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From: foulkes@utx1.UUCP
Newsgroups: comp.sources.wanted
Subject: Wanted: Synchronous Communication Driver Software
Message-ID: <22@utx1.UUCP>
Date: Thu, 29-Jan-87 15:42:26 EST
Article-I.D.: utx1.22
Posted: Thu Jan 29 15:42:26 1987
Date-Received: Sat, 31-Jan-87 08:54:24 EST
Organization: Racal-Milgo, Ft. Lauderdale, Fl.
Lines: 61


We are looking top obtain/buy some communications software. If you
have any recommendations/advice/products please e-mail or telephone

	Tom Foulkes (305) 476-6857 
	{allegra} !novavax!utx1!foulkes


    We need   software   for    implementation    of    synchronous
    communication drivers (OSI level 2).  Required   protocols are -

      1.  HDLC - Balanced operation Asynchronous  balanced  mode
          Class (Link Access Protocol Balanced - LAPB).

      2.  HDLC - Unbalanced operation Normal response mode Class
          (Synchronous Data link control - SDLC).

    Following   diagrams   outline   the   environment   &   the
    requirements.


    1.  Link Access protocol Balanced (LAPB)
        ------------------------------------


      +---------------------------+               +-------------------------+
      | STATION A -               |     SDLC      |  STATION B              |
      |                           |      +        |                         |
      | Processor - Micro VAX.    |     LAPB      | Processor - MC68000/    |
      |                           |<------------->|             Intel80188  |
      | Operating System -        |               | Operating System -      |
      |             UNIQ/ULTRIX   |               |            Unix like    |
      |                           |               |                         |
      | Communication controller  |               | Communication controller|
      |     ???????? (*)          |               |         Z8530 (**)      |
      +---------------------------+               +-------------------------+

      *  Need Communication controller on Micro Vax - Suggestions
          are welcome.

      **  On MC68000 & Intel 80188 boards, controller similar to
          Z8530 is ok.

    2.  Synchronous Data Link control (SDLC)
        ------------------------------------

      +---------------------------+               +-------------------------+
      | Primary Station           |               | Secondary Station(s)    |
      |                           |               |                         |
      | Processor - MC68000/      |     SDLC      | Processor - Intel 80188 |
      |             Intel80188    |<------------->|                         |
      | Operating System -        |               | Operating System -      |
      |            Unix like      |               |            Unix like    |
      |                           |               |                         |
      | Communication controller  |               | Communication controller|
      |        Z8530              |               |         Z8530           |
      +---------------------------+               +-------------------------+
-- 
{allegra|codas}!novavax!utx1!foulkes
                     
Tom L. Foulkes @ Racal-Milgo,  Fort Lauderdale, Florida (305) 476 6857