Re: Impact of hardware with bad SNR & Attenuation

Alex Crosby wrote:
> Even if the line doesn't have low SNR or high attenuation, it can
> still be faulty so you can't always blame the modem. At PlusNet we
> find around 25% of faults to be caused by Customer Premesis Equipment
> (CPE), so modems, wiring, filters, or sometimes even dodgy washing
> machines or flatbed scanners generating radio frequency interference.

You forgot the infamous Xmas tree lights/rope lights, I've also known
electrical relays to cause dropouts, one case in particular all the ADSL
circuits in the building dropped when the relay controlling the carpark
lighting switched over. In the end they had to live without the lights
as we couldn't pin it down to a voltage spike or RF spike causing the
problems & the end user wasn't incline to investigate the car park
wiring & the customer was more worried about the broad band circuits
than having some halogen spot lamps on ....


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