Set Up for NEC 9635E Modem
                       V.32 - V.42 - V.42bis - MNP5
                   to Operate on a Bulletin Board System


      

This is the NEC 9635E modem settings I use with my BBS.  I am sharing
these settings with others interested in this particular modem because
of the uniqueness of the modem itself and the difficulty that might
otherwise be encountered by anyone trying to make it work with a BBS.

The NEC 9635E is a new modem (11/90) on the market and it complies with
a new ruling of the FCC that all modem manufacturers will eventually
have to abide by... that of NOT providing an 'off-hook' command (ATH1).
The FCC has made this ruling because of the impact 'off-hook' lines
make to new technology digital switching machines serving the majority
of the country today.  In a digital switching machine, when a line goes
'off-hook' for longer than a pre-set time, the CPU of the machine takes
that particular number out of it's 'active' line scanning database.
When that line goes back 'on-hook', the CPU of the machine (after a
period of time) places that number back into it's 'active' line scanning
database.  To alleviate CPU processing time required of handling the
'off-hook' line conditions, the FCC ruled that there would be no
capability of modems to place numbers off-hook.

NEC decided to go ahead and 'bite the bullet' and start compliance in
1990.

With my set up, callers on the node served by the NEC simply ring through
instead of getting a 'busy' signal when the node is down for maintenance
or for mail runs, etc.

I write the settings to NRAM #2 (&W1) and use "ATZ1" to initialize the
modem for the BBS.  I leave the NRAM #1 settings alone since they are
set up for calling out with a communications program.  For calling out,
I initialize the modem using "ATZ".

In my BBS software options (I run PCBoard), the following settings are
used:


     Opening Baud Rate (300-115200): 9600
        Modem Initialization String: ATZ1
              Modem Off-Hook String: ATH
         Modem Delay During Recycle: 0

* NOTE:  Do not 'lock' the comm port!  If you do, this
         particular modem will report to the caller a CONNECT
         speed equal to whatever you locked your port at.  It
         works great at 9600 trellis without being locked.  If
         you lock the comm port, you will have to change the
         "\J1" setting to "\J0".


To write the required settings into the NEC, I use:

        ATE0M0Y1S0=0&C1&D2&R2&T5&W1
        AT%E2%P0%P4%B6%G1&W1
        AT\D0\G1\Q3\V1&Y1&W1

You can do this after bringing the modem up in your communications
program (I used Qmodem).

Now all you have to do is to insert the proper settings into your BBS
software and you're ready to run.

The following is a list of the settings after setting up with the info
above:

-------------------------------------------------------------------------------

  * Asterik denotes 'default' settings that do not require changing


*--*  04-12-91  -  13:23:47  *--*


          Profile &V0

     Last AT rate=19200  Char size= 10bits  Stop bit=1  Parity=No parity

     Basic Commands                        Extended Commands
   * B1  BELL                              &C1  CD follow the true carrier
   * D0T  Tone Dial                         &D2  Hang-up when TR OFF
     E0  Command Echo Disable            * &G0  Guard Tone Disable
     M0  Speaker OFF                     * &J0  No aux relay (RJ-11), MI/MIC ON
   * Q0  Send result codes               * &L0  DIAL UP
   * V1  Verbose result codes            * &P0  39/61 Make/Break Ratio
   * X4  Extended result codes set 4     * &Q0  ASYNC Mode
     Y1  Enable long space disconnect      &R2  Carrier lost, CS OFF for 5 sec.
                                         * &S0  MR forced ON, OFF in test
     %E2  Enable Auto Fall Back Retrain    &T5  Deny RDLB request
     %P0  Disable Password                 &W1  Store active profile to 1
     %P4  Disable remote access          * &X0  Internal clocks
   * %T0  Disable DTR level op.            &Y1  Select PROFILE 1 on powerup

     Press a key for next screen



     Error Control & Compression Commands
   * \A3    Maximum 256 character block
   * %A013  Fallback character
   * \B3    MNP generates 300MS BREAK
     %B6    Maximum modem port rate = 9600 bps trellis
     %G1    Orig. modem follows %B command 
   * \C0    NON-BUFFERED RELIABLE mode
     \D0    Allow link regardless of ERROR
   * %C1    Compression enable
   * \E0    Echo data disable
     \G1    Modem (DCE) flow control enable
   * %Q0    Disable all Protocol
   * \J1    Speed buffer disable
   * \K5    Send BREAK sequence
   * \N6    AUTO-RELIABLE V.42, MNP or Normal
     \Q3    RTS/CTS flow control
   * \T000  Inactivity timer
     \V1    Error mode responses enable
   * \X0    Flow control mode

     Press a key for next screen



               S - Registers
     S0 =000  Ring to answer on
   * S2 =043  Escape code character
   * S3 =013  Carriage Return code
   * S4 =010  Line Feed code
   * S5 =008  Back space code
   * S6 =002  Wait before blind dial
   * S7 =030  Wait for carrier before abort
   * S8 =002  Pause time for comma
   * S9 =006  DCD response time
   * S10=014  Carrier loss to on-hook
   * S12=050  Escape code guard time
   * S18=000  Test timer
   * S25=005  DTR mask delay
   * S26=001  RTS to CTS delay
   * S29=000  LL transmit level
   * S30=000  LL auto dial backup selection
   * S31=000  LL auto restoral timer
   * S32=000  LL MNP inact. timer for auto restoral
   * S38=000  Delay before force hangup
   * S39=001  Call linking retries
   * S40=015  Time between retries

I hope this info helps others trying to set up this particular modem
for use on a BBS.



George Lollar
BEC BBS
Springfield, IL

          Node 1 using USR HST is (217) 789-5080
           Node 2 using USR DS is (217) 789-5970
        Node 3 using NEC 9635E is (217) 789-5971