Nortel DMS-100 Series Maintenance Manual page 64

2-44 Star Remote System hardware
NTTR46AA/AB ac/dc rectifier
The NTTR46AA/AB ac/dc rectifier is on the TSS cover in the SRMO cabinet.
In the SRME Wall Mount, the rectifier is below the batteries. The ac/dc
rectifier converts the ac input power to -48 V dc required by the Star Module.
A rectifier alarm is output to the SMC when there is a dc output failure at the
rectifier because of
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The power cord plug on the rectifier also contains a fuse holder. The fuse
holder contains one spare fuse and one active fuse. The following figure shows
the connectors and fuse holder on the ac/dc rectifier.
Figure 2-20 NTTR46AA/AB ac/dc rectifier
Front view of rectifier on the TSS
cover in the SRMO cabinet
ac power
cable
connection
297-8353-550 Standard 05.01 March 2001
ac failure
rectifier failure
ac circuit breaker trip in the ac panel
Fan
Rectifier fuseholder
(contains fuse and
spare fuse)
Side view of rectifier below the
batteries in the SRME Wall Mount
Rectifier test
points
dc power output
connection
Rectifier test
points