Path: utzoo!utgpu!watserv1!maytag!xenitec!zswamp!root
From: root@zswamp.uucp (Geoffrey Welsh)
Newsgroups: comp.dcom.modems
Subject: MNP4 modem
Message-ID: <82.283BB3AE@zswamp.uucp>
Date: Thu, 23 May 91 01:30:23 EDT
Organization: Izot's Swamp BBS (FidoNet), Kitchener, Ontario

In a letter to All, Michael Goodwin (goodwinm@prism.CS.ORST.EDU ) wrote:

 >I have a Basic Time BT2400E modem with MNP4 connected to an 
 >Amiga 1000.  I heard
 >that this should have an ideal file transfer rate of 300 
 >cps, but I have never
 >gotten over 240 cps with Ymodem-G, or 230 cps with Zmodem.  
 >Does it need a
 >synchronous connection to get the faster rate, or am I doing 
 >something wrong.
 >I can't lock the communication rate faster than 2400 baud, 
 >because the modem
 >doesn't respond.  Any help is appreciated.  I can capture 
 >the settings, if
 >anyone knows the modem and can help, I can mail it.  

   There were some early 2400MNP modems (including, I believe, a model from 
CTS DataComm) that didn't support RS-232 speeds higher than 2400 bps; on these 
devices you will not be able to see the throughput benefits of MNP4.

   You will, however, have a noise-free consolation.
 

--  
Geoffrey Welsh - Operator, Izot's Swamp BBS (FidoNet 1:221/171)
root@zswamp.uucp or ..uunet!watmath!xenitec!zswamp!root
602-66 Mooregate Crescent, Kitchener, ON, N2M 5E6 Canada (519)741-9553
"He who claims to know everything can't possibly know much" -me