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Chrysalis · 22-09-2008, 16:47

average distance compared to direct is 1.4 or 140%, be aware it can be a lot more but can also be less. If you have something like a canal or rail line between you and exchange the chances of a indirect route are increased so try looking at a road map to see possible routes.

The other variable is cable quality, there is various thickness of copper used eg. 0.32mm and 0.4mm even thicker stuff like 0.75mm, as well as ali cabling. The cable used affects how much attenuation is gained per km of length. There is no way for customers to know what cable is used on their line that itself is a lottery.

If we assume line length of 1.5km and 14dB attenuation per km then you will have a 21Db line which should give you in excess of a 16mbit synch. At 2km would be 28dB and still very good probably 14-16mbit. I think your routing will very likely be under 2.5km I would be surprised if its higher then that so unless your line is ali it should be below 34dB attenuation.

22-09-2008, 16:47	#6
Chrysalis Inactive Join Date: Sep 2003 Posts: 12,047	Re: Exchange distance query average distance compared to direct is 1.4 or 140%, be aware it can be a lot more but can also be less. If you have something like a canal or rail line between you and exchange the chances of a indirect route are increased so try looking at a road map to see possible routes. The other variable is cable quality, there is various thickness of copper used eg. 0.32mm and 0.4mm even thicker stuff like 0.75mm, as well as ali cabling. The cable used affects how much attenuation is gained per km of length. There is no way for customers to know what cable is used on their line that itself is a lottery. If we assume line length of 1.5km and 14dB attenuation per km then you will have a 21Db line which should give you in excess of a 16mbit synch. At 2km would be 28dB and still very good probably 14-16mbit. I think your routing will very likely be under 2.5km I would be surprised if its higher then that so unless your line is ali it should be below 34dB attenuation.