RE: CHGLINBSC LINESPEED(????)

Brian:
I have been following this thread, but now have a question.  You are dialing
4800 to several other modems and now you wish to use the same modem to
connect at 9.6.  Connecting via 4800 is a pretty old standard, What type of
modem are you using.  I suspect you are using a half duplex modem that
support the bell 208 a/b standard.  I also suspect that the new modem you
wish to talk to supports a v.32 compliant standard.  What I suspect here is
that the modem you have, and are currently using for BSC @ 4800 is not going
to work for 9600, no matter what you do.
cjg


Carl J. Galgano
EDI Consulting Services, Inc.
550 Kennesaw Avenue, Suite 800
Marietta, GA  30060
(770) 422-2995 - voice
(419) 730-8212 - fax
mailto:cgalgano@ediconsulting.com
http://www.ediconsulting.com
AS400 EDI, Networking, E-Commerce and Communications Consulting and
Implementation
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Premium Ice Cream Brands shipped Overnight

"You ain't gonna learn what you don't want to know" - rw

-----Original Message-----
From: midrange-l-admin@midrange.com
[mailto:midrange-l-admin@midrange.com]On Behalf Of Brian Ellis
Sent: Monday, August 27, 2001 5:44 PM
To: midrange-l@midrange.com
Subject: Re: CHGLINBSC LINESPEED(????)


My dilemma is that our physical modem is set at 4800 bps and set not to
change.  All other systems we dial out to are to specific numbers that
have modems on the other end set to 4800 bps and set not to change their
communication rates.

Now all of a sudden I have a requirement to dial out to another system
at 9600.  Their modem is setup not to negotiate a rate (it will only
connect at 9600).

I was hoping to be able to change the line description to 4800 or 9600
bps which would send the control codes to my modem and reset it's
connection speed respectively.

No such luck huh?

Thanks for your help.
Brian Ellis

Pat Barber wrote:
>
> Generally speaking, the software will have no effect on line speed. The
> two factors are what modem you have and the modem that answers the call.
>
> When the "handshake" procedure runs, the called modem decides if it can
> run at the requested speed, and if so, it will attempt to do so.
>
> Sooooo... what are you calling and what is answering determines line
> speed. Static and crummy lines will also cause the modem speed to
> degrade, but again, both modems have to agree to "step down" in speed.
>
> How do you know what speed you are transmitting at ???
>
> Do you have the switch setting correct for 14.4bps operations ????
>
> Can the called modem run at 14.4 ?? and is he setup for 14.4 ????
>
> Brian Ellis wrote:
> >
> > We have a modem which has the capability to transmit at 14.4 bps rates.
> > However, all of our current incoming and outgoing communications through
> > these modems are being done at 4800 bps.
> >
> > Does changing the line speed (CHGLINBSC) for a binary synchronous line
> > attached to a controller/device for synchronous modem communications
> > change the connection speed the modem will communicate at?
> >
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