Ascend Archive
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RE: (ASCEND) FCC restriction to 52000 bps

On 05 November 1997 09:16, Paul Huish [SMTP:Paul.Huish@onyx.net] wrote:
> > NOTE that this is at a site *outside* of the FCC restrictions that may
> cause
> > the MAX to limit the rate below 52000 bps....since K.R is in Singapore.
>
> We are in the UK and also are outside the FFC restrictions. How do we
> remove the 52,000 bps limit on our MAX as we do not have to comply either
> ??

This involves knowing about "high" and "low" power modes and the undocumented 
registers :)

But seriously - we have been doing some testing, and "our man at Rockwell" 
has been keeping me up to date with developments. On the server side there is 
an undocumented register - which I will not divulge on a public mailing list 
as it does affect international regulatory things like the FCC regulations - 
that allow you to force high power modem connections. This has however 
subsequently then broken v.34 in early testing - I think that has been 
solved. (UK k56flex ISPs etc should contact the Ascend office to get on a low 
volume mailing list re UK specific issues - bona fide ISPs and modem makers 
only please)

What should happen, and people with a better understanding should correct me 
here, is the the client modem (in later code - 1.0+ ?) should attempt to 
negotiate high power mode during the call startup IFF the client modem has a 
country code allowing it to do so. I found some information at the Intertex 
site regarding another (different) undocumented registers that allows you to 
ask the client side to try high power mode... let me get the URL... it's a 
README file in a code release - here is the extract:

"Disabling the K56 connect speed learning mechanism by S240=15 (low power 
mode) and 243=15 (high power mode) now works."

Try http://www.intertex.se/download/56s131b.zip - Please respect Copyrights.

Anyway - real works calls.

Peter
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