Is there a standard protocol for motion sensors, PIR sensors, etc. to tell parking lot lights, etc. that motion has been detected, so the lights need to turn on?
I'm not asking for protocols that could be used. Hundreds of protocols could be used for these systems, such as "+12 V for motion, GND for no motion", "X10", "+5V for no motion, GND for motion", "Zigbee", or etc.
What signal levels and number of wires, etc. are actually used with off-the-shelf sensors? (An ideal answer will link to one or more datasheets for such sensors).
(This question was split off from How do you dim a streetlight bulb? ).
While I appreciate the datasheet for the "actual sensor" PIR component, I'm not so much looking for the voltages/timing on the pins between the "actual sensor" and the PCB it is soldered to. I'm looking more for: What is the the voltages/timing on the long wires/cables running between the off-the-shelf prepackaged "sensor assembly" (is there a better term?) and the lights? How else can I design something to be compatible with many off-the-shelf devices, some of which haven't even been designed yet, rather than only working with one particular device?