Cisco 12006 series, Руководство по установке и настройке

Страница: 297 / 344

6-53
Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03
Chapter 6 Maintaining the Router
Removing and Installing an RP or a Line Card
The Cisco 12000 Series Router line cards use cable-management brackets for the
following purposes:
• Organizing the network interface cables
•
Keeping the network interface cables out of the way
•
Positioning connectors at their respective ports on the line card faceplate
•
Keeping the cables free of sharp bends (excessive bending in a network
interface cable can cause performance degradation)
Note
The type of cable-management bracket used by a line card is determined by the
line card type and the number of network interface ports on the card faceplate.
To install the line card cable-management bracket, see Figure 6-29 and follow
these steps:
Step 1
Attach an ESD-preventive strap to your wrist and connect the leash to the chassis
or to another grounded, bare metal surface.
Step 2 Take the line card cable-management bracket from the line card shipping carton.
Step 3
Orient the top of the line card cable-management bracket with the top of the line
card faceplate (the end opposite the two four-character alphanumeric displays.)
Step 4
Align the two captive screws on the bracket with the threaded insert holes near the
ejector levers on each end of the line card faceplate.
Step 5
Finger-tighten the two captive screws.
Caution
Do not overtighten the captive screws; you might strip the threads on the screw or
in the insert in the line card faceplate.
Step 6
Use a flat-blade screwdriver to secure the two captive screws.
Step 7
Repeat Step 2 through Step 6 for any remaining line cards.