[comp.sys.atari.st] About Mega keyboard cables

orc@pell.uucp (david parsons) (09/23/89)

On 21 Sep 89 12:39:37 GMT, george_seto@brains.UUCP (George Seto) wrote:
> Does anyone know if there is such a thing as a Keyboard Extension Cable
>available for the Mega keyboard? 

  Yes.  Find a 6-wire telephone cord with modular jacks at each end.
*poof* - instant cable.  (for extentions, you need to find a gender
bender 6-wire socket-socket, but it's easier to get, oh, about 20 feet
of telephone cord and a pair of strong magnifying glasses :-)

 -david parsons
 -orc@pell.citadel
 -sitting at the end of a 90-foot extention cable....
 -I'm not making this up.  Really.  Would I lie to you?

apratt@atari.UUCP (Allan Pratt) (09/26/89)

orc@pell.uucp (david parsons) writes:

>On 21 Sep 89 12:39:37 GMT, george_seto@brains.UUCP (George Seto) wrote:
>Find a 6-wire telephone cord with modular jacks at each end.
>*poof* - instant cable.

If that works, I'm really surprised.  The Megas I know of need a
slightly different cable.  You have to turn one connector of a standard
phone cable upside-down.  I know because I had to make my own once and
I couldn't use a phone cable out of the box.  Maybe new Megas or old
ones are the way you describe...


Normal phone cable:

	------		     ------
	   1 |---------------|6
	   2 |---------------|5
	   3 |---------------|4
	   4 |---------------|3
	   5 |---------------|2
	   6 |---------------|1
	------		     ------

Mega Keyboard cable:

	------		     ------
	   1 |---------------|1
	   2 |---------------|2
	   3 |---------------|3
	   4 |---------------|4
	   5 |---------------|5
	   6 |---------------|6
	------		     ------

If you buy the cable without the ends, you can make the Mega keyboard 
kind easily.  If you don't, it's hard: the ends aren't made to be taken
off & rearranged, they're made to crimp on once & stay forever. (TPC
sure knows how to build to last: they didn't want to have to go back
and do it again, back when they handled all repairs and we were just
renting.)

============================================
Opinions expressed above do not necessarily	-- Allan Pratt, Atari Corp.
reflect those of Atari Corp. or anyone else.	  ...ames!atari!apratt

walkerb@tramp.Colorado.EDU (Brian Walker) (09/27/89)

In article <1709@atari.UUCP> apratt@atari.UUCP (Allan Pratt) writes:
>If that works, I'm really surprised.  The Megas I know of need a
>slightly different cable.  You have to turn one connector of a standard
>phone cable upside-down.  I know because I had to make my own once and
>I couldn't use a phone cable out of the box.  Maybe new Megas or old
>ones are the way you describe...

[...Useful diagrams...]

>If you buy the cable without the ends, you can make the Mega keyboard 
>kind easily.  If you don't, it's hard: the ends aren't made to be taken
>off & rearranged, they're made to crimp on once & stay forever. (TPC
>sure knows how to build to last: they didn't want to have to go back
>and do it again, back when they handled all repairs and we were just
>renting.)

The problem isn't too much of a task.  I have seen kits for the crimp on
modular plugs for telephone cables at my local Radio Shack.  Using a
standard telephone extension cable, Just cut off the end, peel, strip the
wires and crimp on a new piece.  That should take care of it.  In just a
few minutes, you would have a an extension for your keyboard.  And
if you should ever get bored with it, you still have a perfectly usable
telephone extension cord.
--
Brian Walker, University of Colorado at Boulder
walkerb@tramp.colorado.edu     ...!{ncar,nbires}!boulder!tramp!walkerb 
 lim   ENGINEERING = BUSINESS   lim   BUSINESS = ARTS AND SCIENCE 
GPA->0                         GPA->0 

apratt@atari.UUCP (Allan Pratt) (09/28/89)

walkerb@tramp.Colorado.EDU (Brian Walker) writes:
>The problem isn't too much of a task.  I have seen kits for the crimp on
>modular plugs for telephone cables at my local Radio Shack.  Using a
>standard telephone extension cable, Just cut off the end, peel, strip the
>wires and crimp on a new piece.  That should take care of it.  In just a
>few minutes, you would have a an extension for your keyboard.  And
>if you should ever get bored with it, you still have a perfectly usable
>telephone extension cord.

I didn't say it was hard, I said it was nontrivial.

But the whole point is you DON'T have a telephone extension cord! You
can't use a Mega keyboard cable as a phone cord, because the wires are
all swapped around.  

(As it turns out, it DOES work, a little: I just tried using a phone
with a Mega keyboard cable, and I got a dial tone.  However, I couldn't
dial using a Touch-Tone (tm) phone.  I expect a rotary phone would
work.  I didn't test to see if the phone would ring.)

============================================
Opinions expressed above do not necessarily	-- Allan Pratt, Atari Corp.
reflect those of Atari Corp. or anyone else.	  ...ames!atari!apratt

dav@eleazar.dartmouth.edu (William David Haas) (09/28/89)

The latest issue of STart has an add for a keyboard cable extender.