VDSL Over POTS ITU-T & GR-1089-CORE Solution Solution Products TBU-CA085-500-WH Objective Compliance VDSL circuits are sometimes combined with Plain Old Telephone Service (POTS) circuits. This solution protects those communication ports against surge and power contact threats. ITU-T K.20, K.45, K.21 (Enhanced) • 6 kV 10/700 µs Lightning Surge • 600 Vrms Power Induction • 230 Vrms Power Contact GR-1089-CORE Issue 6 Solution Alternate Recommendations 2 TBU® High-Speed Protectors: TBU-CA085-500-WH 1 GDT: 2020-42T-C2FLF 2 Telefuse™ Telecom Fuses: B1250T 2020-42T-C2FLF Variations of this circuit are available depending on specific design constraints; contact your local Bourns technical representative for more information. Benefit This solution provides protection to the voice and data circuits without impairing the VDSL 30 MHz signal. TBU-CA085-500-WH B1250T B1250T VDSL 2020-42T-C2FLF TBU-CA085-500-WH B1250T Design Kit SLIC PN-DESIGNKIT-43 Filter The schematic above illustrates the application protection and does not constitute the complete circuit design. Customers should verify actual device performance in their specific applications. Americas: Tel +1-951 781-5500 Fax +1-951 781-5700 Europe: Tel +41-(0)41 768 55 55 Asia-Pacific: Tel +886-2 256 241 17 Fax +41-(0)41 768 55 10 Fax +886-2 256 241 16 COPYRIGHT© 2012 • BOURNS, INC. • 10/12 • e/CPK1236 • “PortNote” is a registered service mark of Bourns, Inc. “Telefuse” is a trademark of Bourns, Inc. “Bourns” and “TBU” are registered trademarks of Bourns, Inc. in the U.S. and other countries. Bourns® PortNote® solutions provide protection recommendations for typical port threats. For more information, go to: www.bourns.com or email: [email protected]