Pulse and Comtrend Demonstrate Error-Free Internet Protocol Television over VDSL2; Successful Ring Trip Mitigation Paves Way for Telco Delivery of IPTV.

SAN DIEGO -- Pulse(R), a Technitrol (NYSE:TNL) Company and owner of the popular Excelsus(R) DSL filter brand, and Comtrend Corporation, a leading supplier of DSL equipment, today announced the results of Internet protocol television (IPTV) over VDSL2 testing. The successful tests demonstrated error-free transmission of video, data, and voice over VDSL2 in difficult "ring trip" conditions. This technical breakthrough overcomes a major problem for telephone companies delivering IPTV over traditional phone lines.

When analog voice and digital video signals are transmitted simultaneously over VDSL2, there can be interference caused by ringing voltage or "ring trip." This may occur when a ringing telephone is answered and can corrupt the video, creating unacceptable video quality. The technical challenge has been to eliminate the video errors while maintaining DSL transmission rate and signal quality.

The interoperability tests were conducted last month at Broadcom's design lab in Mechelen, Belgium. Broadcom's test network included outside plant twisted-pair phone lines and coaxial cable. Comtrend featured their CT-5371 VDSL2 multimode DSL router based on Broadcom's VDSL2/ADSL2+ CPE and CO chipsets. Pulse provided a variety of components, including the Excelsus(R) CP-V413 splitter circuitry and Pulse's multiport splitter design for central offices (COs). The test setup replicated conditions typically found in customer premises and CO environments. Under these conditions, the test results showed no bit rate errors.

"In a VDSL2 network transmitting video, the performance of modems, routers, and splitters is critical. Error-free performance from these devices in the presence of ring trip is key for the delivery of high quality IPTV services," said Greg Gough, Pulse's staff systems engineer. "Together Pulse and Comtrend have addressed the challenge of VDSL2 performance during ring trip," said Joe Maier, Comtrend's director of technology. Based on these positive test results, products from Pulse and Comtrend are now available for field tests in the public switched telephone network (PSTN).

About Comtrend Corporation

With over six million products installed, Comtrend is established as one of the leading suppliers of DSL equipment in the world. Comtrend offers a broad array of leading-edge, high-quality, DSL products that embeds ADSL, ADSL2+, Bonded ADSL2+ and VDSL2 technologies to support triple-play voice, video and data applications, including IP-Video, VoIP, optional WiFi drops and industry-standard QOS with VLAN traffic assignment, IGMP Snooping and IGMP proxy, which provides efficient traffic management and control in IP multicast applications. Comtrend is a global company, with headquarters in Irvine, Calif.;, Madrid, Spain; and Taipei, Taiwan. For more information, visit the Comtrend web site at www.comtrend.com.

About Pulse

Headquartered in San Diego, Pulse, a Technitrol (NYSE:TNL) Company, is a worldwide leader in the design and manufacturing of electronic components. Pulse primarily serves OEMs in the data networking, telecommunications, high-speed Internet access, power conversion, and military/aerospace and consumer electronics industries. Pulse's expertise in interference (noise) reduction, miniaturization, power management, and signal conversion is well recognized. In addition to offering an extensive line of custom and standard magnetics, Pulse designs and manufactures connectors and antennas for commercial and consumer electronics, as well as electronic coils for the automotive market. As an ISO 9000-2000-registered manufacturer, Pulse is fully engaged in joint development programs with key customers to ensure they receive high-performance, high-quality, and high-reliability products at competitive prices. Pulse is a member of and actively participates in IEEE, ATIS, ETSI, the DSL Forum, the San Diego Telecom Council, and MoCA(R).

For more information on Pulse's Telecom products, please email [e-mail]. Visit the Pulse website at www.pulseeng.com.

Copyright (C)2006 Pulse Engineering, Inc. All rights reserved. All brand names and trademarks are properties of their respective holders.

Cautionary Note: This message contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially. This release should be read in conjunction with the factors set forth in Technitrol's report on Form 10-Q for the quarter ended March 31, 2006, in Item 2 under the caption "Factors that May Affect Our Future Results (Cautionary Statements for Purposes of the `Safe Harbor' Provisions of the Private Securities Litigation Reform Act of 1995)."