PBX telephone system I/O interface
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United States of America Patent
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-
Jun 16, 1987
Issued Date -
N/A
app pub date -
Oct 31, 1986
filing date -
Oct 5, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus is provided for converting serial bit digital signals of selected line rate from a plurality of sources into a single serial bit signal for time division multiplexing (TDM) in periodic frames by a central receiver, in a system in which each source is responsive to command signals for transmitting signal information to the receiver.
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