The Hirschmann MM20-M4M4T1T1SAHH is a Fast Ethernet Media Converter from the Hirschmann MICE (Modular Industrial Communication Equipment) series. These media converters are designed for industrial environments to reliably convert Ethernet signals between different media types, primarily copper (twisted pair) and fiber optic.
Here’s a breakdown of what the model number likely indicates:
- MM20: Identifies the product family as a MICE Media Module 20.
- M4: Likely indicates a specific type of fiber optic port. Based on other similar Hirschmann models, “M4” often refers to multimode fiber with ST connectors.
- M4: Another likely indication of a multimode fiber port with ST connectors. This suggests the converter has two multimode fiber ports with ST connectors.
- T1: Typically indicates a 10/100Base-TX Ethernet port with an RJ45 connector.
- T1: Another 10/100Base-TX Ethernet port with an RJ45 connector.
- SAHH: This suffix usually denotes specific characteristics of the device, such as the power supply input voltage range and potentially the operating temperature range. Without the exact datasheet for this specific model, “SAHH” often points to a 24 VDC power supply and a standard industrial operating temperature range.
In summary, the Hirschmann MM20-M4M4T1T1SAHH is a managed Fast Ethernet media converter with:
- Two multimode fiber optic ports with ST connectors.
- Two 10/100Base-TX Ethernet ports with RJ45 connectors.
- Typically powered by 24 VDC.
- Designed for industrial applications.
Key Features and Advantages:
- Media Conversion: Reliably converts Ethernet signals between copper and multimode fiber.
- Industrial Grade: Built to withstand harsh industrial environments, including wide temperature ranges, vibrations, and shocks.
- Redundancy: The presence of dual fiber and copper ports might support redundancy features for increased network reliability (depending on the specific configuration and management capabilities).
- Management Capabilities: As part of the MICE series, this media converter is likely to be managed, offering features like VLAN support, QoS (Quality of Service), and SNMP (Simple Network Management Protocol) for network configuration and monitoring.
- DIN Rail Mounting: Designed for easy installation on standard industrial DIN rails.
Application Field:
The Hirschmann MM20-M4M4T1T1SAHH is used in industrial networks to:
- Connect Ethernet devices over longer distances using fiber optic cables, which are less susceptible to electromagnetic interference (EMI).
- Bridge segments of a network using different media types.
- Provide media redundancy for critical network links.
- Extend the reach of Ethernet in noisy industrial environments.
Related Products:
- Other Hirschmann MM20 series media converters: Offering different combinations of fiber (single-mode/multimode, various connectors like SC, LC) and copper ports.
- Hirschmann industrial Ethernet switches: Managed and unmanaged switches for building robust industrial networks.
- Fiber optic cables and connectors: For establishing the fiber optic links.
Installation and Maintenance:
Installation typically involves mounting the device on a DIN rail, connecting the power supply, and connecting the Ethernet and fiber optic cables. Refer to the specific product datasheet for detailed installation instructions and wiring diagrams. Maintenance is generally minimal for industrial media converters but may include periodic checks of connections and environmental conditions.
Product Guarantee:
Hirschmann, as part of Belden, typically offers a warranty on their industrial networking products. The specific terms and duration of the warranty would be outlined in their product documentation or sales agreement.
Note: As the product is listed as discontinued by some suppliers, it’s advisable to check with current distributors or Belden/Hirschmann directly for availability or suitable replacement models. The specific details of the “SAHH” suffix would be best confirmed by the official datasheet for the MM20-M4M4T1T1SAHH.
