For radio models: Icom with 8-pin mic connector
Wiring Diagrams Index | Ham Radio Articles Home Page
Manufacturers have been known to change their usage of pins, please compare diagrams shown with the product's manual. Pins not shown may be used for other functions. Damage may occur if wrong connections are made.
Pins are labeled with the number of the pin, followed by the descriptive name used in Chapter 5 of What is your TNC doing?
Icom
Pin 1 - Transmit Signal
Pin 5 - PTT
Pin 6 - Ground
Pin 8 (some models) - Receive Signal (not wired if speaker plug is used)
3.5 mm mono plug (to speaker jack)
Tip of plug - Receive Signal
Sleeve of plug - Ground
Wiring Diagrams Index | Ham Radio Articles Home Page
73 de ka5ztx gmedcalf@prairie.lakes.com | copyright 1995 gloria e medcalf
URL: http://prairie.lakes.com/~medcalf/ztx/wire/i8pin.html