erast1@unix.cis.pitt.edu (Evan R Aussenberg) (02/05/91)
Please send email, if this has been completely covered before. What's the deal with MNP5 modems and Unix? I hear conflicting reports that they won't work. With the proper handshaking, I don't see why an external MNP5 modem wouldn't work. Thanks, Evan -- Evan Ron Aussenberg erast1@unix.cis.pitt.edu IN%"erast1@pittunix"
larry@nstar.rn.com (Larry Snyder) (02/05/91)
erast1@unix.cis.pitt.edu (Evan R Aussenberg) writes: >What's the deal with MNP5 modems and Unix? I hear conflicting >reports that they won't work. With the proper handshaking, I >don't see why an external MNP5 modem wouldn't work. all of our modems here on nstar support MNP5 and for interactive use and file transfers (non UUCP transfers that is) MNP5 actually increases throughput by about 10% -- Larry Snyder, NSTAR Public Access Unix 219-289-0287 (HST/PEP/V.32/v.42bis) regional UUCP mapping coordinator {larry@nstar.rn.com, ..!uunet!nstar!larry, larry%nstar@iuvax.cs.indiana.edu}
hotte@sunrise.in-berlin.de (Horst Laumer) (02/13/91)
erast1@unix.cis.pitt.edu (Evan R Aussenberg) writes: >Please send email, if this has been completely covered before. >What's the deal with MNP5 modems and Unix? I hear conflicting >reports that they won't work. With the proper handshaking, I >don't see why an external MNP5 modem wouldn't work. >Thanks, >Evan Ron Aussenberg I'm running a 386 box and an USR DS (v42bis) with no problems. the only problem I got is, that one of my feeds runs a combination of TB and USR, the Traily coming first. They seem not to be fully compatible in v32 mode, but that's only a problem of the dialer (I have to wait long enough to get the USR active on the other side). On the other hand, enough 2400 with and without MNP5 come in, only having to wait until my modem gives up trying a v42 connection. Hope that helps you. Horst -- ============================================================================ Horst Laumer, Kantstrasse 107, D-1000 Berlin 12 ! Bang-Adress: Junk-Food INET: hotte@sunrise.in-berlin.de ! for Autorouters -- me -- UUCP: ..unido!fub!geminix!sunrise.in-berlin.de!hotte
kherron@ms.uky.edu (Kenneth Herron) (02/15/91)
erast1@unix.cis.pitt.edu (Evan R Aussenberg) writes: >What's the deal with MNP5 modems and Unix? I hear conflicting >reports that they won't work. With the proper handshaking, I >don't see why an external MNP5 modem wouldn't work. I just configured one for a BSD system the other day; it works fine. I have a Tbit T1000 for my Sysv/386 system, and though I don't use it's (outdated) MNP capabilities, I don't think I would have any trouble doing so if I wanted. I do use in PEP mode. MNP modems have the advantage that, since they have to buffer data between the phone line and the serial port anyway, you can set the modem to speak to the computer at a fixed rate, and forget all about having to make getty sync with the modem. BTW, internal PC-bus modems also work fine with 386 unix, provided you can configure the kernal to recognize the additional serial port. I've set up two internal modems this way. -- Kenneth Herron kherron@ms.uky.edu University of Kentucky (606) 257-2975 Department of Mathematics "Never trust gimmicky gadgets" -- the Doctor
drector@orion.oac.uci.edu (David Rector) (02/15/91)
In <kherron.666583988@s.ms.uky.edu> kherron@ms.uky.edu (Kenneth Herron) writes: >erast1@unix.cis.pitt.edu (Evan R Aussenberg) writes: >>What's the deal with MNP5 modems and Unix? I hear conflicting >>reports that they won't work. With the proper handshaking, I >>don't see why an external MNP5 modem wouldn't work. >I just configured one for a BSD system the other day; it works fine. >I have a Tbit T1000 for my Sysv/386 system, and though I don't use it's >(outdated) MNP capabilities, I don't think I would have any trouble >doing so if I wanted. I do use in PEP mode. >MNP modems have the advantage that, since they have to buffer data >between the phone line and the serial port anyway, you can set the >modem to speak to the computer at a fixed rate, and forget all >about having to make getty sync with the modem. >BTW, internal PC-bus modems also work fine with 386 unix, provided you >can configure the kernal to recognize the additional serial port. >I've set up two internal modems this way. >-- >Kenneth Herron kherron@ms.uky.edu >University of Kentucky (606) 257-2975 >Department of Mathematics > "Never trust gimmicky gadgets" -- the Doctor There is an additional problem. ISC Unix does not provide the "proper handshaking." To use hardware handshaking you must install the public domain FAS device drivers (see this newsgroup). I am using a 2400baud MNP5 modem with the ISC distribution drivers and 9600 baud connection to the modem (with kermit). It works fine as long as the display is fast enough--such as, with a console terminal or external VT100 terminal. With X, I must confine myself to small windows when running kermit; otherwise I loose characters. I have not tried the modem with XON/XOFF handshaking--which might cure the problem--since I use emacs extensively. -- David L. Rector drector@orion.oac.uci.edu Dept. of Math. U. C. Irvine, Irvine CA 92717