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General Description
Description, Installation, Operations, and Maintenance Manual
Federal Signal www.fedsig.com
Table 19 Environmental and Physical for the Amplifier Signal Backplane
(20000154)
Operating Temperature
-10 to +55
°
C
Humidity
0-98% non-condensing
20000154 Dimensions (H x W x L)
30 mm x 389 mm x 138 mm
Weight
0.26 kg/0.58 lb
2.6.3 Amplifier Power Backplane (20000155)
The Amplifier Power Backplane (20000155), provides power interfaces for the Amplifier
Chassis. (See Figure 17.).
The Amplifier Power Backplane is located in the rear bottom of the Amplifier Chassis.
It has three power lugs for connecting AC power:
• AC LINE
• AC NEUTRAL
• CHASSIS GND
It has four power lugs for connecting DC power:
• +48 V A
• +48 V B
• GND BAT A
• GND BAT B
AC and DC power options are mutually exclusive (cannot be used at the same time).
The Amplifier Power Backplane has four 24-pin headers labeled SLOT 1 to SLOT 4,
which are connections for the four amplifier cards. The Amplifier Power Backplane has
a red module with five micro switches in the upper left corner that serves for configuring
the Amplifier Chassis address/identification number.
NOTE
: The service model for the Amplifier Power Backplane is K20000155.
Figure 17 Amplifier Power Backplane (20000155)