Cisco AS5400XM Quick Start Manual page 30

Figure 39 Cisco AS5350XM Universal Gateway DC Power Supply Connections—Redundant Power Supply
To DC source
DC connector
Source A - NEG
Source A - RTN
Figure 40 Cisco AS5400XM Universal Gateway DC Power Supply Connections
Mounting screws
Terminal block
J2
IN OK
LEDs
DC
OTF
IN OK
LEDs
DC
OTF
J1
Terminal block
Mounting screw
Strip 1/4 in. (0.625 cm) of insulation off the safety ground, the 48 VDC Return, and the –48 VDC input wires.
Step 3
30
A - A + B - B +
Ground
Source B - RTN
Source B - NEG
Power switch
On/off switch