🚀 go-pugleaf

In article <diorio-0307951323030001@slip230.netaxis.com>,
diorio@netaxis.com (Sharon M. DiOrio) wrote:

> I'm using my USR Sportster 28.8 on a PB540C and PowerMac 8100/100 with no
> problem.  Here is the initiailization string I use.
> 
> AT&F1&A3&B1&H1&R2

According to the installation manual for my Sportser 28.8 the init string
AT&F1 should have the identical effect as AT&F1&A3&B1&H1&R2 since the
options &A3&B1&H1&R2 are all default settings for the &F1 (hardware flow
control) factory configuration. What I see missing from the init string
above is the option &D0 which overrides the normal DTR operation used in
the &F1 setting. Everything I've read about using hardware flow control on
a Mac says that DTR should be disabled or sporadic line drops can occur
(this is because the DIN 8 connector on the Mac/Modem cable ties together
the CTS and DTR signals, so that any time a CTS occurs the Mac will also
interpret this as a DTR and drop the connection - or something like that -
I might have my signal levels confused...).  To summarize: my init string
is AT&F1&D0 and I've always had solid connections.

-- 
Greg Bond == email: bond@ee.ubc.ca == Dept. of Electrical Engineering
             voice: (604) 822 0899    University of British Columbia
             fax:   (604) 822 5949    2356 Main Mall, Vancouver, BC
                                      Canada, V6T 1Z4