Circuit Design, Inc. List of Products and Services

The KST2.4W and KSR2.4/KSR2.4RY are products born from customer requests. Our customers often use them for industrial applications, so we have enhanced their waterproofing and robustness to suit industrial use, and ensured reliability in communication by supporting a Hamming distance of 6. Additionally, a buzzer sounds according to the button pressed, and the link status can be confirmed via an LED. To allow multiple systems to operate in the same area, we have adopted our unique frequency hopping technology, enabling simultaneous operation of over 10 sets. The control units are compatible with 9V, 12V, and 24V systems, and the communication range is approximately 100 meters in line of sight. The product has obtained the Technical Compliance Mark and can be used without any licensing procedures. The term "light industry" is named with the assumption that it can be used in somewhat harsh environments as a general-purpose industrial product, targeting civil engineering, construction, vehicles, welfare, agriculture, and more. It is intended for applications requiring continuous control, such as operating a motor while a button is pressed. Wireless remote controls: KST2.4W-2 (2 buttons), KST2.4W-3 (3 buttons), KST2.4W-4 (4 buttons) Input unit: KST2.4S Control units (receivers): KSR2.4, KSR2.4RY (relay type)

The 2.4GHz wireless remote control system NT-4 and NR-1 is a wireless device compliant with the ARIB standard STD-T66 "Second Generation Low Power Data Communication System." Since it has the Technical Compliance Mark, there is no need for customers to apply for a license. The remote control NT-4 is a compact button type that can be used with a lithium battery CR2032 (1 piece). It supports 3-contact, 4-contact, and 6-contact configurations, allowing you to choose from four types. The output unit NR-1 supports 6 channels of contact output. The output is a photo MOSFET output, which can directly drive a relay. Additionally, the output operation mode can be selected from three modes according to the application. The communication distance is approximately 100m under line-of-sight conditions. The link status can be confirmed via an LED. While the button on the remote control is pressed, continuous output can be generated from the NR-1. It adopts a unique frequency hopping (FH) method, eliminating the concept of frequency channels, allowing multiple systems to operate simultaneously in the same area, such as a distribution center. Wireless remote controls: NT-4-S3 (3 contacts), NT-4-S4, NT-4-D4 (4 contacts), NT-4-D6 (6 contacts) Wireless module: NT-4M (4 contacts) Controller: NR-1

MU3-IN8 and MU3-OUT8 are 8-point input/output boards equipped with the specific low-power wireless module MU-3 (429MHz band / 1216MHz band). They continuously transmit contact information using the MU-3 designed for industrial applications, enabling continuous contact control as required in telecontrol and factory automation. The input uses photo couplers, and the output uses photo MOS relays, allowing for high isolation and connection to high-capacity loads. Additionally, the input and output are connected via terminal blocks, making wiring easy. Not only can the boards communicate with each other, but they can also be controlled from a PC. When controlled from a PC, communication through a relay station and control of multiple boards is also possible. You can choose between the 429MHz band and the 1216MHz band as needed. 429MHz band Input board: MU3-IN8-429 Output board: MU3-OUT8-429 1216MHz band Input board: MU3-IN8-1216 Output board: MU3-OUT8-1216

The "KST2.4W-2" is a small power wireless remote control with two contacts that can be used immediately without a license in the 2.4GHz band, featuring a technical compliance mark. It allows for safe and easy remote operation of wing vehicle openings and closings, loader slides, winch lifting, and more. Additionally, it can be used for lifting and lowering in welfare vehicles. Being wireless, it enables safe operation while confirming the surrounding situation when getting in and out of the vehicle. It also features dustproof and waterproof specifications, with button sizes (12mm in diameter) that are easy to press even while wearing gloves, making it reliable for use on construction sites or in rainy conditions. Thanks to its unique frequency hopping protocol, it minimizes radio interference even when multiple sets are used simultaneously, ensuring stable communication. It also has a LINK output display, allowing constant monitoring of the communication status between the remote control and the control device. 【Features】 - Unique hopping technology minimizes radio interference. - Operable from a distance, with a range of approximately 100m (line of sight). - Stable operation for up to 150 hours with two AA batteries. - Dustproof and waterproof performance equivalent to IP55, making it suitable for outdoor use. *You can purchase directly from the related link. Orders starting from one unit are also welcome!

