Cisco Systems AS5350XM manual DC Power Supply Connections-Single Power Supply

Chapter 3 Installing the Cisco AS5350XM Universal Gateway

Supplying Power

Note This product is intended for installation in restricted access areas and is approved for connection using 12 or 14 AWG copper conductors only. The installation must comply with all applicable codes.

See Figure 3-18or Figure 3-19and follow these steps to wire the terminal blocks:

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).

Note If you are installing a redundant power supply, you should attach appropriate-sized spade terminals to 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.

Warning The illustration shows the DC power supply terminal block. Wire the DC power supply using the 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 DC Power Supply Connections—Single Power Supply

Power switch To DC source

DC connector

	56022
Source A - NEG	Ground
Source A - RTN	Source B - RTN

Source B - NEG

Warning The illustration shows the DC power supply terminal block. Wire the DC power supply using the 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 OL-6417-02