Lucent Technologies Lineage
®
2000 ECS/GPS Battery Plant J85500G-2
Issue 6 May 1999
Maintenance 5 - 1
5
Maintenance
Controls and
Indicators
Operating controls and indicators on the battery plant are listed
below.
For Controller LEDs and switches, see Controller Manual.
For Rectifier LEDs and switches, see Rectifier Manual.
CP5 Fuse Board
LEDs and fuses
Two LEDs on the CP5 Fuse Board are used to indicate the status
of the low-voltage disconnect/reconnect circuit.
1. The red “LVD OPEN” LED indicates that the
disconnect/reconnect contactor is open and therefore that
batteries are disconnected from the rest of the battery plant.
2. The yellow “LVD FAIL” LED indicates that only one of
the two redundant low-voltage detectors has directed the
contactor to open and that the disconnect circuit may have
failed.
Fuses F1 through F21 are also located on the CP5 LVD/Fuse
Board for an ECS controller. They provide power for controller
functions and rectifier regulation. When a fuse blows the colored
indicator (white, orange or green) pops up and an alarm signal is
transmitted to the controller. The fault should be cleared before
replacing a blown fuse. Refer to the ECS Controller manual for
troubleshooting procedures.
DC Circuit
Breakers/Fuses
Any circuit breaker mounted in the List 20 panel is ON (or
closed) when the handle is in the Up position, and OFF (or open)
in the Down position. A circuit breaker which is supplying a load
may be turned off manually, but this may affect service to the