Cisco 7500 Series Configuration Manual page 144

Installing the Cisco 7513, Cisco 7513-MX, and Cisco 7576
R E V I E W D R A F T — C I S C O C O N F I D E N T I A L
Before working on a chassis or working near power supplies, unplug the power cord on AC units or
Warning
disconnect the power at the circuit breaker on DC units.
Warning This unit might have more than one power cord. To reduce the risk of electric shock, disconnect the
two power supply cords before servicing the unit.
Use this procedure to connect power to DC-input power supplies in the Cisco 7513, Cisco 7513-MX,
and Cisco 7576:
Turn off (O) the system power switch on the power supply you want to attach DC-input cable.
Step 1
Remove the 8-mm screws on the terminal block cover so the cover is free of the terminal block.
Step 2
Figure 3-20
Terminal
block
cover
Remove
Step 3 Lift and remove the cover.
When stranded wiring is required, use approved wiring terminations, such as closed-loop or
Warning
spade-type with upturned lugs. These terminations should be the appropriate size for the wires and
should clamp both the insulation and the conductor.
Route the DC-input power cable through the conduit from your power source, through the conduit
Step 4
bracket on the power supply, and make a sufficient length of wire available to attach to the three terminal
block connections.
Attach and tighten the conduit to the conduit bracket. How this conduit is attached depends on your site;
Step 5
its attachment is beyond the scope of this publication.
The illustration shows the DC power supply terminal block. Wire the DC power supply using the
Warning
appropriate lugs at the wiring end, as illustrated. The proper wiring sequence is ground to ground,
positive to positive (line to L), and negative to negative (neutral to N). Note that the ground wire should
always be connected first and disconnected last.
Cisco 7500 Series Installation and Configuration Guide
3-30
Removing the Terminal Block Cover (Cisco 7513, Cisco 7513-MX, and Cisco 7576)
Remove
DC
FA N OU TP UT
OK
OK
FA IL
DC-input power supply
Chapter 3 Installing a Cisco 7500 Series Router
OL-5008-03 B0