AT&T 3.0 manual Disconnecting AC Power

Preparation for Hardware Maintenance

Disconnecting AC Power

To disconnect the AC power, see Figure 1-6, and follow the steps below.

1Disconnect the AC power to each auxiliary power unit by unplugging the power cord from the wall outlet.

2Disconnect the AC power to each carrier by unplugging the power cord from the wall outlet.

Auxiliary

Power

Unit

AC	AUX
INPUT	POWER

-48 VDC

Auxiliary

Power

Input

A C

I n p u t

-4 8 V D C Power Cord

I

AUX Power Unit	AC
AC Power Cord	Outlet

Ferrite

Ground C o r e s W i r e

Control Unit

AC Power Cord

Figure 1-6. Disconnecting AC Power

Introduction 1-17