Removing A Routing And Control Board - Juniper MX10008 Hardware Manual

Removing a Routing and Control Board

An MX10008 can have one or two Routing and Control Boards (RCBs), depending on the configuration.
RCBs can be installed in either of the two top slots on the front of the chassis.
In redundant configurations, an RCB is a hot-removable and hot-insertable field-replaceable unit (FRU).
In base configurations, you need to install a second RCB before removing a failing RCB in order to prevent
the router from shutting down. We recommend that you take base systems offline before replacing the
RCB.
Before you remove an RCB, ensure that you have the following items:
An electrostatic discharge (ESD) grounding strap
An antistatic mat
Cover panel for the empty slot if you are not replacing the RCB.
CAUTION:
In redundant configurations, removal of the Control Board causes the system to reboot
and start the election process for a new master.
To remove an RCB:
1. Power off the RCB. Place an electrostatic bag or antistatic mat on a flat, stable surface.
2. Wrap and fasten one end of an ESD strap around your bare wrist, and connect the other end of the
strap to the ESD point on the chassis (see
Figure 70: ESD Point on the Front of an MX10008
MX 100 08
1 ESD point
—
3. Simultaneously rotate the RCB handles counterclockwise to unseat the RCB.
4. Grasp the handles, and slide the RCB about halfway out of the chassis (see
In base configurations, removal of the RCB causes the system to shut down.
Figure 70 on page 175).
1
Figure 71 on page 176).
175