Description: and It is widely used in industrial automation,door safe,all-in one-card,car parking,ATM,bus charge,eatery sell Compatible with EIA or TIA RS232 and RS485 standard Interface RS232 side:DB9 female connector Interface RS485 side:DB9 male connector with optional terminal board telecommunication agreement Work environment:-10degree to 86 degree,relative humidity:5 percent to 95 percent Working mode:asynchoronous,half-duplex,differential transmission Transmission media:common wire,double wire or UTP or Shielding line Transmission rate:300-115200bps,which is capable of applying between host computers host computer Transmission distance:RS485 max.1200m,RS232 side max.5m Dimension:5.5cm x 3.5cm x 1.8cm(LxWxH) Package includes: 1 x RS-232 to RS-485 Interface Serial Adapter Converter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.