This is the description of an USB to TTL converter for the ICOM CI-V Interface of ICOM ham radios.
The complete adapter consists of the CP2102, USB to TTL serial converter from MICRO SATA Cables and a 1/8″ mono plug for connection to the CI-V interface in the radio.
This converter ships with cable and driver CD for less than $6, the total cost for converter, cable and connector were less than $10.
Datasheet of the CP2102 from MICRO SATA Cables:
USB 2.0 to TTL UART 6PIN Module Serial Converter CP2102
– USB to TTL Serial Converter
– USB to TTL Adapter.
-Use this device to connect your PC to a serial (TTL level) device.
– Uses CP2102 chipset and has a standard 0.1″ pitch terminal strip to connect directly to
UART or I/O pins for easy access to your MCU
– USB specification 2.0 compliant with full-speed 12Mbps.
– Standard USB type A male and TTL 6pin connector.
– 6 pins for 3.3V, RST, TXD, RXD, GND & 5V.
– All handshaking and modem interface signals.
– Baud rates: 300 bps to 1.5 Mbps.
– Byte receive buffer; 640 byte transmit buffer.
– Hardware or X-On/X-Off handshaking supported.
– Event character support Line break transmission.
– USB suspend states supported via SUSPEND pins.
– Supports Windows 98SE, 2000, XP, Vista, Window7, Mac OS 9, Mac OS X & Linux 2.40.
– Size: 42mm X 15mm (approx) .
– Weight: 4g (approx).
– The USB side must be connected to PC or Mac.
– Other USB devices like a digital camera, scanner and printer is not allowed.
Package Includes :
1 X USB to TTL Converter.
1 X Standard 4 pin 0.1″ pitch female to female cable.
1 X Driver CD
As described by Guy Dickinson (Icom CI-V USB/TTL Rig Cable Design Using the FTDI Chipset) the RX and TX pins of the converter are soldered together. The only additional wire needed is GND.
The program for installation of the drivers from the CD ran without problems.
This configuration has been tested successfully with an ICOM 706MKIIG and the Transceiver Control software from DXLab (COMMANDER).
For more information regarding the CI-V interface, data formats, command structure, converters, etc please visit the web page of DF4OR.