • Page 64: Dch Traffic (Ld 2)

    To enable D-channel measurement in the scheduled traffic reports, use the Set System Traffic Options (SOPS) command. For example, to enable option 9 for D-channel use: LD 2 ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 65: Tfs009 D-Channel

    DCH traffic (LD 2) SOPS 9 To print current D-channel measurement use the Invoke System Traffic (INVS) command. For example, to enable option 9 for D-channel use: LD 2 INVS 9 TFS009 D-channel TFS009 reports traffic activity for D-channels. Eight fields report activity on the Multi-purpose Serial Data Link (MSDL) D-channel.
  • Page 66 D-channel oooo number of all outgoing call processing messages sent on the D- channel pppp number of all outgoing management messages sent on the D- channel ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 67 DCH traffic (LD 2) qqqq number of all outgoing maintenance messages sent on the D- channel rrrr average number of outgoing bytes per message ssss accumulated real time a D-channel was busy transferring outgoing messages in half-millisecond units (Divide the reported number by 2 for a result in milliseconds.

  • Page 68: Msdl Local Loopback Test (Nt6D80)

    The response for the ring interface that transmits operation data between the system CPU and the MSDL MPU follows: DCH : X DU TEST CONFIRM TIME : <time of day> TEST : PASS (or FAIL) ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 69 3. If the card passed the test, the problem may lie in incompatible software. After completing the test, remove the D-channel from the test state: DIS TEST x. Refer to Avaya Circuit Card Reference (NN43001-311). See Figure 12: Local loopback test (NT6D80) on page 70.

  • Page 70: Msdl Remote Loopback Tests (Nt6D80)

    MSDL remote loopback tests (NT6D80) Before beginning this test, verify the following: • D-channels on both switches are configured on MSDL cards • DCH links on both switches are set to TEST mode ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 71 DIS MSDL x SLFT MSDL x 7. If the card passed the test, the problem may lie in incompatible software. Refer to Avaya Circuit Card Reference (NN43001-311). 8. After the test is complete, remove both sides from the test state:...

  • Page 72: Protocol Log (Plog)

    LD 96 as shown in the PLOG status check below. Protocol errors can be the result of: • PRI transmission problems and re-start procedures, or • a protocol mismatch with the far end ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 73 Protocol log (PLOG) The PLOG counters are cleared after: • the PLOG is printed, or • the DCHI card is enabled Note: When a protocol counter overflows, the PLOG is printed automatically and the counters are cleared. When the PLOG has non-zero counters, check the PRI status and alarms as shown in Checking the PLOG status on page 73.
  • Page 74 3 messages from system missing mandatory IE(s) count of layer 3 messages from system containing unsupported IE(s) count of layer 3 messages from system containing invalid operational IE(s) ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 75: Replace The Dchi

    5. Remove the DCHI from the shelf. 6. Make sure that the new DCHI card switch settings are the same as the faulty DCHI card. See Avaya ISDN Primary Rate Interface Installation and Commissioning (NN43001-301) and Avaya Circuit Card Reference (NN43001-311) for switch- setting information.

  • Page 76: Ld 60 - Loop Maintenance For Sys-12, Axe-10, Swe, Swissnet, Numeris, Euroisdn, Neax-61, Asia-Pacific

    76 Table 21: Meridian 1SYS- 12, AXE- 10 SWE, NUMERIS, SWISSNET, EuroISDN, NEAX-61 channel timeslot mapping Channel Meridian 1 Network Timeslot B-channel 1-15 16-30 1-15 17-31 1-15 17-31 D-channel ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 77: Chapter 8: Clock Controller Maintenance

    Chapter 8: Clock controller maintenance Contents This section contains information on the following topics: Clock operation on page 77 Tracking mode on page 77 Free run (non-tracking) mode on page 78 Reference clock errors on page 78 Automatic clock recovery on page 79 Automatic clock switching on page 79...

