HIRSCHMANN MM3-4FXM2 Media Module

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    • Product Code: MM3-4FXM2
    • Availability: In Stock


    HIRSCHMANN MM3-4FXM2 Media Module

    Technical Documentation

    Part Number: 943764101

    1. Product Overview

    The HIRSCHMANN MM3-4FXM2 is a media module designed for use with MICE series switches (MS20, MS30, and MS4128). This module provides 4 x 100Base-FX ports with multimode fiber optic SC connectors, enabling reliable fiber optic communication in industrial networks.

    The MM3-4FXM2 is part of HIRSCHMANN's comprehensive range of industrial networking solutions, specifically engineered to meet the demanding requirements of industrial environments. It offers high reliability, extended temperature range, and robust mechanical design to ensure continuous operation in harsh conditions.

    HIRSCHMANN MM3-4FXM2 Front Panel

    Figure 1: HIRSCHMANN MM3-4FXM2 Front Panel

    Key Features

    • 4 x 100Base-FX ports with SC connectors
    • Support for multimode fiber optic cables
    • Extended operating temperature range (0°C to +60°C)
    • IP20 protection class
    • Hot-swappable design for easy maintenance
    • LED indicators for port status monitoring
    • High MTBF (Mean Time Between Failures) of 59.5 years
    • Robust mechanical design for industrial environments

    2. Technical Specifications

    Parameter Value
    Part Number 943764101
    Product Name MM3-4FXM2
    Type Media Module for MICE Switches
    Ports 4 x 100Base-FX, SC connectors
    Data Rate 100 Mbps
    Fiber Type Multimode (MM)
    Wavelength 1300 nm
    Maximum Distance
    • 50/125 µm: 0-5000 m
    • 62.5/125 µm: 0-4000 m
    Link Budget
    • 50/125 µm: 8 dB
    • 62.5/125 µm: 11 dB
    Power Supply Via backplane of MICE switch
    Power Consumption 6.8 W
    Operating Temperature 0°C to +60°C
    Storage/Transport Temperature -40°C to +70°C
    Relative Humidity 10-95% (non-condensing)
    Dimensions (W x H x D) 38 mm x 134 mm x 118 mm
    Weight 180 g
    Protection Class IP20
    MTBF 59.5 years (MIL-HDBK 217F: GB 25°C)
    Approvals CE, CUL 508, DNV

    3. Installation Guide

    3.1 Safety Precautions

    WARNING:

    • Always disconnect power before installing or removing modules.
    • Use proper ESD (Electrostatic Discharge) protection when handling the module.
    • Ensure the switch is properly grounded before installation.
    • Do not install the module in an explosive atmosphere or in the presence of flammable gases.
    • Ensure proper ventilation and cooling for the switch chassis.
    • Follow all local electrical codes and regulations.

    3.2 Unpacking and Inspection

    Carefully unpack the MM3-4FXM2 module and inspect it for any damage that may have occurred during shipping. The package should contain:

    • HIRSCHMANN MM3-4FXM2 media module
    • General safety instructions
    • Product label sheet (optional accessory)

    If any items are missing or damaged, contact your supplier immediately.

    3.3 Module Installation

    The MM3-4FXM2 module is designed for installation in HIRSCHMANN MICE series switches (MS20, MS30, and MS4128). Follow these steps to install the module:

    1. Ensure the switch is powered off or the power is disconnected.
    2. Remove the blank front panel from the switch chassis if present.
    3. Align the module with the guide rails in the switch chassis.
    4. Carefully slide the module into the chassis until it makes contact with the backplane connector.
    5. Secure the module in place using the screws provided (if applicable).
    6. Repeat steps 2-5 for additional modules if needed.
    7. Reconnect power to the switch.
    HIRSCHMANN MM3-4FXM2 Installation

    Figure 2: HIRSCHMANN MM3-4FXM2 Installation in MICE Switch Chassis

    3.4 Fiber Optic Cable Installation

    Follow these steps to connect fiber optic cables to the MM3-4FXM2 module:

    1. Ensure the switch is powered off.
    2. Remove the dust caps from the SC connectors on the module.
    3. Remove the dust caps from the fiber optic cables.
    4. Align the key on the fiber optic connector with the keyway on the module's SC port.
    5. Insert the connector into the port until it clicks into place.
    6. Gently pull on the connector to ensure it is securely seated.
    7. Repeat steps 2-6 for additional fiber optic connections.
    8. Reconnect power to the switch.

