Multiplex communications – Wide area network – Packet switching
Patent
1994-05-09
1995-07-04
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 8, 375238, H03K 708
Patent
active
054307074
ABSTRACT:
At least one connection for the communication exchange and one connection for the communication of frame clock signals is provided between centralized equipment, for example a switching matrix network, and decentralized equipment, for example line trunk groups. The frame clock signals indicate the beginning of a transmission frame utilized for the channel-oriented communication exchange. The operating condition information, for example equipment is "active" or "inactive" are communicated by pulse-duration or pulse-pause modulated or by n-coded pulse duration or pulse-pause-modulated frame clock signals.
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Geissler Friedrich
Heitmann Juergen
Strohmeier Peter
Zwack Eduard
Olms Douglas W.
Siemens Aktiengesellschaft
Ton Dang
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