User's Manual

R01.i RT System 2 v2.3 Deployment Guide 177
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D. LED Indicators
LIU Normal Operation
Table D–9 LIU LED Status Indications, Normal Mode
LED Indicators Summary Description
On, Disciplined to GPS
Checking firmware
MODE solid
The MODE LED indicates that the integrity of the
downloaded firmware is being verified.
Battery A in use A solid
Indicates Battery A in use powering LIU. Battery
Voltage is above depleted threshold.
Battery B in use B solid
Indicates Battery B in use powering LIU. Battery
Voltage is above depleted threshold.
LIU connected to Central LNK solid
GPS lock GPS solid
GPS disciplined Flashing:
• GPS flashes in the 1 s rhythm of the PPS
• MODE flashes in the 1 s rhythm of the PPS