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.
7. Repeat the procedure for each of the remaining FEBs.
Figure 33: Removing a FEB Before Installing the M120 Router
Removing CBs
The router can have one or two CBs. They are located in the right rear of the chassis in
the slots marked CB0 and CB1. Each CB weighs approximately 6.9 lb (3.1 kg).
To remove the CBs (see Figure 34 on page 133):
1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
the strap to an approved site ESD grounding point. See the instructions for your site.
3. Loosen the captive screws on the ejector handles on both sides of the CB faceplate.
4. Simultaneously rotate the ejector handles counterclockwise to unseat the CB.
Copyright © 2018, Juniper Networks, Inc.132
M120 Multiservice Edge Router Hardware Guide
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