User's Manual

O PTIONAL M EDIA E XTENDER M ODULE
1-9
Optional Media Extender Module
1000BASE Combo Module
Figure 1-5 Single-Port 1000BASE-T/SFP Combo Module
The 1000BASE-T RJ-45 port and SFP slot on this module share the same
internal interface. If an SFP transceiver (purchased separately) is installed
in a slot and has a valid link, the associated RJ-45 port is disabled and
cannot be used. The switch can also be configured to force the use of an
RJ-45 port or SFP slot, as required.
When connecting to the 1000BASE-T RJ-45 port, Category 5, 5e, or 6
twisted-pair cable can be used to connect to another device up to 100 m
(328 ft) away. The 1000BASE-T port operates at 10, 100, and 1000 Mbps.
At 1000 Mbps it operates at full duplex and supports auto-negotiation of
flow control. At 10/100 Mbps it supports auto-negotiation of speed,
duplex mode (i.e., half or full duplex), and flow control. Note that you
should first test the cable installation for IEEE 802.3ab compliance. See
“1000BASE-T Cable Requirements” on page 4-6.
This module also provides an SFP slot that supports 1000BASE-SX,
1000BASE-LX and 1000BASE-ZX transceivers. For a full listing of the
supported transceivers, see “Ordering Information” on page E-1.