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IC695CMM004-FK GE PACSystems RX3i Serial Communications Module

Product Model: IC695CMM004-FK
Product Brand: GE Intelligent Platforms (formerly GE Fanuc)
Product Series: PACSystems RX3i Communication Modules
Product Features:
• Four independent, isolated serial ports with flexible RS-232/RS-422/RS-485 configuration
• Supports multiple industrial communication protocols (Modbus, DNP3, CCM, Serial I/O)
• Compact single-slot design for PACSystems RX3i backplanes with hot-swap support
• Rugged industrial construction with strong electrical isolation and diagnostic indicators

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Description

Product Model: IC695CMM004-FK
Product Brand: GE Intelligent Platforms (formerly GE Fanuc)
Product Series: PACSystems RX3i Communication Modules
Product Features:
• Four independent, isolated serial ports with flexible RS-232/RS-422/RS-485 configuration
• Supports multiple industrial communication protocols (Modbus, DNP3, CCM, Serial I/O)
• Compact single-slot design for PACSystems RX3i backplanes with hot-swap support
• Rugged industrial construction with strong electrical isolation and diagnostic indicators

Technical Specifications Table

Specification Details
Model Number IC695CMM004-FK
Brand GE Intelligent Platforms (GE Fanuc)
Series PACSystems RX3i
Module Type Serial Communications Module
Number of Ports 4 fully isolated serial ports
Supported Standards RS-232, RS-422, RS-485 (software-selectable)
Connector Type RJ-45 per port
Protocol Support Modbus Master/Slave, DNP3 Master/Slave, CCM Slave, Serial I/O
Baud Rate Range 1200 to 115.2 kbps
Flow Control Hardware (RTS/CTS) optional
Isolation Ratings Port-to-backplane and port-to-port high voltage isolation
Operating Temp. 0 °C to 60 °C environmental range
Power Requirements ~0.7 A @ 3.3 VDC and ~0.15 A @ 5 VDC
LED Indicators Module status and port activity
Backplane Slots Single slot in RX3i universal backplane
IC695CRU320-EJ
IC695CMM004-FK

Product Role & System Fit

In distributed industrial control systems, communication flexibility is often just as important as logic execution speed. The IC695CMM004-FK serves as a dedicated communications bridge within the PACSystems RX3i architecture, enabling a PLC rack to talk to multiple serial devices and networks simultaneously. While modern PLC networks increasingly rely on Ethernet-based protocols, many factory floors and legacy installations still use RS-232 and RS-485 networks for sensor arrays, barcode scanners, drives, and remote I/O concentrators. This module makes those connections possible without external gateways or protocol converters.

At its core, the module expands a PACSystems RX3i rack’s I/O and communications capabilities. It occupies a universal backplane slot and interfaces directly with the PACSystems CPU over the system bus. Each of the four isolated ports can be configured independently, allowing parallel communication sessions with different devices — for example, one port might link to an HMI via RS-232, another to a group of slave devices using RS-485 multi-drop, and a third handling a Modbus network between PLCs. This independence reduces wiring complexity and consolidates what would otherwise require multiple discrete adapters or expansion racks.

The module’s support for multiple industrial protocols — including Modbus, DNP3, and CCM — enhances interoperability. That versatility matters in systems that mix equipment from different vendors or integrate legacy controllers with newer SCADA or MES layers. A PACSystems RX3i rack built around IC695CMM004-FK can therefore serve as a hub in hybrid network topologies, bridging older serial networks with modern control logic.

Scalability is another benefit. Up to six communications modules of this family can reside in one backplane, allowing a single PLC rack to oversee extensive serial connectivity without external expansion chassis. Proper configuration and slot planning are essential, but this architecture simplifies physical system design while preserving electrical isolation and predictable signal timing.