Module Problems; Replacing Modules - Avaya MERLIN MAGIX Maintenance And Troubleshooting Manual

Maintenance and Troubleshooting

Module Problems

If you suspect that a module is faulty, do the following:
Run module tests. Module tests identify the cause of module malfunctions. For complete
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instructions for tests, refer to Chapter
any errors on the repair tag that will be shipped with the faulty module. If the module is sent for
repair, this helps repair personnel troubleshoot the cause of the malfunction.
A module on which you run tests cannot be used for service. Because your customer depends
on this service, run module tests during off hours, if possible. If you cannot, minimize the time
required for each module's downtime whenever possible.
Replace module. Replace the module with a module of the same type to determine whether
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the module is faulty. If the errors cease, the problem is solved.
Beginning in MERLIN MAGIX Release 1.5, serial numbers are provided for some modules. See
Module Serial Numbers for more information.

Replacing Modules

You can remove and insert line/trunk and extension modules (separately or at the same time) with
the system power on without affecting normal call processing.
CAUTION:
This section does not apply to the processor or power supply.
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Although the system is designed so that you can remove and replace modules without
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affecting call processing, partially inserting and removing a module can cause a cold start.
Adding a 100D module or changing any of its DS1 parameters requires that the system be
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idle.
When you replace a module, be sure to use the same module type. For example, do not
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put an 008 MLX module in place of a 400 GS/LS module. If a module is replaced with
another type of module, or if a module is added to the system without powering down the
system first, a cold start occurs.
If you move any module to a different slot, be sure to renumber the modules by selecting
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Board Renumber from system programming. See "System Renumbering" in the Feature
Reference] in the Basic System Programming section of this guide for information about
board renumbering.
To replace a module, follow these steps:
1. Busy-Out or Reset the module. Busy-Out is recommended.
2. Label all cords (if they are not labeled already) and then unplug them from the module.
For information about labeling trunk and cords, see "Labeling Trunks" in Installation. For
instructions on checking poorly labeled wiring, see
4-19.

Module Problems

4-18
4
6, ''Tests'' in this guide. After each module test, record
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''Checking Unlabeled Wiring'' on page