Adsl and Vdsl on the same cable

Just a late night pondering....

I've got two adsl connections coming into my property on the same multicore cable - could the same cable support both an ADSL and VDSL service or would the technologies interfere with each other?

Yes the cable will suport adsl and vdsl. Any interference/crosstalk will be minimal considering they are in the same cable from the PCP anyway.

This is really common. Businesses and offices especially have ADSL2+ running alongside VDSL2 in 5 pair, 10 pair or of course 20 pair cables all the time.

It�s very common for small/medium sized businesses to have a VDSL2 connection as their primary connection for the office, then right next to it an ADSL2+ connection as a backup. I often just see those routers stacked on top of each other or next to each other with both lines running in a 2 or 4 pair cable.

It's also common to have 2 vdsl connections which can be bonded into 1 via aaisp for example

I suspect that being in different frequency bands would also reduce the chances of any cross-talk causing problems - compared with the lines being both presently ADSL in the same frequency band; and similarly if both were VDSL.

Any idea?

Thanks.

Thanks for the info guys, hopefully things might be moving soon

There is some interference (just like there is between two ADSL signals in adjacent pairs), but it is managed.

VDSL's frequency band overlaps the ADSL one entirely.

The power of the VDSL2 signal has to be reduced where overlap exists, in order to make them about the same level in the D-side cables (and on into the home. The actual overlap, and actual power reduction, depends on how far the DSLAM/PCP is from the exchange.

Thanks.

Adds to my knowledge.

Good to know, chances are I'll be upgrading my Zen account and cancelling the John Lewis one once FTTC turns up. Hopefully the masses of parked cars wont be an issue with the survey....

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