Re: [hylafax-users] Similar USR 33.6 pro

["Jay R. Ashworth" <jra@baylink.com>]

On Mon, Jul 09, 2001 at 12:03:31PM +0000, rob.leadbeater@lynx.co.uk wrote:
> This isn't really relevant to Hylafax, but it may help someone out
> there ! One thing to be aware of with external USRobotics modems is
> that they use a variety of different power supplies.
>
> If like us, you happen to have loads of USR modems, make sure that the
> PSU that you use for it is actually the correct one for the modem.
> They tend to use either 9 volt or 18 volt. If you use a 9 volt PSU on
> a modem which is actually an 18 volt model, it may look as though the
> modem is functioning correctly, ie it will respond to AT commands and
> dial out etc., however it has a tendancy to drop the line part way
> through handshaking. This has caused me no end of grief in the past.

Is that actually possible?  My experience with, at least, Couriers, is
that the lower voltage units used barrel connectors, and the higher
voltage ones (21VAA, IIRC) used the 4-pin connector that is impossible to
replace.

Perhaps the Sporty's are different; it's a matter of personal policy to
stay as far away from those as I can.  ;-)

Cheers,
-- jra
-- 
Jay R. Ashworth                                                jra@baylink.com
Member of the Technical Staff     Baylink
The Suncoast Freenet         The Things I Think
Tampa Bay, Florida        http://baylink.pitas.com             +1 727 804 5015

   OS X: Because making Unix user-friendly was easier than debugging Windows


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