Cisco Systems 7500 Series manual Captive installation screws on terminal block cover

Chapter 3 Installing a Cisco 7500 Series Router

Installing the Cisco 7507 and Cisco 7507-MX

R E V I E W D R A F T — C I S CO CO N F I D E N T I A L

The following procedure assumes you have already installed the power supplies using the procedure in the “Installing Cisco 7507 and Cisco 7507-MX Power Supplies” section on page 3-14. The procedure requires 8-AWG cable for terminal block connections and a 3/16-inch flat-blade screwdriver to loosen the captive screws on the terminal block cover and the terminal block.

Warning Before performing any of the following procedures, 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.

Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units or 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 7507 or Cisco 7507-MX:

Step 1 Using a screwdriver, loosen the captive installation screws on the terminal block cover. Figure 3-10

Step 2 Lift and remove the terminal block cover.

Figure 3-10 Removing the Terminal Block Cover (Cisco 7507 and Cisco 7507-MX)

DO NOT SHIP WITH POWER SUPPLY INSTALLED

FASTENER TO BE FULLY ENGAGED BEFORE OPERATING POWER SUPPLY

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IN		F
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P		IL
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INPUT VOLTAGE : 40-72 V= INPUT CURRENT : 24-13A

H2531

Captive installation screws on terminal block cover

Step 3 Wire the DC power supply using the appropriate lugs at the wiring end.

Warning The illustration shows the DC power supply terminal block. Wire the DC power supply using the 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
OL-5008-03 B0		3-17