9.3.4.4 Telecommunications Equipment
Telecommunications equipment shall be installed to transmit information between divisions of the ELRT, between signal equipment and central and station equipment of SCADA systems devices, for public address to passengers, and to monitor passenger movements at stations and train-sets at the rail vehicle depot. The equipment shall have an uninterrruptible power system which functions even in the event of power failure.
The telecommunications equipment at the train operation control center shall be designed to permit system expansion in the future, in the same way as signal equipment, at minimum costs for additional equipment, data and software.
The cost of the public address system on trains and cabin equipment for radio transmissions between train crew and the dispatcher at the train operation control center are included in the costs of telecommunications equipment. The cost of telecommunications equipment for telephone communication among crew members on a train are included in the cost of rail vehicle accommodations.
