Icom Ci V — Usb Interface Schematic Top
Icom CI-V USB interface
An acts as a bridge between a modern computer's USB port and the TTL-level serial bus used by Icom transceivers for remote control. While commercial versions can be expensive, a DIY interface is highly effective and can be built using standard USB-to-UART components. Core Interface Features
Logic Buffers
: Some designs use a hex buffer (e.g., 7417 or 4049) to isolate and combine signals for better stability. icom ci v usb interface schematic top
- TXD (output from computer)
- RXD (input to computer)
- DTR/RTS optional for power or reset.
pins of the UART chip must be tied together to interface with the single-wire CI-V bus. Icom CI-V USB interface An acts as a