Inventors:
Donald R. Casady - Tulsa OK
Cecil L. Suter - Tulsa OK
Assignee:
Seiscor Technologies, Inc. - Tulsa OK
International Classification:
H04J 110
H04J 300
Abstract:
A T1 digital carrier system having a master terminal and four serially coupled remote terminals. Each remote terminal has a by-pass switch for automatically by-passing that remote terminal should a service threatening condition exist therein, thereby maintaining service to all remaining remote terminals. In addition, major and minor alarm information (indicating service requiring conditions) is transmitted by each remote terminal during signaling frames in the T1 serial bit stream.