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Comtrol Releases Managed 28-Port NEMA TS2 Certified Switch for Traffic and Industrial-Grade Networks

MINNEAPOLIS, Minnesota — July 11, 2012—Comtrol Corporation, a leading manufacturer of industrial device connectivity products, today announced the release of the RocketLinx ES9528-XT Layer 2 switch to its industrial Ethernet switch product line. The RocketLinx ES9528-XT is a fully managed industrial-grade rack mount switch equipped with 24 10/100BASE-TX Fast Ethernet ports and four Gigabit Ethernet RJ45/SFP combo ports. The four Gigabit combo port design allows 10/100/1000 copper Ethernet connections, and the SFP ports accept Gigabit SFP transceivers, including SX, LS, LHX, ZX and XD, supporting a wide variety of connections and distances. The switch is ideally suited for control rooms and traffic applications where its high port-density, fan less design and extended operating temperature range extend reliability beyond that of common IT-grade switches.

The RocketLinx ES9528-XT features a 1U design and is typically mounted within a 19-inch rack, along with other 19-inch public servers or other network equipment. When lower-tier industrial switches are aggregated to the ES9528-XT, the 24 Fast Ethernet ports and four Gigabit uplink ports allow the connection of up to twelve 100M rings plus two Gigabit rings—enhancing network redundancy. The switch also features a wide -40° to +74°C operating temperature and NEMA TS2 rating, making the switch an ideal solution for use in traffic applications and harsh industrial environments.

“Comtrol developed the new RocketLinx ES9528-XT to assist our customers in the traffic and transportation, security, and energy industries that require a high port density switch capable of operating reliably in extreme conditions,” says Rob Iten, Director of Marketing at Comtrol, “By including a wide array of Gigabit and fiber connections, the ES9528-XT provides our customers with great versatility, while solid-state, fan less design and extended operating temperatures ensure the reliability required for successful deployment in industrial and traffic projects.”

The embedded software supports full Layer 2 management features, multi-form ring redundancy, network control, monitoring, security and event notification. The RocketLinx ES9528-XT provides the perfect foundation for building your industrial Ethernet infrastructure.

About Comtrol Corporation

Comtrol Corporation is an expert device connectivity manufacturer and provider of networking products, specializing in industrial Ethernet gateways and intelligent embedded device connectivity products. These products support a wide range of enterprise, industrial, security, power utility, and traffic automation applications. The company’s RocketPort multi‐port serial cards, DeviceMaster Ethernet device servers, and RocketLinx industrial grade Ethernet and Power over Ethernet switch product lines are sold through regional, national, and international distributors and by thousands of resellers and integrators worldwide. For more information, contact Comtrol Corporation at 800‐926‐6876 or visit

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