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(R) solution provides protection recommendations for SLIC interfaces against 4 kV 10/700 s surge and power contact threats. ITU-T Basic for K.20, K.21, K.45 * Increased surge withstand to 4 kV 10/700 s Solution Benefit 1 Thyristor: TISP9110MDMR-S 2 CPTC Resettable Fuses: CMF-RL55-10-0 This solution provides a 4 kV 10/700 s level of protection in dual voltage ringing SLICs. +VBAT Alternate Recommendations Other PortNote(R) 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 PN-DESIGNKIT-47 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: EMEA: Tel +36 88 520 390 Fax +36 88 520 211 Asia-Pacific: Tel +1-951 781-5500 Fax +1-951 781-5700 Bourns(R) PortNote(R) solutions provide protection recommendations for typical port threats. Tel +886-2 256 241 17 Fax +886-2 256 241 16 For more information, go to: COPYRIGHT(c) 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. www.bourns.com or email: protection@bourns.com