Juniper SRX 5800, Hardware Manual

Page: 36 / 536

SRX5800 Services Gateway Craft Interface Alarm LEDs and Alarm
Cutoff/Lamp Test Button
Two large alarm LEDs are located at the upper right of the craft interface. The circular red LED lights to
indicate a critical condition that can result in a system shutdown. The triangular yellow LED lights to indicate
a less severe condition that requires monitoring or maintenance. Both LEDs can be lit simultaneously. A
condition that causes an LED to light also activates the corresponding alarm relay contact on the craft
interface.
To deactivate the red and yellow alarms, press the button labeled ACO/LT (for “alarm cutoff/lamp test”),
which is located to the right of the alarm LEDs. Deactivating an alarm turns off both LEDs and deactivates
the device attached to the corresponding alarm relay contact on the craft interface.
Table 5 on page 37 describes the alarm LEDs and alarm cutoff button in more detail.
Table 5: Alarm LEDs and Alarm Cutoff/Lamp Test Button
Description State Color Shape
Critical alarm LED—Indicates a critical condition that can cause the
device to stop functioning. Possible causes include component removal,
failure, or overheating.
On steadily Red
Warning alarm LED—Indicates a serious but nonfatal error condition,
such as a maintenance alert or a significant increase in component
temperature.
On steadily Yellow
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.
– –
SRX5800 Services Gateway Craft Interface Host Subsystem LEDs
The host subsystem has three LEDs, located in the middle of the craft interface, that indicate its status.
The LEDs labeled RE0 show the status of the Routing Engine and SCB in slot 0 .
The LEDs labeled RE1 show the status of the Routing Engine and SCB in slot 1. Table 6 on page 38 describes
the functions of the host subsystem LEDs.
37