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Amazon.com: Max485 Chip RS-485 Module TTL to RS-485 Module Raspberry Pi Pack of 5 : Electronics
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Amazon.com: DTech RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge : Electronics
Gimax New 6GK1500-0FC10 FC BUS CONNECTOR FOR SIEMENS SIMATIC DP PROFIBUS RS485 PLUG: Amazon.com: Industrial & Scientific
Amazon.com: Industrial Modbus RTU 8-Channels Relay Module with RS485 Bus Modbus RTU Protocol Onboard Multi Isolation Protection Circuits(Power Isolation, ADI Magnetical Isolation,etc.) 5V Voltage : Electronics
