Excelsus Introduces Central Office POTS Splitter With 96 Available Channels in a Single Rack Space; Modular, Scalable Architecture Allows Easy Addition of 24-Channel Cards and Backplanes.

Business Editors & High-Tech Writers

SAN DIEGO--(BUSINESS WIRE)--May 21, 2002

Excelsus Technologies Inc., a division of Pulse, a Technitrol company (NYSE:TNL), today introduced a digital subscriber line (DSL) plain old telephone service (POTS) splitter for central office (CO) applications.

Modular in design, the one rack unit (1U) chassis accommodates up to 96 channels -- twice the density of most shelf splitters. With this solution, service providers can deliver maximum DSL capacity in COs where space is limited. The splitter can also be used in remote terminal and multi-tenant unit (MTU) applications.

The CO splitter card and backplane are easily inserted or removed from the rack mount chassis. This saves time and effort during installation or upgrades. The chassis will fit in 19-inch and 23-inch rack mount installations. The splitter card, backplane and chassis are a completely passive system. No external power or cooling fans are required for operation.

The CO splitter's function is to isolate high-frequency DSL from lower-frequency POTS signals.

"The primary advantage of our CO splitter is its density and scalability," said Millard Schewe, marketing manager for Excelsus Technologies. "It accommodates between 24 and 96 channels in just one unit height (or 1U) of rack space. Service providers simply install backplanes and cards as needed, rather than having to purchase more hardware up front."

Technical Information

The 24-channel splitter card, CO-620ANSI, incorporates unique, patented inductors to achieve high-density and improved electrical performance. Each card measures only eight inches wide (a half-shelf configuration). This allows two cards to be installed side-by-side in the chassis. Cards are also stacked in the chassis, for a total of four (2x2) cards per chassis.

All splitter cards have DC blocking capacitors and can be configured with or without signature and circuit protection. The precision edge connector on the CO-242CP backplane ensures a reliable "make before break" connection, eliminating the risk of interrupting phone service during installation.

The CO-496 splitter rack-mount chassis is designed to fit up to 96 DSL POTS splitter channels in a 1U rack space. The chassis has four card bays, allowing one to four backplanes and one to four splitter shelf cards to be installed in the field, as needed. This gives service providers the flexibility to install 24, 48, 72 or 96 ports.

Brackets enable the chassis to mount in 19-inch or 23-inch racks. Since the chassis supports a wide variety of ANSI, ITU and ETSI circuits, the splitter can be used for CO applications worldwide.

The CO-620ANSI and CO-242CP meet ANSI T1.413 Issue 2 Annex E and are compatible with ITU-T G.992.1 Annex E2 requirements. The system is also designed to meet or exceed GR-1089-CORE for surge and power cross, as well as NEBS Level 3 requirements when mounted in the CO-496 chassis.

About Excelsus Technologies

Excelsus Technologies, an operating unit of Pulse, provides high-quality DSL filters and accessories for broadband Internet access over conventional telephone lines. The company's patented Z-BLOCKER(R) filter technology eliminates line interference and noise to deliver the full potential of DSL.

Excelsus offers a wide selection of economical filters for line configurations in many countries, all with easy, do-it-yourself installation. With its innovative engineering and production capabilities, Excelsus is positioned to serve the millions of DSL users worldwide.

Pulse is one of the world's largest manufacturers of magnetic components. With headquarters in San Diego, the company produces a complete line of passive magnetic components and modules for use in Internet/broadband access, power, telecommunications and datacom applications.

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 29, 2002 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)."

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