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485 relay module IO control board 8-way switch acquisition input and output RS485 serial port

32 Channel Input Switching Value Acquisition Serial Port 485 Modbus RTU Switch Board Automatically Sends

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Network 485 Serial Relay Output IO Control 4g Module Switch Analog Acquisition Input Ethernet

Multiplex Serial Port Relay 232/485 Switch Value Acquisition Input/output Industrial Control Modbus Optocoupler

16 Channel Serial Port Relay 232/485 Switch Value Acquisition Input/output Industrial Control Modbus Optocoupler

Switching Value Input and Output Module 4-20mA to 485 Analog Quantity Acquisition Module Input and Output Remote IO Controller

Digital quantity IO acquisition module to RS485 modbus 16 channel switching quantity input output isolation DAM4055

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RS232 RS485 RS422 to Fiber Converter 3 in 1 RS-232/485/422 Serial Data to Optic Fiber Modem Encoder

5PCS 10pcs Bundle USB TO RS232 RS485 Connector Serial Communication Industrial Grade USB-232/485 Portable Signal Converter

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RS232 RS485 RS422 to Fiber Converter 3 in 1 RS-232/485/422 Serial Data to Optic Fiber Media Converter

RS232 RS485 RS422 to Fiber Converter 3 in 1 RS-232/485/422 Serial Data to Optic Fiber Modem Encoder

5PCS 10pcs Bundle USB TO RS232 RS485 Connector Serial Communication Industrial Grade USB-232/485 Portable Signal Converter

RS232 RS485 RS422 to Fiber Converter 3 in 1 RS-232/485/422 Serial Data to Optic Fiber Modem Encoder

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