HIRSCHMANN MM20-Z6Z6EBH Hot-swappable fast Ethernet media module



The HIRSCHMANN MM20-Z6Z6EBH (often formatted in order configurators as MM20-Z6Z6Z6Z6EBHH or MM20-Z6Z6EBH...) is an extended environmental spec, hot-swappable Fast Ethernet Media Module.

 It is engineered for Hirschmann’s modular MICE (Modular Industrial Communication Equipment) Switch family (MS20 and MS30 series).

The EBH designation indicates an Extended Environmental variant with conformal coating for harsh outdoor or chemical environments, featuring 4 Fast Ethernet (100 Mbps) SFP slots for versatile fiber and copper transceiver deployment.

Product Overview

Hirschmann MM20-Z6Z6EBH is a 4-port Fast Ethernet SFP media module built to provide resilient, customizable optical or copper connectivity within MS20/30 modular switches.

 Designed for extreme operating conditions, it combines dynamic hot-swap capability with PCB conformal coating, enabling reliable network expansion in harsh industrial, utility, and outdoor environments without bringing down active backplane communication.

Technical Table

Environmental Tolerance Conditions

Operating Temperature (Extended): $-40^circtext{C}$ to $+70^circtext{C}$ (EEC / Extended variant designation).

Storage Temperature: $-40^circtext{C}$ to $+85^circtext{C}$.

Relative Humidity: 10% to 95% (Non-condensing).

Conformal Coating (EBH designation): PCB surfaces are treated with a protective coating to guard against corrosion caused by humidity, airborne chemicals, and industrial contaminants.

Vibration & Shock Resistance: Tested to IEC 60068 standards (up to 15g shock duration at 11 ms).

Electromagnetic Immunity (EMC): Compliant with EN 61000-4-2 (ESD), EN 61000-4-4 (Burst), and EN 61000-4-5 (Surge) for heavy industrial electrical substations and plants.

Operating Instructions

Pre-Installation Inspection & ESD: Wear an anti-static ESD wrist strap prior to opening packaging or handling the module.

Backplane Insertion:

Ensure the slot on the host MS20 or MS30 basic switch module is clean and clear.

Slide the module evenly into the guide rails until the backplane connector engages firmly.

Hand-tighten top and bottom captive thumbscrews on the front plate.

SFP Installation:

Insert compatible Hirschmann Fast Ethernet SFP transceivers into the SFP slots until they latch.

Remove rubber dust caps and attach fiber optic or LC/copper cables.

Hot-Swap Operation: The module can be installed or removed while the host switch is energized. Network topology changes will automatically update via the switch management software (e.g., HiOS or Classic Software).

Fault Diagnosis

Storage Conditions

Temperature Range: $-40^circtext{C}$ to $+85^circtext{C}$ in original manufacturer packaging.

Atmospheric Protection: Keep stored in a dry, dust-free indoor location. Maintain dust covers on all unused SFP slots to prevent fiber port contamination.

Humidity: Max 95% relative humidity without liquid condensation.

Related Models in the Same Series