Description

This communications card interfaces to the CPU through a 33MHz 32bit PCI (Peripheral Component Interconnect, specification revision 2.3) local bus. While it is technically a PC/104-plus card, the ISA bus connector does not connect to any circuit.

This card is an eight channel RS-232 communication instrument. Based on the XR17D158, the card has eight enhanced 16550 UARTs, each with a set of modem signals (CTS, RTS, RI, DTR, DSR CD). A 460Kb/s is guaranteed for all channels with up to 3K Ohm 1000pF loads. All interrupts may be monitored at a 32-bit status register. Each UART has both a 64 byte transmit and a 64 byte receive FIFO.

The typical quiescent current draw from the user's 5V supply is less than 50mA (with P1 and P2 disconnected). If every transmitter line is loaded with 3K Ohm, current draw should still be less than 150mA.

ACCESSORIES

Available accessories include flat ribbon cables and DIN-rail mountable screw terminal boards.

SOFTWARE

This board is supported for use in most operating systems and includes a free Linux and Windows 2000/XP/2003 compatible software package. This package contains sample programs and source code in Visual Basic, Delphi and Visual C++ for Windows. Also incorporated is a graphical setup program in Windows. Third party support includes a Windows standard DLL interface usable from the most popular application programs and includes example LabView VIs. Embedded OS support includes Windows XPe.

FEATURES

High Performance Octal PCI UART

16550 Compatible Register Set

Up to 460kb/s Serial Data Rate

Global Interrupt Source Register

Data Transfer in Byte, Word, and Double-Word

64-Byte Transmit and Receive FIFOs per each of eight UARTs

Transmit and Receive FIFO Level Counters

Programmable Transmit and Receive FIFO Trigger Level

FACTORY OPTIONS

Extended operating temperature -40 to +85°C

PCI-104 (no ISA connector)