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ADC
news release

We
urge investors and stockholders of Broadband Access Systems (BAS) to read ADC's Registration Statement on Form S-4 and the Prospectus/Proxy Statement of ADC and BAS included therein, which the
parties intend to file, if required, with the U.S. Securities and Exchange Commission, relating to the merger transaction described below, if and when they become available, because they will contain
important information. If these and other documents relating to the transaction are filed with the SEC, they may be obtained for free at the SEC's web site at http://www.sec.gov. Investors and
stockholders of BAS may also obtain each of these documents (if and when they become available) for free from ADC or from BAS by directing a request to the investor relations contact persons
identified below.

For
Immediate Release

|Contacts:                                                     |  |                                
|------------------------------------------------------------- |  | -------------------------------
|Mark BormanADC Investor Relations                            |  | Mark KomaneckyBroadband Access
|                                                              |  | Systems                        
|952.946.3338                                                  |  | 508.870.2532                   
|mark_borman@adc.com                                           |  | mark@basystems.com             
|Rob ClarkADC Public Relations
952.914.6355 rob_clark@adc.com |  |                                

ADC to Acquire Broadband Access SystemsA Leader In  Next-Generation Access for Internet and Voice Services over Broadband Networks

Strategic Acquisition Valued at $2.25 Billion Fortifies ADC's Position in  High-Growth Market for Internet-Protocol-Based Service Delivery

MINNEAPOLIS / WESTBOROUGH, Mass.September 20, 2000ADC (Nasdaq: ADCT, www.adc.com), a leading global supplier of fiber optics, network equipment,
software and integration services for broadband, multiservice networks, and
Broadband Access Systems (www.basystems.com), a leading supplier of next-generation, Internet Protocol (IP) access platforms, have reached an agreement
for the acquisition of Broadband Access Systems by ADC.

Broadband
Access Systems' award-winning IP access platform allows communications service providers to deliver high-performance Internet access and IP-based voice services to consumers and businesses.
Communications service providers choose Broadband Access Systems for IP-based delivery solutions to sieze the expected surge in demand for high-speed access services over cable modem and Digital
Subscriber Line (DSL) networks.

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Under
the terms of the stock-for-stock transaction, ADC will issue shares of its common stock having a value of $2.25 billion for all outstanding equity interests in Broadband Access Systems. The
number of shares of ADC's common stock to be issued will be based on an average of the closing price of ADC's common stock for the five trading days prior to closing ("the measurement period"),
subject to a collar
on the value of ADC's common stock of $34.127 to $41.711. The proposed transaction is expected to be completed prior to calendar year-end, and is intended to be accounted for as a pooling of interests
and to be treated as a tax-free reorganization for U.S. federal income tax purposes. Closing of the proposed transaction is subject to the approval of Broadband Access Systems' stockholders, receipt
of required regulatory approvals and other customary conditions. After closing the transaction, ADC expects to take a one-time charge for various acquisition-related expenses the amount of which has
not yet been determined. Assuming that the transaction closes during ADC's fourth fiscal quarter (which ends October 31, 2000) and excluding the one-time charge, ADC expects the acquisition to be
$0.02 dilutive to its earnings per share in the fourth quarter of fiscal year 2000, $0.07 to $0.08 dilutive in fiscal year 2000, $0.05 to 0.06 dilutive in fiscal year 2001 and accretive thereafter,
depending on the value of ADC's stock over the measurement period. The number of shares issued will range from approximately 66 million at the low end of the collar range to approximately 54 million
at the high end of the collar range.

ADC IS STRATEGICALLY POSITIONED FOR IP-BASED SERVICE DELIVERY OVER BROADBAND NETWORKS

"Broadband
Access Systems' products will form the cornerstone of ADC's strategy to offer next-generation, Internet Protocol (IP) systems for the delivery of Internet and voice services over broadband
networks," said Arun Sobti, senior vice president of ADC and president of ADC's Broadband Access and Transport Group. "Clearly, next-generation networks are being built with IP as their foundation.
This acquisition provides ADC and its customers with a carrier-class, high-performance IP platform to successfully deliver broadband communications services. While currently directed at the cable
market, Broadband Access Systems' technologies also have powerful synergies for the delivery of IP-based services over ADC's DSL and wireless platforms. In addition to these key IP technologies,
Broadband Access Systems brings to ADC a highly talented team of employees to accelerate our developments of next-generation IP solutions for broadband communications services."

"We
are excited to join ADC in serving the high-growth market for IP-based services over broadband networks," said Dave Paolino, CEO of Broadband Access Systems. "It has been Broadband Access Systems'
mission since day one to be a leader in the broadband market. Broadband Access Systems' industry-first, carrier-class IP platform and software combined with ADC's leading bundles of fiber optics,
network equipment, software and integration services puts us in a strong position to help communications service providers worldwide reap the full benefits of high-speed Internet access and
high-capacity voice-over-IP telephony services."

THE INDUSTRY'S FIRST TRUE CARRIER-CLASS PLATFORM FOR IP-BASED SERVICE DELIVERY

Incorporated
in February 1998, privately held Broadband Access Systems recognized the need for high-performance, carrier-class broadband access solutions that are scaleable and integrated to maximize
revenue potential for communications service providers. Broadband Access Systems' CudaTM 12000 IP Access Platform is the industry's first highly integrated, carrier-class Cable Modem
Termination System

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(CMTS) to receive DOCSIS (Data Over Cable Service Interface Specification) CableLabs® Qualification. This qualification identifies Broadband Access Systems as one of the true market
leaders in providing reliable, scaleable, next-generation access solutions for IP-based services.

