| 摘要 |
The transmitting of alarm signals, from central stations placed in the apartments A, B, C to a centralising system 8 to 16, is done using the parts 1 of a network existing in the building and serving all the apartments. It may involve coaxial cables 1 of a communal antenna network, or multipair cables of an intercom network, finishing up at a distributor 3 situated in a common part D such as a technical sheath, from which other conductors 7 of the same type leave, ensuring the link with the centralising system 8 to 16. Application: detecting intrusion, calls for help. <IMAGE>
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