MINNEAPOLIS, Minnesota — November 16, 2010—Comtrol Corporation, a leading manufacturer of Industrial device connectivity products, today introduced the RocketLinx ™ ES9528 managed Ethernet switch. The RocketLinx ES9528 is a 28-port fully managed layer 2 Ethernet switch featuring 24 10/100 Base-TX Ethernet ports and four Gigabit/SFP combo ports for high speed uplinks and/or fiber connectivity.

This product is designed specifically for rackmount SCADA and control room applications to act as the centerpiece for a redundant network. Its fanless design and wide operating temperature (-25° to 70° C) also make it ideally suited for industrial applications.

The RocketLinx ES9528 managed Ethernet switch offers a unique mix of value-added features, including:

• 12.8Gbps switch fabric, non-blocking switching performance, 8K MAC address table
• RSTP and advanced ring technology
• Supports jumbo frame up to 9,216bytes
• VLAN, GVRP, QoS, IGMP snooping V1/V2/V3, rate control, port trunking, LACP,
  online multi-port mirroring
• Management via console CLI , Web, SNMP V1/V2c/V3, RMON, HTTPS, SSH and NetVision network management software
• Advanced security feature supports IP security, port security, DHCP server, IP and MAC binding, 802.1x network access control
• Event notification by email, SNMP trap, and syslog

“Comtrol is excited to release the latest in its full line of Industrial-rated, ruggedized switches,” said Bradford Beale, President of Comtrol. “The new RocketLinx ES9528 is in response to our customers’ demand for higher density connectivity solutions. Comtrol has been providing industrial data connectivity for the past three decades and will continue to provide the latest technology at an affordable price.”

About Comtrol Corporation

Comtrol Corporation is an expert network advisor in device connectivity, industrial Ethernet gateways, and intelligent embedded device connectivity products for a wide range of enterprise, industrial, security, power utility, and traffic automation applications. The company’s RocketPort multi‐port serial card, DeviceMaster Ethernet device server, 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 www.comtrol.com.

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