  • Page 78: Free Run (Non-Tracking) Mode

    • the primary and secondary references are disabled • the primary and secondary references are in local alarm Reference clock errors System software checks every 0-15 minutes (programmable) to see if a clock-controller or reference-clock error has occurred. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 79: Automatic Clock Recovery

    Clock operation In tracking mode, at any one time, there is one active clock controller which is tracking on one reference clock. If a clock-controller error is detected, the system switches to the backup clock controller, without affecting which reference clock is being tracked. A reference-clock error occurs when there is a problem with the clock driver or with the reference system clock at the far end.

  • Page 80: Clock Controller Commands (Ld 60)

    Switches the system clock from the active to the standby clock. The reference-clock source remains unchanged. TRCK xxx Set clock-controller tracking where xxx represents one of the following mnemonics: PCKtrack primary clock SCLKtrack secondary clock FRUNfree-run mode ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 81: Replace The Clock Controller

    Replace the clock controller Replace the clock controller Task summary list The following is a summary of the tasks in this section: Replace the clock controller. Refer to Replacing the clock controller on page 81. Caution: Firmly touch the metal frame of the cabinet to discharge static electricity from your body before handling circuit packs.

  • Page 82: Set Switches

    12. Verify normal service level; first, switch the active clock to standby using: LD 60 SWCK x If an error message results, refer to Avaya Communication Server 1000M and Meridian 1 Large System Maintenance (NN43021-700) for the interpretation. Note: Switching clock controllers using LD 60 will generate ERR20 messages.

  • Page 83: Clock Controller Cabling

    Clock controller cabling System If there is only one clock controller card in the system, set to OFF. If there are two clock controller cards, set to match the cable length between the J3 faceplate connectors. Determine the total cable length (no single cable can exceed 25 ft.) between the J3 connectors.
  • Page 84 Clock controller maintenance Figure 15: Clock controller cabling: Half Group systems ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 85 Clock controller cabling Figure 16: Clock controller cabling: Single Group systems ISDN Primary Rate Interface Maintenance November 2011...
  • Page 86 Clock controller maintenance Figure 17: Clock controller cabling Multi Group systems ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 87: Chapter 9: Isdn Signaling Link Maintenance

    Chapter 9: ISDN Signaling Link maintenance Contents This section contains information on the following topics: ISL status formats on page 87 Print programs (LD 20, 21, 22) on page 88 ISL startup on page 89 Dedicated D-channel using DTI or PRI on page 89 ISL recovery on page 90...

  • Page 88: Print Programs (Ld 20, 21, 22)

    88). To list ISL trunk TNs, use the following prompts: REQPRT TYPEISLL Table 28: Additional ISL information provided in LD 21 Cust # ISL Trunk TN Channel ID DCH # Route # l s c u l s c u ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 89: Isl Startup

    ISL startup ISL startup In general, the procedures for bringing up the D-channel are the same as the ISDN PRI interface (see the PRI startup section). However, some additional procedures are required when ISL is configured in the dedicated mode using DTI or PRI trunks. Dedicated D-channel using DTI or PRI When the D-channel is configured in the dedicated mode using a DTI or PRI trunk, an Asynchronous Data Module (ADM), an Asynchronous/ Synchronous Interface Module (ASIM),...

  • Page 90: Isl Recovery

    The Radio Frequency Interference (RFI) filter connectors are attached to the QCAD42 cable. To install the RFI filters, see the instructions for installing the EMI filters in the system installation documents. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 91: Chapter 10: Universal Digital Trunk Card Maintenance

    Chapter 10: Universal Digital Trunk card maintenance Contents This section contains information on the following topics: Enable UDT card on page 91 Maintenance and diagnostics on page 93 Enable UDT card Enable the UDT card in Call Server, as described in the following sections. Enable UDT card configured as PRI/PRI2 1.

  • Page 92: Enable Udt Card Configured As Dti/Dti2

    TRCK aaa l s (Where aaa is: PCK = track primary clock SCLK = track secondary clock FRUN = free run mode) 3. Check the status of the system clock on the specified superloop and shelf SSCK l s ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 93: Maintenance And Diagnostics

    Maintenance and diagnostics Maintenance and diagnostics This section describes the maintenance and diagnostic programs used on the Call Server for the UDT card. LD programs LD 60 Digital trunk loop and clock controller maintenance Table 29: LD 60 Digital trunk loop maintenance Commands Description DISI loop...

