The 5311 also suppprts ADSL2/2+ though no mention of ADSL1 support-
https://www.metanoia-comm.com/admin/pro ... 19&upid=73
Here in New Zealand, most VDSL (strictly speaking it's VDSL2) connections are deployed from fibre-fed cabinets. But ours is a very small rural township (around 70 houses) so is fed from an ISAM mounted in the old exchange building.
Our cable run from exchange to demarcation on the side of our place is around 370m, so at this distance we get a 17A profile. Longer cable runs typically get an 8B profile - to around 1km - after which ADSL2+ becomes the option.
The 5311 SFP gets warm during operation and there is no line stats available via any method I am aware of. Switching from an Cisco 887VA router, I noticed the speed has decreased but so has the latency. I have lost a few Mbps and gained 3ms improvement. My ISP (InspireNet) is in the nearest city which is about 80km away. Latency time to them is upper-5 to 6ms ICMP RTT.
Chorus (Our network provider) is presently doing a large scale deployment of G.vector and our ISAM line cards were upgraded a few days ago to support this. I expect they will turn it on within the next couple of weeks and I will report the results back to the forum.
My business has a reseller account with the distributor of the 5311 so would be able to supply it to anyone who is having issues obtaining this item.