Method and apparatus for optical transceiver testing

Details Method and apparatus for optical transceiver testing Method and apparatus for optical transceiver testing

1992-04-13

1994-09-06

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

324527, 359110, 455 674, H04Q 120

Patent

active

053452305

ABSTRACT:
A method and apparatus are disclosed for providing a self-test feature for an apparatus utilizing an optical communication link, such as commercial laundry appliances having a data acquisition system for storing information on appliance usage for subsequent transmission to a portable data unit. A signal having at least one known characteristic is applied to the transmitting portion of an optical transceiver, and at least a portion of the resulting transmitted optical energy is coupled to the optical detector of the receiving section of the same transceiver. The characteristics of the resulting output of the receiver elements of the transceiver corresponding to the coupled signal are compared to the corresponding characteristic of the known input signal. Correspondence of these characteristics will confirm valid operation of the transmitting elements and the receiving elements, and thus verify operation of the optical transceiver.

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