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Digital Diagnostic Monitoring Interface for SFP and SFP+ Optical Transceivers

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Digital Diagnostic Monitoring Interface for SFP and SFP+ Optical Transceivers

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This document defines an enhanced Digital Diagnostic Monitoring Interface (DDMI) available in Finisar SFP and SFP+ optical transceivers. (Note: the DDMI also applies to legacy GBIC optical transceivers.) The interface allows real time access to device operating parameters, and it includes a system of alarm and warning flags which alerts the host system when particular operating parameters are outside of a factory set normal operating range.

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