波士電子：RS-232/RS-485正宗專業廠家 

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RS-232/RS-485/RS-422 converter   

To realize RS-232 to RS-485(or RS-422) convertion.

RS-232/RS-485/optical-fiber converter

To realize RS-232 to optical-fiber convertion.

To realize RS-485/422 to optical-fiber convertion.

RS-232 optical-isolator and extender

To realize RS-232 optical-isolation with no power supply.

RS-232/RS-485 extender,RS-485 repeater

To extend RS-485、isolate RS-485.

RS-232 expander,Data converter,ethenet,USB

To add RS-232 or RS-485 port from one rs-232.

     Converter ethenet or USB to RS-232/485