1-2
C
HAPTER
1: S
WITCH
3900 S
YSTEM
AND
S
ETUP
O
VERVIEW
System Overview — 24-Port Front Panel
Figure 1-1
Front Panel of the 24-Port SuperStack II Switch 3900
Ethernet Ports
Provide 24 10/100BASE-TX
(RJ-45) Ethernet ports
System and Port LEDs
Provide information about
the system and each port
14 15 16 17
13
18 19 20 21
22 23 24
14 15 16 17
13
18 19 20 21
22 23
10
10
6
7
8
9
Status
1x
6x
12x
7x
13x
18x
24x
19x
green
= enabled, link OK
flashing green
= disabled, link OK
off
= link fail
Power Fault
10/100 BASE - TX
2
3
1
11 12
4
5
6
7
8
9
2
3
1
11 12
4
5
24
Pckt
Stat
Pckt
Stat
Super Stack II
Switch 3900