
Installing the FlexPS processor
FlexPS Product Guide
Page 57
Flex audio
The microphonic sensor cable picks up and carries audio signals from each zone to the processor.
The audio signals originate with the fence noise in the monitored zone. When an audio zone is
selected, the processor amplifies the signal from the selected zone and places it on the audio bus.
Senstar recommends that the audio bus be connected to a 600
input impedance amplifier. A
speaker should be located in the control room to listen to the fence noise.
Senstar recommends 22 AWG shielded twisted pair for audio cable. The audio outputs are daisy
chained from processor to processor and are connected to an amplified speaker in the control
room. In-line amplification may be required for any wire runs longer than 1800 m (5900 ft.) based
on 22 AWG shielded audio cables. The audio gain for each processor should be adjusted via the
UCM to ensure that the audio volume is consistent from processor to processor.
Figure 64: Self-test/Audio/Auxiliary device input wiring examples
AUX 1 AUX 2
-
+
-
+
R1
5.1K
R1
5.1K
NO self-test inputs
NO audio activation
Local control mode
R2
820
R1
5.1 K
R2
820
R1
4.3 K
AUX 1 AUX 2
-
+
-
+
dual resistor supervision
NO alarm NC supervision
dual resistor supervision
NC alarm NC supervision
Network control mode
AUX 1 AUX 2
-
+
-
+
NO auxiliary input
unsupervised
NC auxiliary input
unsupervised
Network control mode
R1
5.1 K
R1
5.1K
AUX 1 AUX 2
-
+
-
+
single resistor supervision
NO alarm NC supervision
single resistor supervision
NC alarm NC supervision
Network control mode