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When the Wrong Slot LED Is ON (ONcore only) ............. 4-8
Determining the Failing Component Using a Wrap Test ........ 4-9
Replacing 6412M-25-TP Modules .................... 4-10
Appendix A. Technical Specifications . . . . . . . . . . . . . . . . . A-1
General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . A-1
Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Appendix B. ATM Components . . . . . . . . . . . . . . . . . . . . . B-1
Appendix C. Technical Support . . . . . . . . . . . . . . . . . . . . . C-1
Online Technical Services .......................... C-1
3Com Bulletin Board Service ...................... C-1
World Wide Web Site ........................... C-3
3ComForum on CompuServe ...................... C-3
3ComFacts Automated Fax Service .................. C-3
Support From Your Network Supplier ................... C-5
Support From 3Com Corporation ...................... C-5
Returning Products for Repair ....................... C-7
Accessing the 3Com ISD MIB ....................... C-8
Contacting 3Com ISD Technical Publications .............. C-8
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-1
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-3
vi 25 Mbps ATM Module - Installation and User's Guide