STS400™ INSTALLATION MANUAL
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3.7.1 Presence Sensor Input Connections
CAUTION:
Power is available directly to the Input Device, independently
from the Power Supply Switch inside the CBX.
The sensors included in the STS400™ have a standard pinout (brown = +Vdc; blue = GND;
black = switched) and can be connected to the Trigger and Input 2 as shown in the figures
below.
Sensor 1
CBX500 ATS Row 2
Function
brown
+V
Power Source - External Trigger
black
I1A
External Trigger A (polarity insensitive)
blue
I1B
External Trigger B (polarity insensitive)
-V (bridge to I1B)
Power Reference - External Trigger
Figure 13 – Presence Sensor Connected to External Trigger
The yellow Trigger LED on the reader is on when the active state of the External Trigger
corresponds to ON.
Sensor 2
CBX500 ATS Row 3
Function
brown
+V
Power Source - Inputs
black
I2A
Input 2 A (polarity insensitive)
blue
I2B
Input 2 B (polarity insensitive)
-V (bridge to I2B)
Power Reference - Inputs
Figure 14 – Presence Sensor Connected to Input 2
(brown)
(black)
(blue)
Presence Sensor Photocell (PNP)
(brown)
(black)
(blue)
Presence Sensor Photocell (PNP)
