Octel XC1000, Service Manual

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PLATFORM INSTALLATION
3-2 Edition One XC1000 Service
3.2.1 Electrical Safety
Before connecting the –48 Vdc primary-power leads to the XC1000, take
the following precautions:
-
Make sure that the –48 Vdc branch circuit breaker is off or fuses are
removed, as applicable.
-
Always connect the ground leads before the live leads.
-
Make sure to check the equipment ground connection to the building
(earth) ground.
For the safety of personnel, when working on the XC1000,
always wear an antistatic wrist strap that is grounded to
the XC1000 cabinet and that contains a minimum of 1
megohm resistance from attachment to wrist. Handle cards
only by their sheet-metal stiffeners. Do not touch the
components or the edge connectors. Do not stack the cards
on top of one another. All circuit cards in the XC1000 can be
damaged by static discharge currents or by physical
mishandling.
Caution!
Some of the installation tasks require attaching cables to the XC1000,
grounding the XC1000, installing modules, and setting configuration
switches on telephone interface cards (TICs). When performing any of
these tasks, follow these precautions:
-
Because the XC1000 modules are sensitive to static, when working on
the XC1000, make sure to wear an antistatic wrist strap that is
grounded to the XC1000 cabinet and that contains a minimum of 1
megohm resistance from attachment to wrist.
-
Be careful when handling cards; do not touch either the components
or the edge connectors.
-
Do not stack the cards on top of one another.
Keep modules that are not installed in the XC1000 in their
antistatic bags (modules are shipped in such bags). Make
sure that modules are packaged in antistatic bags if
returned to the factory.
Caution!
-
Always keep modules that are not installed in the XC1000 in their
antistatic bags in which they are shipped. If modules must be
returned to the factory, make sure to package them in antistatic bags.
SECTION 3.2