Page 1 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance Release: 6.0 Document Revision: 03.01 www.nortel.com NN43001-717...
Page 2 ANY KIND, EITHER EXPRESS OR IMPLIED. The information and/or products described in this document are subject to change without notice. Nortel, the Nortel Logo, the Globemark, SL-1, Meridian 1, and Succession are trademarks of Nortel Networks. All other trademarks are the property of their respective owners.
Page 3: Table Of Contents
How to get help Getting help from the Nortel web site 9 Getting help over the telephone from a Nortel Solutions Center 9 Getting help from a specialist by using an Express Routing Code 10 Getting help through a Nortel distributor or reseller 10...
Page 4 1.5 Mb DTI/PRI maintenance Contents 93 Overview 93 Monitor DTI/PRI operation 93 DTI/PRI maintenance tools 97 1.5 Mb ISL maintenance Contents 121 Overview 121 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 5 System PRI maintenance tools 157 2.0 Mb ISL maintenance Contents 165 Overview 165 Setting up the D-channel 169 ISL maintenance 174 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 7: New In This Release
December 2007 Standard 02.02. This document has been up-issued to support Communication Server Release 5.5. June 2007 Standard 01.02. This document is up-issued to remove the Nortel Networks Confidential statement. May 2007 Standard 01.01. This document is issued to support Communication Server 1000 Release 5.0.
Page 8 2.0Mb DTI/PRI Description, Installation and Maintenance (553-3011-315 2.0) . Content from 2.0Mb DTI/PRI Description, Installation and Maintenance (553-3011-315 2.0) also appears in ISDN Primary Rate Interface Installation and Commissioning (NN43001-301). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 9: How To Get Help
How to get help This chapter explains how to get help for Nortel products and services. Getting help from the Nortel web site The best way to get technical support for Nortel products is from the Nortel Technical Support web site: http://www.nortel.com/support This site provides quick access to software, documentation, bulletins, and tools to address issues with Nortel products.
Page 10: Getting Help From A Specialist By Using An Express Routing Code
To access some Nortel Technical Solutions Centers, you can use an Express Routing Code (ERC) to quickly route your call to a specialist in your Nortel product or service. To locate the ERC for your product or service, go to: http://www.nortel.com/erc...
Page 11: Introduction
Introduction This document is a global document. Contact your system supplier or your Nortel 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 Meridian 1 and CS 1000Msystems.
Page 12: Intended Audience
Meridian 1 PBX 61CCP PII, CP PIV • Meridian 1 PBX 81CCP PII, CP PIV Related information This section lists information sources that relate to this document. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 13 Software Input Output Reference - Maintenance (NN43001-711) () Online To access Nortel documentation online, click the Technical Documentation link under Support & Training on the Nortel home page: www.nortel.com CD-ROM To obtain Nortel documentation on CD-ROM, contact your Nortel customer representative.
Page 15: Pri Fault Clearing
System software checks every 0-15 minutes (programmable) to see if a clock-controller or reference-clock error has occurred. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 16 Figure 1 "PRI alarm timers" (page 16) shows the progression of the system Red and Yellow (local and remote) alarm timers. Figure 1 PRI alarm timers Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 17: Pri Yellow Alarm (Remote Alarm)
When the Yellow alarm (remote alarm) 24-hour threshold is reached (DTA006 is printed), do the following: Contact personnel at the far end to determine what action they are taking. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 18: Pri Problems
• a bad 1.5 Mb/2Mb transmission cable connection • electrical or electromagnetic interference • carrier problems (for example, defective repeater) Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 19: D-Channel Problems
(DCHI) releases after being enabled. This applies to both primary and backup D-channels. For example: Command Response Description LD 96 ENL DCH N DCH 1003 MDL error Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 20 Check DCHI card jumper settings. Check to see that one system is designated as "master" (usually the larger system), and the other as "slave." Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 21: Quick Reference To Pri Operations
“Example 2: Unsuccessful call with trace function 01” (page 35) “Trace function 02” (page 36) “Feature requirements” (page 37) This chapter provides a quick-reference source for PRI maintenance operations. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 22: Pri Commands (Ld 60)
STAT Get status of all loops. STAT loop Get status of DTI/PRI loop. STAT l ch Get status of channel ch. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 23: Pri Messages
Enable incoming monitoring for the Network CPNW ISDN messages on D Channel x. ENL MSGO x (options) Enable the monitoring of outgoing messages on D-channel x. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 24 Perform loop back mode test on DCH x. TEST 200 x Perform interrupt handler test on DCH x. TEST 201 x Test interrupt handler-to-link interface path. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 25: Dch Messages
D-channel sanity polling. The status may be in-service and out-of-service. Service and service acknowledge messages for B-channels and ISL channels are supported between systems. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 26 This allows the far end to synchronize its channel states. These service messages are sent when the D-channel is brought up automatically by the system or manually by using LD 96. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 27: Pri Status Check
