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From: W8SDZ%mit-mc@sri-unix.UUCP
Newsgroups: net.micro.cpm
Subject: none
Message-ID: <3190@sri-arpa.UUCP>
Date: Mon, 18-Jul-83 10:13:00 EDT
Article-I.D.: sri-arpa.3190
Posted: Mon Jul 18 10:13:00 1983
Date-Received: Wed, 20-Jul-83 08:28:22 EDT
Lines: 124

From:  Keith Petersen 

The following is forwarded for informational purposes only.
Neither the author nor I have any connection with PMMI.
Replies to the author, please, not me.
--Keith

--forwarded file: PMMI212.DOC--


            The PMMI MM-212, The 300/1200 S-100 Modem
		A preview by Mark Pulver  -  AIMS
                (312) 789-0499  -  24hrs  -  PMMI

                            07-14-83       

     Well, starting at the end of August, PMMI will start to ship 
their new S-100 modem that a lot of us have been waiting for. As 
taken from PMMI's brochure, here is some of what we can expect.

     o    Baud Rates are 45.5-300 and 1200 baud
     o    1200 baud is Async or Bisync
     o    A very full featured control ROM, resulting in a very 
          intellegent modem 
     o    Modem is controlled through single ASCII characters
               D  -  Dialing string follows, 32 characters max.
               B  -  Blind dial, ( 5 second pause )
               T  -  Touch tone the following numbers
               P  -  Pulse dial the following numbers
               K  -  Wait for another dial tone
               R  -  Redial last number entered
               M  -  Display dialer memory, with command codes
               H  -  Originate calls in 212 mode
               L  -  Originate calls in 103 mode
               O  -  Force modem into originate mode
               A  -  Force modem into answer mode
               Q  -  Hang up phone
               SR    -  Software reset defaults
               Cxxxx -  Change options table

     o    Modem will dial all 16 touch tones
               0-9, *, #, and A-D

     o    Modem reports progress by single ASCII characters
               D  -  Dial tone detected
               R  -  Remote end ringing
               B  -  Remote end busy, (terminates call)
               V  -  Voice detection! (terminates call)
               F  -  Failed call
               T  -  Time out
               I  -  Invald command
               M  -  Dialer memory overflow
               N  -  No dial tone
               E  -  Exiting command mode, starting comm mode
               L  -  103 carrier detect
               H  -  212 carrier detect

                 Ring detect also by DSR status

     o    Options list, All modifiable, * indicates default
              *A  -  Set asynchronous mode
               B  -  Set bisynchronous mode
               D  -  Answer only 212 modems
              *E  -  Answer 212 or 103 modems
              F-I -  Set character length of 8-11 bits
                       H, 10 bits, is the defualt
              *J  -  Enable loss of carrier disconnect
               K  -  Disable loss of carriewr disconnect
              *L  -  Enable receive space disconnect
               M  -  Disable receive space disconnect
               N  -  Enable send space disconnect
              *O  -  Disable send space disconnect
              *P  -  Enable timeout disconnect on answer
               Q  -  Disable timeout disconnect on answer
              *R  -  Enable respond to remote test
               S  -  Disable respond to remote test
               T  -  Enable analog loopback busy out of line
              *U  -  Disable analog loopback busy out of line
               V  -  Enable command mode echo
              *W  -  Disable command mode echo
              *X  -  Enable call progress detection
               Y  -  Disable call progress detection
               Z  -  Fail call timer = no time out
                   *a  -  30 seconds
                    b  -  60 seconds
             c-k  -  Retry call 1-9 times respectively
              *l  -  No call retry
              *m  -  Enable voice detection
               n  -  Disable voice detection
              o/p - Enable/Disable data available interrupt
              q/r - Enable/Disable transmitter empty int.
              s/t - Enable/Disable ring detect interrupt

               All interrupts default to disabled

     o    As the MM-103, the modem requires 4 contiguous ports
     o    Deliveries are due to start late August
     o    Orders are being taken now

     From a reference in the brochure, as well as being able to 
read the name off of the chip in the cover photo, it looks as 
though Racal-Vadic had a bit to do with the developement of the 
MM-212, nothing wrong with that. I only wish that they had 
somehow been able to keep the programability of the MM-103.

     I myself plan to try the approach of leaving both modems in 
the system, and online. The MM-212 will do all of the answering, 
if a Bell 103 carrier is detected,( modem sends an "L" ), then I 
plan to switch over to the MM-103, and go through the normal baud 
checking that most of us are used to. Otherwise, the MM-212 will 
handle the call entirely. Now, my first impression of that crazed 
thought is that there will be a lot of code laying around, but 
seeing how the 212 seems to be dream to control versus the Hayes 
300/1200, I'll sacrifice a few nights and weekends of work, and 
trade 1/2K or so of code to do it! The flexibility will be 
enormous for us S-100 users...

     I hope this has shed some light on what PMMI is doing these 
days. By the way, the suggested retail is $695.95, not bad 
considering what it would cost those of us without an open serial 
port to add a quad board plus an external modem. And you still 
might not be able to get all of the features.

--end--