Bidirectional opto-isolated RS232 to RS485 converter allows to interface your devices using RS232 communication link to balanced differential RS485/RS422 link and vice-versa. Surge Protected Interfaces Protect Equipment, High Speed Data and the Converter Powered RS485 isolator provides optical isolation up to 2500Vrms 500DC continuity; transient voltage suppressor TVS supports 600W lightning surge protection over each line of RS485/422 link; 15KV static protection over RS232 link effectively protects your value devices against high voltage spikes. With built-in booster to amplify signals, it’s a quick simple solution for most industrial automation, commercial computer network application, motor control, even tough environments to have PC in charge of controlling a given process in long haul data acquisition and control applications. Automatic Data Direction Control ADDC - detect the incoming or outgoing data and automatically switch into the send or receive mode, so no need to worry about data collision problems. Rack-mounted serial adapter box offers multiple interfaces : RS-232 end is a standard DB9 female connector, RS-485/RS-422 end offers 2 interfaces to chose from: RJ45, screw terminals. Specific RS232 Link : DB9 Female RS-485/RS-422 Link : RJ45 Female, 6 Position Terminal Board Standards: EIA RS-232, RS-485, RS-422 Signals: RS-232 (TXD, RXD, GND), RS-485 (T/R+, T/R-, GND), RS-422 (T/R+, T/R-, RXD+, RXD-, GND) Port Protection: 1500 W surge, 15 kV static discharge; Isolation: 2500Vrms isolation voltage, 500DC continuity DC/DC Max Distance (RS-422/RS-485 link): 1.2km at 9600 bps, 600m at 38400 bps, 300m at 115200bps Loading: 32 nodes; wired via twisted pair or shielded wire What's Included 1 x Mountable RS-232 to RS-485 Adaptor 1 x Power Supply Adapter 1 x Terminal Board 1 x DB-9 Male to Female Cable 1 x Manual