User's Manual Part 2

Draft

162 RT System 2 v2.3.0 Deployment Guide R01.b

D. LED Indicators

WRU Undeployed

After removing both batteries from an undeployed WRU, and then replacing BAT A, BAT B, or

both, when the first battery is connected, the WRU goes through the power on LED sequence

and then remains in the undeployed state.

The following table shows the LED power-on sequence for an undeployed WRU:

Table D–1 WRU LED Indications, Undeployed

LED Indicators Summary Description

Undeployed

Dead batteries

If no LEDs are on (lit up) on an undeployed

WRU, it can be one of the following scenarios:

• Unit undeployed

• Batteries dead

When you do a tilt test (geophone down) on

an undeployed WRU with no LEDs on, the

following may occur:

• An Undeployed WRU deploys and begins

the self tests

• A WRU with dead batteries will continue

to display no lit LEDs

• A WRU is defective if no LEDs turn on

after battery replacement.

NOTE: Battery state is shown in the RT

System 2 user interface tables. For

example, the Ground Equipment

Table.

Geo down tilt

detected

Deploy

Tilt the WRU with the geophone pointing

down.

After a few seconds, all of the LEDs light up

solid.

Place the WRU flat on the ground to within

five seconds to begin the deployment

process:

• Battery fuse self-test

• Battery test

•THD test

• Geophone test

• GPS fix

•Radio test