Let's protect the data diode one-way communication restriction device "OWCD"!

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One-way communication data diode OWCD

last updated：Sep 26, 2025

Official site

Is Zero Trust okay? It took 349 days to realize we were breached! Can we protect critical infrastructure and production facilities? Simple and clear security "OWCD."

Firewalls, VPNs, gateways, virus check and access authentication software—these vulnerability countermeasures are actually nearly impossible. Maintenance is challenging, and no matter how much zero trust security is claimed to be foolproof, the reality is... According to a certain survey, it takes an average of 349 days to realize that a ransomware attack has occurred; in fact, the breach has already happened. Whether or not actual damage occurs depends on the intruder. The gap between ideal and reality is significant. It is too late to realize that what needs to be protected must be firmly secured. For critical infrastructure, production facilities, IoT data collection, and system operation monitoring SYS-LOG checks, a mechanism that reliably halts communication with the outside is essential. A one-way communication restriction device, "OWCD," which allows communication in only one direction while blocking communication in the opposite direction, is useful. Real-world responses to cyber terrorism and cyber attacks: the pursuit of zero trust integrity is seeing a rapid increase in use cases! We have expanded our lineup with features that have gained much support. We will provide offerings that suit everyone. We will lend evaluation units, so please check for yourself. There is an explanatory video at the related link below! This technology is patented by Mitsubishi Heavy Industries, Ltd.

Related Link - https://power.mhi.com/jp/group/eng/business/produc…

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basic information

The Data Diode is fundamentally based on the principle of connecting a cable in only one direction (unidirectional) from a circuit that is inherently disconnected (with no physical cable). There are no settings for unidirectional communication; it is simply not possible to enter from this point. For more details, please watch the explanatory video on our company website linked below. Using routes that are unnecessary for external intrusion or that cannot exit even if they are accidentally compromised offers a completely different level of safety and security. Gateways and firewalls need to be configured with settings that ensure complete blockage, and maintenance for updates must be carried out promptly as needed. With a Data Diode, since no data, commands, protocols, or packets are allowed to flow, external attacks are physically impossible. Attacks that exploit system vulnerabilities or remote access accounts cannot occur, significantly reducing risks to a level comparable to systems that are isolated from the network. Additionally, there is no need for maintenance personnel, which reduces operational burden and costs. There is an increasing number of cases in critical infrastructure, factories, research institutions, and medical facilities where information is shared and utilized across boundaries without concerns about data leakage. Please contact us via the related link above.

Price information

Expansion of lineup from 100Mbps to 10Gbps models centered around the 1Gbps model Securing communications for government agencies, file transfers Distribution of operational information from OT systems to IT systems Updating customer-provided (display) information from databases to web servers Distribution of information from medical databases to insurance claim receipt systems Information dissemination via email (including predictive and preventive information) Please consult us regarding overseas exports. We will provide guidance on safety standards for the destination country and handling of strategic materials. For inquiries, please contact us through the related links above.

Price range

Delivery Time

Please contact us for details

※This is a made-to-order product. Please contact us via the related link above.

Applications/Examples of results

If it is acceptable to regulate communication in one direction, such as between OT and IT, or IT and the Internet, it can be used anywhere. If you aim for zero trust, you should design to segment. It will be installed at the point where data is sent out from the most critical segment. When publicly disclosing information on the web, simply placing a data diode between the web server and the database in the information dissemination circuit can prevent intrusion into the database. When sending production equipment data to a production management system, it is sufficient to insert it between the PLC and the database. We have many achievements in remote monitoring of thermal power plants (including overseas: in South Korea, Southeast Asia, and Europe). We are also utilizing it for the defense of critical infrastructure, which is important for everyone, including government agencies and public institutions, although I cannot discuss it in detail. It can be easily used in offices that handle a lot of personal information, design firms and engineering offices that deal with intellectual property, and security-conscious departments such as factories and construction companies. We also accept various consultations regarding system construction support and shape modifications for product integration. Please contact us via the related links above.

Detailed information

This is the OWCD G. It is a flagship product of OWCD that supports a communication bandwidth of 1 Gbps. It can be utilized for various needs that require data diodes. It is ideal for applications built by system integrators. Customized models are also available. Please feel free to consult with us.
This is the first product of the data diode "OWCD"【OWCD2】. It is a general-purpose model with a communication bandwidth of 100Mbps. Recently, the amount of communication used by everyone has increased, leading to capacity shortages, but it is still very much in active use for intrusion prevention measures from the Syslog collection route, among other things.
We have started supporting OPC-UA! In industrial networks, we are advancing the utilization of OPC-UA, which promotes: - Diversification and high functionality across the entire production system - Secure communication Together with the OWCD, a physical one-way communication restricted data diode that enables easy and convenient boundary control. We provide measures to protect you!
Data moving between different secure zones that users are aware of is surprisingly file-centric. It is the best-selling item. We focused on that and added a function to collect and deliver files to OWCD. We also perform regular collection and delivery. Please consult us regarding applicable models.
We provide products that not only transmit data using different communication protocols but also have the capability to convert them so that the most suitable communication protocol can be used for both collection and transmission. Additionally, these products can perform data visualization functions such as data collection and display analysis. Please consult us regarding applicable models.