Powering Down the System

Powering Down the System

You may need to power down the system for troubleshooting during installation, or to add new equipment to the carrier.

CAUTION:

Follow these steps in the exact sequence.

To power down the system, follow the steps below.

1Turn off the power supply on the basic carrier.

2Turn off the power supplies on the expansion carriers.

3Unplug any auxiliary power units.

Because the power supplies are already off, the sequence for removing auxiliary power cords is not important.

4Unplug the system from the AC outlet.

Installing the Control Unit 2-45

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AT&T 3.0 manual Powering Down the System, Unplug the system from the AC outlet