Multiplex communications – Wide area network – Packet switching
Patent
1993-10-07
1995-04-18
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
340827, 371 82, H04L 122, H04J 116, H04J 314
Patent
active
054084628
ABSTRACT:
A protection switching system is disclosed which includes a plurality of telecommunications modules for processing and/or switching telecommunications signals. A first module provides signals to one pair of modules, which are in turn connected to another pair of modules. Each pair of modules includes a working and a standby module. The standby module controls the switching of all the modules in the system which require switching in the event that the standby module is activated. A controller monitor circuit monitors the faults present on the working modules and, if a fault is detected, signals the corresponding standby module, which in turn provides the protection switching.
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Olms Douglas W.
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