8 Industrial Serial RS232 / 422/485 PCI communication card







SUNIX IPC-P3108, industrial standard universal PCI serial communication card, allows users to expand eight RS-232/422/485 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 AHDC™ 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 and DOS. It is the best serial communicating solution for industrial and harsh environment applications.












  • Expands 8 independent RS-232/422/485 serial ports with communication speeds up to 921.6Kbps.
  • High reliability SUN1999 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.




 Product Description  8-port RS-232 / 422 / 485 Universal PCI Board

 Serial Communication

 Interface  RS-422/485
 Controller  SUNIX SUN1999(16C950 UART Compatible)
 Bus  Universal PCI 64/32bit 3.3V/5V PCI Ver 3.0, 2.3, 2.2, 2.1
 No. of Port  8-port
 IRQ & IO  Assigned by System
 FIFO  128 byte (Hardware)
 Signal  RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND, RI
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
 PCB connector  DB62 Female

 Driver Support

 Windows Client  XP/Vista/7/8/8.1 (X86/X64)
 Windows Server  2000 / 2003 / 2008 / 2008 R2 / 2012 / 2012 R2 (X86/X64)
 Windows Embedded  Windows CE 4.2/5.0/6.0
XP Embedded / POSReady 2009 / POSReady 7 / Embedded System
 Linux  Linux 2.4.x / 2.6.x / 3.x
 FreeBSD  FreeBSD 5.3~5.5 / 6.0~6.4
 QNX  QNX 6.3.2/6.4.0

 Regulatory Approvals

 Hardware  EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, FCC Part 15 Class B,
BSMI: CNS13438, C-Tick: CISPR22 AS/NZS, RoHS
 Software   Microsoft WHQL Windows
• Windows Client: XP/Vista/7/8/8.1 (X86/X64)
• Windows Server: 2000/2003/2008/2008 R2/2012/2012 R2  (X86/X64)


 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)


 PCB Dimension  120 x 107 mm
 Bracket  Standard 121 mm
 Bracket Space  1
Download Datasheet 
Download Manual: PCI RS-422485 Manual-771-PCI422002-S01 

Download Manual: PCI RS-232422485 Manual – 771-PCI3SER02-S01 
Driver: SUN1999Driver V8.2.2.0_SRV (WHQL)
Version: Ver
Update: 2017-02-24 14:50:55
Size: 5.4MB


Windows Server 2016 64bit
Driver: SUN1999Driver V8.2.2.0 (WHQL)
Version: Ver
Update: 2017-02-24 14:40:29
Size: 5.4MB


Windows 10 32/64 bit
Driver: I/O Card driver for linux
Version: v2.0.4.2
Update: 2016-07-06 17:36:26
Size: 274KB


Linux 2.4x/2.6x/3.x/4.x
Driver: SUN1999Driver V8.2.0.0 (WHQL) with inf – 20151208
Update: 2016-03-18 09:38:47
Size: 4.8MB


Windows 10 32/64 bit
Windows 8.1 32/64 bit
Windows 8.0 32/64 bit
Windows 7 32/64 bit
Windows Vista 32/64 bit
Windows Server 2012R2 64-bit
Windows Server 2012 64bit
Windows Server 2008 R2 64bit
Windows Embedded POSReady 2009
Driver: SUN1999Driver V8.0.0.0 (WHQL) – 20120907.zip
Version: sun1999driver v8.1.5.0 (whql) – 20150520
Update: 2015-06-09 19:00:49
Size: 4.4MB


Windows XP 32/64 bit
Windows Embedded Standard
Driver: I/O Card linux driver
Version: V2.0.4.2
Update:  2016-06-23 15:24:38
Size: 274KB
OS: Linux 2.4x/2.6x/3.x/4.x
Driver:  SUNDOS1.00.00.006 Version: V1.00.00.006 icon_download_blue
Update: 2014-08-19 10:36:25
Size: 21KB
Driver:   snx_V2.0.4.0.tar Version: V2.0.4.0 icon_download_blue
Update: 2015-06-13 15:15:54
Size: 69.5KB
OS: Linux 2.4x/2.6x/3.x
Driver:  .. (WHQL) – 20110302 Version: V7.2.0.0 (WHQL) icon_download_blue
Update: 2013-12-02 18:00:44
Size: 4.3MB
OS: Windows 2000