4-Port RS-232/422/485 UPCI to Serial Card, 15KV ESD Protection

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The uPCI-400i Universal PCI 4-Port industrial serial I/O card offer four independent RS-232/422/485 serial ports. This Industrial I/O board supports both 3.3V and 5V PCI bus, and it’s compatible with 32-bit PCI, 64-bit PCI and PCI-X bus. All serial ports are built by 16550A-compatible UARTS with 16 byte FIFO. Each port may be used in different configurations of RS232, RS422 or RS485.

The TITAN uPCI-400i board provides connectivity to RS-232/422/485 communication devices for factory automation equipment, multi-drop data collection devices, barcode readers, time clocks, scales, data entry terminals, PC to PC long distance communications and serial communication in harsh environments. The board provides industrial solution for applications requiring single node or multi-drop communications over short and long distance.

The supplied drivers for Windows operating system install the serial ports into the Windows API, so they appear as the usual Com ports software requires. A rich set of driver options is configured via the Device Manager in Windows. The drivers allow to configure the serial ports for a bitrate of up to 921,600 bps.


  • Universal PCI bus , 5V and 3.3V, 32 bit 33MHz compliant
  • 16C550 compatibility
  • 16 bytes receive FIFO buffer
  • 16 bytes transmit FIFO buffer
  • Drivers provided for Windows and Linux OS
  • Wide ambient temperature operation 0°C to 60°C (32°F to 140°F)
  • CE, FCC approval
  • Supports four high speed RS-232/422/485 serial ports with data transfer rate up to 921.6kbps
  • Provides 15KV ESD protection for all serial signals
  • includes one adapter cables converting a DB37 male connector to four DB9 male connectors.
  • RS-232 data signals: DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS,RI
  • RS-422 data signals: TxD-, TxD+, RxD+, RxD-, GND, RTS-, RTS+, CTS+, CTS-
  • RS-485 data signals: TxD-, TxD+, RxD+, RxD- (4 wire), Data-, Data+ (2 wire)


BusUniversal PCI (5V and 3.3V) 32 bit 33MHz
ChipsetTITAN BSP9216U x 1 TI TL16C550D x 4
Plug & PlaySupported
IRQ & IO AddressAssigned by system BIOS
MechanicalWith standard height bracket
Serial Port
No. of PortsFour
ConnectorsFour DB9 male connectors
RS-232 SignalsDCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI
RS-422 SignalsTxD-, TxD+, RxD+, RxD-, GND, RTS-, RTS+, CTS+, CTS-
RS-485 SignalsTxD-, TxD+, RxD+, RxD- (4 wire), Data-, Data+ (2 wire)
Max. Bitrates921.6kbps
Serial ConfigurationData bits: 5, 6, 7, 8
Parity: None, Odd, Even, Mark, Space
Stop bits: 1, 1.5, 2
UART FIFO Buffer SizeEach port with 16 bytes FIFO for transmit & receive
Protection15kV ESD protection for all serial signals
Operating Temperature0°C to 60°C
Storage Temperature-40°C to 85°C
Humidity0 to 80% RH. Noncondensing
Safety ApprovalsCE, FCC


Product Manual