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2
I
NSTALLING
THE
S
WITCH
Choosing a Suitable Site 24
Rack-mounting 24
Placing Units On Top of Each Other 25
Stacking Units 26
Stacking Two Units 26
Stacking Up To Four Units 27
The Power-up Sequence 29
Connecting a Redundant Power System 29
Powering-up the Switch 3300 SM 29
Checking for Correct Operation 29
Choosing the Correct Cables 30
Solving Problems Indicated by LEDs 31
Managing the Switch 32
A
S
AFETY
I
NFORMATION
Important Safety Information 34
L’information de Sécurité Importante 36
Wichtige Sicherheitsinformationen 38
B
P
IN
-
OUTS
Null Modem Cable 41
PC-AT Serial Cable 41
Modem Cable 42
RJ45 Pin Assignments 42
C
T
ECHNICAL
S
PECIFICATIONS
D
T
ECHNICAL
S
UPPORT
Online Technical Services 47
World Wide Web Site 47
3Com Knowledgebase Web Services 47
3Com FTP Site 48
3Com Facts Automated Fax Service 48
Support from Your Network Supplier 48