PRI and DCHI are properly installed (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. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 28 LD 60 STAT (L) PRI LOOP L - ENBL STAT REF CLK - DSBL SERVICE RESTORE - YES ALARM STATUS: ACCEPTABLE Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 29 The DCHI status should be OPER (N is the I/O port number) (operational) and EST (established). Check to assure the following PRI cables are connected correctly: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 30: Pri Startup
If any other LEDs are lit, go to PRI fault clearing. SLFT OK Test all PRIs using: LD 60 DISL loop SLFT L Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 31: Network Call Trace
The trace information is output to all the system terminals designated in LD 17 as ADAN = TTY and USER = MTC. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 32 9912 = NCT feature code xx = call trace function (01, 02) Dial tone is provided after "xx" is dialed. yyy... = digits normally dialed for the network call Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 33 DTI = digital trunk interface–2.0 Mb/s ISL = ISDN Signaling Link PRI = Primary Rate Interface UNKN = unknown data received Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 34 9912 = NCT feature code 01 = call trace function 01 78 = PRI route access code (ACOD) 6000 = remote extension Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 35 **** NCT # 22 **** NODE ORIG (SL1) SID 0 RLS 17 53 --- OUT --- TNS 0 0 5 1 MODE UNKN Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 36 Word 3,4—Son_Types/Processes Word 5—Aux_CRlink Word 6—OrigType/TerType Word 7—TTR_TN Word 8—OrigTN Word 9—TerTN Word 10—CallFwdTN Word 11—DISA_Call/XFER_indication Word 12,13—CR_Dialed_DN Word 14—Digitload/Digitunload Word 15-20—digits Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 37 When a remote system without NCT capability receives a Call Trace message, no call trace information is returned. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 39: Primary Rate Interface Maintenance
“Use the error counter” (page 54) “Replace the PRI” (page 56) “Pulsed E and M DTI2 signaling” (page 56) “Error messages” (page 56) “Diagnostics” (page 58) Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 40: Pri Commands (Ld 60)
AAA TRK LOOP x - BBBB SERVICE RESTORE: YES/NO YEL ALM PROCESS: YES/NO ALARM STATUS: NO ALARM/RED(local) ALARM Where: AAA may be: DTI2 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 41 Central Office. The status "BUSY" is independent to ISL feature usage of the ISPC link. MBSY = Hardware of specified digital loop is in make busy mode Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 42: Pri Alarm Commands
CMIN ALL Clears the minor alarm indicators for all customers. LCNT Prints content of all alarm counters of all PRI loops. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 43 Resets the thresholds for PRI loop L, trunk channel CH. RCNT Resets all alarm counters of all PRI loops. RCNT L Resets all alarm counters of PRI loop L. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 44: Pri Test Commands
The DCHI and PRI must be disabled before performing the self-test, or call processing will be disrupted. To perform the self-test on a specific loop, follow Procedure 3 “PRI self-test” (page 45). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 45 To perform the remote loopback test, use: LD 60 ATLP 1 or 0 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 46 DISL L RLBK L To run the remote loopback test on the PBX, follow Procedure 5 “Remote loopback test” (page 47). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 47 Figure 2 "PRI link-diagnostic and remote loopback tests" (page 47) shows the relationship between the remote loop-back test and the link-diagnostic test. Figure 2 PRI link-diagnostic and remote loopback tests Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 48: Pri Error Detection
There are three bit error rate thresholds set in LD 73. When a threshold is reached, a DTA message is output. See Figure 4 "BIPV and BIPC thresholds" (page 49). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 49 >10-4 (154 BPV per s) 66.39 1025 >10-5 (15.4 BPV per s) >10-6 (1.54 BPV per s) 663.9 1025 most tolerant Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 50 Related DTA messages are described below. See Figure 6 "DTA thresholds" (page 51). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 51 The trunks are returned to service only when the more serious alarms clear. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 52 If the loss of frame alignment condition clears for at least 15 seconds, the PRI is automatically restored to service. The following DTA message is generated: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 53: Tn-To-Channel Number Conversion
0 7 0 1 7 0 1 8 0 0 3 0 1 1 0 2 3 0 1 2 0 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 54: Use The Error Counter
To prevent injury from voltage on the span, always connect the patch cord into the test set before connecting the other end to the external signal source. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 55 200 per second. With Error/Error-Second switch in the Error-Second position, the unit counts error seconds at a rate of one per second. --End-- Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 56: Replace The Pri
Pulsed E and M DTI2 signaling Error messages DTA322 loop channel start-bits pulsed-bits end-bits duration An invalid pulsed signal has been received from the DTI. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 57 DTI2 cards prior to QPC915C or QPC536E. New functionality has been introduced in the DTI2 cards. The old cards ignore attempts to use the functionality introduced in these new cards. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 58 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. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 59: D-Channel Maintenance
