Juniper MX480, Hardware Manual

Page: 264 / 420

Maintaining MX480 Interface Modules
•
Maintaining MX480 DPCs on page 264
•
Holding an MX480 DPC on page 266
• Storing an MX480 DPC on page 268
• Replacing an MX480 DPC on page 269
•
Replacing a Cable on an MX480 DPC, MPC, MIC, or PIC on page 274
•
Maintaining MX480 FPCs on page 277
• Holding an MX480 FPC on page 279
• Storing an MX480 FPC on page 282
•
Replacing an MX480 FPC on page 283
•
Maintaining MX480 MICs on page 288
• Replacing an MX480 MIC on page 289
• Maintaining MX480 MPCs on page 295
•
Replacing an MX480 MPC on page 298
•
Maintaining MX480 PICs on page 302
• Replacing an MX480 PIC on page 303
• Replacing an MX480 AS MLC on page 307
•
Replacing an MX480 AS MSC on page 311
•
Replacing an MX480 AS MXC on page 314
• Maintaining Cables That Connect to MX480 DPCs, MPCs, MICs, or PICs on page 316
Maintaining MX480 DPCs
Purpose The router can have up to six Dense Port Concentrators (DPCs) mounted horizontally in
the DPC card cage at the front of the chassis. For optimum router performance, verify
the condition of the DPCs.
Action On a regular basis:
•
Check the LEDs on the craft interface directly above each DPC slot. The green LED
labeled
OK
lights steadily when a DPC is functioning normally.
•
Check the
OK/FAIL
LED on the DPC. For more information, see
MX Series Interface Module
Reference
. If the DPC detects a failure, the DPC sends an alarm message to the Routing
Engine.
•
Check the status of installed DPCs by issuing the CLI
show chassis fpc
command to
check the status of installed DPCs. As shown in the sample output, the value
Online
in the column labeled
State
indicates that the DPC is functioning normally:
user@host> show chassis fpc
Copyright © 2019, Juniper Networks, Inc. 264
MX480 Universal Routing Platform Hardware Guide