Bosch's alarm communication system installed at Turkey's TÜDEMSAS factory

Established in 1939, TÜDEMSAS (Turkish Railway Machines Industry Inc.) repairs freight and passenger wagons and manufactures freight wagons and spare parts. Its factory in Sivas, Turkey has a total area of 287,467 square metres with an additional indoor area of 96,000 square metres. The factory employs 1,500 people, making TÜDEMSAS one of the biggest industrial groups for the international railway market in the Balkans and the Middle East.

Between January and April 2010, solutions supplier and Bosch dealer, Entegre Electronics from Istanbul, designed and installed a public address and voice evacuation system at TÜDEMSAS, based around 50 Hemi-directional Loudspeakers from Bosch. The loudspeakers were installed in three buildings and cover around 50,000 square metres.

The public address and emergency evacuation system is controlled and managed from the factory's head office and security centre. Business calls and emergency announcements can be made from both locations. The security centre uses call stations with keypads. For the head office Entegre Electronics designed PC-based call stations with a graphical user interface that enable on-screen zone selection and both pre-recorded messages and live speech in the selected areas. It's a full Audio over IP system. The three existing Praesideo systems installed in separate locations in the factory work together; both audio and contact information are distributed over the IP network. The factory's existing fibre-optic network configuration allowed optimal freedom in system design. It permitted the public address and voice evacuation equipment such as amplifiers, network controller, call stations and multi-channel interfaces to be located wherever required without having to install lots of additional cabling.

Powerful loudspeakers required