2013 New Design. Smaller and compact.  

Specifications:

•  RS232-485 bi-directional signal conversion

•  Bi-directional half-duplex data transmission

•  More than 1200 meters communication distance

•  Transmission rate is 0-115200BPS

•  Anti-static function

Package Included:

•  1 x RS-232 to RS-485 Passive Converter