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2-14 Introduction to equipment and cabling configurations
Powering
The MBP master cabinet requires one 40A, 208/240 V ac feed from a
commercial power source per rectifier shelf.
AccessNode equipment in MBP cabinets requires four supply and return feeds
each of which is rated at a nominal –48 V dc at 30 A to supply the ABM breaker
interface panel.
Battery backup is provided by the battery equipment modules in the bottom of
the MBP master and expansion supplying 125 Ah each of battery backup.
Numbering of equipment shelf and slot positions
This section describes the numbering of equipment shelves and circuit pack
slots and positions.
Rectifiers
The rectifier shelf, equipped with up to three rectifiers, is standard equipment
in the MBP master cabinet. Figure 2-8 shows the MPR25 rectifier positions.
Rectifier 1 (Rect1) is the rectifier located in the right-most rectifier position on
the shelf. The shelf also contains rectifier positions 2 and 3 (the middle and the
left-most positions respectively).
Blank cover plates must be installed to cover positions not installed with
rectifiers.
Figure 2-8
MPR25 rectifier positions
EQL
FLT
FAN
HVSD
ON/RFA
DC
OUTPUT
V+
V-
Position 3
AccessNode P0904244 Issue 1.0
EQL
FLT
FAN
HVSD
ON/RFA
DC
AC
OUTPUT
F1
V+
MDA
V-
3/4A 250V
LOAD
MPR25
AC
OUTPUT
F1
V+
MDA
V-
3/4A 250V
LOAD
Position 2
EQL
FLT
FAN
HVSD
ON/RFA
DC
AC
F1
MDA
3/4A 250V
LOAD
Position 1
PC-15271
FW-15271
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