Cisco Systems WS-X6608-T1

3-10

Cisco Catalyst 4900M Switch Installation Guide

78-18350-02

Chapter 3 Installing the Switch

Connecting DC-Input Power to the Catalyst 4900M Switch

Step 3Remove the terminal block cover by simultaneously squeezing the top and bottom sides of the cover, and

at the same time, use a fingernail to carefully pry up on the top and bottom clips on the terminal block

cover to release the cover from the terminal block. Pull the cover off of the terminal block and set the

cover aside. (See Figure 3-6.)

Figure 3-6Removing the Terminal Block Cover

Step 4Using a 5/16-inch nutdriver, loosen and remove the four nut and lockwasher pairs on the terminal block

posts. Set the nuts and lockwashers aside.

Step 5Using an M4 nutdriver, loosen and remove the nut and lockwasher from the power supply ground

terminal.

Step 6Attach appropriate type and sized lugs to the source DC cables.

NoteThe lugs are not supplied as part of the chassis accessory kit; you need to purchase them

separately. See Figure 3-7 for the physical dimensions of a suitably-sized DC power cable lug.

The lugs must have:

•Two holes with 0.62 ±0.02-inch spacing between the hole centers to accommodate the power supply

terminal posts.

•A 90-degree bend in the barrel to allow the source DC cables to exit the terminal block.

•Suitable DC power cable lugs include:

–

For 4 AWG-sized cable—Panduit LCD4-14AF-L or Burndy YA4C-2L-90

–

For 6 AWG-sized cable—Panduit LCD6-14AF-L

1Terminal block cover 3Terminal block cover clip

2Terminal block

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