ADC Telecommunications Introduces International Availability of AccessPoint MPEG-2 over ATM Universal Media Access System.

AMSTERDAM, Netherlands--(BUSINESS WIRE)--Sept. 10, 1999--

AccessPoint System Enables Access, Transport and

Switching of Broadcast-Quality Video, CD-Audio and

High-Speed Data over Standards-Based Networks

ADC Telecommunications, Inc. (Nasdaq:ADCT, www. adc.com) today announced international availability of its AccessPoint Universal Media Access System, designed to transport broadcast quality video, audio and data services over public or private ATM, SDH/SONET and PDH switched broadband networks. ADC will display the AccessPoint system at the International Broadcaster's Convention (IBC '99, Stand 739, Hall 11) September 10 - 14, in Amsterdam.

The AccessPoint system allows broadcasters, cable TV operators and private network operators to deliver contribution quality video, audio and data services via standard, broadband ATM networks and offers a viable cost and connectivity alternative to more costly satellite transmission and distribution. The system's MPEG-over-ATM architecture requires less bandwidth to transmit broadcast-quality video, enabling multimedia service providers to offer more cost-effective video services, particularly in point-to-point and point-to-multipoint network environments.

"With AccessPoint, the process of transporting broadcast quality video over public broadband networks is simple, straightforward and efficient," said Mark Podesla, program manager of broadcast markets, ADC Broadband Communications Division. "Prior to AccessPoint, the delivery of video over ATM remained too costly for providers to consider. However, AccessPoint's efficient handling and delivery of MPEG-2 signals over ATM makes the system much more cost effective than satellite transmissions and can actually reduce the provider's operating costs. This system truly makes ATM a viable transmission technology for voice, video and data. "

The AccessPoint system integrates real time MPEG-2 compression/decompression, ATM format adaptation, multiplexing and network termination functions into a single, modular system that supports a variety of network transmission rates, including 34 Mb/s, 45 Mb/s, and 155Mb/s (E3/DS-3, OC-3, STS-3C, STM-1, E4). The system's two rack mountable chassis configurations (2 & 4 RU) support up to seven video channels per ATM network interface card.

Residing at the "edge" of a network, AccessPoint provides MPEG-2 encoding (4:2:2 or 4:2:0) of PAL, NTSC, and SDI video signals (including support of digital video streams in DVB-ASI formats) with compression rates controlled through user-defined coding parameters. Two stereo (or four mono) audio channels per video channel can also be transmitted as either MPEG, uncompressed linear PCM, or AES/EBU audio data streams. Vertical Blanking Interval (VBI) carriage for such services as Teletext, VITS, close captioning, and others is also supported as is the transport of 10/100 Mbps Ethernet, RS-232/422, and E1/T1 data. AccessPoint is also capable of inverse multiplexing operation, for the transmission of high-quality, high-bandwidth video signals over less-costly, lower-speed E1/T1 data lines.

The AccessPoint system also provides unmatched flexibility for system management. Control of the AccessPoint platform is provided by a network management system that connects via inband communications over the ATM network, or through a data access port. Additionally, the ADC Resource Management System (RMS) is also available to allow for automatic time and date activation of user-defined network connections.

Contribution quality applications include remote backhauls, electronic news gathering, master transfers, studio-to-transmitter links, remote/virtual studio control and advertising insertion.

The AccessPoint system is priced based on configuration and is available for shipment worldwide.

ADC Telecommunications, Inc., 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 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 10,100 employees around the world and annual sales of $1.6 billion.

ADC is an S&P 500 company. For additional information, visit our Web site at www.adc.com.

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