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Diamond Point International

Connect Tech Xtreme/104-Plus - PC/104-Plus Four/Eight Port Serial Interface Card

Adds Four or Eight RS232, RS422 or RS485 Interfaces to PC/104-Plus Bus


High performance and versatility are trademarks of the Xtreme/104 PC/104 serial card family. Now the Xtreme/104-Plus offers more choice for your embedded applications requiring a small footprint, but fast data transfer rates. The Xtreme/104-Plus is available with 4 or 8 high speed asynchronous RS-232/422/485 ports, 8 selectable RS-232/422/485/TTL ports, or choose 2 or 4 dedicated RS-423 ports.

High performance UARTs provide each port with large data buffering capabilities, and each port on the switchable models can be configured for electrical interface, baud rate, parity, data and stop bits independently. The Xtreme/104-Plus is the perfect combination of flexibility, high performance and cost-effectiveness.

Features and Benefits

  • Flexibility: 2, 4 or 8 asynchronous serial ports. 2 and 4 ports available in dedicated RS-423, 4/8 ports available in switchable RS-232/422/485 and now, 8 ports in switchable RS-232/422/485/TTL.
  • Speed: Data transfer speeds range from 50 bps to 1.8432 Mbps.
  • Performance: Each port is controlled by a high performance UART, providing 64 bytes of transmit and receive FIFO buffers.
  • Adaptability: Supports three RS-485 modes: Full Duplex, Half Duplex and Multi-drop. (TTL models supports Full Duplex only.)
  • Ruggedness: Operates within a temperature range of -40 degrees Celsius to 85 degrees Celsius (-40°F to 185°F).



Interface4 port models: 4 ports switchable RS-232/422/485
8 port models: 8 ports switchable RS-232/422/485 or RS-232/422/485/TTL
I/O Addresses: Assigned by Plug and Play resources
UART: 16C654 quad UARTs with 64 byte TxD/RxD FIFO buffers
Data RatesRS-232 and TTL: 50 bps to 921.6 Kbps
RS-422/485: 50 bps to 1.8432 Mbps
RS-423: 50 bps to 115.2 Kbps
(custom baud rates also available)
Address/IRQAssigned by Plug and Play resources
OtherControl Signals:
• RS-232/TTL: TxD, RxD, RTS, CTS, RI, DTR, DSR, DCD and Signal Ground, (SG), +5V*
• RS-422/485: TxD+/-, RxD+/-, RTS+/-, CTS+/- and Signal Return (SR)
*+5V applies to TTL models only

UART: Quad or octal Exar PCI UARTs provide 64 byte transmit and receive FIFO buffers for each port
Connector(s)1 or 2 40-position (2x20) .025" square pin header on .1" center
Headers mate with standard ribbon cable (IDC) connectors


ExpansionStandard 16 bit PC/104 interface (passthough), 8-bit and 16-bit bus stack through headers are installed
Standard 32 bit PC/104-Plus interface
PCI bus VIO: Can be 3.3V or 5V
Electrical+5VDC ±10%
500mA max
MechanicalWidth: 96 mm x 90 mm, 3.55" x 3.775" (standard PC/104)
Conformal CoatingOn request
SoftwareWindows NT4, 2000, Windows XP, Windows Vista, Windows 7, Windows 7
Windows Server 2003, 2008
Windows XP Embedded
Windows CE 5.0
Linux 2.4, 2.6
QNX 4, 6
Ardence RTX for Windows
SCO Unix/Openserver
Solaris 10 (32-bit)
TemperatureTemperature range (operation): -40°C to +85°C
Temperature range (storage): -40°C to +85°C
Humidity95% non-condensing

Ordering Details

BoardXPG002 Xtreme-4/104-Plus, 4 ports RS-232/422/485 - RoHS
XPG002-01 Xtreme-4/104-Plus, 4 ports RS-232/422/485, DB-9 cables, RoHS compliant

XPG003 Xtreme-8/104-Plus, 8 ports RS-232/422/485, RoHS
XPG003-01 Xtreme-8/104-Plus, 8 ports RS-232/422/485, DB-9 cables-RoHS compliant
Order Online Connect Tech Xtreme/104-Plus - Order Online