US PATENT SUBCLASS 370 / 250
.~ Of a switching system

Current as of: June, 1999
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370 /   HD   MULTIPLEX COMMUNICATIONS

241  DF  DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) {6}
250.~ Of a switching system {1}
251  DF  .~.~> Having dedicated test line or channel

DEFINITION

Classification: 370/250

Of a switching system:

(under subclass 241) Subject matter including an evaluation of a multiplex switching system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

217+, for bypassing a faulty switch.

244, for fault detection of a switching system.

360+, for controlling the switching of signals through a circuit switch.