B1250T
B1250T
2020-42T-C2FLF
TBU-CA085-500-WH
TBU-CA085-500-WH
Filter
SLIC
VDSL
e schematic above illustrates the application protection and does not constitute the complete
circuit design. Customers should verify actual device performance in their specic applications.
TBU-CA085-500-WH
B1250T
2020-42T-C2FLF
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.
Solution Products
VDSL Over POTS
ITU-T & GR-1089-CORE Solution
Asia-Pacific: Tel +886-2 256 241 17
Fax +886-2 256 241 16
Bourns® PortNote® solutions provide protection
recommendations for typical port threats.
For more information, go to:
www.bourns.com
or email: protection@bourns.com
Americas: Tel +1-951 781-5500
Fax +1-951 781-5700
Europe: Tel +41-(0)41 768 55 55
Fax +41-(0)41 768 55 10
Compliance
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
Alternate Recommendations
Variations of this circuit are available depending on
specic design constraints; contact your local Bourns
technical representative for more information.
Benefit
is solution provides protection to the voice and data
circuits without impairing the VDSL 30 MHz signal.
Objective
VDSL circuits are sometimes combined
with Plain Old Telephone Service (POTS)
circuits. is solution protects those
communication ports against surge and
power contact threats.
Solution
2 TBU® High-Speed Protectors:
TBU-CA085-500-WH
1 GDT: 2020-42T-C2FLF
2 Telefuse™ Telecom Fuses: B1250T
PN-DESIGNKIT-43
Design Kit