The "KST2.4W-3" is a three-point waterproof remote control that does not require a radio station license with a technical compliance mark in the 2.4GHz band. Designed for "light industry" applications, it can easily achieve wireless functionality even in harsh environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, it allows simultaneous control of multiple systems within the same area without the need to be aware of the wireless frequency channels. Additionally, it is equipped with a LINK output display, enabling constant monitoring of the communication status between the operator and the controller. 【Features】 ■ Complies with ARIB STD-T66 second generation low-power data communication system ■ Communication distance is approximately 100m in line of sight ■ Uses two AA batteries for a continuous operation of 150 hours ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KST2.4W-4" is a waterproof remote control with 4 contacts that does not require a radio station license with a technical conformity mark in the 2.4GHz band. Designed for "light industry" applications, it can easily achieve wireless functionality even in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, it allows simultaneous control of multiple systems within the same area without the need to be aware of the wireless frequency channels. Additionally, it features a LINK output display, enabling constant monitoring of the communication status between the operator and the control unit. 【Features】 ■ Complies with ARIB STD-T66 second generation low power data communication system ■ Communication distance is approximately 100m in line of sight ■ Uses two AA batteries for a continuous operation of 150 hours ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KST2.4S" is an input unit that allows for 6 contact inputs without the need for a radio station license with a technical compliance mark in the 2.4GHz band. Designed for "light industrial" applications, it enables easy wireless implementation even in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, multiple systems can be simultaneously controlled within the same area without needing to be aware of the wireless frequency channels. Additionally, it features a LINK output display, allowing for constant monitoring of the communication status between the operator and the control unit. 【Features】 ■ Compliant with ARIB STD-T66 second-generation low-power data communication system ■ Communication distance of approximately 100m in line of sight ■ Up to 6 contact inputs ■ Communication status can be checked via LINK indicator ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KSR2.4RY" is an output unit that can output 1 to 4 contact points without the need for a radio station license with a technical conformity mark in the 2.4GHz band. Designed for "light industry" applications, it can easily achieve wireless communication even in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, multiple systems can be controlled simultaneously within the same area without being aware of the wireless frequency channels. Additionally, it is equipped with a LINK output indicator, allowing for constant monitoring of the communication status between the operation device and the control device. It supports output of contact information for up to 4 systems and is equipped with a relay, enabling direct control of solenoids and other devices (inductive load up to 2A). 【Features】 ■ Compliant with ARIB STD-T66 second-generation low-power data communication system ■ Equipped with a relay for inductive loads up to 2A ■ Communication distance is approximately 100m in line of sight ■ Communication status can be confirmed via LINK indicator ■ Achieves a Hamming distance of 6 to ensure safety It can be used in combination with KST2.4W-2, KST2.4W-3, KST2.4W-4, and KST2.4S. *For more details, please refer to the related links or feel free to contact us.

The "KSR2.4" is an output unit capable of 1 to 6 contact outputs that does not require a wireless station license and comes with a technical compliance mark. Designed for "light industry" applications, it can easily achieve wireless communication even in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, multiple systems can be controlled simultaneously within the same area without being aware of the wireless frequency channels. Additionally, it features a LINK output indicator that allows for constant monitoring of the communication status between the operation device and the control device. 【Features】 ■ Compliant with ARIB STD-T66 second generation low-power data communication system ■ Communication distance is approximately 100m in line of sight ■ Communication status can be confirmed via LINK indicator ■ Achieves a Hamming distance of 6 for safety assurance It can be used in combination with KST2.4W-2, KST2.4W-3, KST2.4W-4, and KST2.4S. *For more details, please refer to the related links or feel free to contact us.

