Thread View: comp.sys.ibm.pc.hardware.misc
3 messages
3 total messages
Started by Fred Klabuster
Sat, 20 Mar 1999 00:00
PS/2 socket layout
Author: Fred Klabuster
Date: Sat, 20 Mar 1999 00:00
Date: Sat, 20 Mar 1999 00:00
31 lines
2213 bytes
2213 bytes
After posting a question on USB to this newsgroup yesterday, I now have
a question about PS/2 -- the quest never ends. Can anyone tell me the
layout for a PS/2 mouse socket (actually, I also would like to know if
there is a difference between the PS/2 mouse and keyboard socket).
My PS/2 socket looks something like this:
3 4
2 8 5
1 6
7 (PS/2 mouse socket, seen from
front)
(Wow, I'm good at this. It's a bit like ASCII - art).
Okay, notches 7 and 8 look like they are just there to keep the PS/2
plug in place, and to prevent plugging it the wrong way.
Only holes 1, 2, 3 and 5 are live; 4 and 6 are dead. From this socket,
FOUR cables lead to the main board, which has FIVE sprockets ... same
old same-o, I had the exact same problem with the USB connector
yesterday. (Maybe cables have become very expensive, and manufacturers
simply can't afford them any more). They five on-board pins are:
pin 1 ... data
pin 2 ... clk (?)
pin 3 ... ground
pin 4 ... nc (??)
pin 5 ... vcc (???)
If you have any info, I will be glad to hear from you. Please reply to
newsgroup AND e.mail me directly. Thanks.
--- maikel ---
Re: PS/2 socket layout
Author: Fred Klabuster
Date: Sun, 21 Mar 1999 00:00
Date: Sun, 21 Mar 1999 00:00
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I have found the answer myself, I am posting the info for public information: (from http://www.hut.fi/~then/mytexts/mouse_adapters.html) --- maikel --- >Technical details of the mouse adapters > >PS/2 mouse connector details > >6-pin MINI-DIN connector pinout >(when you look to male connector) > > 4 u 6 > 1 . 2 > > 3 5 > >1. GND >2. +5V >3. DATA >4. CLOCK >5. Not used >6. Not used > >Logitech PS/2 mouse to 25 pin RS-232 port > >PS/2 BD25 >============ >1 7 >5 2 >2 +5V power from adapter regulator > >The +5V power is made from RS-232 signal pins TD, DTR and RTS by summing the current available form those pins and the regulatin git to >constant +5V source. The adapter could not be easily opened so I was not able to take a look at the electronics inside the adapter. > >9 pin RS-232 connector to PS/2 connector from Microsoft Mouse > >BD9 PS/2 >============ >1 4 >5 1 >9 3 >8 2 > >This adapter just gives +5V to mouse and routes PS/2 signal from normally unused 9 pin connector pins to the PS/2 connector. Fred Klabuster schrieb: > After posting a question on USB to this newsgroup yesterday, I now have > a question about PS/2 -- the quest never ends. Can anyone tell me the > layout for a PS/2 mouse socket (actually, I also would like to know if > there is a difference between the PS/2 mouse and keyboard socket). > My PS/2 socket looks something like this: > > 3 4 > > 2 8 5 > 1 6 > 7 (PS/2 mouse socket, seen from > front) > > (Wow, I'm good at this. It's a bit like ASCII - art). > Okay, notches 7 and 8 look like they are just there to keep the PS/2 > plug in place, and to prevent plugging it the wrong way. > Only holes 1, 2, 3 and 5 are live; 4 and 6 are dead. From this socket, > FOUR cables lead to the main board, which has FIVE sprockets ... same > old same-o, I had the exact same problem with the USB connector > yesterday. (Maybe cables have become very expensive, and manufacturers > simply can't afford them any more). They five on-board pins are: > > pin 1 ... data > pin 2 ... clk (?) > pin 3 ... ground > pin 4 ... nc (??) > pin 5 ... vcc (???) > > If you have any info, I will be glad to hear from you. Please reply to > newsgroup AND e.mail me directly. Thanks. > --- maikel ---
Re: PS/2 socket layout
Author: Dick Perron
Date: Mon, 22 Mar 1999 00:00
Date: Mon, 22 Mar 1999 00:00
45 lines
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2648 bytes
Fred Klabuster wrote: > After posting a question on USB to this newsgroup yesterday, I now have > a question about PS/2 -- the quest never ends. Can anyone tell me the > layout for a PS/2 mouse socket (actually, I also would like to know if > there is a difference between the PS/2 mouse and keyboard socket). > My PS/2 socket looks something like this: > > 3 4 > > 2 8 5 > 1 6 > 7 (PS/2 mouse socket, seen from > front) > > (Wow, I'm good at this. It's a bit like ASCII - art). > Okay, notches 7 and 8 look like they are just there to keep the PS/2 > plug in place, and to prevent plugging it the wrong way. > Only holes 1, 2, 3 and 5 are live; 4 and 6 are dead. From this socket, > FOUR cables lead to the main board, which has FIVE sprockets ... same > old same-o, I had the exact same problem with the USB connector > yesterday. (Maybe cables have become very expensive, and manufacturers > simply can't afford them any more). They five on-board pins are: > > pin 1 ... data > pin 2 ... clk (?) > pin 3 ... ground > pin 4 ... nc (??) > pin 5 ... vcc (???) > > If you have any info, I will be glad to hear from you. Please reply to > newsgroup AND e.mail me directly. Thanks. > --- maikel --- Fred I have the PS/2 mouse and keyboard sockets documented on a PCPINOUT document on my PC Hdwe page. -- Dick Perron dperr@randomc.com http://www.randomc.com/~dperr/pc_hdwe.htm Whether you think you can or you think you can't.........will happen.
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