  • Page 94: Ld 96 D-Channel And Msdl Maintenance

    STAT MSDL (l s c (full)) Get MSDL status X, or a “FULL STATUS” LD 75 IDA (DPNSS/DASS2) loop and D-channel maintenance Table 32: LD 75 IDA (DPNSS/DASS2) loop and D-channel maintenance Commands Description ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 95: Udt Card Startup And Status Check

    Maintenance and diagnostics ENL DDSL n Enable DDSL, port n ENL DDCS l Enable DDCS loop l ENL DTRC l c Enable real channel (loop, channel) DIS DDSL n Disable DDSL, port n DIS DDCS l Disable DDCS loop n DISI DDCS l Disable all channels, loop l as they become idle.

  • Page 96: Udt Card Dti

    Check the EN/DIS status LED on UDT The EN/DIS LED is green . Check the status of the DTI loop: LD 60 STAT L List DTI alarm counters: LD 60 LCNT (L) (Check the out-of-service counters) ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 97: Udt Card Dpnss/Dass2

    Maintenance and diagnostics UDT card DPNSS/DASS2 For IDA Startup, follow the steps in the following table. Table 37: DPNSS/DASS2 startup procedure Step Action Response Check the status of the DPNSS/DASS2 The EN/DIS LED is red The DCH LED is Enable DDCS: LD 75 ENL DDCS l DDCS l is enabled Enable the DDSL: LD 75 ENL DDSL n ENBL IDLE (DDSL enabled, but all...
  • Page 98 Universal Digital Trunk card maintenance ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 99: Chapter 11: 1.5 Mb Dti/Pri Maintenance

    Chapter 11: 1.5 Mb DTI/PRI maintenance Contents This section contains information on the following topics: Overview on page 99 Monitor DTI/PRI operation on page 100 DTI/PRI maintenance tools on page 103 Overview From a maintenance perspective, DTI/PRI operation consists of these major elements: •...

  • Page 100: Monitor Dti/Pri Operation

    D-channel status and error conditions are reported as DCH messages. PRI status and error conditions are shown in Table 39: Maintenance messages on page 100. Additional information on PRI and DCH messages can be found in the Avaya Software Input Output Reference - System Messages (NN43001-712). Table 39: Maintenance messages Message...

  • Page 101: Message Functions

    Monitor DTI/PRI operation The status reported by the service and service acknowledge messages for B-channels and ISL channels are: • in-service • maintenance • out-of-service Near-end and far-end sub-categories are defined for each maintenance status. See Table 40: Maintenance message and status combinations on page 101 for possible combinations of near-end and far-end statuses, and the channel capability for each status.

  • Page 102: Alarms

    A Yellow alarm on the system, indicated by the state of the YELLOW LED on the PRI/DTI circuit card, is notification of a Red alarm at the far end (remote end). The fact that the PRI/DTI circuit ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 103: Dti/Pri Red Alarm (Local Alarm)

    DTI/PRI maintenance tools card is receiving the Yellow alarm pattern indicates that there is a T1 connection, but the far end is not ready. It is possible, however, that the T1 connection is one-way only — that is, receiving only, since this end is receiving the alarm.
  • Page 104 N. Use only under light traffic. EST DCH N Establish D-channel N. PLOG DCH N Print D-channel statistics log N. RLS DCH N Release D-channel N. SDCH Release a D-channel and switch D-channels. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 105 DTI/PRI maintenance tools Command Action RST DCH N Reset D-channel N. STAT DCH (N) Print D-channel status (link status). STAT MSGI (N) Print incoming message monitor status. STAT MSGO (N) Print outgoing message monitor status. TEST-100/101/200/201 See DCH tests in technical document. STAT SERV Print the current service and service acknowledge message for DCHI N.

