Cable Forum - View Single Post - General Does VM suffer from subsidence issues?

vm_tech · 30-04-2020, 07:52

In my 12 years in the industry, working on a predominantly underground network (eg distribution tabs underground not just cables) I’ve never heard of a network subsiding and taking down wall boxes cabinets etc. There are cases where ducts etc have collapsed for various reasons, but not just due to being underground. The telephone network runs on 48v DC, and the HFC network is 60v AC, but the AC the will not be passing through customer drop cables, only down trunk coax to power amplifiers. The FTTP network is completely passive after the hub cabinet in the street

30-04-2020, 07:52	#2
vm_tech cf.addict Join Date: May 2010 Posts: 336	Re: Does VM suffer from subsidence issues? In my 12 years in the industry, working on a predominantly underground network (eg distribution tabs underground not just cables) I’ve never heard of a network subsiding and taking down wall boxes cabinets etc. There are cases where ducts etc have collapsed for various reasons, but not just due to being underground. The telephone network runs on 48v DC, and the HFC network is 60v AC, but the AC the will not be passing through customer drop cables, only down trunk coax to power amplifiers. The FTTP network is completely passive after the hub cabinet in the street