
CAUTION: Avoid bending fiber-optic cable beyond its minimum bend
radius.An arc smaller than a few inches in diameter can damagethe cable
and cause problems that are difficult to diagnose.
13. Use one of the following methods to bring the MPC online:
•
Press and hold the corresponding MPC online button on the craft interface until the
green OK/FAIL LED next to the button lights steadily, in about 5 seconds.
•
Issue the following CLI command:
user@host>request chassis fpc slot slot-number online
For more information about the command, see the Junos OS Operational Mode
Commands.
CAUTION: After the OK/FAIL LED lights steadily, wait at least 30 seconds
before removing the MPC again, removing an MPC from a different slot,
or inserting an MPC in a different slot.
You can also verify correct MPC and MIC functioning by issuing the show chassis fpc and
show chassis fpc pic-status commands described in“Maintaining MX480 MPCs” on
page 135 and “Maintaining MX480 MICs” on page 137.
Figure 104: Installing an MPC
OK
MASTER
FAN
ONLINE
OFFLINE
0
1
1
0
FAIL
FAIL
PEM
FAIL
FAIL
FAIL
FAIL
FAIL
FAIL
ESD
OK
OK
OK
OK
OK
OK
OK
2
3
4
5
ACO/LT
YELLOW ALARM
RED ALARM
NC
NO
C
NC
NO
C
MX480
REO
RE1
0
1
2
3
SCB
SCB
g004912
Related
Documentation
MX480 Modular Port Concentrator (MPC) Description on page 13•
• Maintaining MX480 MPCs on page 135
• Tools and Parts Required to Replace MX480 Hardware Components on page 162
• Replacing an MX480 MIC on page 208
• Preventing Electrostatic Discharge Damage to an MX480 Router on page 248
• MX480 MPC Serial Number Label on page 322
207Copyright © 2013, Juniper Networks, Inc.
Chapter 14: Replacing MX480 Hardware Components
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