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10
Table 2. LED descriptions (installed without a battery)
Component
LED indicator
Surge protective
AC power
device [11]
Power supply &
Mains or backup
battery charger [6]
No/Low battery or
battery replacement
Diagnosis
Router circuit board
LED5
[3]
LED7
Indicator
Definition
On
Normal operation. Router has AC power applied & fuses are
steady
functioning.
Off
Main power supply is missing or below operating threshold; or
AC line fuses are faulty or missing.
On
If mains power is present, this LED will be on & steady.
steady
Off
No AC power is present.
On
No battery is present.
On
Battery is disconnected or battery fuse is faulty.
2 blinks, pause
Off
Router is not operating from either AC power. The system is
shut down.
Blinking
Normal operation. Indicates that the Linux kernel is
operational.
Off
The Linux kernel is not operational & the device will not
respond to network requests.
Blinking
Normal operation. The gatekeeper/router is functioning &
operational.
Off
The gatekeeper/router functionality is not operational.
IL42-5150E
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