The NK-2.4Y is a 2.4GHz band 8-point input/output wireless module for embedded equipment. This wireless device can be used as either an operator or a controller. It supports up to 8 input channels or 8 output channels. The NK-2.4Y reduces communication interference from other wireless devices operating in the 2.4GHz band by enabling bidirectional communication through frequency hopping between the operator and the controller. It also achieves a Hamming distance of 6, ensuring error-free operation and reliability for controlling industrial equipment. The communication mode is 1:1, and the communication range is approximately 100 meters under line-of-sight conditions. It can also be used in combination with the light industrial remote control KS*2.4 series. 【Features】 ■ Compliant with ARIB STD-T66 Second Generation Low Power Data Communication System ■ Allows control of up to 8 points by connecting simple peripheral circuits ■ Communication distance is approximately 100 meters under line-of-sight ■ Multiple operations possible without being aware of frequency channels due to frequency hopping ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The 2.4GHz wireless remote control NT-4-S3 is a wireless device compliant with the standard "ARIB STD-T66 Second Generation Low Power Data Communication System." It has a technical conformity mark, so no license application is required from the customer. It is a compact button-type remote that operates with a lithium battery CR2032 (1 piece). The estimated communication distance is approximately 100m under line-of-sight conditions. Since it uses the 2.4GHz frequency band, continuous transmission is possible, and by adopting frequency hopping (FH) transmission method, it reduces communication disruptions caused by interference and crosstalk from other wireless devices using the 2.4GHz band. This method does not have the concept of frequency channels, allowing multiple systems to operate simultaneously in the same area, such as a distribution center, while maintaining continuous communication. 【Features】 ■ Compliant with ARIB STD-T66 Second Generation Low Power Data Communication System ■ Communication status confirmation function via LED display ■ Communication distance of approximately 100m under line-of-sight ■ Remote control operates with a lithium battery CR2032 (1 piece) ■ Multiple operations possible without being aware of frequency channels due to frequency hopping *For more details, please refer to the related links or feel free to contact us.

The 2.4GHz wireless remote control NT-4-S4 is a wireless device compliant with the standard "ARIB STD-T66 Second Generation Low Power Data Communication System." It has a technical compliance mark, so no license application is required from customers. It is a compact button type and can be used with a lithium battery CR2032 (1 piece). The estimated communication distance is about 100 meters under line-of-sight conditions. Since it uses the 2.4GHz frequency band, continuous transmission is possible, and by adopting frequency hopping (FH) transmission method, it reduces communication interference and disruption from other wireless devices using the 2.4GHz band. This method does not have the concept of frequency channels, allowing for simultaneous operation of multiple systems in the same area, such as distribution centers, while maintaining continuous communication. 【Features】 ■ Compliant with ARIB STD-T66 Second Generation Low Power Data Communication System ■ Communication status confirmation function via LED display ■ Communication distance of approximately 100 meters under line-of-sight ■ Remote control operates with a lithium battery CR2032 (1 piece) ■ Multiple operations possible without being aware of frequency channels due to frequency hopping *For more details, please refer to the related links or feel free to contact us.

The 2.4GHz wireless remote control NT-4-D4 is a wireless device compliant with the standard "ARIB STD-T66 Second Generation Low Power Data Communication System." It has a technical conformity mark, so there is no need for customers to apply for a license. It is a compact button-type remote that can be used with a lithium battery CR2032 (1 piece). The estimated communication distance is approximately 100 meters under line-of-sight conditions. Since it uses the 2.4GHz frequency band, continuous transmission is possible, and by adopting frequency hopping (FH) transmission method, it reduces communication interference and disruption from other wireless devices using the 2.4GHz band. This method does not have the concept of frequency channels, allowing for simultaneous operation of multiple systems in the same area, such as distribution centers, while maintaining continuous communication. 【Features】 ■ Compliant with ARIB STD-T66 Second Generation Low Power Data Communication System ■ Communication status confirmation function via LED display ■ Communication distance of approximately 100 meters under line-of-sight ■ Remote control operates with a lithium battery CR2032 (1 piece) ■ Multiple operations possible without being aware of frequency channels due to frequency hopping *For more details, please refer to the related links or feel free to contact us.

