• 
  • Arduino
  • Microcontrollers
  • >Audio
    • Amplifiers
    • Preamplifier
    • Equaliser
  • FM transmitters, Bugs
  • Auto Electronics
  • Computer Electronics
  • Guard and Security
  • Electronic devices for home
  • Power Supply, Charger
  • Measured Circuits
  • Electronic games
  • RF Circuits
  • Infrared circuits
  • Telephones Circuits
  • Mobile Phone
  • Science
  • Pinouts
  • Beginner
• 
• 
• 

Category: Main page Computer

Macintosh Keyboard

pinout

This connector is present on the Macintosh 128K, 512K, 512K enhanced, and Macintosh Plus.

4 pin RJ11 female connector  at the computer

Pin Name Dir Description 1 CGND Chassis ground 2 KBD1 ? Keyboard clock (input to VIA) 3 KBD2 ? Serial data line 4 +5V +5 VDC Note: Direction is Computer relative Keyboard.

4 pin RJ11 male connector  at the keyboard

Source:www.pinouts.ru