Tetra | 2011-05-05

Teltronic Supplies TETRA Network for Zaragoza Train

Source: The Critical Communications Review | Gert Jan Wolf editor

The network is used mainly for transmitting data from the operations aid system between the trams and the operations and

Teltronic supplied and put into operation a new TETRA radio system that underlies communications for the first line of the Zaragoza city tramway in Zaragoza, Spain, where Teltronic is headquartered.

The TETRA system was supplied by the Zaragoza Tramway Construction consortium and includes a fully redundant controller, with a session initiation protocol (SIP) connection to two VoIP private automatic branch exchanges (PABXs), four TETRA base stations, a transport network made up of a ring configuration of 15 and 23 GHz links, and onboard tram radio equipment, including an operator console with user interface as well as personal radio units.

The network is used mainly for transmitting data from the operations aid system between the trams and the operations and control center, including periodic location service, traffic parameters, open and predefined text messages, as well as call requests (normal, urgent and emergency) and activating the public address (PA) system.

Source: www.radioresourcemag.com