Tollgrade Communications, Inc.

John M Benedict

Larry Mortimer

Bradford R Holmes

An electronic relay matrix ( ) is connectable between a plurality of customer telephone lines and a plurality of testers ( ) The electronic relay matrix ( ) includes a line matrix ( ) having a plurality of relay assemblies ( ) Each relay assembly ( ) in a relaxed state connects together the line-side ( ) and the drop-side ( ) of one of the customer telephone lines. Each relay assembly ( ) is adjustable to enable one of the plurality of testers ( ) to be connected to the drop-side ( ) and/or the line-side ( ) of a desired customer telephone line.

Telephony testing system

An electronic relay matrix ( ) is connectable between a plurality of customer telephone lines and a plurality of testers ( ). The electronic relay matrix ( ) includes a line matrix ( ) having a plurality of relay assemblies ( ). Each relay assembly ( ) in a relaxed state connects together the line-side ( ) and the drop-side ( ) of one of the customer telephone lines. Each relay assembly ( ) is adjustable to enable one of the plurality of testers ( ) to be connected to the drop-side ( ) and/or the line-side ( ) of a desired customer telephone line.

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Cheswick, PA, United States of America

John M Benedict