**Adaptador RS-232 a RS-485 7

1) Serial port feature :Concurrently compatible with RS-232C, RS-485 standard of EIA/TIA 

2) Electric interface: Db9 hole interface of RS-232C end, DB9 pin connector of RS-485 end, compatible with post 

3) Work methods: asynchronous half duplex 

4) Transmission media: common wire, double wire or UTP or shielding Line 

5) Transmission distance: 5 meters (RS-232 end) 1.200 meters (RS-485 end) 

6) Work environment: -10°C to 85°C, relative humidity: 5% to 95% 

7) Signals: RS-232: TXD, RXD, RTS, CTS, DTR, DSR, DCD, GND; RS-485: Date+, Date-, GND 

8) Transfer rate: 300-115200BPS