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BLOCKsignalling
www.blocksignalling.co.uk
The signal normally shows green. When the train passes the detector, the signal
switches to red. Once the train has fully cleared the detector, the module switches
the signal back to green (via yellow and double-yellow if appropriate).
The duration of the red, yellow and double-yellow stages can be adjusted, as can the
time the sensor needs to be cleared before initiating the sequence returning to green
and the sensitivity of the detection. Adjusting the time the sensor needs to be cleared
can be useful to prevent incorrect detection of the train having passed due to the
small gaps between the rolling stock.
This controller is designed for connection to signals which have a common-cathode
(common negative) connection. This is normally the case for UK manufactured
signals. European and American signals generally use a common-anode
connection, which can be powered from our identically featured ASP2A.
Features
No calibration required
– works out of the box.
No modifications required to rolling stock.
Not affected by light or dark, or changes in light level.
Designed and manufactured in the UK.
Power Supply
The module operates from a 12V DC power supply. With the signals operating, the
current consumption is approximately 0.025A (25mA)
Please double check all wiring before applying power, as incorrect wiring can
damage the unit.
