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Product Overview
YT-908 is a stable and reliable 8-channel intelligent detection module for switch status, providing acquisition and conversion functions from 8-channel switch input to RS485 signal output. Remote important equipment on/off and status collection can be achieved through RS485. The communication protocol adopts Modbus RTU to achieve the fastest industrial transmission. The RS485 interface effectively implements photoelectric isolation technology, effectively suppressing lightning, lightning strikes, ESD, and common ground interference. Provide a five-year warranty service.
Product features:
It can detect the on/off status of each switch in real-time and convert RS485 signal output;
Adopting Modbus RTU communication protocol;
RS485 communication interface provides photoelectric isolation and 600W surge protection per line;
The power supply has good overcurrent and overvoltage protection functions, as well as anti reverse connection protection;
8-way LED indicator switch input status;
The acquisition input end adopts photoelectric isolation technology;
Easy installation.

System parameters
8-way input terminal can be directly connected to dry contact input
Each circuit is equipped with independent photoelectric isolation, with an isolation voltage of over 2500 volts
485 output adopts balanced current transmission, with strong anti-interference ability
Adopting data flow automatic control technology to automatically identify and control the direction of data transmission
Adopting Modbus communication protocol (can be defined according to user requirements)
Work environment
Working temperature: -20 ℃ to 60 ℃
Humidity: Relative humidity 5% to 95%
Working power supply
Input power supply: external power supply DC12V
Input current: within 200mA
Mechanical structure
long × wide × Height: 100mm × 72mm × 26mm (DB9)
Shell: Plastic shell
Color: Blue
Weight: 200g