| 摘要 |
In this network for transmitting information in physical/logical channels 3, 5 linking interface units for control 2, for network direction 6, and for extraction/insertion 12.1 and for extraction/observation 12.2, all these units have the same basic specific general structure including a physical network interface 15, a logical network interface 16 connected to points 1 for collection, for exploitation 9, 10 or for information enquiry 13, 14, and a module 17 for executing commands, connected to the points 1, the interface 16 and the module 17 connecting in parallel the associated point 1 to the interface 15, and the number of channels 5 of the network is proportional to the number of independent enquiry points. Application in particular to installations for control of access and for monitoring sites. <IMAGE>
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