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