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From: anthony@convex.csd.uwm.edu (Anthony J Stieber)
Newsgroups: comp.sys.laptops
Subject: Re: Damark 2400 Modem
Message-ID: <12298@uwm.edu>
Date: 20 May 91 16:47:59 GMT
References: <9105142341.AA28570@grape.ecs.clarkson.edu>
Sender: news@uwm.edu
Organization: University of Wisconsin - Milwaukee
Lines: 18

In article <9105142341.AA28570@grape.ecs.clarkson.edu> graff@mlpvm2.vnet.ibm.com writes:
>Be careful about selecting a pocket modem for a palmtop computer.
>I've heard that the battery-less models don't work because the power
>isn't available from the serial port.

It depends on the modem.  Older battery-less modems leached their power
from the serial port, such as the Novation Parrot 1200.  The only way I
can get mine to work with my Psion handheld is to hook up a 9v battery
to the modem.  More recent battery-less modems leach power from the
phone line.  This is harder to do as apparently the voltage on phone
lines is much higher, varies quite a bit, and doesn't have much power
behind it.
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