Agreed the noise LED suggests devices where the driver is failing or was never built with consideration for RF emissions

Upstream line rate (kbit/s) 480
Downstream line rate (kbit/s) 1632
Line standard G.DMT
Channel type
Interleaved
Upstream SNR (dB) 7
Downstream SNR (dB) 7.8
Upstream line attenuation (dB) 31.5
Downstream line attenuation (dB) 63.5
Upstream output power (dBmV) 12.7
Downstream output power (dBmV) 16.5
Upstream CRC 283
Downstream CRC 0
Upstream FEC 1023
Downstream FEC 0
ADSL up time 1 Day 14:02:02

Presently using the ISP provided router, which is slower but more stable than my own.

I can sync.over 2Mbs @ 6dB but that can be unstable.

Edited by Brunel (Mon 12-Oct-15 09:47:15)

These are direct to mains GU10 lamps. All " CE" marked.

They have a small switch mode pwr. supply built in the base.

When they fail, it is the pwr. supply, not the actual LED.

CE mark is just a stamp...

The driver side should not be failing, if they are then suggests a suspect batch and power supplies are often noisy even before they fail in fact it can be sometimes seen as an indicator of imminent failure

Thank you.

There are only a handful of minor errors in over a days up time, I would suggest that there is no interference affecting your line, and that replacing the cable from DP to NTE as you suggest would be a waste of time and money. DSL does have a VERY pronounced 'drop off' in sync rates when you get to the last knockings of attenuation. You quote 72db, get to around 75db [lus and it's hit and miss you'll get sync at all.

I would like to try some OSRAM branded, rather than the no name Chines imports.

Can you try your line with all the lights ON and then OFF

What are the basic comparative stats - attenuation, SNR and SYNC in both cases?


A lot of branded LEDs in Europe are the exact same as some of the branded ones. Where do you think the major brands have their manufactured?

The line attenuation, I am using the figure obtained from a 2wire router,

I know we are all "just hanging in there"

I am using the figure obtained from a 2wire router,

Which will hang in there better than most.

The OP has already posted some stats, I reckon it's got nowt to do with REIN and everything to do with line length.