The
Cuda 12000 platform offers the highest DOCSIS performance and capacity of any system in the industry and its powerful distributed architecture supports the intensive quality of service needs of
next-generation IP services based on the DOCSIS 1.1 specification, including IP Cable Telephony. The Cuda 12000 platform aggregates and routes high volumes of data, voice and other IP traffic and will
enable next-generation IP-based services, including support for multiple ISPs (Internet Service Providers) via a common broadband pipe. The Cuda 12000 system is unique in that it also supports
integrated carrier-class media gateway functionality that allows the platform to interconnect IP-based voice calls to existing Class 5 switches and emerging softswitches. Based on Broadband Access
Systems' unique MeshFlowTM architecture, the Cuda 12000 system integrates powerful functionality into a single platform that today can only be achieved through multiple, separate
systems, including a DOCSIS-qualified CMTS, high-performance router, and a carrier-class media gateway supporting voice-over-IP telephony services. In addition, the Cuda 12000 platform is designed to
easily interface with existing and emerging operations support systems. Broadband Access Systems' also provides additional software solutions including:

Since
April 2000, the Cuda 12000 system has been shipping worldwide to customers, including Time Warner, Adelphia, InterTECH, Tele-Media and Utilicom. Broadband Access Systems' has approximately 200
employees.

Broadband
Access Systems' potential has been widely recognized as follows:

About ADC

ADC
is The Broadband Company. ADC's fiber optics, network equipment, software and integration services make broadband communications a reality worldwide by enabling communications service providers to
deliver high-speed Internet, data, video and voice services to consumers and businesses.
ADC (Nasdaq: ADCT) has annual sales of over $2.8 billion and employs more than 20,900 people worldwide. ADC's stock is included in the Standard & Poor's 500 Index and the Nasdaq-100 Index. Learn more
about ADC Telecommunications, Inc. atwww.adc.com.

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About Broadband Access Systems

Named
one of UPSIDE Magazine's 'Hot 100' private companies for 2000, Broadband Access Systems, Inc. is a leading supplier of the first CableLabs® Qualified, next-generation, carrier-class
platform that allows communications service providers to deliver high quality data, voice, and video services to large numbers of users. Founded in 1998 and headquartered in Westborough,
Massachusetts, the company's management team brings years of experience in networking and telecommunications from companies such as Nortel Networks, Lucent, AT&T, FORE Systems, Digital Equipment
Corporation, 3Com, Motorola and Tellabs. Broadband Access Systems is funded by Matrix Partners, North Bridge Venture Partners, The Still River Fund, Norwest Venture Partners, Bowman Capital
Management, Soros Private Equity Partners, Vulcan Ventures, and YAS Broadband Ventures. Additional company information can be found at www.basystems.com.

Conference Call

A
conference call will be held today at 8:30 a.m. Eastern Time to discuss the acquisition. The live conference call number for domestic callers is (800) 865-4460 and for international callers is (973)
633-1010. A replay of the call will be available until September 27, 2000. The replay number for domestic callers is (800) 345-6275 and for international callers is (402) 220-1444.

Cautionary Statement under the Private Securities Litigation Reform Act of 1995

Any
forward-looking statements contained herein reflect management's current expectations or beliefs. ADC Telecommunications cautions readers that future actual results could differ materially from
those in forward-looking statements depending on the outcome of certain factors, including the risks and uncertainties identified in Exhibit 99-a to ADC's Annual Report on Form 10-K for the fiscal
year ended October 31, 1999.

Solicitation of Consents; Interests of Certain Persons in the Merger.

ADC,
Broadband Access Systems (BAS) and their respective directors and executive officers, who may be considered participants in this transaction, and certain other members of management and employees
may be soliciting consents from BAS's stockholders in favor of approval and adoption of the merger agreement.

Additional
information about the officers and directors of ADC can be found in ADC's Proxy Statement for its 2000 Annual Meeting of Shareholders. ADC's filings with the SEC are available to the public
from commercial document-retrieval services and at the Web site maintained by the SEC at http://www.sec.gov.

The
following are the directors and executive officers of BAS:

|Name               |  | Position                                                  
|------------------ |  | ----------------------------------------------------------
|David R. Paolino   |  | President, Chief Executive Officer and Director           
|Abbot L. Gilman    |  | Chief Operating Officer, Treasurer, Secretary and Director
|William J. Stuart  |  | Chief Financial Officer                                   
|Andrew Marcuvitz   |  | Director                                                  
|Edward T. Anderson |  | Director                                                  
|Rouzbeh Yassini    |  | Director                                                  

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The directors and executive officers of BAS have interests in the merger, some of which may differ from, or may be in addition to, those of BAS stockholders generally. Those interests may include:



No
executive officer of BAS holds more than 5.1% of the outstanding voting shares of BAS. Entities associated with Matrix Partners own approximately 26.6% of the outstanding voting shares of BAS and
have designated Mr. Marcuvitz as their representative on the Board of Directors. Entities associated with North Bridge Venture Partners own approximately 13.9% of the outstanding voting shares of BAS
and have designated Mr. Anderson as their representative on the Board of Directors. The calculation of percent ownership of outstanding voting shares assumes the conversion of all preferred stock into
common stock.

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