difference between rs232 and rs422

- 2 Products Available
  •  USB to RS485/UART Module, Supports Plug-and-play Manufactures
    ...Key Specifications/Special Features: Most of devices use the RS232/RS485/RS422 interface to transfer data Since most of PC take off the RS232 port, only left the USB port The module used... more
    Brand Name:IECONT
    Model Number:IEC-M013.
    Place of Origin:china

    USB to RS485/UART Module, Supports Plug-and-play

    Iecont Technology Inc
    [Taiwan,China]
  •  Multifunctional 4 Channel Video To Fiber Converter 110bps-115.200Kbps Manufactures
    Multifunctional 4 channel Video+Ethernet+Audio+Phone Multiplexer - BNC to Fiber Optical Transmitter Specifications * 4ch video to fiber * Audio, Ethernet, Phone, Data optional * thunder-protection design * 1 year warranty, all life service Multifunctional... more
    Brand Name:HD
    Model Number:HD-SDI-3G-4V1D-T/RF
    Place of Origin:China

    Multifunctional 4 Channel Video To Fiber Converter 110bps-115.200Kbps

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