Tomar Model 1790 STROBESWITCH
Optical Preemption & Priority Control Systems
The model 1790 STROBESWITCH™ is a compact low cost detector which detects a special strobe light signal and opens access gates to allow quick entrance. The detector is activated by the strobe emitters used by most fire department emergency vehicles to control traffic signals en route to a fire. The 1790–1014 STROBESWITCH™ interfaces with the TOMAR model 780–1228–PRE or GTT OPTICOM® traffic preemption optical signal emitters. The model 1790 features a 1/2” female pipe hub mounting base.
HOW DOES IT WORKS?
The emergency vehicle uses a special strobe light to transmit a continuously flashing optical signal. The TOMAR 1790–1014 STROBESWITCH™ receives this signal, and if the signal format is correct, activates a relay. The relay contacts may be used to control security gates, fire department garage doors, and other devices. Signaling is optical by line of sight, and the 1790 can operate indoors or outdoors, in bright sunlight, or in any weather. The unit is not susceptible to radio frequency interference, and uses digital frequency discrimination to reject unwanted signals, such as flashlights, emergency vehicle lighting systems, flashing signs, etc.