Digital concentrator for use with a digital telephone office

Details Digital concentrator for use with a digital telephone office Digital concentrator for use with a digital telephone office

H - Electricity

04

Q

344/25, 344/29,

H04Q 3/04 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1159540

TITLE DIGITAL CONCENTRATOR FOR USE WITH A DIGITAL TELEPHONE OFFICE ABSTRACT OF THE DISCLOSURE Signals from line circuits requesting service are transferred to a T1 channel via a Pulse Amplitude Modulated (PAM) bus. The number of line circuits which can be served by a T1 line is not limited by the capacity of the T1 line since the probability of all line circuits requesting service at the same time is extremely low. A processing unit detects requests for service and assigns them a slot in a memory which defines the scanning sequence for in- sertion of line circuit signal in the T1 channel.

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