  • Page 106: Tmdi Maintenance Commands

    3 should be established within about 30 seconds. RST TMDI x Reset TMDI card x. SLFT TMDI x Invoke self-test on TMDI card x. STAT TMDI (x FULL) Get TMDI status. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 107: D-Channel Monitoring On The Tmdi Card

    Print monitoring commands for TMDI card x. D-channel status and error conditions are reported as DCH messages. These messages can be found in the Avaya Software Input Output Reference - System Messages (NN43001-712). Table 47: Clock controller commands (LD 60)

  • Page 108: Ntak20 Power On Self-Test

    The local self-test, also called a local loopback test, checks speech path continuity, zero code suppression, remote alarm detection, and A and B bit signalling. This test is performed manually on a per-loop (or link 24 channels) or per-channel basis. The local loopback test ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 109: Restrictions And Limitations

    DTI/PRI maintenance tools performs a local logical loopback and does not require any external loopback of the T-1 signal. Restrictions and limitations Disable the DCHI and DTI/PRI before performing the self-test on the entire DTI/PRI card. Individual channels must be disabled before performing a self-test on a particular channel. Self-testing the DTI/PRI card To perform a self-test on the entire DTI/PRI card: 1.

  • Page 110: Remote Loopback And Remote Self-Test

    LD 96 to disable the DCHI (for PRI DCHL or BCHL): DIS DCH N c. Enter the following command in LD 96 to disable the DTI/PRI card and run loopback test: ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 111: Dti/Pri Error Detection

    DTI/PRI maintenance tools DISL C RMST C Note: The Remote self-test (external loopback test) can be run through any loopback that is external to the DTI/PRI card. The loopback can range from a loopback connector plugged into the NTBK04 cable to a remote loopback on the far-end DTI/PRI, or at any point in between on the DS-1 facility.
  • Page 112 DTA011 Bit error rate maintenance threshold has been reached. DTA012 Bit error rate out-of-service limit has been reached. DTA013 Too many bit error rate out-of-service occurrences in the last 24 hours. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 113: Frame Slip

    DTI/PRI maintenance tools Refer to Figure 20: BIPV and BIPC thresholds on page 113 for BIPV and BIPC thresholds. Figure 20: BIPV and BIPC thresholds Frame slip Digital signals must have accurate clock synchronization for data to be interleaved into, or extracted from, the appropriate timeslot during multiplexing and de-multiplexing operations.
  • Page 114 1 hour). When a threshold is reached, a DTA messages is output as follows: DTA015:Frame slip — tracking — maintenance limit. DTA016:Frame slip — tracking — out of service limit. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 115 DTI/PRI maintenance tools Figure 21: Frame slip tracking thresholds Free run (non-tracking) mode A maintenance threshold and an out-of-service threshold are set in LD 73 as described below. Also, see Figure 22: Frame slip non-tracking thresholds page 116 for additional information. Table 52: LD 73 - SRNT prompt Prompt Response...
  • Page 116 1-(2)-127 Slip Rate exceeded maintenance limit. Number of times the Slip Rate exceeds the maintenance limit while waiting for Slip Rate Improvement during the time window specified at the SRIM prompt. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 117 DTI/PRI maintenance tools Prompt Response Description While waiting for Slip Rate Improvement one of three DTA messages is output as shown in Table 54: Frame slip improvement timers on page 117. Table 54: Frame slip improvement timers SRIM (1)-127 DTA 026 - Frame slip out-of-service limit has been reached while monitoring frame slip improvement.
  • Page 118 If the loss of frame alignment condition clears at least 15 seconds, the DTI/PRI is automatically restored to service. The following DTA message is generated: Table 56: DTA message output DTA021 Loss of frame alignment has persisted for 3 seconds. Figure 24: Loss of frame alignment ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 119: Alarm Threshold Recommendations For Digital Trunks

    DTI/PRI maintenance tools Alarm threshold recommendations for digital trunks If a digital trunk is present in an IP expansion cabinet, link outages due to data network performance degradation between the main cabinet and the expansion cabinet causes alarms on the far end of the digital trunk. If link outages are frequent, alarm thresholds on the far end may need to be increased to prevent the trunk from being placed in a state requiring manual intervention to recover.

