Cisco ASR 903 Installing Manual page 36

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Installing the DC Power Supply

Step 4

Identify the positive and negative feed positions for the terminal block. The recommended wiring sequence is as in the

figure below.

Step 5

Attach the lugs on the terminal block, see the figure below.

Figure 27: Power Supply with Lead Wires

1, 3

Do not overtorque the fasteners of the terminal block. The recommended maximum torque is from 25 in.-lb

Caution

(2.82 N-m).

Step 6

Use a tie wrap to secure the wires to the rack, so that the wires are not pulled from the terminal block by casual contact.

Make sure the tie wrap allows for some slack in the wire.

Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide

Positive (+) lead wire

Installing the Cisco ASR 903 Router

2, 4

Negative (-) lead wire

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