Component Leds - Juniper M120 Hardware Manual

Component LEDs

Copyright © 2010, Juniper Networks, Inc.
Host subsystem LEDs—Three LEDs,
the status of the host subsystem. On the
On the RE STATUS and CB STATUS
The host subsystem LEDs are located in the middle of the craft interface, and are
labeled and .
0 1
See "Host Subsystem LEDs on the M120 Craft Interface" on page 26.
FEB LEDs—Two LEDs (one
Green indicates and red indicates
OK
of the craft interface, and are labeled
See "FEB LEDs on the M120 Craft Interface" on page 27.
Power supply LED—One LED (
Green indicates the power supply is functioning properly. Red indicates the power
supply is not functioning properly. The power supply LEDs are located on the lower
left of the craft interface, and are labeled
See "Power Supply LEDs on the M120 Craft Interface" on page 28.
FPC LEDs—One LED,
STATUS
and red indicates a failure. The FPC LEDs are located along the bottom of the craft
interface, and are labeled
See "FPC LEDs on the M120 Craft Interface" on page 27.
Alarm LEDs—One large red circular LED and one large yellow triangular LED, located
on the upper upper left of the craft interface, indicate two levels of alarm conditions.
See "Alarm LEDs and Alarm Cutoff/Lamp Test Button on the M120 Craft Interface" on
page 24.
The following LEDs are located on various router components and display the status of
those components:
FEB LEDs—Six LEDs, labeled
the FEB is connected to. Three additional LEDs on the FEB faceplate display the status
of the FEB, , , and
OK FAIL
See "M120 Forwarding Engine Boards (FEBs) LEDs" on page 17.
CB LEDs—Three LEDs, labeled
status of the CB. If no LEDs are lit, the master RE may still be booting or the CB is not
receiving power.
See "M120 Control Board (CB) LEDs" on page 23.
PIC LEDs—Each port on each PIC has an LED that indicates the status of the port.
See the M120 PIC Guide.
Power supply LEDs—One LED on each power supply faceplate indicates the status of
that power supply.
Chapter 13: Troubleshooting M120 Hardware Components
,
RE MASTER RE STATUS
RE MASTER
LEDs, green indicates
ACTIVE and one STATUS
. The FEB LEDs are located on the lower right
FAIL
through .
0 5
) indicates the status of each power supply.
STATUS
0 and 1 .
, indicates the status of each FPC. Green indicates OK
FPC0 through FPC5 .
0 through 5 , on each FEB faceplate indicate which FPC
.
ACTIVE
OK , FAIL , and MSTR , on each CB faceplate indicate the
, and , indicate
CB STATUS
, a green LED indicates
MASTER
OK and red indicates
) indicate the status of each FEB.
.
FAIL .
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