[comp.sys.amiga.tech] Homebrew Cables

840445m@aucs.UUCP (Alan W. McKay) (04/14/89)

I want to make my own modem cable for my Amiga 1000 computer.  Could
anyone send me the necessary pin connections to do this, or tell me
where I could find out how to do it?  Thank you.
-- 
% Alan W. McKay     %                                             %
% Acadia University %   " The world needs more Socrates           %
% Wolfville N.S.    %     walking the streets today "             %
% CANADA            %                       - S. Corbett          %

tadguy@cs.odu.edu (Tad Guy) (04/15/89)

In article <1788@aucs.UUCP>, 840445m@aucs (Alan W. McKay) writes:
>I want to make my own modem cable for my Amiga 1000 computer.

Good for you!

>Could
>anyone send me the necessary pin connections to do this, or tell me
>where I could find out how to do it?

First, you should get a good book on RS232 to know what pins do what.
Most technial bookstores sell such manuals.  Then, get out your dusty
_Introduction_to_Amiga_ book that came with your A1000, and use pages
7-11 and 7-12 as a guide to what pins on the Amiga's seiral port are
normal and which are abnormal.  Don't connect anything to pins 14, 21,
or 23 (unless you know what you're doing).  Good luck!

	...tad

protcoop@leibniz.uucp (06/16/89)

I want to extend my external disk drive cable but I wonder how long
I can make the thing without degrading performance in any way.  Has
anybody out there tried this?  I want to do it so I can program with
my A500 on my lap, the way I used to do with my 1000.  Also, I have
a monitor that has an cable coming right out of the back of it.  The
cable goes into an IBM CGA card.  The RGB port on the AMIGA seems to
have the pins I need (R,G,B,I, Horiz, Vert, GND).  I want to make a
cable to be able to use this monitor.  Has anyone tried this.  I took
the monitor cable connector apart last night and discovered that the
RGBI pins were all soldered together with resisters between them ...
but each had its own wire running into the cable (all but Intensity
I think).  What is the longest I should make the monitor cable?

Finally ... where the heck (in CANADA hopefully) can I get DB23 
connecters?  Everyone tells me that only C= makes them.  I say they
are full of BS.
----------------------------------
Alan W. McKay  |  My opinions are mine, yours are yours. |  Eat Food  |
NEPEAN, Ont.   |  I in no way pretend to represent the   |     and    |
613-763-8980   |  the options of my employer.  So there. |   LIVE !!  |

rodd@dasys1.UUCP (Rod Dorman) (06/25/89)

In article <609@bnr-fos.UUCP> protcoop@leibniz.uucp () writes:
>
>Finally ... where the heck (in CANADA hopefully) can I get DB23 
>connecters?

If all else fails use a hacksaw on a DB25 connector.  Just be careful
when interpreting the lower row of numbers, they'll be off by one.

					-- Rod --

Rod Dorman						rodd@dasys1.uucp
Big Electric Cat Public Unix
	"The ships hung in the sky in much the same way that bricks don't"

denbeste@bbn.com (Steven Den Beste) (06/25/89)

In article <10037@dasys1.UUCP>, rodd@dasys1.UUCP (Rod Dorman) writes:
> In article <609@bnr-fos.UUCP> protcoop@leibniz.uucp () writes:
> >
> >Finally ... where the heck (in CANADA hopefully) can I get DB23 
> >connecters?
> 
> If all else fails use a hacksaw on a DB25 connector.  Just be careful
> when interpreting the lower row of numbers, they'll be off by one.
> 
> 					-- Rod --
> 
> Rod Dorman						rodd@dasys1.uucp
> Big Electric Cat Public Unix
> 	"The ships hung in the sky in much the same way that bricks don't"


Er, won't they be off by TWO?

bear@bucsb.UUCP (Blair M. Burtan) (07/07/89)

In article <10037@dasys1.UUCP> rodd@dasys1.UUCP (Rod Dorman) writes:
>In article <609@bnr-fos.UUCP> protcoop@leibniz.uucp () writes:
>>
>>Finally ... where the heck (in CANADA hopefully) can I get DB23 
>>connecters?
>
>If all else fails use a hacksaw on a DB25 connector.  Just be careful
>when interpreting the lower row of numbers, they'll be off by one.
>
I managed to find DB-23 in one of those computer flea markets.
They had nifty shielded hoods too.

                            - Bear