RJ11 SLIC Protection - 4 kV ITU-T Dual Supply Voltage

SLIC Protection
4 kV ITU-T Solution
Solution Products
TISP9110MDMR-S
CMF-RL55-10-0
Objective
Compliance
The SLIC (Subscriber Line Interface
Circuit) provides all the BORSCHT
functions such as battery, ringing
and supervision between the
codec and telephone handset.
This PortNote® solution provides
protection recommendations for
SLIC interfaces against 4 kV 10/700
µs surge and power contact threats.
ITU-T Basic for K.20, K.21, K.45
• Increased surge withstand to 4 kV 10/700 µs
Solution
Benefit
1 Thyristor: TISP9110MDMR-S
2 CPTC Resettable Fuses:
CMF-RL55-10-0
This solution provides a 4 kV 10/700 µs level of protection in
dual voltage ringing SLICs.
+VBAT
Alternate Recommendations
Other PortNote® Solutions:
• Negative Battery Voltage SLIC Protection - ITU-T Solution
• Negative Battery Voltage SLIC Protection - GR-1089-CORE Intra-building Solution
• SLIC Protection - GR-1089-CORE Intra-building Solution
220 nF
CMF-RL55-10-0
TISP9110MDMR-S
SLIC
RJ11
Design Kit
220 nF
CMF-RL55-10-0
-VBAT
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.
PN-DESIGNKIT-47
Americas: Tel +1-951 781-5500
EMEA:
Tel +36 88 520 390
Fax +36 88 520 211
Fax +1-951 781-5700
Asia-Pacific: Tel +886-2 256 241 17
Fax +886-2 256 241 16
COPYRIGHT© 2014 • BOURNS, INC. • 6/14 • PSG • 3M/K1438 • “PortNote” is a registered service mark of Bourns, Inc.
“Bourns” is a registered trademark 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]