Installing The Power Supply - AT&T MERLIN LEGEND Release 3.0 Installation Manual

Installing the Power Supply

Installing the Power Supply
WARNING:
Do not attach any cab/es or power cords to the power supply until it is
installed in the carrier.
Do not power up the control unit until all of the modules and power
equipment are installed. Once they are installed, refer to "Powering Up
the System, " later in this chapter. Failure to comply with this procedure
can result in shock hazard and or damage to the equipment.
If you are upgrading an older system and a ring generator is specified in
the system forms (Control Unit Diagram), install it in the power supply
before putting the power supply in the carrier. The procedure is detailed
in Maintenance and Troubleshooting.
For expansion carriers only, a copper shield must be installed on the
power supply before installing it in the carrier. The procedure is
explained in "Installing a Copper Shield," later in this chapter.
Before touching leads, connectors, pins, and other components, use a
properly grounded wrist strap, to prevent damage from electrostatic
discharge (ESD).
Remove the protective cover from the gold-finger connector (on the
back of the power supply) before inserting it into the carrier.
Installing the power supply can involve as many as four procedures,
depending on the system configuration. The procedures are:
Turning off all power to the control unit
Installing a copper shield
Installing the ferrite cores
Installing the Control Unit 2-19