  • Page 120: Free-Run (Non-Tracking)

    Figure 25: Clock controller primary and secondary tracking Automatic clock recovery Automatic switchover of the primary and secondary reference clocks is always enabled in the system. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 121 DTI/PRI maintenance tools Note: EREF and MREF commands in LD 60, which control the enabling and disabling of automatic clock recovery, are not supported on the system. Replacing equipment Use the following procedure before reseating any one or more of the following: the NTAK09, the NTAK20, or the NTAK93.
  • Page 122 5. To replace the NTAK09 DTI/PRI card, NTAK20 Clock Controller or NTAK93 DCHI, refer to PRI implementation and DTI implementation in Avaya ISDN Primary Rate Interface Installation and Commissioning (NN43001-301). Be sure to set any switches and install any daughterboards as required.

  • Page 123: Chapter 12: 1.5 Mb Isl Maintenance

    Table 57: Status messages on page 124. Additional information on DCH and PRI messages can be found in the Avaya Software Input Output Reference - System Messages (NN43001-712). ISDN Primary Rate Interface Maintenance...

  • Page 124: Message Descriptions

    B or ISL channel capability In-service In-service Incoming and outgoing call allowed In-service Maintenance Incoming calls allowed only In-service Out-of-service Not allowed to use Maintenance Not allowed to use Out-of-service Not allowed to use ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 125: Message Functions

    Maintenance messages Message functions Service messages are used to monitor the following: • D-channel establishment • D-channel sanity polling • B-channel or ISL channel status change • Channel status audit D-channel establishment When the D-channel establishes, the B-channel status is supported by sending service messages for each B-channel controlled by a D-channel.

  • Page 126: Isl Maintenance Tools

    ENL MSGO N Enable outgoing D-channel messages on link N *. EST DCH N Establish D-channel N. PLOG DCHI N Print D-channel statistics log N. RLS DCH N Release D-channel N. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 127: Maintenance Messages

    Disable service messages for DCHI N. Maintenance messages D-channel status and error conditions are reported as DCH messages. These messages can be found in the Avaya Software Input Output Reference - System Messages (NN43001-712). Maintenance testing ISL back-to-back (without modems) For maintenance reasons or testing purposes it is sometimes necessary to connect ISL back- to-back (without modems).
  • Page 128 1.5 Mb ISL maintenance Figure 27: ISL back-to-back connection ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 129: Chapter 13: 2.0 Mb Dti Maintenance

    Chapter 13: 2.0 Mb DTI maintenance Contents This section contains information on the following topics: Overview on page 129 Replacing the NTAK10 2.0 Mb DTI circuit card on page 129 Monitor system DTI operation on page 131 System DTI maintenance tools on page 136 Overview From a maintenance perspective, system Digital Trunk Interface (DTI) operation consists of...
  • Page 130 6. Enter the following command in LD 60 to software enable the clock controller: ENL CC 0 7. Enable clock tracking on primary digital loop by issuing the following command: TRCK PCK ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 131: Monitor System Dti Operation

    The 2.0 Mb DTI status and error conditions are reported in the types of messages, shown in Table 61: Maintenance messages on page 131. Additional information on DTI messages is found in the Avaya Software Input Output Reference - System Messages (NN43001-712). Table 61: Maintenance messages Message...

  • Page 132: 2.0 Mb Dti Alarms

    (this could be caused by an electrical disturbance such as noise). See Figure 29: Bipolar violations on page 133. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 133 Monitor system DTI operation Figure 29: Bipolar violations Cyclic Redundancy Check (CRC-4). When the 2.0 Mb DTI card runs in CRC-4 mode, the CRC-4 word contains a checksum of all data in the multiframe. The receiving side uses the checksum to verify the data. The primary difference between BPV and CRC is that bipolar violation tracking indicates errors in the local span, while CRC indicates errors on an end-to-end span.
  • Page 134 With respect to the reception of AIS in TS16, AIS 64 Kbits must be detected when multiframe alignment has been lost and the binary content of TS16 is 95 percent 1, counting on 256 or 512 bits. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 135 Monitor system DTI operation When AIS in TS16 is detected, then bit 6 of outgoing TS16 frame 0 should be set. When the fault disappears, it should be cleared. Setting and clearing bit 6 of TRS 16 frame 0 must follow changes in status of the fault by less than 100 msec.

