Cisco AS5350XM Installation Manual page 48

Supplying Power
This product is intended for installation in restricted access areas and is approved for connection using
Note
12 or 14 AWG copper conductors only. The installation must comply with all applicable codes.
See Figure 3-18
Step 1 Note the orientation of the DC power supply. The power supply cord should have three wires: 48 VDC
Return, –48 VDC, and a safety ground (green wire).
If you are installing a redundant power supply, you should attach appropriate-sized spade terminals to
Note
the stripped ends of the ground and input wires.
Step 2 Strip off 1/4 in. (0.625 cm) of insulation on the safety ground, +48 VDC, and –48 VDC input wires.
The illustration shows the DC power supply terminal block. Wire the DC power supply using the
Warning
appropriate lugs at the wiring end, or with no lugs, as illustrated. The proper wiring sequence is
ground to ground, positive to positive, and negative to negative. Note that the ground wire should
always be connected first and disconnected last. Statement 197
Figure 3-18
The illustration shows the DC power supply terminal block. Wire the DC power supply using the
Warning
appropriate lugs at the wiring end, or with no lugs, as illustrated. The proper wiring sequence is
ground to ground, positive to positive, and negative to negative. Note that the ground wire should
always be connected first and disconnected last. Statement 197
Cisco AS5350XM Universal Gateway Chassis Installation Guide
3-16
or Figure 3-19 and follow these steps to wire the terminal blocks:
DC Power Supply Connections—Single Power Supply
Power switch
Source A - NEG
Chapter 3 Installing the Cisco AS5350XM Universal Gateway
To DC source
Source B - RTN
Source A - RTN
Source B - NEG
DC connector
Ground
OL-6417-02