Figure 23: Disconnecting a DC Power Cable from a Four-Input 240-A DC Power Supply
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Terminal studsCable lug
Locking
washer
Nut
Installing a T640 DC Power Supply Cable
NOTE: Only INPUT 0 and INPUT 1 are supported for the T640 router. INPUT 2 on the
three-input 240-A power supply is not supported. Do not connect the replacement
cable to INPUT 2.
1. Slide the replacement power cable lug onto the terminal stud.
2. Secure the cable lug on the DC power cable to the terminal stud, first with a
washer, then with a nut (see Figure 24, Figure 25, and Figure 26). Use a 7/16-in.
(11 mm) nut driver or wrench to tighten the nut. Apply between 23 lb-in. (2.6
Nm) and 25 lb-in. (2.8 Nm) of torque to each nut:
a.
Secure each positive (+) DC source power cable lug to a RTN (return)
terminal.
b.
Secure each negative (–) DC source power cable lug to a –48V (input) terminal.
26 ■ Installing a T640 DC Power Supply Cable
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