Installing the Control Unit

Installing the power supply can involve as many as four steps, depending on the system configuration. The following procedure includes steps that require detailed explanation. The detailed procedures for those steps immediately follow this high-level procedure.

1.Make sure all power to the control unit is turned off. See “Step 1: Turn Off the Power.”

2.Install a ring generator in the power supply if an 012 basic telephone or

008 OPT module is connected to the same carrier. See “Step 2a: Installing a Ring Generator.”

NOTE:

Place all 012 modules and 008 OPT modules in one carrier whenever possible.

3.Add a copper-foil shield to any power supply that is to be installed in an expansion carrier. See “Step 3: Installing a Copper Shield.”

4.Install the power supply in the leftmost slot of each carrier. See

“Step 4: Installing the Power Supply into the Carrier.

Step 1: Turn off the Power

a.Make sure that each power supply is turned off.

b.Make sure all power cords and auxiliary units are disconnected.

Installing the Power Supply 2-29

Page 68
Image 68
AT&T Release 2.0 manual Turn off the Power