Cisco Systems 78-10588-03 Manuel D’Utilisation

Cover the connector adapters to avoid soiling or contaminating the inside of
the adapters while cleaning the chassis.

Cover the connectors and adapters to avoid the inside of the adapters or the
surface of the connectors from getting dirty when not using the connectors.

If the surface is not clean or does not have a uniform shine, repeat
the process using a fresh surface of the alcohol pad.

This section describes how to power on the system, determine whether a power
supply module (PSM) is faulty, and how to replace a PSM, if necessary.

The Cisco Metro 1500 series system has two identical, fully redundant PSMs.
Each PSM can cover the power needs of the entire system. These PSMs provide
5V and 30A to the system. The PSM provides full input-to-output, input-to-case,
and output-to-output isolation.

If powered off, wait at least 10 seconds before you switch the unit
on again.

Turn the power on or off using the keyswitch on the AC-powered version only.
(See Figure 3-10.) This switch supplies power to the redundant power supplies.
You can only move the switch to the on ( | ) or off ( 0 ) position. Two keys are
shipped with each unit and all units use the same key. You can remove the key in
either the on or off position.