Nortel Networks Circuit Card - Manual (Page 84)

Page 84 of 906 Circuit card installation
553-3001-211 Standard 3.00 August 2005
Precautions
To avoid personal injury and equipment damage, review the following
guidelines before handling system equipment.
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 on
page 85 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.
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.