AN-50e
user manual
70-00033-01-03
Proprietary Redline Communications © 2005
September
2005
Page 81 of 100
6.2
DC Power Supply Cable Connections
This section provides important instructions for connecting to a DC power source.
The DC power supply (optional) is rated for operation using 24, 48, or 60 VDC.
Power is connected to the terminal via a fused power entry module located on the
rear of the terminal. All DC terminals are shipped with an 18 AWG blue and black
insulated power cord terminated at one end with a two-pin polarized female plug.
Important
: All power wiring must be at least 18 AWG.
The DC power input is floating (+Ve and -Ve not connected to chassis), allowing
positive (minus to ground), negative (positive to ground) and floating power
connections as required. Refer to table below for connection details.
If the terminal does not power-on, it is possible that the blue and black wires are
connected incorrectly resulting in a reversal of polarity. In this case the diode
protection prevents permanent damage to the power supply. Reverse the power
connections and verify that the terminal powers up properly.
Table 30
:
Spec. - DC Power Supply Cable Connections
Wire Color
Negative DC Power
(-18 to -72 VDC)
Positive DC Power
(+18 to +72 VDC)
Blue
Negative power
Power Return
Black
Power Return
Positive Power
Schematics
Note: DC units are not equipped with power switches and activate
immediately when connected to a power source.
Note: The Widemouth power supply options are not available for the AN-50.
