The Complete pinouts guide to Parallel-Serial Port, Network and Monitor Cables
Everything for DCC (Direct Cable Connection of Win95/98), Normal and Null Modem Cables, etc.
Guide compiled/collected/prepared/experimented by Mahendra from India


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KEYBOARD  CONNECTOR  PINOUT  SECTION

I really don't know why I have put this info but as I told you somewhere on this website that if I have the info then I will put that on the internet for anybody who is looking for it.
Mail me at pinout@indiacam.net

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INDEX: KEYBOARD CONNECTOR CHAPTER
1. AT-XT Keyboard Connector
2. PS2 Keyboard Connector
3. PS2 (at motherboard)  to AT-XT keyboard converter and VICE VERSA.
4. WARNING

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1. AT-XT Keyboard Connector

This is also called 5pin DIN connector which appears as female socket on NON-ATX motherboard and male pin connector wired with keyboard.  Since many years we have been using keyboards with this type of connector only.
Front and Side view of the MALE 5 Pin DIN keyboard connector.
Pin Description for AT-XT Normal Keyboard
Pin no.Pin Description (Signal Name)
1+KBD Data
2Reserved
3Ground
4+5.0 volt dc
5+KBD CLK

Shield Frame Ground

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2. PS2 Keyboard Connector

This is also called 6pin DIN connector which appears as female socket on ATX motherboard and male pin connector wired to keyboard.  Since many years we have been using keyboards with AT-XT type of connector only.  But nowadays most computers motherboards are coming with PS2 connectors on motherboards for keyboard.  All of the ATX motherboards do have PS2 keyboard support.

Very nicely they have succeeded to confuse us with PS2 Keyboard and PS2 Mouse because both PS2 female sockets look same on motherboard.  Sometimes we have figure out ourselves that which is for mouse and which is for keyboard.  Please notice a black spot in the middle of the pin which is a plastic square pin which is designed to connect the pin properly. PS2 pins are very thin and small hence should be connected with care. If you try to connect them forcibly then pins might break too.  Be careful.

Front and Side view of the MALE 6 Pin DIN keyboard connector.
Pin Description for PS2 Keyboard
Pin no.Pin Description (Signal Name)
1+KBD Data
2Reserved
3Ground
4+5.0 volt dc
5+KBD CLK
6Reserved

Shield Frame Ground

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3. PS2 (at motherboard)  to AT-XT keyboard converter
 and Vice Versa

Is it very simple and easy to make converter for PS2 female socket on motherboard and a keyboard with AT-XT male (din 5) connector.  Because the pin descriptions are same and can be easily recognized and soldered.  When you open the connector and see backside you will find tiny pin numbers printed on the body.

All you need is a male Din 6 (PS2 male) connector and Female Din 5 (AT-XT) connector and a small cable (just 3 to 4 inches) with at least 4 cores (wires) if you have one more wire then its good because you can use it for optional grounding called Shield Frame Ground to connect the connector from frame to frame with extra wire or shield wire found in cable.

PS2
AT-XT
Pin Description and conversion
Pin Description 
(Signal Name)		Pin no. 
on PS2 Connector		Pin no. 
on AT-XT Connector
+KBD Data11
Reserved2 (no connect)2 (no connect)
Ground33
+5.0 volt dc44
+KBD CLK55
Reserved6 (no connect)(not present)
Shield Frame Ground

AT-XT (at motherboard) socket to PS2 keyboard converter.

All you need is a male Din 5 (AT-XT male) connector and Female Din 6 (PS2) connector and a small cable (just 3 to 4 inches) with at least 4 cores (wires) if you have one more wire then its good because you can use it for optional grounding called Shield Frame Ground to connect the connector from frame to frame with extra wire or shield wire found in cable.

Back to INDEX

http://isp.indiacam.net

WARNING:
Please read the warning note on my main pinout page. I am not responsible if you mess up with your cable with wrong soldering or wire-crimping. Make and use at your own risk.

BEFORE EMAILING ME....
Read the top section of my http://indiacam.net/pinout

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