Table 11: Alarm Leds And Alarm Cutoff/Lamp Test Button; Table 12: Host Subsystem Leds; Table 13: Power Supply Leds On The Craft Interface - Juniper MX240 Hardware Manual

Table 11: Alarm LEDs and Alarm Cutoff/Lamp Test Button

Host Subsystem LEDs
Each host subsystem has three LEDs, located on the upper left of the craft interface,
that indicate its status. The LEDs labeled
in slot
Engine and SCB in slot
subsystem LEDs.

Table 12: Host Subsystem LEDs

Power Supply LEDs
Each power supply has two LEDs on the craft interface that indicate its status. The
LEDs, labeled
to the
LEDs on the craft interface.

Table 13: Power Supply LEDs on the Craft Interface

Shape Color State
Red On steadily
Yellow On steadily
– –
and the SCB in slot
0
1/0
Label Color State
Green On steadily
MASTER
Green On steadily
ONLINE
OFFLINE Red On steadily
Off
through , are located on the upper left of the craft interface next
0 3
PEM label. Table 13 on page 19 describes the functions of the power supply
Label Color State
Green On steadily
PEM
Red On steadily
Description
Critical alarm LED—Indicates a critical condition
that can cause the router to stop functioning.
Possible causes include component removal, failure,
or overheating.
Warning alarm LED—Indicates a serious but nonfatal
error condition, such as a maintenance alert or a
significant increase in component temperature.
Alarm cutoff/lamp test button—Deactivates red and
yellow alarms. Causes all LEDs on the craft interface
to light (for testing) when pressed and held.
RE0 show the status of the Routing Engine
. The LEDs labeled
0 RE1
Table 12 on page 19 describes the functions of the host
Description
Host is functioning as the master.
Host is online and is functioning normally.
Host is installed but the Routing Engine is offline.
Host is not installed.
Description
Power supply is functioning normally.
Power supply has failed or power input has failed.
Chapter 2: Hardware Components
show the status of the Routing
Craft Interface
19