T640 Craft Interface Host Subsystem Leds; Figure 32: T640 Lcd In Alarm Mode; Table 20: T640 Host Subsystem Leds - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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T640 Craft Interface Host Subsystem LEDs

54
Third and fourth lines—Status messages, which rotate at 2-second intervals. Some
conditions, such as removal or insertion of a system component, can interrupt the
messages.
To add a message that alternates every 2 seconds with the default status messages,
use the
set chassis display message
display message.
When a red or yellow alarm occurs, the LCD switches to alarm mode and reports the
alarm condition, as shown in

Figure 32: T640 LCD in Alarm Mode

The lines in the display report the following information:
First line—Router name.
Second line—Number of active alarms.
Third and fourth lines—Individual alarm messages, with the most severe condition
shown first. The prefix on each line indicates whether the alarm is a red (
alarm.
For an overview of alarm messages that can appear on the LCD, see
Messages Overview" on page
T640 Chassis Description on page 13
T640 LED Overview on page 200
Replacing a T640 Craft Interface on page 254
Each host subsystem has three LEDs, located on the upper right of the craft interface,
that indicate its status. The LEDs labeled
in slot and the control board in slot
RE0
of the Routing Engine in slot
describes the functions of the host subsystem LEDs.

Table 20: T640 Host Subsystem LEDs

Label Color
FAIL Red
Green
OK
command. For more information, see set chassis
Figure 32 on page 54.
202.
show the status of the Routing Engine
HOST0
. The LEDs labeled
CB0
RE1 and the control board in slot
State Description
On steadily Host is offline.
On steadily Host is online and is functioning normally.
R ) or yellow (
"T640 Alarm
show the status
HOST1
CB1 . Table 20 on page 54
Copyright © 2013, Juniper Networks, Inc.
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