Table of Contents
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S
WITCH
1
This chapter contains:
An overview of 3Com's SuperStack
and how it provides solutions for your network
A description of the major features and
components of the system
A network configuration example
Switch 3900 Intelligent Switch
The Switch 3900 is the ideal product for network
managers who want to migrate from existing
switched 10 Mb networks to switched 100 Mb or
who need to deliver faster access to servers.
The Switch 3900 provides superior workgroup and
departmental switching performance with the added
flexibility of multiple Gigabit Ethernet links and server
connections.
The SuperStack II Switch 3900 family delivers full line
rate, nonblocking switching between 10/100 Mb
links and 1000 Mb Gigabit Ethernet links.
3900 S
YSTEM AND
®
II Switch 3900
S
O
ETUP
VERVIEW
The Switch 3900 family consists of two models:
3C39024 — The 24-port 10/100BASE-TX switch,
with up to three Gigabit Ethernet links. See
Figure 1-1.
3C39036 — The 36-port 10/100BASE-TX switch,
with up to three Gigabit Ethernet links. See
Figure 1-2.
Both versions of the Switch 3900 provide:
One built-in Gigabit Ethernet multimode fiber
(MMF) link (1000BASE-SX)
Expansion slots on the back panel (see Figure 1-3)
that can hold one or two of these optional Gigabit
Ethernet modules:
Model 3C39001 — 1000BASE-SX for
multimode fiber (MMF)
Model 3C39002 — 1000BASE-LX for
single-mode fiber (SMF)
The cables for all Gigabit Ethernet ports use laser
transmission and have SC connectors.
See "Optional Gigabit Ethernet Modules" on
page 1-6 for more information.
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