Disable DCH x. DIS MSGI x (options) Disable the monitoring of incoming messages on D-channel x. DIS MSGI <dch> debg CH <loop><channel> Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 60 DLIF DCH x Force download of D channel x (For PRI UIPE application). ENL AUTO x Enable automatic recovery for DCH x. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 61 ENL MSGO <dch> debg SET Enable debug SET on all outgoing messages from D-channel. This set-based filtering is enhanced for UIPE proprietary messages. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 62 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. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 63: Dch Tests
RST DCH N Activate the first hardware test by entering the command. TEST 100 N Activate the second hardware test by entering the command. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 64 64 D-channel maintenance TEST 101 N --End-- Figure 10 DCH tests 100 and 101 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 65 Activate the first software test by entering the command TEST 200 N Activate the second software test by entering the command TEST 201 N --End-- Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 66: 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: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 67 (MSDL only) tat1 (MSDL only) tat2 (MSDL only) DIV_NB DIV_NEW DIV_OLD CNG_NB CNG_NEW CNG_OLD CON_NB CON_NEW CON_OLD FLOW FLOWa FLOWb FLOWc FLOWd Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 68 2 for a result of 100 milliseconds.) tttt number of times a message with no End of Message (EOM) mark was received Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 69 FLOWa first flow control hit starts a 128ms timer to allow one more try Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 70: Msdl Local Loopback Test (Nt6D80)
STAT MSDL y FULL command, where y is the physical port (DNUM) of the MSDL card. If the MSDL card may be faulty, disable the card and perform a reset self-test. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 71 After completing the test, remove the D-channel from the test state: DIS TEST x. Refer to Circuit Card Reference (NN43001-311) () . See Figure 12 "Local loopback test (NT6D80)" (page 72). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 72: Msdl Remote Loopback Tests (Nt6D80)
DCH links on both switches are set to TEST mode • DCH at Switch B is in remote loopback mode (RLB) • remote capability (RCAP) is MSDL Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 73 After the test is complete, remove both sides from the test state: DIS TEST x DIS TEST y --End-- Figure 13 "Remote loopback tests (NT6D80)" (page 74). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 74: Protocol Log (Plog)
Protocol errors can be the result of: • PRI transmission problems and re-start procedures, or • a protocol mismatch with the far end Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 75 DCH : XX MAINT CONFIRM TIME: <time of day> COUNTERVALUE Protocol counters count of missing PRI handshakes count of peer-initiated re-establishment link Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 76 IEs which were repeated in received messages, but are only allowed to appear once per message count of IEs received with length exceeding the specified maximum length for the IE Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 77: Replace The Dchi
Action Disable the D-channel using: LD 96 DIS DCH N Disable the asynchronous port on the DCHI card (if equipped) using: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 78: Ld 60 - Loop Maintenance For Sys-12, Axe-10, Swe, Swissnet, Numeris, Euroisdn, Neax-61, Asia-Pacific
Meridian 1SYS- 12, AXE- 10 SWE, NUMERIS, SWISSNET, EuroISDN, NEAX-61 channel timeslot mapping Channel Meridian 1 Network Timeslot B-channel 1-15 1-15 1-15 16-30 17-31 17-31 D-channel Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 79: Clock Controller Maintenance
80), a system with a dual CPU can have two clock controllers (CC0 and CC1). One clock controller acts as a backup to the other. The clock controllers should be locked to the reference clock. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 80 If a clock-controller error is detected, the system switches to the backup clock controller, without affecting which reference clock is being tracked. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 81 Table 22 "Clock controller commands in LD 60" (page 82) for clock controller commands in LD 60. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 82: Clock Controller Commands (Ld 60)
83). CAUTION Firmly touch the metal frame of the cabinet to discharge static electricity from your body before handling circuit packs. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 83 LD 60 ENL CC x Verify normal service level; first, switch the active clock to standby using: LD 60 SWCK x Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 84 J3 faceplate connectors. Determine the total cable length (no single cable can exceed 25 ft.) between the J3 connectors. Both cards must have the same setting. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 85: Clock Controller Cabling
51C, 61C Clock controller cabling The clock-controller cabling for system configurations is shown in Figures 15 to 17, beginning on page 105. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 86 86 Clock controller maintenance Figure 15 Clock controller cabling: Half Group systems Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 87 Clock controller cabling 87 Figure 16 Clock controller cabling: Single Group systems Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 88 88 Clock controller maintenance Figure 17 Clock controller cabling Multi Group systems Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 89: Isdn Signaling Link Maintenance
ISL trunk and displays the status of the D-channel. The display format is shown in Table 26 "ISL status check in LD 60" (page 90). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 90 Additional ISL information provided in LD 21 Cust # ISL Trunk TN Channel ID DCH # Route # l s c u l s c u Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 91: Isl Startup
