3Com 4250T Switch User Manual


 
A SAFETY INFORMATION
Important Safety Information 60
L’information de Sécurité Importante 62
Wichtige Sicherheitsinformationen 64
B PIN-OUTS
Null Modem Cable 67
PC-AT Serial Cable 67
Modem Cable 68
RJ-45 Pin Assignments 68
C TECHNICAL SPECIFICATIONS
Switch 4226T
(3C17300) 71
Switch 4250T
(3C17302) 73
Switch 4228G
(3C17304) 74
D OBTAINING SUPPORT FOR YOUR PRODUCT
Register Your Product 75
Purchase Value-Added Services 75
Troubleshoot Online 76
Access Software Downloads 76
Telephone Technical Support and Repair 76
Contact Us 77
INDEX
REGULATORY NOTICES
DUA1730-0AAA04.book Page 5 Thursday, November 17, 2005 2:59 PM