SLIC Protection ITU-T Solution Solution Products TISP9110LDMR-S 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 protects SLIC interfaces against surge and power contact threats. ITU-T Basic for K.20, K.21, K.45 Solution Benefit 1 Thyristor: TISP9110LDMR-S 1 PTC: CMF-SDP50A-2 This solution provides a high level of protection in dual voltage ringing SLICs. 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 CMF-SDP50A-2 +VBAT 220 nF CMF-SDP50A-2 TISP9110LDMR-S SLIC RJ11 Design Kit 220 nF -VBAT PN-DESIGNKIT-39 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© 2011 • BOURNS, INC. • 08/11 • e/CPK1128 • “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]