Installation guide

When wired correctly, green indicators on the IR2R and IR2S are always lit. Only when the door is open and the
IR2R is receiving infrared from the sender does the IR2R’s amber indicator light. The HAL does not check the IR2
wiring for errors. The IR2R’s green indicator flashes when the output is short-circuited. The amber indicator flashes
when the signal is marginal, as for a dirty sensor, or if it’s too far away. The IR2 will operate with up to 5 feet (1.5
meters) between sensors.
NOTE: Distinguishing the IR2R from the IR2S: Both the send and receive IR parts have brown and blue
wires, but the receiver also has a black wire.
CHAPTER 2: Introduction to the HAL System
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