User's Manual of GS-5220 LCD Series
Intelligent SFP/SFP+ Diagnosis Mechanism
The GS-5220 Series with LCD Touch Screen supports SFP-DDM (Digital Diagnostic Monitor) function that greatly
helps network administrator to easily monitor real-time parameters of the SFP and SFP+ transceivers, such as
optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.
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