ADC Lab Approved for Testing GR-326 Fiber Optic Connectors and Assemblies Under the Verizon ITL-PFOC Witness Testing Program.

Business Editors/High-Tech Writers

MINNEAPOLIS--(BUSINESS WIRE)--Dec. 3, 2003

ADC Named as First Manufacturer Lab in Completing Verizon's

ITL-PFOC Witness PFOC Certification for GR 326-CORE Issue 3

ADC (Nasdaq:ADCT www.adc.com) today announced that Verizon has approved ADC's Passive Fiber Optic Component (PFOC) Test Lab under the Verizon Independent PFOC Test Lab (ITL) Witnessing Program.

Designed to speed the testing and approval process, ADC's lab is the first to receive certification to conduct in-house testing of fiber components and assemblies under this Program. ADC partnered with Underwriters Laboratories and Verizon to achieve this approval.

"As Verizon's first PFOC-certified Fiber Cable Assemblies supplier lab, ADC can now manufacture and test fiber connectorized cable jumpers and assemblies that are typically used in Verizon's optical networks," said Tom Kampf, director of fiber solutions of the Connectivity Business Unit for ADC. "The investment made in our in-house capabilities to test these products will only strengthen our relationships with key customers. We have every confidence that ADC's lab facility is prepared to manage capacity for GR-326-CORE testing and we look forward to the cost and flexibility benefits both ADC and Verizon will achieve with this certification."

ADC received authorization to do in-house witness testing of the above mentioned fiber products based on the company's ability to meet Verizon's technical requirements, the Telcordia testing standards, and demonstrated fiber optic lab expertise and facilities. With this approval, ADC will be better able to control product quality, its manufacturing process and costs. This also allows ADC to complete its testing in a timely manner, enabling Verizon to receive its fiber products faster and more efficiently.

The testing process allows ADC to test, with UL witnessing, any fiber optic component to the GR-326 standard including all connector styles and cable/connector combinations. The lab, based in Shakopee, Minnesota, provides an efficient, flexible, and cost-effective way to serve its customers' demands.

About ADC

ADC is The Broadband Company(TM). ADC offers high-quality, value-added solutions of network equipment, software and systems integration services that enable communications service providers to deliver high-speed Internet, data, video and voice services to consumers and businesses worldwide. ADC (Nasdaq:ADCT) has sales into more than 100 countries. Learn more about ADC Telecommunications, Inc. at www.adc.com.