• the hotline call between the system and the modem, ADM, ASIM, or HSDM is dropped The system handles these possibilities in the following way: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 92 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. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 93: 1.5 Mb Dti/Pri Maintenance
Maintenance messages The following sections describe the maintenance messages that may appear on the system maintenance TTY as a result of DTI or PRI operation. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 94 When the near-end and far-end status does not match, the more severe maintenance status takes effect over the less severe maintenance status. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 95 LD 14, or disabling of the associated loop, shelf, card or unit in LD 30, LD 32, LD 36, LD 41, or LD 60. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 96 Each time a Yellow alarm is generated, a counter is incriminated. When the Yellow alarm 24-hour threshold (prompt RALM in LD 73) is reached, the PRI/DTI circuit card must be restored to service manually. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 97: Dti/Pri Maintenance Tools
List alarm counters. RCNT (C) Reset alarm counters. SLFT (C) Do DTI/PRI self-test. STAT (C) List DTI/PRI status. RLBK Remote loopback. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 98 Disable service messages for DCHI N. Table 34 Downloadable D-channel (DDCH) commands (LD 96) Command Action DIS MSDL X (ALL) Disable DCHI card X. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 99 Following are the descriptions of LD 96 command enhancements for TMDI: Table 35 TMDI maintenance commands Description Command DIS TMDI x Disable TMDI card x. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 100 RST TMDI x Reset TMDI card x. SLFT TMDI x Invoke self-test on TMDI card x. STAT TMDI (x FULL) Get TMDI status. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 101 Where xxxx = PCK = Track primary clock reference source. SCLK = Track secondary clock reference source. FRUN = Free run mode. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 102 When power is applied, it turns Red and remains steadily lit, indicating the D-channel is disabled. When the D-channel is enabled, the LED turns green and remains steadily lit. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 103 ATLP 1 (enable auto loopback test in daily routine: LD 60) The automatic loop test checks the same functions as the manual self-test, but runs automatically as part of the midnight routines. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 104 (for PRI DCHL or BCHL): DIS DCH N b Enter the following command in LD 60 to disable the DTI/PRI card and activate remote loopback mode: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 105 Figure 18 "DTI/PRI link diagnostic and remote loopback tests" (page 106) shows the relationship between the remote loopback test and the link diagnostic test. --End-- Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 106 This explains why B8ZS can be used only if all the equipment on the T1 span (end-to-end) supports it. Otherwise, the intentional BPVs take the link down. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 107 Too many bit error rate out-of-service occurrences in the last 24 hours. Refer to Figure 20 "BIPV and BIPC thresholds" (page 108) for BIPV and BIPC thresholds. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 108 2 = 386). It is normally kept half-full (1 frame). Slippage impacts data transfer as shown in Table 40 "Impact of slip on service types" (page Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 109 There are two thresholds set in LD 73 the SRTK prompt. Refer to the description in LD 73. Also see Figure 21 "Frame slip tracking thresholds" (page 110). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 110 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 111) for additional information. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 111 DTI/PRI software invokes a Slip Rate Improvement mechanism to monitor the slippage and return the DTI/PRI card to service if a specific criterion has been met. The criterion used to determine that the slip rate Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 112 DTA 028 - Frame slip maintenance limit has been reached while monitoring frame slip improvement. Trunks remain out-of-service, and improvement timer is restarted. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 113 Figure 23 "Frame alignment thresholds" (page 114). Table 45 DTA message output DTA019 Frame alignment maintenance limit. DTA020 Frame alignment out of service limit. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 114 DTI/PRI is automatically restored to service. The following DTA message is generated: Table 46 DTA message output DTA021 Loss of frame alignment has persisted for 3 seconds. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 115 The clock controller makes small adjustments to its own frequency until both the incoming and system frequencies correspond. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 116 If the clock controller detects a reference clock error, with only one of the reference clocks, the reference clock switches to the usable clock. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 117 If the NTAK20 Clock Controller daughterboard is installed, enter the following command in LD 60 to software disable it: DIS CC 0 where Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 118 To replace the NTAK09 DTI/PRI card, NTAK20 Clock Controller or NTAK93 DCHI, refer to PRI implementation and DTI implementation in ISDN Primary Rate Interface Installation and Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 119 Tag any defective or damaged equipment with a description of the problem and package it for return to a repair center. --End-- Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 121: Mb Isl Maintenance
