3Com 3CR17450-91, Руководство по началу работы

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1
I
NTRODUCING THE
S
WITCH
3870
This chapter contains introductory information about the Switch 3870
and how it can be used in your network. It covers summary information
about the hardware and the following topics:
■
Overview of the Switch 3870
■
Physical Features
■
Default Settings
Overview of the
Switch 3870
The Switch 3870 24 port unit is a mixed media device that consists of:
■
24 10BASE-T/100BASE-TX/1000BASE-T RJ-45 ports and
■
Four 10/100/1000BASE-T/1000BASE-X SFP ports
The Switch 3870 48 port unit is a mixed media device that consists of:
■
48 10BASE-T/100BASE-TX/1000BASE-T RJ-45 ports
■
Four 10/100/1000BASE-T/1000BASE-X SFP ports
The four highest numbered RJ-45 ports (21–24 on the 24-port Switch,
45–48 on the 48-port Switch) and the SFP ports are combination ports.
When an SFP module is inserted, it has priority over the RJ-45 port with
the same number and the RJ-45 port is disabled.
For information about using the software features of the Switch, refer to
the “Switch Management Interface Reference Guide” on the CD-ROM
that accompanies the Switch.