METHOD FOR ESTABLISHING A SUBSCRIBER CONNECTION AND A SYSTEM UTILIZING THE METHOD

A method and a system for establishing a digital subscriber connection between a central site ( 1 ) and a subscriber's transmission device ( 5 ). The system comprises an optical fiber ( 2 ) between the central site and an intermediate equipment ( 3 ) on a signal path between the central site an...

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Bibliographische Detailangaben
1. Verfasser:	LAAMANEN, HEIKKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING TELEPHONIC COMMUNICATION TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A method and a system for establishing a digital subscriber connection between a central site ( 1 ) and a subscriber's transmission device ( 5 ). The system comprises an optical fiber ( 2 ) between the central site and an intermediate equipment ( 3 ) on a signal path between the central site and the subscriber's transmission device, and a metallic pair cable ( 4 ) between the intermediate equipment and the subscriber's transmission device. Digital signal processing parts ( 12 a , 12 b , 14 a , 14 b) of a DSL-modem are distributed between the central site and the intermediate equipment. Analog signal processing parts ( 7 ) of the DSL-modem are located in the intermediate equipment. The distribution of the digital signal processing parts is selected such that the optical-fiber-carried bit rate is minimal, but on the other hand, the digital signal processing in the equipment is relatively simple.