HIRSCHMANN MM3-1FXS2/3TX1 Switching Board Module

HIRSCHMANN MM3-1FXS2/3TX1 Switching Board Module

Unique Product Description

The Hirschmann MM3-1FXS2/3TX1 (Part Number: 943 838-101) is a hot-swappable Media Module designed specifically for the MICE (Modular Industrial Communication Equipment) series switches, such as the MS20. MS30. and PowerMICE MS40 platforms.

What makes this unit unique is its hybrid port configuration combined with long-range optical transmission: it integrates 1 x 100BASE-FX Single-Mode fiber optic port (SC connection) alongside 3 x 10/100BASE-TX Fast Ethernet copper ports (RJ45) onto a single modular blade.

 It allows industrial networks to bridge long-distance single-mode fiber links (up to 32.5 km) directly into localized field devices without needing a separate standalone media converter.

Technical Parameter Overview

Product Advantages and Features

Flexible Modular Expansion: Allows network engineers to adapt port densities and media types on the fly without changing the core switch chassis.

Long-Distance Connectivity: The single-mode SC fiber port supports up to 32.5 km runs, making it ideal for connecting dispersed field sites back to a centralized control room.

Industrial Hot-Swapping: Media modules can be inserted or replaced while the main MICE switch remains powered and operational, minimizing downtime during maintenance.

Plug-and-Play Copper Ports: RJ45 copper ports feature built-in auto-negotiation and MDI/MDI-X auto-crossing, eliminating the need for crossover patch cables.

High Reliability (MTBF): Designed to MIL-HDBK-217F standards with a Mean Time Between Failures exceeding 75 years.

Application Cases

Long-Distance Substation Backbone: Connects remote power distribution cabinets or substations over multi-kilometer single-mode fiber links while supplying 3 local RJ45 ports for PLCs or HMIs.

Traffic Control & Transportation: Used in highway or rail network cabinets where high optical immunity against electromagnetic interference (EMI) is required across extended outdoor distances.

Water & Wastewater Facilities: Acts as a field node module bridging isolated pumping stations back to the main plant SCADA network over single-mode lines.

Installation and Maintenance

Backplane Insertion: Align the module rails with the empty media slot on the MICE switch base unit (MS20/MS30/MS40). Push firmly until the module seats cleanly into the backplane connector.

Securing the Module: Fasten the integrated retaining screws on the front panel to lock the module physically in place and ensure solid grounding to the chassis.

Cabling Connections:

Fiber: Remove dust caps and connect single-mode SC fiber cables to the 100BASE-FX port.

Copper: Insert standard Category 5e/6 Ethernet cables with RJ45 connectors into the 3 Fast Ethernet ports.

Maintenance: The module requires no moving parts or fan maintenance. Clean optical connectors using specialized fiber cleaning pens if signal loss is detected.

Other Models in the Same Series (MICE Media Modules)

The Hirschmann MICE MM3/MM2 series includes various media module variants tailored for different copper and fiber needs:

MM3-4TX5: 4 x 10/100BASE-TX RJ45 copper ports.

MM3-1FXM2/3TX1: 1 x 100BASE-FX Multi-Mode port (SC connector) + 3 x 10/100BASE-TX RJ45 ports.

MM3-2FXM2/2TX1: 2 x 100BASE-FX Multi-Mode ports (SC connector) + 2 x 10/100BASE-TX RJ45 ports.

MM3-2FXS2/2TX1: 2 x 100BASE-FX Single-Mode ports (SC connector) + 2 x 10/100BASE-TX RJ45 ports.

MM3-4FXM2 / MM3-4FXS2: 4 x 100BASE-FX fiber ports (Multi-Mode or Single-Mode).

MM3-1FXS2/3TX1-EEC: Extended Temperature variant (-40°C to +70°C operating range).

SEO Optimization & Indexing Guide

Note on Web Indexing: Following structured technical schema and clear metadata allows web crawlers to quickly index this industrial part number.

To ensure this module page (MM3-1FXS2/3TX1 / 943 838-101) is indexed efficiently by Google:

Title Tag & Meta Description:

Title Tag: Hirschmann MM3-1FXS2/3TX1 Media Module (943 838-101) - Specs & Data

Meta Description: Technical specifications, port layout, installation guide, and application details for Hirschmann MM3-1FXS2/3TX1 MICE switch media module.

Schema.org Structured Data: Insert Product JSON-LD schema into your page HTML:

JSON

{

"@context": "https://schema.org/",

"@type": "Product",

"name": "Hirschmann MM3-1FXS2/3TX1 Media Module",

"mpn": "943838101",

"sku": "MM3-1FXS2/3TX1",

"brand": {

"@type": "Brand",

"name": "Hirschmann"

},

"description": "Media module for Hirschmann MICE Switches, 1 x 100BASE-FX Single-Mode SC port and 3 x 10/100BASE-TX RJ45 ports."

}

URL Slug: Keep the URL clean, e.g., [https://yourdomain.com/hirschmann-mm3-1fxs2-3tx1-943838101](https://yourdomain.com/hirschmann-mm3-1fxs2-3tx1-943838101).

Google Search Console: Submit the live page URL via Google Search Console's URL Inspection Tool -> Request Indexing