Juniper MX2010 Hardware Manual page 542

To remove an MPC with an adapter card:
1. Have ready a replacement MPC or blank panel and an antistatic mat. Also have ready rubber safety
caps for each MPC you are removing that uses an optical interface.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
one of the ESD points on the chassis.
3. Label the cables connected to each port on the MPC so that you can later reconnect the cables to the
correct ports.
4. Use one of the following methods to take the MPC offline:
Press and hold the corresponding LC online button on the craft interface. The green OK LED next
to the button begins to blink. Hold the button down until the LED goes off.
Issue the following CLI command:
user@host>request chassis fpc slot slot-number offline
For more information about the command, see the
Reference.
NOTE:
the FRU loses power, and the system's total power increases.
5. Disconnect the cables from the MPC.
WARNING:
of fiber-optic cables. Fiber-optic transceivers and fiber-optic cable connected
to a transceiver emit laser light that can damage your eyes.
CAUTION:
inserting or removing cable. The safety cap keeps the port clean and prevents
accidental exposure to laser light.
When you issue the request chassis fpc slot slot-number offline command,
Do not look directly into a fiber-optic transceiver or into the ends
Do not leave a fiber-optic transceiver uncovered except when
Junos OS System Basics and Services Command
526