Allen Bradley 1784-PCMK PCMCIA Communication Interface Card

Overview
The Allen-Bradley 1784-PCMK is a PCMCIA-based communication interface card designed for industrial laptops and portable engineering stations. It enables reliable Data Highway Plus (DH+) communication between a host computer and industrial automation networks. The card is commonly used for system configuration, diagnostics, and PLC programming in legacy and hybrid industrial environments.

General Information
Part Number: 1784-PCMK

Manufacturer: Allen-Bradley (Rockwell Automation)

Brand: Allen-Bradley

Country of Origin: USA

Series: 1784 Communication Interface Cards

Type: PCMCIA Communication Interface Card

Installation: PCMCIA slot (Type II)

Function: Provides DH+ network communication for portable industrial PCs and engineering tools

Application: PLC programming, diagnostics, and industrial network access

Power Specifications
Supply Source: Powered directly from PCMCIA interface

Operating Voltage: +5 V DC (PCMCIA bus supply)

Power Consumption: Very low power consumption (< 3 W typical)

Protection: Built-in electrical isolation and industrial noise immunity

Status Indicators: LED indicators for network activity and communication status

Communication & Interface
Network Protocol: Data Highway Plus (DH+)

Interface Type: PCMCIA card interface with external communication cable

Data Rate: Up to DH+ standard network speed

Functionality: PLC communication, peer-to-peer data exchange, system diagnostics

Diagnostics: Network status monitoring and communication error detection

Configuration: Software-based configuration via industrial engineering tools

Environmental
Operating Temperature: 0 to +60 °C

Storage Temperature: −40 to +85 °C

Relative Humidity: 5% to 95% non-condensing

Vibration Resistance: Designed for portable industrial and field service environments

Protection Level: Suitable for industrial laptops and enclosed systems

Dimensions & Weight
Dimensions: 80 × 15 × 50 mm

Weight: 0.1 kg

Compact Connectivity – Built for Mobile Industrial Diagnostics