Passive RS232 TO RS485 Converter,Commercial Version,no power need,STM485C

STM485C:Passive RS232 to RS485 converter,Commercial Version,no power need. 

Specification & Features

1.Compatibility: EIA/TIA RS232C standard and RS485 standard
2.Interface RS232 side: DB9 female connector.
3.Interface RS485 side: DB9 male connector with optional (included) terminal board.
4.Transmission rate: 300 - 115200bps
5.Transmission distance: RS485 max. 1200m, RS232 side max. 5m
6.Working mode: asynchronous, half-duplex, differential transmission.
7.Working environment: 0 ~ 70°C, relative humidity 5% - 95%
8.Mechanical dimensions: 95mm x 33mm x 17mm