STACK ST8100 Display System Error! Main Document Only.Chapter 5. Installing the Display System
Users Guide 35
Power supply to Trackside beaconPower supply to Trackside beacon
The beacon operates from a 12v DC supply. A sealed lead-acid battery
with a minimum rating of 2.5 Amp/hour is recommended. This provides
about 15 hours of operation.
The condition of the battery is indicated by the colour of the LED
indicator on the front panel of the unit:
1. Green: The voltage is, at present, adequate for use
2. Red: The voltage is too low (replace the battery).
3. No Colour: Battery exhausted or disconnected.
Lateral Acceleration sensorLateral Acceleration sensor (optional) (optional)
The lateral Acceleration sensor measures 23 mm x 23 mm x 11.5 mm. It
is fitted with a 320 mm cable to connect it to the wiring harness cable
labelled 'A'.
The most suitable place to fit the lateral Acceleration sensor is as close as
possible to the vehicle's centre of gravity.
The sensor must be positioned vertically with its side with the Stack
label facing the left side of the vehicle. The side from which its cable
emerges can be positioned at any angle.
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