Compatibility: EIA/ RS232C standard and RS485/RS422 standard<br> Interface RS232 side: DB9 female connector<br> Interface RS485/RS422 side: DB9 male connector with optional (included) terminal board<br> Transmission rate: 300 to 115,200bps<br> Transmission distance: RS422 maximum 1200m, RS232 side maximum 5m<br> <br> Working modes: asynchronous, duplex and differential transmission<br> Working environment: 0 to 70 Celsius<br> Relative humidity 5 to 95%<br> Colour:Photo Color<br> Material:ABS<br> Size:95 x 33 x 17mm<br> <br> Package Contents:<br> 1 x RS422 Converter<br> <br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.