Digital switching system with shared analog line

Digital switching system with shared analog line

An auxiliary connection mechanism for allowing a Digital Switching System (DSS) to share an analog line with an analog device (via an auxiliary device port) is disclosed. The auxiliary connection mechanism includes a pair of relays for releasably connecting the auxiliary device port and the DSS to t...

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Hauptverfasser: MCINTOSH JEFFREY JAY, HANRIEDER PAUL A, MARTIN RICHARD G, RHODES STEVEN J, GOLKA KEVIN W, SUNG WILLIAM
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
SELECTING
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creator MCINTOSH JEFFREY JAY
HANRIEDER PAUL A
MARTIN RICHARD G
RHODES STEVEN J
GOLKA KEVIN W
SUNG WILLIAM
description An auxiliary connection mechanism for allowing a Digital Switching System (DSS) to share an analog line with an analog device (via an auxiliary device port) is disclosed. The auxiliary connection mechanism includes a pair of relays for releasably connecting the auxiliary device port and the DSS to the analog line. When the analog line is idle, both the analog device and the DSS are connected to the line in order to receive incoming calls on the analog line. However, once one of the devices (either the analog device or the DSS) uses the line, the other device should not access the line. A busy line detect circuit is included to detect whether a device is using the line.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
SELECTING
title Digital switching system with shared analog line
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