Multiplex communications – Wide area network – Packet switching
Patent
1988-02-29
1989-08-22
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
379 5, H04J 116
Patent
active
048602817
ABSTRACT:
A digital radiotelephone exchange having self diagnostic individual subchannel loopback is disclosed. An individual subchannel of an outbound PCM data stream is substituted for an individual subchannel of an inbound PCM data stream. The removed individual subchannel of the inbound PCM data stream is either substituted in the outbound PCM data stream or discarded. Line signal bits may be generated and substituted for the line signal bits of the individual subchannel in the outbound PCM data stream.
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Bergendahl Bruce A.
Finley Roger W.
Lubin Barry D.
Hackbart Rolland R.
Jenski Raymond A.
Motorola Inc.
Olms Douglas W.
Scutch III Frank M.
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