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25-pin Opto-Isolated RS232 to RS485 / RS422 Converter (Industrial / Po – CommFront
Serial USB-30 to RS232/RS485 Adapter - Nanjing Runze Fluid Control Equipment Co., LTD.
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StarTech.com 8 Port Serial Hub USB to RS232/RS485/RS422 Adapter, Industrial USB 2.0 to DB9 Serial Converter Hub, IP30 Rated, Din Rail Mountable Metal Serial Hub, 15kV ESD Protection - 6ft Locking Cable
RS232-RS485/422 Converter | AMSAMOTION
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Amazon.com: DTECH RS232 to RS485 Converter 2 Pack Bidirectional RS-485 to RS-232 Serial Adapter with Terminal Block for Industrial Long Haul Data Communication : Electronics
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