The 2.4GHz wireless remote control NT-4-D6 is a wireless device compliant with the standard "ARIB STD-T66 Second Generation Low Power Data Communication System." Since it has a technical conformity mark, there is no need for customers to apply for a license. It is a compact button-type remote that can be powered by a single CR2032 lithium battery. The estimated communication distance is approximately 100 meters under line-of-sight conditions. Because it uses the 2.4GHz frequency band, continuous transmission is possible, and by adopting frequency hopping (FH) transmission method, it reduces communication interference and disruption from other wireless devices using the 2.4GHz band. This method does not have the concept of frequency channels, allowing for simultaneous operation of multiple systems in the same area, such as distribution centers, while maintaining continuous communication. 【Features】 ■ Compliant with ARIB STD-T66 Second Generation Low Power Data Communication System ■ Communication status confirmation function with LED display ■ Communication distance of approximately 100 meters under line-of-sight ■ Remote control operates on a single CR2032 lithium battery ■ Multiple operations possible without being aware of frequency channels due to frequency hopping *For more details, please refer to the related links or feel free to contact us.

The 2.4GHz remote control system output unit NR-1 is a wireless device compliant with the standard "ARIB STD-T66 Second Generation Low Power Data Communication System." It has a technical conformity mark, so no license application is required from the customer. It supports six contact outputs. The output is a photo MOSFET output, which can directly drive relays while maintaining high isolation. The output operation mode can be selected from three modes according to the application. The communication distance is approximately 100 meters under line-of-sight conditions. It can be used in combination with NT-4 or NT-4M. 【Features】 ■ Compliant with ARIB STD-T66 Second Generation Low Power Data Communication System ■ Communication status confirmation function with LED display at hand ■ Communication distance of approximately 100 meters under line-of-sight conditions ■ Multiple operations possible without being aware of frequency channels due to frequency hopping *For more details, please refer to the related links or feel free to contact us.

The 2.4GHz band 4-point input wireless module NT-4M is a wireless device compliant with the standard "ARIB STD-T66 Second Generation Low Power Data Communication System." Since it has a technical conformity mark, there is no need for customers to apply for a license. The estimated communication distance is approximately 100 meters under line-of-sight conditions. Because it uses the 2.4GHz band frequency, continuous transmission is possible, and by adopting frequency hopping (FH) transmission method, it reduces communication disruptions caused by interference or crosstalk from other wireless devices using the 2.4GHz band. This method does not have the concept of frequency channels, allowing multiple systems to operate simultaneously in the same area, such as a distribution center, while maintaining continuous communication. 【Features】 ■ Compliant with ARIB STD-T66 Second Generation Low Power Data Communication System ■ Communication status confirmation function ■ Communication distance of approximately 100m under line-of-sight ■ Multiple operations possible without being aware of frequency channels due to frequency hopping *For more details, please refer to the related links or feel free to contact us.

The MU3-IN8-429 is an 8-channel input board equipped with the specific low-power wireless module MU-3-429. It continuously transmits contact information via the MU-3-429, making it suitable for continuous contact control required in telecontrol applications. The inputs are composed of photo couplers, allowing for high isolation and connection to high-capacity loads. Additionally, the inputs are configured with terminal blocks, enabling easy embedded wiring. The MU3-IN8-429 can not only communicate between boards but also read contact information from a PC or CPU using the MU-3-429. When controlling from a PC, relay functionality can be utilized, allowing for the collection of contact information from locations several kilometers away. The relay station for the MU-3-429 operates solely with initial device setup and power supply. To operate, pairing settings between the MU3-IN8-429 and MU3-OUT8-429 must be configured initially. This wireless device allows the antenna to be installed in a location with good radio wave conditions using an extension cable. 【Features】 ■ Continuous communication of 8 contact information ■ Easy embedded wiring via terminal blocks ■ High isolation with photo couplers

The MU3-OUT8-429 is an 8-point output board equipped with the specific low-power wireless module MU-3-429. It continuously transmits contact information via the MU-3-429, making it suitable for continuous contact control required in telecontrol applications. The output is composed of photo MOS relays, allowing for high isolation and the connection of high-capacity loads. Additionally, the output is on a terminal block, making it easy to wire for integration. The MU3-OUT8-429 can control contact information from a PC or CPU using the MU-3-429, not just for communication between boards. When controlling from a PC, a relay function can also be utilized, enabling control of contact information from locations several kilometers away. The relay station for the MU-3-429 operates solely with the initial setup of the device and power supply. To operate, pairing settings between the MU3-IN8-429 and MU3-OUT8-429 are required initially. This wireless device allows the antenna to be installed in a location with a good radio wave environment using an extension cable. 【Features】 ■ Continuous communication of 8 contact information ■ Easy wiring integration via terminal block ■ High isolation with photo MOS relays

