TBBS 2.1 - Using Practical Peripherals 2400 and 2400 MNP

Contact:   eSoft, Inc. (Makers of TBBS)
           15200 E. Girard Ave., Suite 3000
           Aurora, CO  80014
           (303) 699-6565      Voice
           (303) 699-6872      Fax
           (303) 699-8222      BBS
           support@esoft.com   E-Mail

USING PRACTICAL PERIPHERALS 2400 AND 2400 MNP
---------------------------------------------

THIS DOCUMENT APPLIES ONLY TO TBBS VERSION 2.1

This document describes the set-up procedure for the Practical
Peripherals 2400 and 2400 MNP external modems for use with TBBS.  This
information is based on testing by eSoft, Incorporated Technical Sup-
port, and is believed to be accurate, however, we cannot guarantee that
using it will yield good results in all cases.  All settings apply to
BOTH modem models unless otherwise indicated.

                    CEDIT Port/Modem Options Settings

In CEDIT use the following settings:

FOR 2400:                          FOR 2400 MNP:
------------------------------     ------------------------------
Modem Type = 2                     Modem Type = 7
Modem Init =                       Modem Init = 
ATE0Q0X1V0M0 S0=1 S2=255 S7=20     ATE0Q0X1V0M0 S0=1 S2=255 S7=20

I/F = Automatic                    I/F = LOCK 9600
Issue ATZ Before INIT = Y          RTS/CTS = Y
The other 4 settings = N           Issue ATZ Before INIT = Y
                                   The other 3 settings = N

                        MODEMSET Pre-Conditioning

Use the MODEMSET program to "pre-condition" the modem as follows:

FOR 2400:                          FOR 2400 MNP:
------------------------------     ------------------------------
AT &F                              AT &F
AT B1 &C1 &D2 &Y0                  AT B1 &C1 &D2 &Y0 \A1 \Q3
AT &W0                             AT \J0 \C2 \G0 \N3 \V1 %C1
                                   AT &W0


NOTE:  THIS STEP IS ESSENTIAL!  The modem will NOT operate properly with
TBBS if you do not pre-condition it as indicated!

                                  Notes

1.   The 2400 MNP model has its baud rate "locked" between TBBS and the
     modem at 9600 baud, regardless of the user's connect rate.  If a
     user is calling with 2400 (non-MNP), 1200 (MNP or non-MNP), or 300
     baud modems, the user will experience "elasticity."  In other
     words, TBBS hot keys will be slow to respond, since TBBS is usually
     done sending an entire block of text to the modem before the user
     can respond (even though the user has not yet received the entire
     block of text).
2.   Our testing indicates that these settings produce reliable opera-
     tion in all modes at all supported baud rates with TBBS 2.1S,
     2.1M[16] or 2.1M[32].

3.   We have not determined the long-range reliability of these modems
     under the 100% duty cycle workload that the TBBS environment
     demands.  Modem failures due to overheating or simply "over-
     working" the modem are sometimes a possibility with inexpensive
     mass-market modems.

4.   The 2400 MNP has been set to a low MNP block size setting in the
     above configuration (set by the \A1 parameter).  Our testing has
     shown that default setting of \A3 does not produce reliable connec-
     tions with all MNP modems.  This may slightly impact the efficiency
     of MNP (reliable) connections, but we do NOT recommend raising the
     block size (with \A2 or \A3).  

- END -
TBBS0027
Rev. ??/??

Copyright (C) 1994 eSoft, Inc., All Rights Reserved.  Permission granted
to distribute this file in its entirety, without modification, to any
interested party.  Any other use requires the written permission of
eSoft, Inc.

IMPORTANT:  The information herein is subject to change without notice.
Please call or write to confirm factual information of importance to you
or your organization.

