Signal protection and monitoring system

Details Signal protection and monitoring system Signal protection and monitoring system

1994-07-01

1996-11-12

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 14, 370 161, 370 582, H04J 116

Patent

active

055747183

ABSTRACT:
A redundancy switch (44) provides interfacing of network signals to spare network processors (46) in the event of a failure of a main network processor (42). A redundancy switch (44) allows for monitoring and diagnostic operations to be performed on network electrical signals without interrupting traffic flow on inbound and outbound paths. A redundancy switch (44) performs a loopback diagnostic by routing signals from transmitter portions of the spare network processors (46) to selected receiver portions. The redundancy switch (44) includes a receiver interface unit (90) and a transmitter interface unit (92) capable of routing inbound and outbound customer signals to and from the spare processors (46) for monitoring, diagnostic, and sparing purposes.

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