
REVIEW DRAFT—CISCO CONFIDENTIAL
3-18
Cisco 7500 Series Installation and Configuration Guide
OL-5008-03 B0
Chapter 3 Installing a Cisco 7500 Series Router
Installing the Cisco 7507 and Cisco 7507-MX
Figure 3-11 Installing the Power Cable Leads, Nylon Ties, and Cover (Cisco 7507 and Cisco
7507-MX)
Warning
Incorrectly wiring the terminal block could create a dangerous shock hazard and could damage the
power supply, power source, and the chassis components.
Warning
When stranded wiring is required, use approved wiring terminations, such as closed-loop or
spade-type with upturned lugs. These terminations should be the appropriate size for the wires and
should clamp both the insulation and conductor.
Step 4 Provide strain relief for the DC-input cable by attaching two nylon ties around the cable and the metal
bracket.
Step 5 Install the terminal block cover over the terminal block, and tighten the captive installation screws. Do
not overtighten these screws. The recommended torque is 8.2 ± 0.4 inch-lb.
Warning
To prevent a short-circuit or shock hazard after wiring the DC-input power supply, replace the
terminal block cover.
Warning
After wiring the DC power supply, remove the tape from the circuit breaker switch handle turn on
power by moving the handle of the circuit breaker to the ON position.
Step 6 Connect the opposite end of the DC-input cable to the DC power source.
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INPUT VOLTAGE : 40-72 V=
INPUT CURRENT : 24-13A
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H2486
Power supply captive
installation screw
Terminal block cover
(removable)
Power leads attached
to terminal block
( ) negative
( ) positive
( ) ground
Nylon ties on the cable
and metal bracket
DC-input cable
Captive installation screws
on terminal block cover
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