The switching input/output module is a module that can collect and control the digital switching value. It is connected with the wireless data transmission radio through the RS232 interface, and the communication protocol is Modbus protocol. The switching input and output module can collect two digital switching states and output two dry contacts simultaneously. And it is transmitted through wireless digital radio for remote control. Features - • It is connected to the wireless digital transmission radio through RS232 • Modbus protocol is adopted as the communication protocol • Baud rate: 9600/19200bps • Man-machine interface: 3LED light indicates working status Specification - • Digital radio RS232 interface • Analog input volume level output channels: 8 • Digital input-output channels: 4 • Isolation voltage: 3000VDC • Data and alarm refresh cycle: <0.5 seconds • Switching the maximum effective distance: 500m • Accuracy: ± 0.5 % • DC power supply range: 12 ~ 36VDC • Power consumption: <0.6W • Working environment: -10 ℃ ~ +60 ℃; 5 ~ 95% RH • Storage temperature: -20 ℃ ~ +70 ℃ • Communication: RS-485/232 • Effective communication distance: 0.1 ~ tens of kilometers • Over-the-air transmission rate: 9600/19200bps • Radio frequency: 150/230/400/800MHz • RF output power: 0.1 ~ 25W • Receiver sensitivity:-115dBm @ 10E-6BER • Radio Operating temperature: -40 ~ +70 ℃ Applications - • Remote Control of Defense Systems • Automation • UAV Command & Control • Switching Systems