 RU.HACKER (2:5020/140.13)  RU.HACKER 
 From : Kostia Sinitchenko                  2:5030/110      Tue 28 Sep 93 15:20 
 Subj : Re: LPT Link                                                            

Hi Eugeny!

          ᯠ  LPT-LPT  Lantastic.

             2 - 15         16 - 16
             3 - 13         17 - 17
             4 - 12         18 - 18
             5 - 10         19 - 19
             6 - 11         20 - 20
            10 -  5         21 - 21
            11 -  6         22 - 22
            12 -  4         23 - 23
            13 -  3         24 - 24
            15 -  2         25 - 25


{ ஢ઠ ࠫ쭮   Lantastic. }
uses crt;
var
  paddr: word;
  data,inp: byte;
  a:char;

function bin(b: byte): string;
var
  msk: byte;
  s: string;
begin
  msk:=128;
  s:='';
  repeat
    if (b and msk) = 0 then s:=s+' 0' else s:=s+' 1';
    msk:=msk div 2
  until msk = 0;
  bin:=s
end;

begin
  paddr:=memw[$40:8];
  if paddr = 0 then begin
    writeln('No parallel port found!');
    halt(1)
  end;
  port[paddr+2]:=$EC;
  writeln;
  data:=$55;
  while not keypressed do begin
    port[paddr]:=data;
    inp:=port[paddr+1];
    inp:=inp shr 3;
    write(#13+'DATA: ',bin(data),' CONTROL: ',bin(inp));
    data:=not data;
    delay(300)
  end;
  a:=readkey;
  if a = #0 then a:=readkey;
  port[paddr]:=0;
end.


 SU.FILEECHO (2:5020/140.13)  SU.FILEECHO 
 From : Vadim Popkov                        2:465/18        Fri 08 Oct 93 16:50 
 Subj : .஢  Norton 4.0                                                   

ਢ Anton!

 AP>    - ᠭ ஢  Link ⮭ १ LPT.   
 AP>  ?

 2 ------- 15
 3 ------- 13
 4 ------- 12
 5 ------- 10
 6 ------- 11
15 -------  2
13 -------  3
12 -------  4
10 -------  5
11 -------  6
25 ------- 25


=============================================================================
* Forwarded by Serg Agarkoff (2:5040/22.3)
* From : Konstantin Pyryaev, 2:5040/20 (㡡, 16  1993  11:40)
* To   : Serg Agarkoff
* Subj : NC4' lpts
=============================================================================

뤥p    fastlinx'

-------------------- Choosing between parallel or serial -------------------

        Speed

The main difference between parallel and serial mode is speed. Parallel
runs 25% to 4 times faster than serial mode, depending on the speed of the
computer.  You will see less improvement if you are running on standard
PC-type machines than if you are running on faster 80286 or 80386 based
machines.

    Cable length

If you are planning to do transfers over cables greater than 15 feet long,
you may want to use serial transfer mode.  Parallel transfers under these
conditions sometimes get more transmission errors, and sometimes even fail
to communicate entirely.  7-wire serial cables have a similar problem with
length.  You may have to transfer in 3-wire mode if the 7-wire cable
is unshielded or excessively long.

There are specially shielded cables available in lengths up to 100 feet that
will work at full speed for both the parallel and the 7-wire serial
communications.  Contact Rupp Corporation for details.


     Port usage

In choosing between serial and parallel, you should consider what ports are
most readily available on the machines you will be using.  For instance, if
you only have one parallel port and do a lot of printing with it, you may
want to choose serial transfer.  On the other hand, if you only have one
serial port and you have a mouse hooked up to it, using the parallel port
for data transfer might be easier.

Additional serial or parallel cables may be purchased as a separate item
from Rupp Corporation for $39.95.  You may also choose to have your own
cables made using the specifications below.

-------------------------- Cable Specifications ----------------------------

Following is a description of the pin connections for a FastLynx 7-wire
serial cable.  The cable is a 4-headed cable with a 9-pin and 25-pin
female connector on both ends. The cable is wired as follows:

    9 pin   25 pin     25 pin  9 pin
    -----   ------     ------  -----
    pin 5   pin 7   <---->  pin 7   pin 5   (Ground - Ground)

    pin 3   pin 2   <---->  pin 3   pin 2   (Transmit - Receive)
    pin 7   pin 4   <---->  pin 5   pin 8   (RTS - CTS)
    pin 6   pin 6   <---->  pin 20  pin 4   (DSR - DTR)

    pin 2   pin 3   <---->  pin 2   pin 3   (Receive - Transmit)
    pin 8   pin 5   <---->  pin 4   pin 7   (CTS - RTS)
    pin 4   pin 20  <---->  pin 6   pin 6   (DTR - DSR)

The ground wire is connected to the same pin on both ends.  The last
three wires are a reverse of the prior three.

Following is a description of the pin connections for a FastLynx
parallel cable.  The cable has a male DB25 connector at both ends.

     25 pin     25 pin
     ------     ------
     pin 2   <---->  pin 15
     pin 3   <---->  pin 13
     pin 4   <---->  pin 12
     pin 5   <---->  pin 10
     pin 6   <---->  pin 11

     pin 15  <---->  pin 2
     pin 13  <---->  pin 3
     pin 12  <---->  pin 4
     pin 10  <---->  pin 5
     pin 11  <---->  pin 6

     pin 25  <---->  pin 25

The second set of 5 wires is the reverse of the first set.

