PCM-COM4A - PC/104 Four Channel Serial I/O Module

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Single Board Computers, PC/104
( PC104 ), PC/104-Plus,
& STD Bus Products

Friday, March 12, 2010

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PCM-COM4A
PC/104 Four Channel Serial PC/104 I/O Module

SPECIFICATIONS

COM Channels

One 4-channel UARTs (16C554)

FIFO Buffer

16-byte transmit and receive FIFO

Serial Port

RS-232, RS-232/422/485 port types available for channels
(optional RS-232/422/485)

Modem Interface Control

Standard Modem Interface supported

Data Transmit Rate

Up to 1.5 Mbps

Power

+5V required, 80 mA typical

Industrial Operating Temperature Range

-40°C to 85°C

Form Factor

PC/104-compliant
3.60" x 3.80" (90 mm x 96 mm)

Datasheet | Manual | Software

Additional Specifications

On-board Status Register Support
Software Programmable Baud Rate Generator
Jumper Selectable Address and Interrupt Support

OVERVIEW

The PCM-COM4A is a 4 channel serial INS8250 compatible PC/104 module based on the 16C554. It is ideally suited for applications running DOS programs or languages that require exact register compatible hardware for program execution on software such as Greenleaf Comm Library, CROSSTALK, etc. Each channel supports RS-232 with optional RS-485 and RS-422 electrical levels to interface to a wide variety of serial communications devices such as modems, data collection equipment, and distributed I/O terminals. The PCM-COM4A will operate over the full industrial temperature range of -40°C to 85°C.

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ORDERING INFORMATION

Product Model
Part Number	Description
PCM-COM4A-8-2	4 channel RS-232 Serial PC/104 module with 8-bit interface
PCM-COM4A-16-2	4 channel RS-232 Serial PC/104 module with 16-bit interface
PCM-COM4A-8-4	4 channel RS-232/422/485 Serial PC/104 module with 8-bit interface
PCM-COM4A-16-4	4 channel RS-232/422/485 Serial PC/104 module with 16-bit interface

Cables (valid for all Product Models unless otherwise stated)
Part Number	Description
CBL-173-1	20-pin ribbon to two 9-pin male D connector adapter

Miscellaneous
Part Number	Description
CK-75176-2	RS/422/485 chip kit for 1 channel

DOWNLOADS

PDF Datasheet
Printable datasheet in PDF format	Datasheet

Manual
Electronic product manual in PDF format	Manual

Software Drivers & Examples
Examples
(Reference)
Windows NT/2000/XP Registry changes for using shared interrupts with PCM-COM4A and PCM-COM8	pcom8ex.pdf
Simple C Routine using receive interrupt	8250inta.zip
Application Note: Using Serial I/O with Shared Interrupt under Linux 2.6 kernel	UsingMultiportSerialCardsLinux_2_6_x.pdf