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4 Serial Port RS232/RS485/RS422 to Ethernet Converter
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Serial to WiFi Ethernet Wireless Converter RS232 RS485 Serial Server (USR-W610)
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USR-TCP232-410s RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS
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StarTech.com USB to Serial Adapter - 2 Port - RS232 RS422 RS485 - COM Port Retention - FTDI USB to Serial Adapter - USB Serial (ICUSB2324852)
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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
