AT&T 518-600-016 manual Feature module Processor module

Feature module

Processor module

FIGURE 2-20 Installing the Feature Module.

Modifying the 517A7

Processor Module for

Square (Key)

Operation

The MERLIN II system can be configured to operate solely as a square (key) system. As such, every outside line appears on the same button at each voice terminal. If you have Processor Module 517A7, use the following steps to modify it for square (key) operation:

1 Open the Processor Module case by releasing the seven snaps located around the edges of its case (Figure 2-21).

2 Notice the two headers marked “AA” on the module’s processor board. One header is located at the bottom right of the module; the other header is located at the center right. Do not touch the header at the bottom.

Installing the Control Unit 2-75