Table 47 "Status messages" (page 122). Additional information on DCH and PRI messages can be found in the Software Input Output Reference - System Messages (NN43001-712) () . Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 122 Far-end status 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 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 123 Activate the service messages in LD 96 on a D-channel basis. The commands are listed in Table 49 "D-channel messages" (page 124). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 124 Enable outgoing D-channel messages on link N *. EST DCH N Establish D-channel N. PLOG DCHI N Print D-channel statistics log N. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 125 Figure 27 "ISL back-to-back connection" (page 126) to accomplish the connection. This connection is normally done within the same system in a lab environment. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 126 126 1.5 Mb ISL maintenance Figure 27 ISL back-to-back connection Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 127 Procedure 17 Replacing the NTAK10 2.0 Mb DTI circuit card Step Action To replace a DTI circuit pack, follow the procedure below: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 128 Enter the following command in LD 60 to software enable the clock controller: ENL CC 0 Enable clock tracking on primary digital loop by issuing the following command: TRCK PCK --End-- Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 129 2.0 Mb DTI alarms There are two groups of alarm indicators monitored by the 2.0 Mb DTI. Within these two alarm groups, there are several individual alarm types. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 130 (this could be caused by an electrical disturbance such as noise). See Figure 29 "Bipolar violations" (page 131). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 131 All degradations shown in Table 53 "Performance impact of one slip" (page 132) can be controlled or avoided by proper clock (network) synchronization. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 132 Loss of Frame Alignment Thresholds. 2.0 Mb DTI hardware detects out-of-frame conditions. Running the midnight routines prints the number of occurrences when frame alignment was lost and clears the counters. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 133 Remote Alarm Indication (RAI). Bit 3 of TS0 in non-FAS frames is set to "one". This alarm is sometimes called a Yellow alarm. The far end is receiving AIS. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 134 Flashing The clock controller is switched on and locked onto (Green) the primary reference. The clock controller is switched off. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 135 DIS CC 0 Disable clock controller N. ENL CC 0 Enable clock controller N. SSCK 0 Status of clock controller N. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 136 Enter the following command in LD 60 to run the self-test: SLFT L CH (for a specific channel For self-testing individual channels, follow the same procedure as above, but use the following commands: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 137 50 = External RAM in range 880h-8EFH failed (MESSIN queue). 51 = Internal RAM test failed. 52 = Pad RAM test failed. 53 = External RAM test failed. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 138 139 = The 8031 on CHIP RAM failed self-test. 140 = The TS 16 signaling RAM and/or the TS 16 pick up buffer failed self-test. 141 = The CI-1 micro external RAM failed self-test. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 139 150 = MESSOUT 26 was received with the PPM counting bit (abcd) all equal to zero. 151 = MESSOUT 28 was received with the outpulsing bit (abcd) equal to zero. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 140 LD 6o - Perform a near-end per-channel loopback test. Command Description Disable the 2.0 Mb DTI channel. DSCH L CH Run the loopback test. RMST L CH Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 141 Disable the 2.0 Mb DTI card. DSCH L CH Place the 2.0 Mb DTI card in remote RLBK L CH per-loop loopback. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 142 142 2.0 Mb DTI maintenance Figure 31 Far-end trunk loopback Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 143 Enabling the NTAK79 PRI Step Action Enter the following command in LD 60 to software enable all 2.0 Mb PRI cards: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 144 Within about 30, seconds the D-channel layer 3 should be established. You can request the current status of the D-channel by issuing the command STAT DCH. The system should respond DCH N Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 145 LD 96: DIS MSDL N Enter the following command in LD 60 to software disable the clock controller: DIS CC 0 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 146 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 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 147 DCH link N. • STAT SERV (N): Displays the current service and service acknowledge message SERV setting for individual DDCH N or for DCHIs. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 148 The bipolar violations are recognized by the receiver and disregarded as bipolar violation errors. Figure 32 Bipolar violations Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 149 (10 x N2) in the previous minute. This corresponds to an error rate of 10 to 10 using the default N2 value. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 150 1 - 60 M No New Calls Threshold time Default: 15 MNT1 1 - 60 M Maintenance Threshold time Default: 15 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 151 The clock controller in turn supplies a synchronized reference for the rest of the system, including all 2.0 Mb PRIs and DTIs. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 152 (local) and Yellow (far-end) alarms. Yellow (far-end) alarms A Yellow alarm on the 2.0 Mb PRI card indicates that the card is receiving an alarm indication from the far end. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 153 NNDC, NNC, or MAINT states. The card remains in the alarm condition until the error has improved and after the Group 2 guard timers expire. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright ©...
