1. RS232 side in DB9 female 2. RS485 side in RJ-45 and binding post 3. Max connection: 32 RS485 devices; Max: 1.2 KM (9,600BPS). 4. Baud rate: 300BPS-115.2KBPS. 5. Dimensions:113mmX55mmX25mm 6. Indicator: Power, Data traffic 7. Environment:-25℃ to 70℃, relative humidity 5%-95%. 8. Protection: 600W lightning strike and grounding interference protection for RS-485