
Industrial VPN Router NR500 Series User Manual
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Appendix C -Digital IO Scenario
Digital Input
Typical Application Diagram
DI1
DI2
GND
TX
RX
1
2
3
4
5
V+
V-
PGND
1
2
3
DI ELECTRICAL CHARACTERISTICS
1. Galvanic isolation;
2. Over-Voltage Protection: 36 VDC
3. Over-Current Protection
:
100mA per channel @ 25°C
Dry Contact Typical Application
Switch ON(Short to V-): DI Logic LOW
Switch OFF(Open): DI Logic HIGH
Switch1
Switch2
Digital Output
Typical Application Diagram
DO ELECTRICAL CHARACTERISTICS
1. Galvanic isolation
2. Over-Voltage Protection: 36 VDC
3. Over-Current Protection: 50mA per channel @ 25
℃
Wet Contact Typical Application
DO Logic LOW: Switch ON (Led ON)
DO Logic HIGH: Switch OFF (Led OFF)