Description

Product Description

The IEMMU01 manufactured by ABB is a rack-based module mounting unit designed for INFI-90 and Symphony distributed control systems. It acts as the structural and electrical foundation for system modules, providing slot-based installation, internal bus interconnection, and regulated power distribution.

This unit integrates a 12-slot backplane architecture, enabling organized installation of I/O and communication modules while maintaining consistent signal routing and grounding. Built for continuous operation in demanding industrial environments, it supports stable system performance through robust mechanical construction and reliable electrical design.

The IEMMU01 is typically deployed in control cabinets where multiple control and interface modules must be housed within a unified backplane infrastructure.

Technical Specifications

General Information

• Manufacturer: ABB

• Model: IEMMU01

• Product Type: Module Mounting Unit / Backplane Assembly

• System Compatibility: INFI-90, Bailey Network 90, Symphony

• Slot Capacity: 12 module positions

• Installation Type: Rear-mounted rack unit

Power and Electrical Characteristics

• Input Power Supply:

• 120 / 240 VAC

• 50 / 60 Hz

• Backplane Output Voltages:

• +5 VDC

• +15 VDC

• –15 VDC

• 24 VDC

• Power Distribution:

• Internal regulated distribution to all module slots

• Designed to support redundant supply configurations (system dependent)

• Bus Interface:

• Integrated INFI-90 system bus routing across backplane

Functional Design

• Module Integration:

• Supports ABB I/O, communication, and control modules

• Standard card-edge connectors for secure insertion

• Signal Routing:

• High-integrity backplane traces for control and communication signals

• Grounding System:

• Chassis grounding with shielding termination points

• Designed to minimize electromagnetic interference

• Protection:

• Relies on external/system-level power protection

• Noise-resistant layout for industrial environments

Mechanical Specifications

• Dimensions: 48.3 cm × 17.8 cm × 33.0 cm

• Weight: 4.2 kg

• Mounting Format: 19-inch rack-compatible

• Orientation: Horizontal card insertion

Environmental Conditions

• Operating Temperature: 0 to 55 °C

• Storage Temperature: –40 to 85 °C (typical)

• Relative Humidity: Up to 95% non-condensing

• Construction: Metal chassis with industrial-grade backplane PCB

Applications

• Central rack infrastructure for ABB INFI-90 systems

• Mounting platform for I/O and communication modules

• Power distribution within DCS cabinets

• Control systems in power generation and petrochemical plants

• High-reliability automation installations requiring structured module layout

FAQ

Q: What is the primary function of the IEMMU01?
A: It provides mechanical mounting, backplane connectivity, and power distribution for installed control system modules.

Q: How many modules can be installed?
A: The unit supports up to 12 modules in a single rack assembly.

Q: Does the unit include power supplies?
A: It distributes power but typically relies on external or system-integrated power supply modules.

Q: Is this unit compatible with newer ABB platforms?
A: It is designed for INFI-90 and Symphony systems; compatibility with newer platforms depends on system architecture.

Specifications

• Brand: ABB

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems