Figure 43: Removing An Scb - Juniper MX240 Hardware Manual

Removing an SCB
To remove an SCB (see Figure 43 on page 99):
NOTE: You can remove the SCB and Routing Engine as a unit, or remove the Routing
Engine separately.
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
2.
connect the strap to one of the ESD points on the chassis. For more information
about ESD, see "Preventing Electrostatic Discharge Damage" on page 130.
Check whether the SCB is functioning as the backup or as the master. If necessary,
3.
take the host subsystem offline, as described in "Taking the Host Subsystem
Offline" on page 96.
4. Press the ONLINE button on the craft interface until the light turns from green to
red.
Rotate the ejector handles simultaneously counterclockwise to unseat the SCB.
5.
Grasp the ejector handles and slide the SCB about halfway out of the chassis.
6.
Place one hand underneath the SCB to support it and slide it completely out of
7.
the chassis.
Place the SCB on the antistatic mat.
8.
If you are not replacing the SCB now, install a blank panel over the empty slot.
9.

Figure 43: Removing an SCB

Chapter 13: Replacing Hardware Components
Replacing Host Subsystem Components
99