  • Page 136: System Dti Maintenance Tools

    Disable the clock controller before unseating circuit cards. Otherwise, the system initializes and momentarily interrupts call processing. DTI commands Below is a quick reference list of important 2.0 Mb DTI commands in LD 60. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 137: Clock Controller Commands

    System DTI maintenance tools Table 65: LD 60 - DTI commands Command Action DLBK L Disable loopback mode for 2.0 Mb DTI. RLBK L Enable loopback mode for 2.0 Mb DTI. DISI L Disable 2.0 Mb DTI when idle. DISL L Force disable 2.0 Mb DTI.
  • Page 138 05 = NI group 1 error handling - undefined condition found. 06 = Bad MESSOUT number 6 encountered. 07 = NI MESSOUT queue is full. 08 = NI MESSIN queue full. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 139 System DTI maintenance tools 09 = NI priority MESSIN queue is full. 10 = Bad MESSOUT number 10 encountered. 11 = TN = 0 read from regular queue. 12 = TN = 0 read from priority queue. 14 = Bad TN associated with MESSOUT number 14. 15 = Bad TN associated with MESSOUT number 15.
  • Page 140 155 = MESSOUT received requesting '0000' to be written into an 'abcd' state. 156 = MESSOUT received with a TN outside the range shelf 0, card 8-1, unit 3-0. DTI009C ch DTI009 error codes for CI microprocessor (M=C): ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 141 System DTI maintenance tools 157 = CI-1, NI FIFO overflowed, and has been cleared. 128 message were lost. 255 = TS16-DS30X FIFO overflowed, and has been cleared. 128 messages were lost. 147 = The TN of MESSOUT 28 received was not that of TS 0. 148 = The TN of MESSOUT 29 received was not that of TS 0.
  • Page 142 Figure 31: Far-end trunk loopback on page 143. The commands for a near-end per-loop loopback test are shown in Table 70: LD 60 - Perform a near-end per-channel loopback test. on page 143. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 143 System DTI maintenance tools Table 70: LD 60 - Perform a near-end per-channel loopback test. Command Description Disable the 2.0 Mb DTI card. DISL L Place the 2.0 Mb DTI card in remote per-loop RLBK L loopback. The commands for a far-end per-loop loopback test are shown in Table 71: LD 60 - Perform a far-end per-channel loopback test.
  • Page 144 2.0 Mb DTI maintenance ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 145: Chapter 14: 2.0 Mb Pri Maintenance

    Chapter 14: 2.0 Mb PRI maintenance Contents This section contains information on the following topics: Overview on page 145 Enable the 2.0 Mb PRI after installation on page 145 Disable the 2.0 Mb PRI before removal on page 146 Monitor system PRI operation on page 147 System PRI maintenance tools on page 158...

  • Page 146: Disable The 2.0 Mb Pri Before Removal

    1. Enter the following command in LD 96 to software disable the DCHI: DIS DCH N Where N is the D-channel device number. 2. Enter the following command in LD 60 to software disable the clock controller: ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 147: Monitor System Pri Operation

    Monitor system PRI operation DIS CC 0 3. Enter the following command in LD 60 to software disable the PRI card: DISL N Where N is the PRI card number. Disabling the NTBK50 PRI 1. Enter the following command in LD 96 to software disable the DCHI: DIS DCH N Where N is the D-channel device number.

  • Page 148: Service Message Function

    B-channel controlled by a D-channel. This enables the far end to synchronize its channel states. The service messages are sent when the system brings up the D-channel automatically or an administrator brings up the D-channel manually by using LD ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 149: D-Channel Sanity Polling

    Monitor system PRI operation D-channel sanity polling If a D-channel has been idle for 30 seconds, a service message is sent to poll the link sanity. The service message is sent whether or not the near-end is configured as master or slave. B-channel status change Whenever there is a status change for a B-channel or an ISL channel, the new status is reported to the far end in a service message.

