![3Com SWITCH 4050 Getting Started Manual Download Page 5](http://html1.mh-extra.com/html/3com/switch-4050/switch-4050_getting-started-manual_441125005.webp)
Solving Hardware Problems
54
Solving Communication Problems
58
Solving Software Upgrade Problems
59
A
S
AFETY
I
NFORMATION
Important Safety Information
62
L’information de Sécurité Importante
65
Wichtige Sicherheitsinformationen
68
B
P
IN
-
OUTS
Null Modem Cable
71
PC-AT Serial Cable
71
Modem Cable
72
RJ-45 Pin Assignments
72
C
T
ECHNICAL
S
PECIFICATIONS
D
T
ECHNICAL
S
UPPORT
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
I
NDEX
R
EGULATORY
N
OTICES
Summary of Contents for SWITCH 4050
Page 6: ......
Page 60: ...60 CHAPTER 4 PROBLEM SOLVING ...
Page 71: ...B PIN OUTS Null Modem Cable 9 pin to RS 232 25 pin PC AT Serial Cable 9 pin to 9 pin ...
Page 74: ...74 APPENDIX B PIN OUTS ...
Page 86: ......