    NOTE:

    Always use fiber optic cables that meet the specifications for the MM3-4FXM2 module (multimode fiber, 50/125 µm or 62.5/125 µm). Ensure proper handling of fiber optic cables to prevent damage to the fibers.

    4. Configuration Instructions

    The HIRSCHMANN MM3-4FXM2 module is configured through the management interface of the MICE series switch it is installed in. The configuration options depend on the specific switch model and firmware version.

    4.1 Management Options

    The MICE series switches can be configured using the following methods:

    • Web-based management interface
    • Command Line Interface (CLI) via serial port or Telnet/SSH
    • SNMP (Simple Network Management Protocol)
    • HIRSCHMANN HiVision network management software

    4.2 Basic Configuration Steps

    To configure the MM3-4FXM2 module, follow these general steps:

    1. Access the switch management interface using one of the methods listed above.
    2. Navigate to the port configuration section.
    3. Select the ports on the MM3-4FXM2 module (typically labeled as ports 5-8 or similar, depending on the switch model).
    4. Configure the port parameters as required for your network:
      • Speed (100 Mbps full duplex for fiber ports)
      • VLAN membership
      • QoS (Quality of Service) settings
      • Link aggregation (if supported)
      • Port security settings
    5. Save the configuration changes.

    4.3 Port Configuration Examples

    Configuration Task Web Interface CLI Command
    Enable port Ports → Port Configuration → Select port → Enable interface [port] no shutdown
    Set VLAN membership VLAN → Port VLAN → Select port → Assign VLAN vlan [id] port member [port]
    Configure QoS QoS → Port Priority → Select port → Set priority interface [port] qos priority [value]
    Configure port security Security → Port Security → Select port → Configure settings interface [port] security mac-address [address]

    NOTE:

    For detailed configuration instructions specific to your switch model, refer to the switch's user manual or configuration guide. The exact menu options and CLI commands may vary depending on the switch model and firmware version.

    5. Troubleshooting

    5.1 LED Indicators

    The MM3-4FXM2 module is equipped with LED indicators that provide status information for each port. Refer to the following table to interpret the LED status:

    LED Color Status Description
    Link/Act Green On Link is established
    Link/Act Green Blinking Data is being transmitted/received
    Link/Act Off Off No link or port is disabled
    100M Green On Port is operating at 100 Mbps
    100M Off Off Port is not active or not operating at 100 Mbps

    5.2 Common Issues and Solutions

    Issue Possible Cause Solution
    No link (Link/Act LED off) - Fiber optic cable not properly connected
    - Faulty fiber optic cable
    - Incorrect fiber type
    - Port disabled in configuration
    - Mismatched link partners    		 - Check and re-seat fiber connections
    - Replace fiber optic cable
    - Verify fiber type (multimode)
    - Enable port in switch configuration
    - Verify link partner settings
    Intermittent link loss - Loose fiber connections
    - Damaged fiber cable
    - Excessive signal loss
    - Electromagnetic interference
    - Dirty fiber connectors    		 - Secure fiber connections
    - Inspect and replace damaged cable
    - Check fiber length and quality
    - Verify proper grounding and shielding
    - Clean fiber connectors with appropriate tools
    Slow network performance - Bandwidth saturation
    - Incorrect QoS settings
    - Duplex mismatch
    - Network congestion
    - Faulty module    		 - Monitor network traffic
    - Configure appropriate QoS settings
    - Verify duplex settings (full duplex recommended)
    - Implement traffic management
    - Replace module if necessary
    Module not recognized by switch - Module not properly seated
    - Backplane connector issues
    - Incompatible switch model
    - Outdated switch firmware
    - Faulty module    		 - Reinstall the module
    - Inspect backplane connector
    - Verify switch compatibility (MS20, MS30, MS4128)
    - Update switch firmware
    - Replace module if necessary