  • Page 150: Group I Errors

    To maintain alignment of this frame structure, alternate timeslot zeros have a specific frame alignment pattern (X0011011). A frame bit error is acknowledged when any bit in the received pattern is in error. This error rate indicates the integrity of the end-to-end span. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 151 Monitor system PRI operation CRC-4 word errors When operating in the CRC-4 multiframe format (CRC), frames are bundled into groups of 16. This format includes a specific multiframe alignment pattern in bit 0 of every even frame's timeslot 0 (001011XX). Each odd frame timeslot 0 includes a CRC-4 cyclic redundancy checksum of the previous 8 frames (sub-multiframe).
  • Page 152 A 2.0 Mb PRI contains a buffer large enough to contain two full frames (256 x 2 = 512 bits), and is normally kept half full (1 frame). See Table 74: Performance impact of one slip page 153 for the impact of one slip on various types of data. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 153 Monitor system PRI operation All the degradations shown in Table 74: Performance impact of one slip on page 153 can be controlled or avoided by proper clock (network) synchronization. Table 74: Performance impact of one slip Service Potential impact Encrypted Text Encryption key must be resent.

  • Page 154: Group 2 Errors

    Red (local) alarms A Red alarm on the PRI card indicates that the card is having problems synchronizing with the incoming bit stream. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 155 Monitor system PRI operation This type of alarm may be caused by the following: • Loss of Signal (LOS) • Loss of Frame Alignment (LFAS) • Loss of CRC-4 Multiframe Alignment (LMAS) When the 2.0 Mb PRI is in a Red alarm state, RAI is transmitted to the far end. For both Group 2 Red and Yellow alarm states, action is taken after the condition has persisted for a downloaded persistence (PERS) threshold.
  • Page 156 A Red alarm state has been detected. This represents a local alarm state of Loss of Carrier (LOS), Loss of Frame (LFAS) or Loss of CRC Multiframe (LMAS). No Red (local) alarm. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 157 Monitor system PRI operation State Definition On (Yellow) A Yellow alarm state has been detected. This represents a remote alarm indication from the far end. The alarm may be either Alarm Indication (AIS) or Remote Alarm (RAI). No Yellow (remote) alarm. On (Green) NTAK79 2.0 Mb PRI is in loopback mode.

  • Page 158: System Pri Maintenance Tools

    Table 79: 2.0 Mb PRI commands (LD 60) Command Action DISI L Disable 2.0 Mb PRI when idle. DISL L Force disable PRI. ENLL L Enable PRI. LCNT (L) List alarm counters. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 159: Dchi Commands

    Disable remote loopback. RMST L (C) Perform remote loopback. PRI status and error conditions are reported in the Primary Rate Interface messages in Avaya Software Input Output Reference - System Messages (NN43001-712). DCHI commands D-channel commands are found in LD 96.

  • Page 160: Ddch Commands

    "X" represents the D-channel device number. D-channel status and error conditions are reported as DCH messages. These messages can be found in the Avaya Software Input Output Reference - Maintenance (NN43001-711). Clock controller commands Clock controller (CC) commands are accessed in LD 60.
  • Page 161 System PRI maintenance tools Table 82: Clock controller commands Command Action DIS CC X Disable clock controller. ENL CC X Enable clock controller. SSCK X Status of clock controller. TRCK XXX N Set clock controller tracking where XXX can be: PCK — track primary clock reference source SCLK —...
  • Page 162 With ATLP command set to one and if all 30 channels are idle at midnight, the system software disables the card and performs a self-test on all channels. This causes a Yellow alarm to be ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 163: Link Diagnostic And Remote Loop Back Tests

    System PRI maintenance tools generated to the far end. If any one of the 30 channels are busy at midnight, the software randomly disables one idle channel, and checks it while the card is enabled. With the ATLP command set to zero, only one channel is tested. The channel tested is randomly selected by software;...

  • Page 164: Remote Loopback Test

    LD 96 to disable the DCHI/DDCH: DIS DCH N Enter the following command in LD 60 to disable the 2.0 Mb PRI card and activate loopback mode: DISL L RLBK L or RLBK L C ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 165: Chapter 15: 2.0 Mb Isl Maintenance

    Chapter 15: 2.0 Mb ISL maintenance Contents This section contains information on the following topics: Overview on page 165 ISL maintenance on page 174 Overview This chapter provides a DCHI reference list of D-channel commands, an technical document reference for maintenance messages, and maintenance testing information. This chapter provides the information required to implement ISL on the system including: •...

