Insertion Or Removal Of The Pems; Populating The Bac - Paradyne 8820 Installation Manual

2. Installation

Insertion or Removal of the PEMs

If both PEMs are supplied power from independent power sources from the front of
the chassis, then either PEM can be removed without affecting service.
If both PEMs are supplied with power from the rear of the chassis, then either PEM
can be removed without affecting service by first turning off its circuit breaker
before removal, then turning its circuit breaker back on after insertion.

Populating the BAC

If used:
Line cards can be installed in any one of Slots 1 through 9 and 10 through 18.
However, if you have only one line card, it is recommended that you begin with
Slot 1.
2-16
!
WARNING:
If both PEMs are being supplied with power from the front of the chassis,
make sure that power to the PEM is OFF, and the PEM circuit breaker is
open, before attempting to remove the PEM.
HANDLING PRECAUTIONS FOR
!
STATIC-SENSITIVE DEVICES
This product is designed to protect sensitive components from damage
due to electrostatic discharge (ESD) during normal operation. When
performing installation procedures, however, take proper static control
precautions to prevent damage to equipment. If you are not sure of the
proper static control precautions, contact your nearest sales or service
representative.
NOTE:
The BAC is equipped with an ESD jack located near the upper-right corner on
the front of the chassis.
An SCP card must be installed in Slot A or Slot B. For redundancy, an SCP
card may be installed in both Slot A and Slot B.
An MCP card must be installed in Slot 9.
An SCM card must be installed in Slot A.
NOTE:
It is important to completely secure each card in place before installing the
next card (tighten upper and lower screws). This is required to ensure proper
pressure on the EMI gaskets and to maintain proper air flow.
November 2004 8820-A2-GN20-80