The model RC-1T5M controller has been specifically designed to provide remote control of airport lighting systems which require three separate control functions and a delay in activation during the timing period to limit unwanted relay contacts. This control system will allow the approaching pilot to select high, medium or low levels of runway light intensity at his discretion. The RC-1T5M is enclosed in a weather-proof watertight housing and is conservatively designed for continuous outdoor unattended operation.

     The design and construction are compliant with FAA specification L-854. The RC-1T5A receiver controller complies with FCC rules and regulations Part 15.

   The system is activated upon receiving a series of pulses of R.F. energy within a 5 second period. The unit counts from the time of the first pulse received and activates the designated relays after the 5 second period expires. This limits unwanted relay contacts in MALSR Systems. Receipt of three or four pulses K1 closes, five or six pulses, K1 and K2 close, seven or eight pulses, K1, K2, and K3 close.

  The solid-state timer will continue to operate for 15 minutes after which it will cause the system to revert to the original "off" condition. The timer is reset by the receipt of any command at any time, reinitiating the 15 minute "run" cycle. Operating time may be selected in 15-minute intervals up to 1 hour by DIP switch settings on the Receiver Board. 

  During testing, the 15-minute operating period may be terminated by pressing the Reset Switch on the base assembly.   

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