The MU3-IN8-1216 is an 8-point input board equipped with the specific low-power wireless module MU-3-1216. It continuously transmits contact information via the MU-3-1216, making it suitable for continuous contact control required in telecontrol applications. The inputs are configured with optocouplers, allowing for high isolation and connection of high-capacity loads. Additionally, the 1216MHz IN8/OUT8 board has a faster response time compared to the 429MHz version. The inputs are connected via terminal blocks, making it easy to integrate wiring. The MU3-IN8-1216 can not only communicate between boards but also read contact information from a PC or CPU using the MU-3-1216. When controlling from a PC, relay functionality can be utilized, allowing for the collection of contact information from locations several kilometers away. The relay station operates with only the initial setup of the MU-3-1216 and power supply. To operate, pairing settings between the MU3-IN8-1216 and MU3-OUT8-1216 are required initially. 【Features】 ■ Continuous communication of 8 contact information ■ Easy integration wiring via terminal blocks ■ High isolation with optocouplers

The MU-3-1216 transmits contact information continuously, making it suitable for continuous contact control required by telecontrol systems. The output is composed of photo MOS relays, enabling high isolation and connection to high-capacity loads. At 1216MHz, the response time is faster compared to 429MHz. The output is on a terminal block, allowing for easy embedded wiring. The MU3-OUT8-1216 can control contact information from a PC or CPU using the MU-3-1216, not just for communication between boards. When controlling from a PC, relay functionality can also be utilized, allowing control of contact information from locations several kilometers away. The relay station of the MU-3-1216 operates solely with initial device setup and power supply. To operate, pairing settings between the MU3-IN8-1216 and MU3-OUT8-1216 are required initially. This radio device allows the antenna to be installed in a location with good radio wave conditions using an extension cable. 【Features】 ■ Continuous communication of 8 contact information ■ Easy embedded wiring via terminal block ■ High isolation with photo MOS relays

The KST2.4W and KSR2.4/KSR2.4RY are wireless remote controls developed in response to customer requests. Our customers often use them for industrial applications, so we have enhanced their waterproofing and robustness to suit industrial use, while ensuring they are easy to hold and maintain a communication reliability with a Hamming distance of 6. A buzzer sounds according to the button pressed, and the link status can be confirmed via an LED. To allow multiple systems to operate in the same area, we have adopted our unique frequency hopping technology, enabling simultaneous operation of over 10 sets. The control units are compatible with 9V, 12V, and 24V systems, with a communication range of approximately 100 meters in line of sight. The product has obtained the Technical Conformity Mark and can be used without any licensing procedures. The term "light industry" is named with the assumption that it can be used in somewhat harsh environments as a general-purpose industrial product. It can be used as a handy remote control in applications such as civil engineering, construction, vehicles, welfare, and agriculture. Continuous control is possible, allowing the motor to operate while the button is pressed. Wireless remote controls: KST2.4W-2 (2 buttons), KST2.4W-3 (3 buttons), KST2.4W-4 (4 buttons) Input unit: KST2.4S Control units: KSR2.4, KSR2.4RY (relay type)

We offer a variety of wireless remote control products tailored to your usage needs. - KST426W/KSR426W-A Usable for ON/OFF switching purposes. Designed to enhance waterproofing and durability for industrial applications. Compatible with 2 to 4 button remotes. - KST2.4W/KSR2.4 Usable for purposes where it is ON while pressed. Designed to enhance waterproofing and durability for industrial applications. Compatible with 2 to 4 button remotes. - WT-01/WT-02/WR-01A Usable for ON/OFF switching purposes. Supports everyday waterproofing and is compatible with 1 or 2 buttons. - NT-4/NR-1 Usable for purposes where it is ON while pressed. Compact remote that can be carried in a pocket. Compatible with 3, 4, or 6 contacts. - RT-3B/RT-4B/RR-1A Usable for ON/OFF switching purposes. Designed for simple remote control applications. Compatible with 3 or 4 buttons. In addition to the above remote control products, we also handle various products compatible with harnesses and terminal blocks for different contact communications. Please feel free to contact us for assistance in selecting models.