Component Led Overview; T1600 Alarm Messages Overview - Juniper T1600 Hardware Manual

Component LED Overview

T1600 Alarm Messages Overview

Copyright © 2010, Juniper Networks, Inc.
See "T1600 Craft Interface FPC LEDs" on page 55.
The following LEDs are located on various router components and display the status of
those components:
SIB LEDs—Three LEDs on each SIB faceplate—
status of that SIB.
See "T1600-SIB LEDs" on page 34 and "TXP-T1600 SIB LEDs" on page 35.
T-CB LEDs—Three LEDs on each T-CB faceplate—
status of that T-CB. If no LEDs are lit, the T-CB is not receiving power.
See "T1600 T-CB LEDs" on page 47.
LCC-CB LEDs—Three LEDs on each LCC-CB faceplate—
the status of that LCC-CB. The
The port and LED are not currently supported. If no LEDs are lit, the LCC-CB
JCS LINK
is not receiving power.
See "T1600 LCC-CB LEDs" on page 48.
SCG LEDs—Three LEDs on each SCG faceplate indicate the status of that SCG. If no
LEDs are lit, the SCG is not receiving power.
See "T1600 SCG LEDs" on page 51.
PIC LEDs—Each port on each PIC has an LED that indicates the status of the port.
See the T1600 Core Router PIC Guide.
Power supply LEDs—LEDs on each power supply faceplate indicate the status of that
power supply.
See "T1600 Three-Input 240-A DC Power Supply LEDs" on page 61, "T1600 Four-Input
240-A DC Power Supply LEDs" on page 64, or "T1600 Three-Phase Delta and Wye AC
Power Supply LEDs" on page 68.
When the Routing Engine detects an alarm condition, it lights the red or yellow alarm
LED on the craft interface as appropriate, trips the corresponding alarm relay contact on
the CIP, and reports the cause of the alarm in the craft interface LCD. To view a more
detailed description of the alarm cause, issue the
user@host> show chassis alarms
There are two classes of alarm messages:
Chassis alarms—Indicate a problem with a chassis component such as the cooling
system or power supplies.
Troubleshooting the T1600 Craft Interface on page 181
Troubleshooting the T1600 Host Subsystems on page 179
Chapter 16: Troubleshooting T1600 Router Hardware Components
ACTIVE , OK
ACTIVE
ACTIVE
ACT and LINK LEDs indicate the status of each port.
show chassis alarms
, and FAIL —indicate the
, OK , and FAIL — indicate the
, , and — indicate
OK FAIL
CLI command:
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