Replacing An Mx240 Scb-Mx; Removing An Mx240 Scb-Mx - Juniper MX240 Hardware Manual

Replacing an MX240 SCB-MX

CAUTION:
subsystem offline. If there is only one host subsystem, taking the host subsystem offline
shuts down the router.
Before replacing an SCB-MX, read the guidelines in Operating and Positioning the MX240 SCB Ejectors.

Removing an MX240 SCB-MX | 401

1.
Installing an MX240 Switch Control Board | 402
2.
Removing an MX240 SCB-MX
CAUTION:
operate the ejector handles properly to avoid damage to the equipment.
NOTE: You can remove the Switch Control Board and Routing Engine as a unit, or remove the
Routing Engine separately.
1. Take the host subsystem offline.
2. Place an electrostatic bag or antistatic mat on a flat, stable surface.
3. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on
the chassis.
4. Rotate the ejector handles simultaneously counterclockwise to unseat the Switch Control Board.
5. Grasp the ejector handles, and slide the Switch Control Board about halfway out of the chassis.
6. Place one hand underneath the Switch Control Board to support it, and slide it completely out of the
chassis.
Before you replace the Switch Control Board, you must take the host
Before removing the Switch Control Board, ensure that you know how to
401