FIELD: information technologies.
SUBSTANCE: invention may be used to provide a passenger train with wireless address emergency alarm and internal communication, and also communication with remote subscribers. The device comprises body, contact block, source of supply, circuit board of supply source, mother board, peripheral radio module, loudspeaker and microphone.
EFFECT: invention provides for the possibility to transfer information on condition of technical systems of passenger train, and provision of voice communication of train team member.
2 cl
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Authors
Dates
2011-02-27—Published
2009-07-20—Filed