Feature1. Hardware interface 2. Connection type: 1 DR44 Female 3. Bus: 32 bit Universal PCI 4. Signal: RS-232: DCD, RXD, TXD, DTR, GND, DSR, RTS, CTS, RI 5. Transmission rate: 300bps-921.6kbps 6. Data bit: 5, 6, 7, 8 7. Stop bit:1, 1.5, 2 8. Check bit: None, Even, odd, Space, Mark 9. Flow control: RTS/CTS XON/XOFF 10. Operating temperature: