AR3000 User’s Manual
15
Rev 1/10
4.1.5.
Alarm Outputs (Red/Blue or alternate Orange, Violet)
The Red/Blue or alternate Orange (Q1) and Violet (Q2) wires are the Alarm Outputs.
See Alarm Output Operation (section 6) for operation options and details.
The Alarm Outputs are open collector PNP transistor switches to the positive power supply
(VCC). When a Alarm Output is not active, its output will be high impedance and no current
will flow through it. When a Alarm Output is active (On) it can source up to 200mA of
current. A current limiting circuit will protect the output in the case of a short circuit.
The load for the output should be connected to ground (Gray/Pink or alternate Tan wire).
The voltage on the Alarm wire must not exceed the limits of the Power Supply connection
voltages (Blue and Gray/Pink or Tan wires), or excessive current may flow into the sensor
and cause damage.
Figure 13 Wiring diagram for Alarm Outputs
white
brown
green
yellow
grey
pink
blue
red
black
violet
grey/pink (tan)
red/blue (orange)
