From: jandol@CS.FELK.CVUT.CS
Newsgroups: comp.protocols.tcp-ip.ibmpc
Subject: ka9q-nos
Date: 10 Sep 92 11:11:25 GMT
Distribution: world
Organization: The Internet
X-Unparsable-Date: Thu, 10 Sep 1992 12:19:48 CET


   My name is Jan Dolejs and I live in Prague in Czechoslovakia. At moment
I'm working for Czechoslovak firm called ZPA Cakovice, a producer of control
and computer equipment. One of their products is a system named TELEVEL,
which was designed as a computer interface to the industrial(manufacturing)
environment. The aim of this project is to connect the TELEVEL system to an
ACA computer (Advanced Computers Application Inc.,Newton, Pa.,USA). ACA was
chosen by ZPA Cakovice as a replacement for their own minicomputer ADT 4500
which they also manufactured (this was copy of HP's HP-1000). The firm plans 
to base all its future projects, including software, on ACA and TELEVEL.
   The ACA/32000 computers will be linked together by an ETHERNET using
TCP/IP protocol. X display stations (XDS) from VISUAL Technology will be
used for monitoring and servicing purposes and for viewing the technological
environment in a graphic form.

     +-----------+     +-----+   +-----+        +-----------+
     ! ACA/32000 !     ! XDS !   ! XDS ! ...    ! ACA/32000 !  ....
     !           !     +--+--+   +--+--+        !           !
     +-----+-----+        !         !           +-----+-----+
           !              !         !                 !
           !              !         ! ETHERNET TCP/IP !
     ------+--------------+----+----+-----------------+--------------
                               !
                               !
                     +---------+---------+
                     ! PC-AT386SX        !
                     ! 1 MB RAM          !
                     !                   !
                     +---------+---------+
                               !
                  +------------+-------------+
                  !    T E L E V E L         !
                  +--------------------------+
                    !    ..............    !
                    !                      !
              Technological (Manufacturing) Environment        

   The TELEVEL system will be connected to a PC-AT386SX through a special
interface card and the PC will use a WD8003E or NE2000 netcard on the ETHERNET 
side. The diskless PC won't be equipped with a keyboard nor a monitor. SW
will reside in a special boot card equipped with 640kB of EPROM memory.
   My role in this project is to develop the SW for the PC-AT386SX. I decided
to use the NET program (NOS version) and the corresponding packet driver 
(Clarkson) for WD8003E or NE2000. From January to May 1992 I studied the 
source code and tested the version of NET.EXE (18.12.1991) program including
the packet driver on my ETHERNET network configured in the folowing way:
My son's PC-AT286, my PC-AT386SX, VISUAL's XDS equipped with Telnet protocol
and an ACA/32000 computer. At the moment I have modification of the NET
program to suit my needs and I plan to write new packet driver for TELEVEL.

In May 1992 I maked a work version, equipment TELEVEL is simulated with
PC AT286 and for connection I used a serial line between TELEVEL and
PC-Gateway. I use this version for dynamical debugging and I will finally
substitute Packet driver TELEVEL for Packet driver for Slip8250.

  +------------------------------------------+
  ! PC-AT386                                 !
  !                                          !
  ! Bootp  ! Remote ! Telnet(ga ! Application!     +-------------+
  ! server ! exit   ! teway),   ! for debug  !     ! VISUAL XDS  ! for
  !        ! reboot ! ping,.... !            !     !Telnet(sysop)! debug,
  +--------+--------+-----------+------------+     +------+------+ trace
  !                                          !            !
  ! NOS                                      !            !
  +------------------+-----------------------+            !
                     !                                    !
                     !                                    !
                     ! Ethernet                           !
 --------------------+------------------------------------+--------- 
                     !                    +----------------+
 		     !                    ! Serial line    !
                     !                    !                !
  +------------------+----+-+-------------+----+       +---+-----------+
  ! Pktdrvr NE1000        ! ! Pktdrvr Slip8250 !       !PktdrvrSlip8250!
  +------------------v----+ +---------------^--+       ! + simple      !
  ! NOS              !                      !  !       !               !
  ! (internal Watch  +--->--+               !  !       !   simulation  !
  !  dog like G1EMM)        !               !  !       !               !                
  !                     Tcp port       Udp port!       !   program     !
  +-------------------------v---------------^--+       !               !
  ! Bootp ! Remote ! Echo ! Telnet       !  !  !       !               !
  ! client! server ! serv ! listener     !  !  !       ! PC-AT286      !
  !       !        !      +--------------+  !  !       +---------------+
  !       !        !      !mbox !    mbox!  !  !
  !                       +--------------+  ^  !
  !                       !Sysop! Gateway!  !  !
  !                       +----------+---+  !  !
  !                                  !      !  !
  ! PC-AT286(PC-Gateway)             +--->--+  !
  !  This PC AT has no monitor,                !
  !   no keyboard, no harddisk.                !
  !  The floppy disk is only for boot.         !   
  +--------------------------------------------+

I would like to ask if you could put me in touch with someone who is
working on similar problems and who would be willing to discuss these
isuess with me. Thank you for your kind attention.

My address: Jan Dolejs
            Delnicka 45
            17000 Praha 7 
            Czechoslovakia
E-mail on Internet: jandol@cs.felk.cvut.cs(147.32.14.1)
                    jandol@vax.felk.cvut.cs(147.32.14.2)