Core Sources of Attenuation in FTTH Deployments
Passive optical degradation stems from three primary factors: optical power splitters, insertion loss at mechanical/fusion splices, and tight radius macro-bending in drop cables.
Standard Splitter Insertion Loss Metrics
- 1:2 Splitter: ~3.5 dBm attenuation
- 1:4 Splitter: ~7.2 dBm attenuation
- 1:8 Splitter: ~10.5 dBm attenuation
- 1:16 Splitter: ~13.8 dBm attenuation
Proactive Attenuation Monitoring in fiberNox
fiberNox scans physical optical parameters continuously. If a customer's link degrades beyond -25 dBm, an automated dispatch ticket is routed to the nearest field lineman instantly.
Frequently Asked Questions (FAQ)
What is the ideal optical receive power for customer ONUs?+
Optimal range is -15 dBm to -23 dBm. When attenuation exceeds -27 dBm, packets drop and packet error rates surge.