System for exchanging encoded messages between stations

Details System for exchanging encoded messages between stations System for exchanging encoded messages between stations

1984-03-14

1986-04-01

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 79, 370 80, H04J 316, H04J 317, H04J 302

Patent

active

045802610

ABSTRACT:
In a system for exchanging encoded messages between stations, each station comprises a control unit and a connection module connected to a signaling link and a data link, the signaling and data links being serial multiplex links synchronized by a general timebase. Each connection module sends over the signaling link, in a time slot of a frame, four status bits, one reservation bit and one standby bit and receives in its time slot a calling bit from a calling station, or sends a calling bit in the time slot of a called station. The length of the data messages is equal to an integer number of frames, this number having a predetermined maximum value beyond which a watchdog timer disables sending over the information link. Each message is sent in its entirety and without interruption.

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