Circuit Design, Inc. List of Products and Services

The MU-3-429 is a command control wireless modem that can interface with the UART of a one-chip CPU or the COM port (RS232C) of a computer. It has obtained the Technical Compliance Mark, allowing it to be used without a radio station license or registration. Thanks to its optimized RF circuit, it achieves stable operation over a wide temperature range, long-distance communication, and low voltage/low power consumption. It is equipped with a powerful error correction function using Reed-Solomon coding, enabling the construction of a reliable system. You can select the frequency band according to your application and communication environment. 【Features】 ■ Obtained Technical Compliance Mark (Construction Design Certification) ■ Simple dedicated commands common to the series for serial data transmission ■ Relay function (up to 10 stations) ■ Powerful error correction function

The MU-3-1216 is an intelligent modem capable of command control that operates in the 1216MHz band, which provides a relatively low-noise and clean radio environment. It can be controlled using a common command system shared with other MU series models and is compact in size, similar to the 429MHz band. Depending on the application and communication environment, you can choose the frequency band. Thanks to excellent RF circuit technology, it achieves stable operation over a wide temperature range, long-distance communication, low voltage operation, and low power consumption. 【Features】 ■ Acquired Technical Standard Mark (Construction Design Certification) ■ Simple dedicated commands common to the series for serial data transmission ■ Relay function (up to 10 stations)

The MU-4-429 is an intelligent modem for command control that can interface with one-chip CPU UARTs and computer COM ports (RS232C). It is compatible with the command and protocol of the conventional MU-1(N)-429, MU-2-429, and MU-3-429, allowing for easy integration into systems that use these wireless modems. The MU-4-429 is equipped with powerful error correction capabilities, achieving more stable communication. It is compatible with the pin, command, and air protocol of the MU-2-429, allowing for direct replacement and use. 【Features】 ■ Obtained Technical Conformity Mark (Construction Design Certification) ■ Simple dedicated commands for serial data transmission ■ Compact body (55% of the volume of MU-3-429) ■ Powerful error correction function

MU3-RS2-429 and MU3-RS2-1216 are RS232C interface boards equipped with MU-3. They can be connected to a computer's COM port or RS232C devices. You can choose between the 429MHz band or the 1216MHz band. You can easily check the communication performance of MU-3 in combination with the evaluation program. 【Features】 ■ Equipped with MU-3 ■ Connects to a computer's COM port

The MU3-USB-429 and MU3-USB-1216 are USB interface boards equipped with the MU-3. They use the FTDI FT8U232BM USB-UART conversion chip. The power for the MU3-USB is supplied from the USB interface, so no external power source is required. You can choose between the 429MHz band and the 1216MHz band. You can easily check the communication performance of the MU-3 in combination with the evaluation program. 【Features】 ■ Equipped with MU-3 ■ Power supplied from USB interface ■ Recognized as a virtual COM port

MU4-RS2-429 is an RS232C interface board equipped with MU-4-429. It can be connected to a computer's COM port or RS232C devices. You can easily check the communication performance of the MU-4-429 in combination with the evaluation program. 【Features】 ■ Equipped with MU-4-429 ■ Connects to a computer's COM port

The MU4-USB-429 is a USB interface board equipped with the MU-4-429. It uses the FTDI FT8U232BM USB-UART conversion chip. The power for the MU4-USB-429 is supplied from the USB interface, so no external power source is required. You can easily check the communication performance of the MU-4-429 in combination with the evaluation program. 【Features】 ■ Equipped with MU-4 ■ Power supplied from USB interface