Digital Diagnostics Technology, GBIC, XFP and SFP Optics

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Digital Diagnostics

Digital Diagnostics Technology

Many optical SFPs and XFPs provide a powerful Digital Diagnostics tool for managing the optical interface. Digital Diagnostics is a Multi-Source Agreement (SFF-8472) that includes a large number of manageable parameters.

Optical Transmit and Receive Power
This feature allows the administrator to see the power being transmitted by the laser in real-time. Digital Diagnostics also allows thresholds to be set for alarms when the transmitter power is too low or high. SFPs also measure the power being received by the laser in real-time. This feature, together with alarm and warning thresholds allows the administrator to take preemptive action when a fi ber-optic line is starting to behave badly — the administrator can switch to a backup link before the actual communications fail.

Voltage & Temperature Measurement
Environment monitoring is an important part of network management. Digital Diagnostics provides real-time monitoring of voltage and temperature of each optical component, together with thresholds and alarms. Administrators can easily use these tools to watch over air conditioning and power management systems, to keep the optical devices healthy.

Vendor Code, Wavelength, Serial Number and other factory parameters
Inventory management can be a significant operations expense for a large network. SFP optical and copper interfaces all provide a database of information about the component itself, which allows administrators to easily track changes and replacements of components, and to always know which part is where, reducing operating expense when change is necessary.

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