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104-COM232-8 Series

Eight, Four, and Two-Port RS-232 Serial Communication

Features
  • 8, 4 or 2 RS-232 asynchronous serial COM ports
  • Speeds up to 230.4K with 64-byte FIFO
  • Programmable IRQ sharing simplifies system design and installation
  • Low power required: +5VDC at 80mA typical
  • Operates as a standard COM port in all operating systems

Factory Options: (call for pricing and availability)

  • 128-byte FIFO
  • 0 to 70°C and -40 to +85°C versions available
  • RoHS Available. Please contact us for ordering information
  • Designed, made, supported, and manufactured in the USA
This is an eight, four, or two-port, asynchronous, serial communication board designed for use on the PC/104 bus. It supports full RS-232 serial communications. The board may be installed in any standard PC/104 stack. Connections are made via two 40 pin IDC type right angle connectors for the boards optional breakout cable. The boards are feature-rich and allow for the connection of multiple serial devices—ideal for a variety of applications such as POS, barcode readers, modems, machine monitoring and control, military, high-density networking applications or any other application requiring the connection of RS-232 serial devices to a PC/104 compatible system.

Type 16780 UARTS are used as the asynchronous communication elements. These include 64-byte transmit/receive FIFO buffers to protect against lost data in multitasking systems while maintaining 100% compatibility with all operating system COM port drivers. ACCES offers the 104-COM232-8 series in both standard and extended temperature versions ideal for outdoor applications or harsh industrial surroundings. Ordering options include UARTs with larger FIFOs, support for custom baud rates, vertical I/O pins, and custom cabling.

A crystal oscillator located on the board permits precise baud rate capability up to 230.4K. The addresses of the individual channels and IRQ are stored in non volatile memory on the board and loaded into programmed logic when the board is initially powered.

SOFTWARE

The 104-COM232-8 series are supported by most operating systems and include a free DOS, Linux and XP -> 10, both 32 & 64 bit compatible software package. This includes sample programs and source code in "C" and Pascal for DOS, and Visual Basic, Delphi, and Visual C++ for Windows. Also included is a graphical setup program in Windows. An easy-to-use Windows terminal program simplifies verification of proper operation (also provided in a DOS version.)


Available Reference Manuals

Available Software Downloads

Available Datasheets

Drivers and Downloads

Full list of available Downloads: Software Packages, Drivers, Manuals, and other documents

Custom Software

ACCES also offers Custom Software Services for our products. Our prices are unbelievably low, often as inexpensive as free! If you need something tweaked to support your needs, or an entire enterprise application developed from scratch, it is definitely worth your time to inquire with us, first.

Further information about available ACCES Software:

Redistributing Windows Drivers
A list of ACCES drivers and the files that compose them under different versions of Windows, so you can easily redistribute ACCES cards and drivers.

Specifications


Communications Interface

  • I/O Connections: Via two 40 pin IDC type right angle connectors. There are eight pins per port plus common grounds.
  • Character Length: 5,6,7, or 8 bits
  • Parity: Even, odd, or none
  • Stop Interval: 1, 1.5, or 2 bits
  • Serial Data Rates: Up to 230.4K baud, asynchronous.
  • Common Mode Voltage Range: +12V to -7V
  • Base Address Options: Programmable
  • Interrupts: Shared IRQ is programmed and stored onboard in non-volatile memory

Environmental

  • Short Circuit Protection: All outputs are protected against continuous short circuit
  • Power Required: +5 VDC at 80 mA typical, all outputs open
  • Operating Temperature: 0 to 70°C, (-40 to +85°C Optional)
  • Storage Temperature Range: -50 to +120°C
  • Humidity: 5% to 95% RH, non-condensing
  • PC/104 bus 8-bit and 16-bit bus headers are used

CE testing & approval must be done at the system level, in the designed enclosure, and is not done on individual boards.


 
ModelPrice (USD)
104-COM232-8219.00
104-COM232-4149.00
104-COM232-2119.00

Acquisition, Control, Communication: Engineering and Systems