3Com 4050 Switch User Manual


 
Solving Hardware Problems 54
Solving Communication Problems 58
Solving Software Upgrade Problems 59
A SAFETY INFORMATION
Important Safety Information 62
L’information de Sécurité Importante 65
Wichtige Sicherheitsinformationen 68
B PIN-OUTS
Null Modem Cable 71
PC-AT Serial Cable 71
Modem Cable 72
RJ-45 Pin Assignments 72
C TECHNICAL SPECIFICATIONS
D TECHNICAL SUPPORT
Online Technical Services 77
World Wide Web Site 77
3Com Knowledgebase Web Services 77
3Com FTP Site 78
Support from Your Network Supplier 78
Support from 3Com 79
Email Support 79
Telephone Support 79
Returning Products for Repair 81
INDEX
REGULATORY NOTICES