Removing Cbs; Figure 27: Removing A Feb Before Installing The M120 Router - Juniper Networks Hardware Manual

M120 Multiservice Edge Router Hardware Guide

Removing CBs

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CAUTION: Do not stack hardware components on one another after you
remove them. Place each component on an antistatic mat resting on a
stable, flat surface.
Repeat the procedure for each of the remaining FEBs.
7.

Figure 27: Removing a FEB Before Installing the M120 Router

The router can have one or two CBs. They are located in the right rear of the chassis in
the slots marked and
CB0
To remove the CBs (see Figure 28 on page 63):
Place an electrostatic bag or antistatic mat on a flat, stable surface.
1.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to an approved site ESD grounding point. See the instructions for your site.
Loosen the captive screws on the ejector handles on both sides of the CB faceplate.
3.
Simultaneously rotate the ejector handles counterclockwise to unseat the CB.
4.
Grasp the ejector handles and slide the CB about halfway out of the chassis.
5.
Place one hand underneath the CB to support it and slide it completely out of the
6.
chassis. Place it on the antistatic mat.
. Each CB weighs approximately 6.9 lb (3.1 kg).
CB1
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