+---------------+ | USB Port | +---------------+ | | v +---------------+ | FTDI Chip | | (FT232RL) | +---------------+ | | v +---------------+ | Voltage | | Regulator | +---------------+ | | v +---------------+ | Interface | | Circuit | +---------------+ | | v +---------------+ | Radio | | Interface | +---------------+
Below is a textual representation of the for a proven CI-V USB interface. Component values are typical for 9600–19200 baud operation (some radios support 38400 or 19200 baud; adjust accordingly). icom ci v usb interface schematic top
At its heart, the CI-V bus is a .
Thus, on both the receive and transmit paths. +---------------+ | USB Port | +---------------+ | |
: High-end designs may include opto-isolators to prevent ground loops between the computer and the radio. adjust accordingly). At its heart