Thursday, October 21, 2021

In an HFC deployment, is bandwidth shared at the optical node level or the trunk cable level?

Let me clarify what I mean. In a typical HFC deployment, you have an optical node connected to the CMTS at the regional hub with fiber. Then at the optical node you have 4-6 trunk coax cables. So when customers share a certain DOCSIS deployment, say DOCSIS 3.0 32x4, is that at the trunk cable level? In other words, you have 32x4 channels going into each of the 4-6 trunk cables, and then at the node they are all aggregated into a single optical analog signal and sent to the regional hub's CMTS via a single fiber cable (or multiple?). Is this correct?

Sorry, it's a very specific question, hope someone can chime in.



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