Normal operating voltage: 15 to 32 VDC.
Maximum current draw: 6.5 mA (LED on).
Average operating current: 350 μA direct poll, 375 μA group
poll with LED flashing, 485 μA Max. (LED flashing, NAC
Maximum NAC Line Loss: 4 VDC.
External supply voltage (between Terminals T10 and
T11): Maximum (NAC): Regulated 24 VDC; Maximum
(Speakers): 70.7 V RMS, 50W.
Drain on external supply: 1.7 mA maximum using 24 VDC
supply; 2.2 mA Maximum using 80 VRMS supply.
Max NAC Current Ratings: For class B wiring system, the
current rating is 3A; For class A wiring system, the current rating is 2A.