    5.3 Fiber Optic Testing

    If you suspect issues with the fiber optic link, perform the following tests:

    1. Visual inspection: Check for visible damage to the fiber cable and connectors.
    2. Power meter test: Measure the optical power at the receiver end to ensure it is within the acceptable range.
    3. Optical time-domain reflectometer (OTDR) test: Identify any faults or excessive loss points in the fiber link.
    4. Loopback test: Connect the transmit and receive ports of the same device using a loopback adapter to verify port functionality.

    NOTE:

    Fiber optic testing should be performed by qualified personnel using appropriate test equipment.

    6. Interactive Module Diagram

    The interactive diagram below shows the HIRSCHMANN MM3-4FXM2 media module. Click on the highlighted components to view detailed information about each part of the module.

    HIRSCHMANN MM3-4FXM2 Front Panel
    Port 1
    Port 2
    Port 3
    Port 4
    Link/Act LED
    100M LED

    7. Maintenance

    7.1 Regular Maintenance Tasks

    Maintenance Task Frequency Procedure
    Visual inspection Monthly Check for signs of damage, corrosion, or overheating
    Cleaning Quarterly Clean the module and fiber connectors with appropriate tools
    Connection check Semi-annually Verify all fiber connections are secure
    Firmware update As required Update switch firmware to latest version if necessary
    Performance monitoring Continuous Monitor port status and performance using management tools

    7.2 Module Replacement

    To replace the MM3-4FXM2 module, follow these steps:

    1. Disconnect power from the switch or shut down the switch.
    2. Disconnect all fiber optic cables from the module.
    3. Remove the screws securing the module to the chassis (if applicable).
    4. Carefully slide the module out of the chassis.
    5. Insert the new module into the chassis as described in the installation section.
    6. Reconnect the fiber optic cables.
    7. Reconnect power to the switch or power on the switch.
    8. Verify proper operation using the LED indicators and management interface.

    NOTE:

    The MM3-4FXM2 module is hot-swappable in some MICE series switches. Refer to your switch documentation to confirm if hot-swap is supported before attempting to replace the module without powering down the switch.

    8. Applications

    The HIRSCHMANN MM3-4FXM2 media module is suitable for a wide range of industrial applications that require reliable fiber optic communication:

    Industrial Automation

    • Factory automation networks
    • Process control systems
    • Machine vision systems
    • Robotics and motion control

    Energy Sector

    • Power generation plants
    • Substation automation
    • Distribution automation
    • Renewable energy systems

    Transportation

    • Train control systems
    • Traffic management
    • Ports and container terminals
    • Airport infrastructure

    Maritime

    • Shipboard networks
    • Offshore platforms
    • Port automation
    • Navigation systems

    Building Automation

    • HVAC systems
    • Security and access control
    • Fire safety systems
    • Lighting control

    9. Technical Support

    For technical support, please contact HIRSCHMANN or your local HIRSCHMANN representative:

    HIRSCHMANN Headquarters

    • HIRSCHMANN Automation and Control GmbH
    • Münsterstr. 255
    • 47807 Krefeld
    • Germany
    • Phone: +49 (0) 2151 81-0
    • Email: info@hirschmann.com
    • Website: www.hirschmann.com

    Warranty Information

    The HIRSCHMANN MM3-4FXM2 comes with a standard 60-month (5-year) warranty from the date of delivery. For more information on warranty terms and conditions, please refer to the HIRSCHMANN Warranty Policy or contact your local HIRSCHMANN representative.

    © 2025 HIRSCHMANN Automation and Control GmbH. All rights reserved.

    Document Number: MM3-4FXM2-TD-EN-01

    Revision: 1.0

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