342-86400-431PS
Issue 2.1
March 2013
Page 9
Copyright
GE Multilin Inc. 2001-2013
B86431-4X Power Unit
A front panel layout for a B86431-4X unit is shown in Figure 2 (the figure
specifically shows the layout for the 48VDC option). The Power Unit does not
come equipped with a CI (Craft Interface) since there are no software adjustable
parameters.
Status LED (Green or Red)
This LED provides a visual indication of the unit's status.
The LED will light red in a protected system (i.e. two or more
power units in parallel) if the fuse opens or the station battery
is removed. The LED will also light red if the internal DC-to-
DC converter fails.
The LED will light green in either protected or unprotected
configuration if the unit is powered and none of the above
alarm conditions exist.
Fuse
The B86431-4X unit uses a 5x20mm fast-acting GMA fuse in
line with the main battery input. The unit must be removed
from the shelf prior to adding or removing the fuse. The fuse
rating depends on the unit option as shown in the table below.
Unit Option
Fuse Rating
B86431-41 (24V)
4 A
B86431-42 (48V)
2 A
Extractor
Located at the bottom of the unit's face plate is the extractor, which is an integral
part of the unit's casing. As the name implies, it allows for easy extraction of the
unit from the shelf.
WARNING
Do not use the extractor to force the unit into the shelf as this could
result in damage to the extractor.
B86431-42 (48V)
POWER UNIT
STATUS
LENTRONICS
MULTIPLEXERS
Figure 2:
B86431-42
Front Panel
Layout
