Icom Ci V Usb Interface Schematic Top Fixed -

+5V (From USB) │ ├──────────┐ ▼ │ ┌───────┐ [R1] 4.7kΩ │ │ │ │ FTDI │ ├───────────────● Data (Tip) ──► To Radio │FT232RL│ │ │ (3.5mm Jack) │ │ │ D1 1N4148 │ │ TXD ├──────┼─────►|────────┤ │ │ │ │ │ RXD ├──────┴───────────────┘ │ │ │ GND ├─────────────────────────────────────► GND (Sleeve) └───────┘ Circuit Operation Explained

: A USB Type-B or Micro-USB jack connects to the host computer. USB-to-Serial Chip : The (or similar chips like the

This circuit uses a dedicated USB-to-UART bridge IC, followed by optocouplers to completely isolate the computer's electrical ground from the radio's ground. Component List icom ci v usb interface schematic top

Open your radio control software and configure the following parameters: Select the newly assigned virtual COM port.

Unlike standard RS-232 or TTL serial which uses separate Transmit (TX) and Receive (RX) lines, CI-V combines TX and RX onto a single bi-directional line. Unlike standard RS-232 or TTL serial which uses

If you do not want to solder surface-mount ICs like the FT232RL, buy a cheap . Connect the board's GND to the 3.5mm jack Sleeve .

What are you building this interface for? What are you building this interface for

The Icom CI-V USB interface serves as a bridge between a computer's USB port and the single-wire, bidirectional CI-V (Computer Interface 5) bus used by Icom transceivers for rig control. Core Schematic Components

: The standard physical connection for the radio end of the cable. Top Schematics & Design Options CI-V interface - Tučňák Wiki Tucnak - Nagano.cz Easy to make CI-V cable www.maniaradio.it Simple Icom CI-V Interface Yet Another ICOM CI-V Interface circuit | Next Electronics Next.gr Electronics Icom CI-V Interfaces and CT-17 Replacement – VK4AMG

A very specific topic!