AT&T Release 2.0 manual

Initializing and Testing the System

3.Change the feature module:

a . Turn off the AC power switches on the control unit in the following order:

Basic carrier

Expansion carrier 1, if present

Expansion carrier 2, if present

b . Unplug the interface cords from the SPM and SMDR printer ports on the processor module.

c . Remove the processor module from Slot 0.

d . Remove the feature module from the processor module and replace it with a Release 1.1 or 2.0 feature module.

e . Reinstall the processor module in Slot 0.

f. Plug the interface cords into the SPM and SMDR printer ports on the processor module.

g. Turn on AC power to the control unit in the following order:

Expansion carrier 2, if present

Expansion carrier 1, if present

Basic carrier

4.Perform a frigid start.

This step ensures that all system programming is returned to default values.

To upgrade to Release 1.1, Use the System Erase function on the SPM Maintenance menu (Maintenance → Slot → 00 → Demand Test → System Erase).

To upgrade to Release 2.0, use the System Erase function:

Maintenance → Slot → 00 → Demand Test → System Erase (Line 5, left button) twice → Yes

See the Maintenance and Troubleshooting guide for additional information on System Erase.

7 - 6 Initializing the System