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4-Port PCMCIA/RS-422/485 Converter Card
4-Port PCMCIA/RS-422/485 Converter Card
COMR 4422C

PCMCIA 4-Port RS-422/485 Converter Type II PC Card, 115.2 kbps Data Rate, 16-Byte FIFO Buffer, with 4 DB-9M Connectors on Included Cable

Qty   Price (with options selected)
Shipping: In Stock
 Features
System BusPCMCIA PC Card
Data Rate per Port, Max.115.2 kbps
Number of RS-422/485 Serial Ports4
 
Introduction

Four RS-422/485 Ports on One PC Card

Serial PCMCIA PC cards are a flexible, low-cost interface that allows you to gather industrial and scientific data and control remote serial devices with laptop computers that lack serial ports.

Our COMR 4422C Type II card is small and light--and provides speeds up to 115.2 kbps. It typically draws 45mA to conserve battery energy; maximum power draw is 55mA. All our COMR PCMCIA cards are PCMCIA PC Card Standard Specification 2.1 compliant.

Each COMR card provides four fully independent ports. On the COMR 4422C, each port can be configures as RS-485 by connecting a 60-ohm resistor at each end of the circuit or as RS-422 by using a 100-ohm resistor at the receiver end. Both cards feature 16550 UARTs that provide 16-byte transmit and receive FIFOs for each port. Software-definable port addresses must be set at even 32-byte (20H) numbers.

RS-422/485 ports default to full duplex operation, but can be configured for half-duplex via software (which is included FREE with each COMR card). Only point-to-point communication is supported in half-duplex configurations.

  Detailed Specifications  More Detail
Product Information
System Bus PCMCIA PC Card
Data Rate per Port, Max. 115.2 kbps
FIFO Buffer Length 16 Bytes
I/O Ports
Serial Ports UART/Controller Type 16550
Number of RS-422/485 Serial Ports 4
Detailed Specifications More Detail
 
Ordering - Includes Options Indicated Below
COMR 4422C
PCMCIA 4-Port RS-422/485 Converter Type II PC Card, 115.2 kbps Data Rate, 16-Byte FIFO Buffer, with 4 DB-9M Connectors on Included Cable
$375.00
Catalog # Shipping Price (with options) Qty  
COMR 4422C In Stock
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