1) Standard: EIA RS-232, RS-485, RS-422 standard

2) RS-232 signal: TX, RX, GND

3) RS-485 signal: D , D-, GND

4) RS-422 signal: R , R-, T , T-, GND

5) Working format: asynchronism, point to point or multi-point,2 line half duplex,4 line duplex

6) Direction: automatic send data control-no software driversneeds

7) Band rate: 300-115200bps, automatic test signal rate

8) Loading: support 32 port loop environment (or handtailor 128point)

9) Transmission: RS-485/422 side 1800M (115200bps), RS-232 sideless than 5m

10) Protection: 1,500W surge protection, 15KV static electricityprotection

11) Opto-electronic isolation: 2,500V

12) Connection: RS-232 side DB-9 female, RS-422 side DB-9 maleor 5 terminal blockor RJ45

13) Operating temperature: -20 to 60??C

14) Storage temperature: -25 to 85??C

15) Relative humidity: 5% to 95%

16) Input powered: 9V external powered

17) Consumption: static consumption less than 70mA, dynamicaverage consumption less than 200mA

18) Dimensions (L x W x H): 120 x 33 x 16.5mm

19) Shell: iron

20) Color: white

21) Weight: 200g