ISDN remote switching unit for accommodating analog and digital

Details ISDN remote switching unit for accommodating analog and digital ISDN remote switching unit for accommodating analog and digital

1988-07-21

1990-05-01

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

3701101, H04J 312

Patent

active

049224840

ABSTRACT:
An ISDN remote switching unit for accommodating analogue telephone subscriber lines and ISDN digital subscriber lines comprises at least one signal converter for each of the conventional analogue subscriber so that a line signal, an address signal and tone signal of each conventional analogue subscriber are converted into a signaling system of the ISDN digital subscribers line, and a traffic concentrator connected to the signal converter and disposed remote from a host exchange station, whereby the signaling system between the remote station and the host station is unified for both the analogue telephone subscriber and the ISDN digital subscriber.

REFERENCES:
patent: H586 (1989-02-01), Kun
patent: 4761779 (1988-08-01), Nara et al.
M. Yamaguchi, T. Shinozuka, T. Matsumoto, and H. Hisamatsu "ISDN User Access System at the Basic and Primary Rate Interface" pp. 50-67 of NEC Research & Development, Special Issue on "ISDN" 1987.

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