Integrated metal dust caps ensure the transmission quality of fibre-optic cabling



tML fibre-optic modules: LC ports with integrated shutters for dust and laser protection


Dortmund/Germany, 17 January 2017. As of now, tde trans data elektronik GmbH is offering tML fibre-optic modules with full dust and laser protection with the same high packing density as before: During the plugging process, integrated shutters open automatically through a special mechanism and close again after the removal of the connector. As the shutters seal the ports dust-tight, external dust caps are no longer necessary. At the same time, the shutters protect the eyes from harmful laser beams. In contrast to other products available on the market, which only offer plastic shutters, tde couplings are equipped with shutters made of metal. In conjunction with Fault Finders, the shutters let harmless light beams pass through and make ports belonging together visible. tde tML fibre-optic modules with self-closing shutters are available for LC connector types of the product lines tML-Standard, tML Xtended and tML 24.

„Cleanliness plays a central role, especially in relation to high transmission rates in fibre-optic connection arrangements“, explains André Engel, CEO of tde. „But especially while on the job, network technicians are likely to forget about the dust caps after repatching, either because they are not available at the moment or have been lost altogether. However, dust contamination of the delicate connector end-faces of the ports is often the reason for performance losses and can, under certain circumstances, lead to the complete deterioration of the port.“ 

tde is able to remedy this situation: The new tML fibre-optic modules have ports with integrated shutters which open and close automatically during the plugging process, without even touching the ferrule of the connector being plugged in. The delicate connector end-faces are thus protected from contamination of any kind and the transmission rate remains consistently high. By permanently installing the shutters into their fibre-optic modules, tde has made external dust caps redundant. At the same time, the shutters serve as a protection from laser beams: Even when utilizing long range transceivers, the human eyes are never at risk. tde has made this possible through their use of metal instead of plastic shutters, which is unique in the industry. The metal shutters offer another advantage: If maintenance staff couple light via Fault Finder, the exiting light becomes harmless to the human eye and also makes ports which belong together visible. The integrated safety shutters in no way limits the packing density.

As of now, tde has tML fibre-optic modules with integrated safety shutters for LC connector types of the product lines tML-Standard, tML Xtended and tML 24 in its portfolio. The network expert is planning to offer its other fibre-optic products with LC adapters, which include splice boxes, with the option of shutter couplings.

The tML – tde modular link system

tML is a patented modular cabling system consisting of the three main components module, trunk cable and module rack. The system components are a 100% made, pre-assembled and tested in Germany. They ensure a plug-and-play installation on site – especially in data centres but also in industrial environments – within a very short time. The core of the system is the MPO/MTP and telco connector at the back, which can connect at least six ports with 10 GbE or GbE performance all at once. Fibre optic and TP modules are available which can be used together in one module rack with a very high port density.

About tde – trans data elektronik GmbH

For 25 years the tde - trans data elektronik GmbH, an internationally successful company, has specialised in the development and production of scalable cabling systems for highest packing density. The nuclear research centre CERN relies on the know-how of the leading company in multi-fibre technics (MPO) as well. The company’s portfolio "Made in Germany" contains complete system solutions with a focus on Plug-and-play for high speed applications in the field of datacom, telecom, industry, medical and defence. tde offers both planning and installation services through its own service department and supports the "European Code of Conduct" when it comes to energy efficiency in data centres. For more information, visit

Customer contact
tde - trans data elektronik GmbH, Vertriebsbüro Dortmund,
André Engel, Prinz-Friedrich-Karl-Str. 46, 44135 Dortmund
Tel. +49 231 160480, Fax +49 231 160933, ,


Press contact

epr – elsaesser public relations, Maximilianstraße 50, 86150 Augsburg

Cornelie Elsässer, Tel: +49-(0)821-45087910,

Frauke Schütz, Tel: +49-(0)821-45087916,


JPG Bild 334.4 KB
Microsoft Word Dokument 43.4 KB