HIRSCHMANN MM20-M2T1T1T1TAHH Media Module

HIRSCHMANN MM20-M2T1T1T1TAHH Media Module

The HIRSCHMANN MM20-M2T1T1T1TAHH is a high-reliability, hybrid 4-port Fast Ethernet expansion module engineered for Hirschmann’s MICE (Modular Industrial Communication Equipment) switch series, including the MS20 and MS30 modular basic units.

Featuring 1 optical multimode SC fiber port and 3 copper RJ45 ports, alongside an extended operating temperature rating, this module bridges localized IP field devices with long-distance fiber networks in demanding industrial environments.

Product Introduction / Overview

The MM20-M2T1T1T1TAHH plugs directly into the expansion slots of MS20 or MS30 basic switch chassis. Its hybrid port layout allows control engineers to connect up to three local field devices (PLCs, HMIs, or I/O blocks) via standard copper Ethernet cables, while utilizing a single noise-immune multimode optical uplink to connect back to a central control cabinet.

Module Nomenclature Decoding:

[MM20] : Media Module series for Fast Ethernet MICE switches

[M2] : Port 1 -> Multimode 100BASE-FX SC Fiber Connector

[T1] : Port 2 -> 10/100BASE-TX RJ45 Copper Port

[T1] : Port 3 -> 10/100BASE-TX RJ45 Copper Port

[T1] : Port 4 -> 10/100BASE-TX RJ45 Copper Port

[T] : Extended Operating Temperature Range (-40°C to +70°C)

[A] : Standard Industrial Approvals (cUL508. CE, FCC)

[HH] : Dual Hirschmann Standard Release / Firmware Compliance

Technical Table

Environmental Tolerance Conditions

Operating Temperature Range: $-40^circtext{C}$ to $+70^circtext{C}$ ($-40^circtext{F}$ to $158^circtext{F}$)

Relative Humidity: 10% to 95% (non-condensing)

Vibration & Shock Resistance: IEC 60068-2-6 (Vibration) and IEC 60068-2-27 (Shock) compliant

Industrial Safety Standards: cUL508. cUL1604. CE Mark, FCC Part 15 Class A

Operating Instructions

Hot-Swapping Routine: The module can be inserted or removed while the host MS20/MS30 switch is powered on. Disconnect all network cables prior to loosening the captive screws.

Optical Dust Protection: Keep the protective rubber cap inserted into the SC fiber port whenever no fiber cable is connected to prevent optical lens contamination.

Copper Cable Connection: RJ45 ports automatically adjust line speed (10/100 Mbps) and support automatic crossover (Auto-MDI/MDI-X).

Fault Diagnosis

Related Models of the Same Series

Storage Conditions

Storage Temperature Range: $-40^circtext{C}$ to $+85^circtext{C}$ ($-40^circtext{F}$ to $185^circtext{F}$)

Storage Humidity: 10% to 95% non-condensing relative humidity

Packaging & Handling: Store in original anti-static packaging in a dry, dust-free environment until deployment.