Patent ID: 7440700
Filing Date: 2008-10-21
Classification: G01M

Abstract:
1. An apparatus for testing the performance of an optical transceiver comprising: a transmitter/receiver reference clock selector for selecting one of a plurality transmitter reference clocks or one of a plurality of receiver reference clocks provided by an a first transceiver and a second transceiver; a transmitter test reference clock selection switch for selecting one of a receiver data synchronous clock provided by an external device and the selected transmitter or receiver reference clock as a transmitter test reference clock; and a receiver test reference clock selection switch for selecting one of a transmitter supervisory clock provided by an external device and the selected transmitter/receiver reference clock as a receiver test reference clock; a first separator for separating the selected transmitter or receiver reference clock into an input to the transmitter test reference clock selection switch and the receiver test reference clock selection switch; a second separator for separating the receiver data synchronous clock into an input to the transmitter test reference clock selection switch and a transmitter data synchronous clock; and a third separator for separating the transmitter supervisory clock into an input to the receiver test reference clock selection switch and an external monitoring connection line of the transmitter supervisory clock.