HANDBOOK OF OPERATING AND MAINTENANCE
INSTRUCTIONS
RECEIVER CONTROLLER RC-1T2A
1.0 GENERAL:
The model RC-1T2A controller has been specifically designed to provide remote control of
airport lighting systems which require only one control function. This control system will allow the
approaching pilot to turn the runway lights on at his discretion. The RC-1T2A is enclosed in a
weather-proof water-tight housing and is conservatively designed for continuous outdoor
unattended operation.
The RC-1T2A receiver controller complies with FCC rules and regulations Part 15.
2.0 ELECTRICAL:
The receiver is an integrated-circuit design. The sensitivity is adjustable from 1 microvolt
to 30 microvolts as desired by the user, permitting a control range of 1 to 20 miles. Receivers are
shipped normally adjusted to a sensitivity of 10 microvolts. The unit is designed to operate from
120 volt ±20% 50-60 HZ single phase power.
3.0 THEORY OF OPERATION:
The system is activated by counting pulses of R.F. energy withing a 5 second timing period.
After receipt of five pulses during that period the relay K1 closes, sending 120vac to the
Control One terminal.
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 five pulses at any
time, reinitiating the 15 minute "run" cycle. The operating time may be selected in 15-minute
increments from 15 minutes to 1 hour by setting switches on the Receiver Board.
During testing, the 15-minute operating period may be terminated by pressing the Reset
Switch on the base assembly.
The solid-state receiver-controller is composed of three printed circuit cards which include
the Interface/Power Supply board, Relay Board, and Receiver/Decoder Board. The following
describes the theory of operation for each of the receiver-controller basic elements.
Reference: Functional Diagram Figure A.
