Positive power input, supporting 3~5.5V input

Common grounding terminal, power supply negative terminal input;

Default hanging;

Modem output signal of serial data, requesting transmission

Serial port sends data, TTL level communication voltage only supports 3.3V, if connected to 5V, level conversion is required;

The serial port receives data. The TTL level communication voltage only supports 3.3V. If
connected to 5V, level conversion is required;

RS485 enable control pin, set high when the serial port sends data, and set low in normal stat

Modem input signal of serial data, clear transmissio

External reset input, effective at low level

Default hanging

Network interface link indicator output,Output 4Hz square wave within 3 seconds after
power-on High level is output by default, low level is output after successful connection under TCP protocol, and low level is output by default under UDP protocol

Running indicator foot

4hz square wave output within 3 seconds after
power-on

The network cable is not connected: output 5hz
square wave
Network cable connected: but not connected:
output 1hz square wave
Network connection succeeded: output 0.33hz
square wave
When the serial port has data receiving and
sending, output 60ms pulse low level

Restore the factory pin and pull it down for 5s to
take effect

Serial port transmission indicator;
Output 4Hz square wave within 3s after power-on
After 3 seconds, the low level of the network
cable is not detected, and the high level is output
when the network cable is detected,
After the network cable detection is completed,
the low level square wave signal is output when
there is data output, and the low level square
wave signal is output with a period of 80ms when
there is data continuously

Output 4Hz square wave within 3s after power-on
After 3 seconds, the low level of the network
cable is not detected, and the high level is output
when the network cable is detected,
After the network cable detection is completed,
the low level square wave signal is output when
there is data input, and the output period is 80ms
when there is continuous data, and the low level
square wave signal is 20ms;

Common grounding terminal, power supply negative terminal input

Power access indicator

4hz square wave output within 3 seconds after
power-on
The network cable is not connected: output 5hz
square wave
Network cable connected: but not connected:
output 1hz square wave
Network connection succeeded: output 0.33hz
square wave
When the serial port has data receiving and
sending, output 60ms pulse low leve