Optical transceiver module having adjustable signal polarity

Abstract

A system and method for selective inversion of the polarity of differential electrical data signals in connection with the operation of an optical transceiver module is disclosed. In one embodiment, an optical transceiver module is disclosed and comprises a receiver optical subassembly in operable communication with dual receive data signal streams that possess respectively differing polarities. A transmitter optical subassembly is also disclosed in operable communication with dual transmit data signal streams that possess respectively differing polarities. A first polarity switch is included and configured to selectively invert the polarities of the data signal streams of the receive data path, while a second polarity switch is included and configured to selectively invert the polarities of the data signal streams of the transmit data path. A register array is included in the module and has bits assignable by a controller that selectively enable operation of the polarity switches.

Dependencies are inferred from the claim text.