Cisco XM Universal Gateways Cisco AS5400XM - Manual (Page 44)

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Cisco AS5400XM Universal Gateway Chassis Installation Guide
OL-6418-02
Chapter 3 Installing the Cisco AS5400XM Universal Gateway
Supplying Power
Warning A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.
Statement 1022
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning Before connecting or disconnecting ground or power wires to the chassis, ensure that power is
removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel
board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch
handle of the circuit breaker in the OFF position. Statement 140
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 3-15 and 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).
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 3-15 DC Power Supply Connections
On/off
switch
LEDs
31628
Terminal
block
Mounting screw Mounting screw
Mounting
screw
IN OK
DC OK
OTF
IN OK
DC OK
OTF
LEDs
Terminal
block
Strain-relief
clamps
Strain-relief
clamps