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DIN
IEC/DIN EN 60130-9 connector

DIN, short for Deutsches Inititut für Normung (German Standards Institute), is a name that is commonly used for a series of circular connectors that were standardised in the early 1970s for use on audio equipment and other electronic devices. The DIN connector standard was originally defined in DIN 41524, DIN 45322, DIN 45329, DIN 45326 and also in other standards [1].


The outer diameter of the metal shell of a DIN connector is 13.2 mm, and the 1.45 mm pins are all positioned at the circumference of a virtual circle with a diameter of 7 mm at the centre of the connector. Depending on the layout, the angle between the pins is 45°, 60°, 72° or 90°. Below is the layout and the pin numbering of each DIN connector variant, when looking into the socket.





Layout
DIN 41524
Pins
3
Angle
180°
Distance
90°
Name
DIN 3/180°
   

Pins
4
Angle
216°
Distance
72°
Name
DIN 5/216°
   

Pins
5
Angle
180°
Distance
45°
Name
DIN 5/180°
   

Pins
5
Angle
360°
Distance
90°
Name
DIN 5/360°
Nickname
Domino, Dice
   


Pins
8
Angle
262°
Distance
45°
Name
DIN 8/262°
Nickname
Horseshoe
Remark
Non-standard pin numbering
   

DIN 45322

Pins
5
Angle
240°
Distance
60°
Name
DIN 5/240°
   


Pins
6
Angle
240°
Distance
60°
Name
DIN 6/240°
   

DIN 45329

Pins
7
Angle
270°
Distance
45°
Name
DIN 7/270°
   

DIN 41526

Pins
8
Angle
270°
Distance
45°
Name
DIN 8/270°
   



Audio
Amplifier mono
  1. Out
  2. Ground
  3. In
Amplifier stereo
  1. Out L
  2. Ground
  3. In L
  4. Out R
  5. In R
Recorder mono
  1. In
  2. Ground
  3. Out
Recorder stereo
  1. In L
  2. Ground
  3. Out L
  4. In R
  5. Out R
Headphones
A special version of the 5-pin DIN connector was endorsed by Philips for the connection of headphones. The pins are arranged in a symmetric layout and the pins are cross-connected for the left and right speakers of the headphones. This connector is also known as domino, dice, würfel and dobbelsteen, as it resembles the number '5' on a dice or a dominoes piece.

  1. not connected
  2. L (-)
  3. R (-)
  4. L (+)
  5. R (+)
    5-pin DIN 360° domino (dice) female socket
A special version of the socket has a key notch at both sides, allowing the plug to be reversed without swapping the channels. In some equipment, the socket contains a switch that disables the regular speakers when the headphones are inserted. This switch is not engaged when the plug is reversed, as the metal shield of the plug had a cut-out at that position.

The image on the right shows the special variant of the (female) socket, which has two key notches, whereas the plug has only one. The red arrow indicates the position of the (optional) cut-out in the metal shield of the (male) plug.   
5-pin DIN 360° domino (dice) female socket


Keyboard
PC   Type 1
This plug was used as keyboard connector on the original IBM Personal Computer (PC), also known as Type 1. It uses the following data format: 2 start bits, 8 data bits, make/break bit (keydown/keyup)and 1 stop bit. The keyboard reset works by connecting pin 3 to ground.

  1. CLK
  2. DATA
  3. Reset (-)
  4. GND
  5. +5V
PC/XT   Type 2
This connector was used on the IBM PC/XT, the successor to the PC, also known as Type 2. It uses the following data format: 2 start bits, 8 data bits, make/break bit (keydown/keyup) and 1 stop bit. The keyboard reset works via a sequence on the DATA and CLK lines.

  1. CLK
  2. DATA
  3. not connected
  4. GND
  5. +5V
PC/AT
This layout was used on the IBM PC/AT, the successor to the XT. It uses the following data format: 1 start bit, 8 data bits, 1 parity bit (odd) and 1 stop bit. The keyboard reset works via a command string. Note that later PS/2 models had a 6-pin mini-DIN connector for this.


Stage lighting control
There are two standards for using 8-pin 270° connector for stage lighting control equipment — Pulsar and Strand — with the latter being the more common one used by other manufacturers. Do not interconnect equipment from these two manufacturers. Voltages are between 0 and 10V.

Pulsar
  1. Low Voltge Supply
  2. GND (0V)
  3. Channel 1
  4. Channel 2
  5. Channel 3
  6. Channel 4
  7. Channel 5
  8. Channel 6
Strand
  1. Channel 1
  2. Channel 2
  3. Channel 3
  4. Channel 4
  5. Channel 5
  6. Channel 6
  7. Low Voltge Supply
  8. GND (0V)


Commodore 64 computer
Video
  1. Luminance (Y)
  2. GND
  3. Audio out
  4. Composite video (CVBS)
  5. Audio in
  6. Chrominance (C)
  7. not connected
  8. +5V 1
  1. Not connected in the first two revisions of the C-64 which used a 5-pin DIN 180°.

Serial port
  • SRQ
  • GND
  • ATN (attention)
  • Clock
  • Data
  • Reset
Power
  • GND (0V)
  • GND (0V)
  • GND (0V)
  • GND (0V)
  • 5V DC (or not connected)
  • 5V DC
  • 9V AC
  • 9V AC


Documentation
  1. DIN female receptacle specifications
    Amphenol Tuchel Industrial GmbH, 13 January 2016.

  2. DIN male receptacle specifications
    Amphenol Tuchel Industrial GmbH, 3 November 2020.
References
  1. Wikipedia, DIN connector
    Retrieved April 2021.

  2. Wikipedia, IBM PC keyboard
    Retrieved April 2021.
Further information
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© Crypto Museum. Created: Thursday 01 April 2021. Last changed: Monday, 13 February 2023 - 08:08 CET.
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