Lucent Technologies FiberReach DDM-2000 - DDM-2000 Fiberreach Multiplexer - Other Power Options

363-206-305
Power
4-8
Issue 3 June 2000
Other Power Options
4
The DDM-2000 FiberReach Multiplexer uses miscellaneously mounted power
converters to support powering from 60 V AC or 120 V AC sources. These
converters supply
−
48 V to the FiberReach shelf. Customer premise locations
usually have 120 V AC commercial power from utilities. The 60 V AC is widely
used in Cable TV applications. The converters are equipped with necessary
lightning protection for outside plant applications. See Figure 4-6.
Figure 4-6. DDM-2000 FiberReach Multiplexer — Other Power Options
Narrowband shelf services are supported by
SLC
-2000 Releases 4.3 and 4.4. For
Release 4.4, the
SLC
-2000 host must be equipped with the SPQ810 MSDT
server unit circuit pack to support both quad and octet mode services. See
LTP 363-030-000,
SLC-2000 Access System Application, Planning, and Ordering
Guide
for additional information.
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-48V
-48V
-48V
-48V
-48V
-48V
Diode OR of redundant power feeds is provided on each circuit pack.
in-service- upgrade/replacement of circuit pack in AUXCTL slot.
AUXCTL
SYSCTL
-48V
FNMAINLow Speed
+5.3V
+5.3V
*
PSU
PSU
†
† Miscellaneously mounted, for protected services only
* An unfused -48V power feed directly to backplane power bus is provided to allow
+5V
60 VAC, 120 VAC