Optical Power Class Classifications
- Class B+: Transmits +1.5 to +5 dBm. Suitable for shallow splits in compact urban blocks.
- Class C+: Transmits +3 to +7 dBm. The industry standard workhorse for 1:64 FTTH deployments.
- Class C++: Transmits +5 to +8.5 dBm. Essential for deep rural 1:128 splits across 20km loops.
When to Invest in Class C++ Transceivers
When operating dense cascading architectures across rural highways, standard C+ optics drop below receiver sensitivity thresholds. Upgrading to C++ injects 2–3 dB of optical headroom.
Digital Optical Monitoring (DOM) in fiberNox
fiberNox extracts SFP operational temperature, bias current, and transmit power in real time, alerting you before thermal failure burns out the optical diode.
Frequently Asked Questions (FAQ)
Do Class C++ modules run hotter than standard modules?+
Yes, because Class C++ transmits up to +7 dBm, adequate rack ventilation is critical to maintain transceiver longevity.