94 Maintenancecause is identified, the problem can be corrected by replacing the defectivecard, connecting accidentally-disconnected cables, or correcting thesoftware problem.CS 1000M Large Systems and Meridian 1 Large Systems providebuilt-in self-diagnostic indicators and software and hardware tools.These diagnostic facilities simplify system troubleshooting and reduceMean-Time-To-Repair (MTTR).This document focuses on the maintenance of Fiber Remote IPEequipment at the remote site and in the local system. It is assumed thatlocal non-Fiber Remote IPE functions were operating operate correctlybefore beginning to diagnose Fiber Remote IPE problems.System installation and maintenance guide sections of CommunicationServer 1000M and Meridian 1 Large System Maintenance (NN43021-700)() describe how to maintain the entire system. This section describes howto maintain the Fiber Remote IPE equipment as an integral part of the localsystem.Diagnostic toolsDiagnostic tools are used to troubleshoot problems in the system, includingproblems with the Fiber Remote IPE. When diagnosing Fiber Remote IPEproblems, it can be necessary to use more than one tool.Hardware diagnostic toolsHardware diagnostic tools consist of:• card self-tests• LED indicators• display codes• enable/disable switchesSelf-testA self-test is automatically performed by each Fiber Remote IPE card:• when the card is inserted in an operating system module• when the card is enabled• when the system is powered up or reset.A self-test can also be performed on a card using software commands.Nortel Communication Server 1000Fiber Remote IPE FundamentalsNN43021-554 04.01 4 June 2010Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
