The Hirschmann GMM42-TTTTTTTTTVYHHS9 Ethernet switch media module supports operations with PoE+ and it comes with 8 ports. This switch can be used in harsh environments where the temperature goes from -40 to 70 degrees Celsius. This media module comes with LED status indicators and display elements.

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Warranty: 1 year Networking-Hardware Warranty Included
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Repairs: We offer repair service for the GMM42-TTTTTTTTTVYHHS9.
Exchange: Exchange credit for your defective unit available.

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The GMM42-TTTTTTTTTVYHHS9 module is a Hirschmann rack mount Ethernet switch media module that has been designed by Hirschmann Automation and included in the Greyhound family of rack mount switches and media modules. This media module has been designed to provide Ethernet connections to demanding equipment in demanded industrial automation applications. This switch does not come shipped with a power supply module, so it will need to be connected to one that is provided by the users. The Hirschmann GMM42-TTTTTTTTTVYHHS9 Ethernet media module operates with both AC and DC voltage. The DC voltage range goes from 60 to 250 Volts DC and the AC voltage range goes from 110 to 240 Volts AC with a frequency rating of 50 to 60 Hertz. The voltage ranges both include the maximum tolerances which must not be exceeded.


The Hirschmann GMM42-TTTTTTTTTVYHHS9 rack mount Ethernet media module weights 520 grams and comes with a CD/DVD that contains the instructions on how to proceed with the installation, set up, and basic maintenance of the module. The switch that hosts the media module is connected to the power supply module that powers it and the media module through a 3-pin terminal block and it is meant to be mounted in a cabinet that is suitable for its size. The Hirschmann GMM42-TTTTTTTTTVYHHS9 Ethernet media module has been designed to withstand the extended ambient temperature ranges from -40 to 70 degrees Celsius, along with a relative humidity range of 5 to 95 percent without condensation and an air pressure range of 700 to 1060 hPa. The ambient temperature is measured at a distance of 5 centimeters from the device and it should be moderated to avoid overheating.


Technical specifications


Rack Mount Switches


Switch Media Module





Twisted-Pair (RJ45 Connector) Cables

-40 to 70 degrees Celsius

Hirschmann Standard



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