AT&T 3.0 manual Replacing a Module

Replacing a Module

Replacing a Module

CAUTION:

This section does not apply to the processor or power supply.

Although the system allows you to remove and replace modules without affecting call processing, partially inserting and removing a module can cause a cold start.

To add a 100D module or change any of its DS1 parameters, the system must be idle.

When you replace a module, use the same module type. For example, do not put a 008 MLX module in place of a 400 GS/LS/TTR 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 (System Reset) occurs.

If you move any module to a different slot, be sure to renumber the modules by selecting Board Renumber from system programming. See System Programming for information about board renumbering.

NOTE:

You can remove and replace line/trunk and extension modules with the system power on, without affecting normal call processing.

2-40Installing the Control Unit