Page 154 (PRI). The remaining two LEDs are associated with the on-board clock controller and the on-board D-channel interface (DCHI). Refer to Table 67 "NTAK79 faceplate LEDs" (page 155). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 155 D-channel handler and D-channel interface. The remaining two LEDs are associated with the clock controller. Refer to Table 68 "NTBK50 faceplate LEDs" (page 156). Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 156 The clock controller is not equipped. On (Red) DCH is disabled. On (Green) DCH is enabled, but not necessarily established. DCH is not equipped. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 157 DCHI N. ENL SERV N Enable service messages for DCHI N. DIS SERV N Disable service messages for DCHI N. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 158 Clock controller (CC) commands are accessed in LD 60. Table 72 "Clock controller commands" (page 159) provides a quick-reference list of clock controller commands. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 159 LCAs failed to program correctly. 8031 code checksum failure. 8031 internal RAM failure. 8031 external RAM failure. PAD RAM failure. AO7 signaling interface failure. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 160 Enter the following command in LD 60 to disable the idle channel: DSCH L CH Enter the following command in LD 60 to run the self-test on the channel: Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 161 Figure 33 "2.0 Mb PRI link diagnostic (far-end loopback) test" (page 162). The 2.0 Mb PRI channel or loop (card) tested must be disabled. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 162 Refer to Figure 34 "2.0 Mb PRI remote loopback test" (page 163). The 2.0 Mb PRI channel or loop (card) tested must be disabled. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 163 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 Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 165 PRI, with the noted exceptions. ISL hardware requirements ISL, regardless of the operation mode, uses analogue or digital TIE lines as B-channels. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 166 — synchronous operation — must support leased line (also known as private line or point-to-point) operation • NTAK19BA 4-Port SDI Cable Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 167 • NTAK19BA 4-port SDI cable. • NT8D09 500 set line card. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 168 11-14 of the Media Gateway. Install the NTAK19BA four port cable on the 50-pin Amphenol connector associated with the slot holding the NTAK02. --End-- Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 169 The originating modem has this auto-dial number stored internally as part of the modem configuration routine.</Paragraph> <Paragraph>The far-end modem need only be set-up for auto-answer. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 170 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. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009...
Page 171 For example, for Network Ring Again. CLOK D-channel clock type for signaling. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 172 Network Ring Again and Network ACD. HNPA Telephone area code for this system. Sent as part of setup message as CLID. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 173 Customer private network identifier. Must be the same as the CDB PNI at the fa- end. Interface type. System to system. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 174 Release a D-channel and switch D-channels. RST DCH N Reset D-channel N. STAT DCH (N) Print D-channel status (link status). TEST-100/101 DCH tests. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 175 Note: Protocol converters AO378652 and AO381016 supplied with the system are not gender changers. Figure 38 ISL back-to-back connection Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 176 — CLOK = EXT (External clock) — SIDE = MAS (Master) Set NTAK02 port 1 jumper plugs to DTE and RS-422. Nortel Communication Server 1000 ISDN Primary Rate Interface Maintenance NN43001-717 03.01 11 May 2009 Copyright © 2003-2009 Nortel Networks...
Page 178 OR IMPLIED. The information and/or products described in this document are subject to change without notice. Nortel, the Nortel Logo, the Globemark, SL-1, Meridian 1, and Succession are trademarks of Nortel Networks. All other trademarks are the property of their respective owners.

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