  • Page 166: Isl In Shared Mode

    • A modem capable of the following: (such as Ventel 2400-33 or 2400 Plus II) - minimum of 2400 baud - synchronous operation - must support leased line (also known as private line or point-to-point) operation ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 167: Isl In Dedicated Mode Using Dial-Up Modem

    Overview Figure 36: ISL in dedicated mode using leased line ISL in dedicated mode using dial-up modem The requirements are as follows: • NTAK02 SDI/DCH D-channel handler interface. • Modems such as the Ventel 2400, Hayes 2400 (the Hayes Smartmodem 2400 cannot be used on leased lines) or Gandalf 2400 that can support 2 or 4-wire leased line operation.

  • Page 168: Isl Hardware Installation

    2. Install the NTAK02 in any spare slot 1-9 of the Option 11C main cabinet or slots 11-14 of the Media Gateway. 3. Install the NTAK19BA four port cable on the 50-pin Amphenol connector associated with the slot holding the NTAK02. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 169: Setting Up The D-Channel

    ISL hardware installation Table 84: NTAK02 switch settings Port 0 Port 1 SW1-1 SW1-2 DPNSS1 — ESDI Port 2 Port 3 SW1-3 SW1-4 DPNSS1 — ESDI Table 85: NTAK02 jumper settings Unit Jumper Strap for Strap for Jumper RS422 RS232 location location Unit 0...

  • Page 170: Isl Software Implementation

    The DCHI uses the NTAK02 circuit card and does not support ISDN PRI signaling. The DCHI is reserved for ISL use only. The D-channel can communicate with the far-end by means of a dedicated leased line modem or dial-up modem. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 171 ISL software implementation Note that the following implementation relates to analogue TIE trunks being used as B- channels. In the case where DTI/PRI trunks are also used, then LD 17 digital loop (2.0 Mb PRI) and LD73 (2.0 Mb PRI/SYTI) must also be configured with the appropriate clocking and threshold settings.
  • Page 172 Customer private network identifier. MUST be unique to this customer in the private network. Used as part of the setup message for feature operation such as Network Ring Again and Network ACD. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...
  • Page 173 ISL software implementation Prompt Response Description HNPA Telephone area code for this system. Sent as part of setup message as CLID. HNXX Telephone local exchange code for this system. Sent as part of setup message for calling line identification. HLOC Home location code (NARS).

  • Page 174: Isl Maintenance

    Enable DCHI port N. EST DCH N Establish D-channel N. PLOG DCHI N Print D-channel statistics log N. RLS DCH N Release D-channel N. SDCH DCH N Release a D-channel and switch D-channels. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 175: Maintenance Messages

    Disable service messages for DCHI N. Maintenance messages D-channel status and error conditions are reported as DCH messages. These messages can be found in the Avaya Software Input Output Reference - System Messages (NN43001-712). Maintenance testing ISL back-to-back testing (without modems) For maintenance reasons or testing purposes, it is sometimes necessary to connect ISL back- to-back (without modems).
  • Page 176 • For port 1, DCHI Y, program the following settings in LD 17: - CLOK = EXT (External clock) - SIDE = MAS (Master) Set NTAK02 port 1 jumper plugs to DTE and RS-422. ISDN Primary Rate Interface Maintenance November 2011 Comments? infodev@avaya.com...

  • Page 177: Index

    Index maintenance ............recovery ............... start-up ..............B-channels ..............support for ............LD 17 ................call tracing ..............specifying network call trace ........ channels ..............LD 20/21/22 ..............status audits and changes ........trunk/route/configuration information printouts ..Clock Controllers ............LD 30 ................
  • Page 178 RFI filters ..............Network Call Trace feature ......... sanity polling of D-channels ........service messages ............operations guide ........... switch settings ............maintenance service messages ......Clock Controller ........... network call tracing ..........PRI (Primary Rate Interface) ........TFS009 reports ............ISL maintenance ..........

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