t1/e1 itu-t t1/e1 t ransceiv er b1250t b1250t tx tip tx ring rx tip rx ring TISP7015L1 TISP7015L1 t tip t ring r tip r ring te schematic above illustrates the application protection and does not constitute the complete circuit design. customers should verify actual device performance in their specifc applications. TISP7015L1 b1250t sol utions copyright? 2010 ? bourns, inc. ? 04/10 ? e/cpk1012 ? portnote is a trademark of bourns, inc. bourns is a registered trademark of bourns, inc. in the u.s. and other countries. solution products asia-pacifc: 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 alternate recommendations other portnote? solutions: ? t1/e1: gr-1089-core specifc solutions for itu-t k.20 and iec 61000-4-5 are also available. contact your local bourns technical resource. beneft tis solution provides protection without impairing the signal. objective t1 and e1 are common telephony interfaces. tis solution provides protection against surge and power contact. solution 2 tyristors: TISP7015L1 2 fuses: b1250t compliance itu-t k.45 basic itu-t k.21 basic pn-designkit 13 design kit
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