AT&T 3.0 manual Installing Modules

Installing the Modules

Installing Modules

To install modules starting from slot 1 (the first open slot next to the processor), follow the steps below:

1For each 400EM tie line/trunk module, for jacks numbered 1 through 4 in Figure 2-11,check Form 3c, incoming Trunks: Tie, for E&M signaling type.

Set the dual in-line packaging (DIP) switches on the front of the 400EM Tie Trunk module according to the E&M signaling type settings listed in Table 2-4and Table 2–5and shown in Figure 2–11.The default E&M signal does not require any adjustments in the DIP switches.

2Remove the protective cover from each module’s gold-finger connector.

3Lower the hook on top of the module onto the rod on the top of the carrier in the appropriate slot. See Figure 2--10.

4Make sure the connector on the module mates properly with the connector on the carrier.

5Swing the module into the slot and firmly push the module into the carrier until it locks into place.

CAUTION:

To avoid damage, do not force the module. If the module does not insert easily, press the bottom rear locking tab, remove the module, and inspect the module and carrier for damage or obstruction.

If there is no damage and no obstruction, reinsert the module, A damaged carrier or module must be replaced.

6 Repeat. Steps 1 through 5 for each module you want to install.

Installing the Control Unit 2-33