SMC Networks TigerSwitch SMC6726AL2, Installation Manual

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D
ESCRIPTION OF
H
ARDWARE
1-3
Description of Hardware
RJ-45 Ports
The SMC6726AL2 contains 24 10/100BASE-TX RJ-45 ports and two 10/
100/1000BASE-T RJ-45 ports that are shared with two SFP slots. All of
the RJ-45 ports can operate at 10 Mbps or 100 Mbps, half or full duplex.
The Gigabit ports can also operate at 1000 Mbps, full duplex. The RJ-45
ports all support automatic MDI/MDI-X operation, so you can use
straight-through cables for all network connections to PCs or servers, or to
other switches or hubs. (See “10BASE-T/100BASE-TX Pin Assignments”
on page B-2.)
Each of these ports support auto-negotiation, so the optimum
transmission mode (half or full duplex), and data rate (10, 100 or
1000 Mbps) can be selected automatically. If a device connected to one of
these ports does not support auto-negotiation, the communication mode
of that port can be configured manually.
Each port also supports auto-negotiation of flow control, so the switch
can automatically prevent port buffers from becoming saturated.
SFP Slots
The SMC6726AL2 contains two Small Form Factor Pluggable (SFP)
transceiver slots that are shared with 1000BASE-T RJ-45 ports 25-26. If an
SFP transceiver (purchased separately) is installed in a slot, 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.
Port and System Status LEDs
The SMC6726AL2 includes a display panel for key system and port
indications that simplify installation and network troubleshooting. The
LEDs, which are located on the front panel for easy viewing, are shown on
the next page and described in the following tables.