ITEM NAME:Industrial RS232 to RS485 RS422 Serial Adapter Communication Data Converter Description: - -Professional RS232 to RS485/RS422 converter. Connecting any RS485 or RS422 device directly to COM port. - -Serial charge pump drive technology, no external power supply, the real three-wire communication (TXD,RXD,GND). - -Protect sensitive industrial equipment with integrated ESD protection. - -Transmission distance: RS422 maximum 1200m (4000Ft), RS232 maximum 15m(50Ft). - -Support Mac OS, Windows 95/98/2000/2003/XP/Vista, Win 7/8, etc. Specification: - Material: Plastic&Metal - Size: 60x30x15mm/2.36x1.18x0.59inch Package Included: 1 Piece Adapter Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. SKU: QVW0019882463017216.Professional RS232 to RS485/RS422 converter. Connecting any RS485 or RS422 device directly to COM port. - -Transmission distance: RS422 maximum 1200m (4000Ft), RS232 maximum 15m(50Ft). 1 Piece Adapter.