AT&T MERLIN LEGEND Installation & Maintenance Manual page 509

Maintenance and Troubleshooting
9. Restore power by turning on
a. any auxiliary unit (if present)
b. the power supply module(s) on the expansion carrier(s)
c. the power supply module on the basic carrier
The system automatically cold starts.
10. Use the maintenance screens to select "System Erase" (frigid
start).
11. Restore the system translations from the backup floppy disk.
12. Plug in the SMDR printer and/or administrative PC cords.
13. Attach a tag identifying any visible problems and any relevant
error reports to the replaced processor module.
Replacing the Line/Trunk and Station Modules
Line/trunk and station modules can be removed and inserted
without affecting normal call processing. Leave the system
power on. All line/trunk and station modules can be removed or
inserted at the same time.
Notes:
Although the system is designed for line/trunk and station
modules to be removed and replaced without 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 idle.
The module removed must be replaced with a module having the
same type of circuit board, in other words, the same signature. If
a module is replaced with another type of module, or if a module
is added to the system without the system being powered down,
a cold start occurs. If you move the first 008 MLX module from its
Maintenance 5-31