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DES-7200 Hardware Installation Guide

3-18

3. Insert the twisted pair with the RJ45 port into the appropriate interface according to the

identification on the panel of the line card. Distinguish the crossover cable and

straight-through cable.

4. Connect the cables and optical fibers of each board in sequence.

3.17 Binding the Cables

3.17.1 Precautions

 The power cables and other cables should be bound in a visually pleasing way.

 When you bind fibers, make sure that the fibers at the connectors have natural bends or

bends of large radius.

 You should not bind optical fibers and twisted pairs too tightly, as this may press hard

the fibers and affect their useful life and transmission performance.

3.17.2 Simple Binding Steps

1. Bind the drooping part of the optical fibers and twisted pairs of each board, and lead

them to both sides of the chassis according to the convenience. For the DES-7200, you

can l ead out t he o ptical f ibers and t wisted p airs b y using t he c abling c hute o n t he

chassis.

2. On both s ides of t he c hassis, f asten t he o ptical f ibers or t wisted p airs t o t he c abinet

cable management ring or cabling chute.

3. For the power cables, you should bind them closely along the bottom of the chassis, in

a straight line wherever possible.

3.18 Installation Check

3.18.1 Cabinet Check

 Verify if the external power supply matches the distribution panel of the cabinet.

 After the equipment is installed, check if the front/back cabinet doors can be closed.

 Verify that the cabinet has been fastened completely, and does not move or tilt.

 Verify that t he equipment has be en i nstalled i n t he cabinet, and a ll t he c ables ha ve

been fastened to the cabinet.

3.18.2 Checking the Cables

 Verify that the optical fibers and twisted pairs match the interfaces.

 Verify that the cables have been bound properly.

3.18.3 Checking the Power Supply

 Verify t hat the po wer cables ar e i n go od contact and c omply with t he s afety

requirements.

 Verify t hat t he p ower m odule has bee n f astened o nto t he e quipment w ith t he t wo

screws on the panel.

 Turn on the power switch and verify that the power module can work normally.

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