ComNet Releases Link Guardian Unidirectional Media Converter

The new unidirectional media converter is said to prevent cybersecurity attacks from an unsecured entry point on the network.

DANBURY, Conn. — ComNet, a manufacturer of fiber optic transmission and networking equipment, is expanding its line of cybersecurity products by adding to its line of intelligent media converters.

These intelligent media converters with Link Guardian create a physical layer of protection that limits network traffic to one-way communication between the source and destination networks.

The new ComNet CNGEUMC4+2(TX, RX)/M is designed to prevent cybersecurity attacks by limiting data flow to one direction between a secured and unsecured network. How the devices are deployed will determine which direction the data will flow.

Called a unidirectional media converter, this physical security device is said  to be more effective than software-enabled network firewalls. The data connection is un-hackable and invulnerable to malware, according to the announcement.

The ComNet CNGEMUMC4+2(TX, RX)/M is a hardened four-port all-gigabit intelligent media converter. The product is designed to provide deterministic data transfer in only one direction (unidirectional), to segment and protect networks, devices, and other digital assets (databases, historians, SCADA, PLCs, DCS, etc.) from external cyber threats.

It has four 10/100/1000Base-T(X) copper ports and two 1000Base-FX SFP ports. It effectively only allows data to travel in one direction. The CNGEMUMC4+2(TX, RX)/M provides exclusive functionality for easy field deployment including DIP switch-based operation of RSFP (redundant SFP) for creating redundant fiber connections.

“Media converters are generally simple to use. The primary purpose is as a distance extending device, but they can also be used as an entry point to a network,” explains Andrew Acquarulo Jr., ComNet CEO and president. “By adding features such as Link Guardian, we are offering our customers another way of making their network more reliable and secure from unauthorized access. This keeps us front and center in terms of innovation.”

The company says these features give them a more competitive position in the market and allows ComNet to be unique and differentiate the product line.

“Making any network operate more efficiently and effectively is another way of how ComNet moves the market. Cybersecurity/unauthorized access is a monumental concern for all security networks,” says Skip Haight, ComNet vice president of marketing. “By leading with our advanced technology, such as Link Guardian, we position ComNet and our solutions as the company to turn for ‘new and better’ transmission options. Our position is that if you are concerned about the long-term success of your application, choosing ComNet ensures it will be.”

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