Lucent Technologies -48V CPS4000/CPS4000 PLUS Cabinet Power System
Issue 13 December 2000 Maintenance 8 - 1
8 Maintenance
Overview
In This Section This section provides field maintenance information and procedures for
the power units.
Safety Before performing the maintenance procedures, review the safety
information in Section 4.
Warning
AC input voltages are provided to the CPS via multiple input
cables. Ensure that the circuit breaker for each ac input is
disconnected while installing or servicing this equipment.
The units intended for use in the CPS shelf are not suitable as
disconnect means, and the spacings of the shelf backplane do
not provide adequate spacing to act as a disconnect means.
Hazardous energy levels can exist on dc output (from power
supply outputs and batteries). Before working on any output
circuit, turn off ac service circuit breakers to the rectifier shelf
and turn off circuit breakers on the cabinet output. Disconnect
batteries and generator output circuit breaker.
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