20
EtherWAN Series Router Hardware Installation Guide
I/O Configurations
I/O Configurations
You can use Pin 4 (GPIO) green wire as:
•
Pulse counter
•
Digital input
•
Analog input
•
Digital Output / Low Side Current Sink
•
Digital Output/Open Drain
Pulse Counter / Digital Input
You can connect pin 4 - GPIO the to a pulse counter to monitor frequencies to 512 Hz,
with duty cycle between 25%-75%. or a digital input to detect the state of a switch or to
monitor an external device such as a motion detector, a remote solar panel, or a remote
camera. Digital input can also be used with the Standby Timer.
High Side Pull-up / Dry Contact Switch Input
The voltage on Pin 4 when the high side pull-up is enabled (depends on the Vin
and power consumption.
Input Range
State
0 - 1V
Low
2.7 - 36V
High
