BUS: X1 2.5Gbps PCI Express Flow control: RTS/CTS XON/XOFF Operating temperature: -40°C～85°C Transmission distance: RS-485/422 1.2Km Supports Win10/Win2000/XP/Vista/Win7/8/8.1/NT4.0/CE 4.2/5.0/6.0/Vxworks/Linux 2.4.x/2.6.x
Overview
●UT-794I industrial PCI-E multiport serial adapter with optic isolation is compatible with RS-422/485 standard, it converts PCI-E signal to balanced differential RS-422/485 signal.
●With built-in optoelectronic isolator and instant voltage control protector, it is designed to protect RS-422/485 ports; it adopts advanced TVS (TRANSIENT VOLTAGE SUPPERSSOR) instant voltage control.
●It is with lightning and ESD protection, provides 2,000V each wire with lightning surge protection, and surge voltage and instant overvoltage protection on circuit which causing by all reasons; the tiny interelectrode capacitance ensures high speed transmission for RS-422/485 ports.

Specification
● Singal: RS-422: T/R+, T/R-, RXD+, RXD-, GND
RS-485: Data+(A) Data-(B) GND
● Baudrate: 300bps-921.6Kbps
● Digit bit: 5, 6, 7, 8
● Stop bit: 1, 1.5, 2
● Check bit: None, Even, odd, Space, Mark
● Port protection: RS-422/485 each line 600W surge protection, ±15KV ESD protection

Original Packing Including
● 1×PCI-E to 4-port RS485/422 Serial Card
● 1×4-port serial cable
● 4×terminal blocks
● 1×CD drive
● 1×Card slot
● 1×User manual