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Splicing a DB25 cable

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dirkomatic:
Thanks!  I have a cheap multimeter which may work.  I'll have to check.

mvsfan:
im sorry, i suppose. i was assuming you were using an old db25 paralell bracket plug out of an old pc.

truth is that db25s have been used for much more than that over the years.

My Snes backup unit ive had since i was a kid uses a double ended male db25 connector to communicate with a Pc to load games.

and it was also used in many many other specialized systems, like on a lot of automotive scanners.

these specialty cables are often indeed multi colored especially in automotive systems from my experience.

mvsfan:
I also have a Willem programmer that makes use of this port.

dirkomatic:

--- Quote from: mvsfan on July 18, 2009, 09:17:29 pm ---im sorry, i suppose. i was assuming you were using an old db25 paralell bracket plug out of an old pc.

truth is that db25s have been used for much more than that over the years.

My Snes backup unit ive had since i was a kid uses a double ended male db25 connector to communicate with a Pc to load games.

and it was also used in many many other specialized systems, like on a lot of automotive scanners.

these specialty cables are often indeed multi colored especially in automotive systems from my experience.

--- End quote ---

No problem...  I'm actually not very good at soldering and am using screw terminals everywhere I can...  I'm getting a few DB25 breakout boards and planning on using uncut cables as much as possible.  Good to know about the oxidation, though.

My current panel uses cat5 and I really haven't had many problems with it.  I guess it's not really soldered much, though.

mvsfan:
my opinion on the best connector to use for a control panel is a molex power connector with 0.95 pins In just about however many pin configuration you want in a connector up to about 44.

DB 25 connector pins are very thin just like about any pc connector and require some level of prescision to get them to connect correctly every time.

sooner or later you will bend or break one.

power connectors on the other hand are much thicker and way less prone to breakage.

on my 2 player fighter panel, with a lot of extra buttons in various parts of the cabinet,  ive got 3 connectors to disconnect and then the panel comes right off.
Ive got the PS2 (and i dont mean playstation 2) connector going to the Ipac,
and then ive got two power connectors going to the other buttons and to the coin door.

I could actually combine those two into one but havent done it yet.

The admin buttons hidden on top all go to one connector and then the other connector goes to the coin door.

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