SUNIX IPC-P2102, industrial standard universal PCI serial communication card, allows users to expand two RS-422/485 ports on PC-based system.

Each serial port achieves data rates up to 921.6 Kbps and utilizes 16C950 UART with an on-chip 128-bytes hardware FIFO buffer for reliable, high-speed serial I/O.
With SUNIX patented Auto-Switching RS-422/485 and RS-485 AHDCTM technology, user can easily manage different serial interfaces selection and RS-485 signal direction control.
Under RS-485 mode, the board can connect up to 31 daisy-chained RS-485 devices within a range of 1.2 km. SUNIX serial board supports a wide variety of operating systems, including Windows, Linux, DOS, and UNIX. It is the best serial communicating solution for industrial and harsh environment applications.

Features
Expands 2 independent RS-422/485 serial ports with communication speeds up to 921.6Kbps
High reliability SUN1989 16C950 compatible UART controller on-board.
Compliance with PCI 33MHz Ver 3.0, 2.3, 2.2 & 2.1 specifications
Supports both 64-bit & 32-bit PCI bus slot and 3.3V & 5V power
RS-422/485 auto detect and switching technology ? jumper and software free
AHDC/CSTM technology for collision free communication
Ultra low power consumption design for Green Environment.
Built-in 15KV ESD protection for all serial signals meets IEC1000-4-2 standard.
Plug-n-Play, I/O address and IRQ assigned by BIOS
Certified by CE, FCC, RoHS, and Microsoft WQHL approval
Support Microsoft Windows, Linux, and DOS

Interface RS-422/485
Controller SUNIX SUN1989 (16C950 UART Compatible)
Bus Universal PCI 64/32bit 3.3V/5V PCI Ver 3.0, 2.3, 2.2, 2.1
No. of Port 2-port
IRQ & IO Assigned by System
FIFO 128 byte (Hardware)
Signal : RS-422: TxD+, TxD-, RxD+, RxD-, GND
4-wire RS-485: TxD+, TxD-, RxD+, RxD-, GND
2-wire RS-485: Data+, Data-, GND
Baud rate 50 bps to 921.6 Kbps
Data bit 5,6,7,8
Stop bit 1,1.5,2
Parity None, Even, Odd, Space, Mark
Flow Control Xon/Xoff (software)
Protection : ?15KV ESD protection for each signal Human Body Model (HBM); ?15KV IEC1000-4-2 Air Gap Discharge; ?8KV IEC1000-4-2 Contact Discharge

OS Support:
Microsoft Client : Windows XP/Vista/7 (X86/X64)
Microsoft Server : Windows 2000/2003/2008 (X86/X64)
Microsoft Embedded : Windows CE5.0/6.0/XP Embedded/POS Ready 2009/Embedded System 2009
Linux Linux : 2.4.x / 2.6.x
DOS : DOS
FreeBSD : FreeBSD 5.3~5.5 / 6.0~6.4
QNX : QNX 6.3.2/6.4.0
* IBM OS/2 : WARP 3/WARP 4
* SCO UnixWare : UnixWare 7.1.3/7.1.4/ Open Server 5.0.7/6.0
* Sun Microsystems : Solaris 10
( * - supported by special inquiry)

Environment
Operation Temperature 0 to 70°C (32 to 158°F)
Operation Humidity 5 to 95% RH
Storage Temperature -20 to 85°C (-4 to 185°F)

Dimension
PCB Dimension 120 x 62 mm
Bracket Standard 121 mm