ADC Telecommunications and SeaChange International Demonstrate Integrated Program Transport/Distribution Solution at CABLE-TEC EXPO `99.

MINNEAPOLIS--(BUSINESS WIRE)--May 25, 1999--

Demonstration will transport SeaChange Video On Demand Content over ADC's DV6000 Fiber Optic Transport System, maximizing channel capacity and fiber efficiency for VOD deployment

ADC Telecommunications, Inc. (Nasdaq:ADCT; www.adc.com) and SeaChange International Inc. (Nasdaq: SEAC), a leading provider of MPEG-2 digital video systems for television, today announced an integrated technology demonstration of SeaChange's Interactive Television (ITV) System transporting video over ADC's DV6000 fiber-optic system. The demonstration will be conducted between the SeaChange and ADC booths (No.1254 and No.484 respectively) at Cable-Tec Expo '99 this week in Orlando, Fla.

The demonstration consists of transporting multiple compressed video streams over a single DVB-ASI (Digital Video Broadcast - Asynchronous Serial Interface), transported over fiber from the SeaChange exhibit across the Orlando Convention Center. At the receiving end in the ADC booth, a DV6000 receiver converts the optical signal back to an electrical DVB-ASI form where a particular MPEG-2 video stream is selected and decoded for viewing. The technique underscores the efficiency and capacity of transporting a large number of multiplexed 3-4Mbps MPEG-2 video streams over a 270Mbps digital channel through a fiber-optic backbone. The DVB-ASI interface, together with the scaleable, multichannel capacity of the DV6000 system, allows for the carriage of a vast number of video channels.

"The ability to transport multiple MPEG-2 video streams from a central head-end server to hub sites over a standard DVB-ASI / fiber transport interface brings the $15 billion - video on demand market that much closer to economic reality and full scale deployment," said Yvette Gordon, director of interactive technologies for SeaChange International. "This technology demonstration between ADC and SeaChange represents a true end-to-end VOD system which includes VOD software, servers, digital network integration, and video long distance transport options."

"As a leading supplier of fiber-optic transport systems, ADC is extremely excited to be a part of this technology demonstration," said Michael Coden, vice president of marketing for ADC's Broadband Communications Division. "With our significant installed base of DV6000 systems throughout the cable marketplace, MSO's can now realize efficient, standardized transport of MPEG-2 video content through the open-standard DVB-ASI interface, allowing connectivity to a wide variety of multi-vendor equipment such as SeaChange servers."

The DV6000 from ADC Telecommunications is a 2.4 gigabits per second (Gbps) fiber-optic transmission system that supports the carriage of video, audio, data and telephony signals through a diverse mix of encoder & decoder interfaces. Its flexible and modular architecture allows for a multitude of network configurations and formats, all of which can be quickly modified to meet constantly evolving needs. With the addition of the DVB-ASI interface, the DV6000 continues to offer the widest choice of video interfaces available in today's fiber optic transmission market, providing a standardized means to interconnect MPEG-2 content from multiple components such as video servers, encoders, modulators, receivers and multiplexers.

SeaChange's ITV (Interactive Television) System is a comprehensive VOD system based on the company's proven MediaCluster server architecture and ITV Command Center-based software suite, enabling highly automated ITV operation and end-to-end fault-tolerance. The server is scalable to support headend or cable hub installation, thereby reducing the network bandwidth required for delivering high-quality long-form digital video files. It comprises cable headend software components for automated management of video and data content, video streams, subscriber requests and billing. Cable operators such as Time Warner and Rogers Cablesystems have selected the system for testing in preparation for residential deployment of VOD services.

About SeaChange International

Serving approximately 20,000 television channels for broadcast and cable television companies worldwide, SeaChange International, Inc. ( www.schange.com) is the leading provider of MPEG-2 digital video systems. SeaChange's products, incorporating the Company's patented software and hardware technologies, automate the management and distribution of video streams including advertisements, movies, news updates and other broadcast-quality video programming requiring precise execution. Founded in 1993, SeaChange is headquartered in Maynard, Massachusetts.

About ADC Telecommunications

ADC Telecommunications, Inc. (Nasdaq: ADCT) is a leading global supplier of voice, video and data systems for telephone, cable television, Internet, broadcast, wireless and private communications networks. ADC's systems and solutions enable local access and high-speed transmission of communications services from providers to consumers and businesses over fiber-optic, copper, coaxial and wireless media. Headquartered in Minneapolis, Minnesota, ADC has approximately 9,600 employees around the world and annual sales of $1.5 billion. For additional information, visit the Web site at www.adc.com.