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External-powered RS-232 to RS-485/422 Mini-size PhotoElectric Isolation
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  • $53.75 
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PCI to 2 Ports RS485/422 PCI Card Optical Isolation Surge protection 1053 Chip
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  • $53.75 
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4 Port USB2.0 to Serial RS232 DB9 Splitter 4 com to usb2.0 RS-232 cable
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  • $94.96 
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RS-232/RS-485 to 4 Ports RS-485 Hub (Din Rail) 4 Port RS485 HUB Adapter
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  • $91.97 
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FTDI USB-RS232-WE-1800-BT Cable, USB-RS232-WE USB to RS232 Serial Cable,1.8M, Wire END (5V)
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  • $37.69 
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