Nortel Networks Circuit Card 311 - Manual (Page 65)

Precautions 65
WARNING
Module covers are not hinged; do not let go of the covers. Lift
covers away from the module and set them out of your work area.
WARNING
Circuit cards may contain a lithium battery. There is a danger of
explosion if the battery is incorrectly replaced. Do not replace
components on any circuit card; you must replace the entire card.
Dispose of circuit cards according to the manufacturer’s
instructions.
To avoid damage to circuit cards from static discharge, wear a properly
connected antistatic wrist strap when you work on system equipment. If a
wrist strap is not available, regularly touch one of the bare metal strips in
a module to discharge static.
Figure 15 "Static discharge points" (page
66) shows the recommended connection points for the wrist strap and the
bare metal strips you should touch.
Handle circuit cards as follows:
• Unpack or handle cards away from electric motors, transformers, or
similar machinery.
• Handle cards by the edges only. Do not touch the contacts or
components.
• Set cards on a protective antistatic bag. If an antistatic bag is not
available, hand-hold the card, or set it in a card cage unseated from
the connectors.
• Store cards in protective packing. Do not stack cards on top of each
other unless they are packaged.
• Keep cards installed in the system as much as possible to avoid dirty
contacts and unnecessary wear.
• Store cards in a cool, dry, dust-free area.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.