[clug] USB ADSL2+ modem?
bob at cs.anu.edu.au
Fri Dec 23 02:55:30 UTC 2016
On 23/12/16 08:31, Rodney Peters wrote:
> On 20/12/16 12:13, Bob Edwards wrote:
>> A new thread...
>> I realise that ADSL/ADSL2/ADSL2+ has higher voltage requirements
>> than can generally be met by USB/USB2/USB3, but not sure if that
>> isn't a solvable problem that might already have been solved?
>> I can't find anything on the interwebs that gives me much encouragement.
>> Ideally, I would like to power my (bare/bridge) ADSL2+ modem from
>> my laptop's power supply/battery and the obvious way to do that would
>> be to use a USB-based modem.
>> My (Linux) laptop would then do the rest and I can (trivially?) keep
>> it patched etc. and keep a closer eye on what is really going back and
>> forth on the ADSL connection...
>> Anybody got any thoughts or recommendations?
>> Bob Edwards.
> Hi Bob,
> I have used a TP Link 8817 ADSL2+ modem. This is a physically compact
> job that requires 5V @ 1A. Can't say I have powered it from USB, but
> would be feasible.
> It has alternate USB/RJ45 outlets for LAN side. The USB connection does
> work directly with Linux (cdc_ether module), when using external power
> supply. You could try a USB Y cable to deliver the power or simply rig
> up a dedicated power cable - USB A male to the small DC socket it has.
> Main limitation is the USB 1.1 interface of 12 Mb/s max. If you have
> that actual bandwidth, then half your luck.
> I have listed it under DSL Modems (none Ethernet) at:
Thanks for that tip, Rod. Pity the USB is only 1.1, otherwise I could
use it, I think...
Thanks to all the others for other good tips.
I'll keep looking at options - probably get a solution going just in
time for the NBN monopoly to disconnect my ADSL line...
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