Removing The T640 Control Boards; Figure 64: Removing A Sib - Juniper T640 Hardware Manual

Removing the T640 Control Boards

Copyright © 2013, Juniper Networks, Inc.

Figure 64: Removing a SIB

The router can have up to two control boards. These are located in the upper rear of the
chassis in the slots marked
To remove the T640 control boards (see
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 control board
3.
faceplate.
Flip the ejector handles outward to unseat the control board.
4.
Grasp the ejector handles and slide the control board about halfway out of the chassis.
5.
Place one hand underneath the control board to support it and slide it completely out
6.
of the chassis. Place it on the antistatic mat.
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 the second control board.
7.
Chapter 10: Installing the T640 Router Without a Mechanical Lift
and . Each one weighs approximately 5 lb (2.3 kg).
CB0 CB1
Figure 65 on page 114 and Figure 66 on page 114):
113