Connect ps/2 to EXP8661

  • Thread starter Thread starter HDI
  • Start date Start date
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HDI

Hi,

I want to experiment with an old computer but the manual of the
motherboard isn't so good.

It's an EXP8661 motherbord, you can see the layout at:
http://stason.org/TULARC/pc/motherboards/D/DATAEXPERT-CORPORATION-Pentium-EXP8661.html.

So the MS1 is the ps/2 mouse connector were I have the put in my
counter. The connector on the motherboard has 4 pins and the counter
has 5 holes and one of them hasn't got a wire. So it's like no wire,
yellow one, blue one, red one, green one.

Can anyone help me connecting it?
BTW: can I do something wrong by connecting it wrong?
 
HDI said:
Hi,

I want to experiment with an old computer but the manual of the
motherboard isn't so good.

It's an EXP8661 motherbord, you can see the layout at:
http://stason.org/TULARC/pc/motherboards/D/DATAEXPERT-CORPORATION-Pentium-EXP8661.html.

So the MS1 is the ps/2 mouse connector were I have the put in my
counter. The connector on the motherboard has 4 pins and the counter
has 5 holes and one of them hasn't got a wire. So it's like no wire,
yellow one, blue one, red one, green one.

Can anyone help me connecting it?
BTW: can I do something wrong by connecting it wrong?
Click to expand...

You most likely need a PS/2 connector that mounts into one of openings
in your chassis for expansion cards. Here's an example that has a
parallel port *and* a PS/2 port:

http://www.pccables.com/cgi-bin/ord...7126&search=CASE&rsite=google.comsearc&rcode=

With a bit more of a search, you can probably find one that just has a
mouse port.
 
You most likely need a PS/2 connector that mounts into one of openings
in your chassis for expansion cards.  Here's an example that has a
parallel port *and* a PS/2 port:

http://www.pccables.com/cgi-bin/orders6.cgi?action=Showitem&id=ID7920....

With a bit more of a search, you can probably find one that just has a
mouse port.- Tekst uit oorspronkelijk bericht niet weergeven -

- Tekst uit oorspronkelijk bericht weergeven -
Click to expand...

I've got already an ps/2 poert but I don't know how to connect it to
my motherboard.
 
kony said:
I don't recall, if I ever knew, what the typical color
coding for a PS2 port dongle was. You have vcc (power),
ground, data, and clock lines.

With a multimeter you can determine which pin is power by 5V
when the system is on (meter ground being system ground
anywhere). With the meter the ground pin will have
practically zero resistance to case ground. With data and
clock, if you get them reversed it won't work, just switch
the two around and try again.

Similar for the dongle itself, by looking at a pinout for a
PS2 port, you can use the meter to check continuity to
confirm which pins in the socket each connector pin
corresponds to.
Click to expand...

Found a manual here. MS1 is "DATA,DATA,GND,VCC" :-)
Don't know what happened to the CLOCK signal.

http://www.motherboards.org/files/manuals/24/EXP8661.pdf

Paul
 
I don't recall, if I ever knew, what the typical color
coding for a PS2 port dongle was.  You have vcc (power),
ground, data, and clock lines.

With a multimeter you can determine which pin is power by 5V
when the system is on (meter ground being system ground
anywhere).  With the meter the ground pin will have
practically zero resistance to case ground.  With data and
clock, if you get them reversed it won't work, just switch
the two around and try again.

Similar for the dongle itself, by looking at a pinout for a
PS2 port, you can use the meter to check continuity to
confirm which pins in the socket each connector pin
corresponds to.- Tekst uit oorspronkelijk bericht niet weergeven -

- Tekst uit oorspronkelijk bericht weergeven -
Click to expand...

I don't have a multimeter.

So the lines are data, data ground, vcc.

Should I connect it like this: yellow wire (data), blue wire (data),
red wire (ground), green wire (vcc)
Or: green wire (data), red wire (data), blue wire (ground), yellow
wire (vcc)

And the hole with no wire is for nothing?
 
HDI said:
I don't have a multimeter.

So the lines are data, data ground, vcc.

Should I connect it like this: yellow wire (data), blue wire (data),
red wire (ground), green wire (vcc)
Or: green wire (data), red wire (data), blue wire (ground), yellow
wire (vcc)

And the hole with no wire is for nothing?
Click to expand...

OK, the manufacturer says it is data, data, ground, vcc.

It is either

clock, data, ground, vcc

or it is

data, clock, ground, vcc

According to this page, the data and clock are open collector,
so you should be able to try either wiring pattern and see
if it works. They also include a couple diagrams for
DIN connector wiring.

http://eyetap.org/ece385/lab4.htm

Paul
 
CBFalconer said:
You can get a cheap one with about 5 dollars and a trip to Radio
Shack. Do so.
Click to expand...

OP is in Belgium; dunno if they have RatShacks there. Maybe DABS or Maplin
or something like that.

Definitely a "must have" tool for pretty much *any* tinkering hobby though.

Jon
 
Jon said:
OP is in Belgium; dunno if they have RatShacks there. Maybe DABS
or Maplin or something like that.
Click to expand...

Just for fun, how do you know that (location)? He is posting
through google.
 
CBFalconer said:
Just for fun, how do you know that (location)? He is posting
through google.
Click to expand...

As Kony noticed, I got it from the headers. From there, I used the "IP
Information" tool at dnsstuff; they're getting pretty good at giving an
accurate location these days, at least for wired locations anyway.

Jon
 
Google included this in the header:
NNTP-Posting-Host: 81.82.192.67

Ip lookup resolves to Belgium.  They must have hardware
stores/etc, it wouldn't be a great meter from a hardware
store but would tend to have the basic functionality for
voltage, continuity, and other misc. tests.
Click to expand...

OK thanks you for your advice.
I looked in the local store but there were only expensive ones.
If I can't find one I buy a cheap usb slot.
 
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