Digital I/O Port Cases; Connecting An Occupancy Sensor To The Digital I/O Port; Connecting A Two-Position Switch To The Digital I/O Port - Extron electronics TLP Pro 525 Series User Manual

Digital I/O Port Cases

Connecting an Occupancy Sensor to the Digital I/O Port

Figure 25.
Port Configured — Input (switch 1 open, switch 2 open)
Room Occupied — Digital input reads +2.8 to 24 VDC = Logic High
Room Unoccupied — Digital Input reads 0 VDC = Logic Low
NOTE: An occupancy sensor typically supplies +24 VDC when occupancy is detected. After

Connecting a Two-position Switch to the Digital I/O Port

Figure 26.
Port Configured — Input with pullup (switch 1 open, switch 2 closed)
Two Position Switch Open — Digital input reads +5 VDC = Logic High
Two Position Switch Closed — Digital Input reads 0 VDC = Logic Low
+5.0 V
1k ohms
SW 2
CTL
Voltage
Protection
SW 1
Connecting an Occupancy Sensor to the Digital I/O Port
a defined period when no occupancy is detected, the sensor supplies 0 VDC.
+5.0 V
1k ohms
SW 2
CTL
Voltage
SW 1 Protection
Connecting a Two-position Switch to the Digital I/O Port
TLP Pro 525, 725, and 1025 Series Touchpanels • Reference Material
Digital
Control
I/O
Signal
Ground
GND
Two-position
Switch
Digital
I/O
GND
32