Description of Hardware

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1
Each of these ports support auto-negotiation, so the optimum transmission m od e
(half or full duplex), and data rate (10, 100, or 1000 Mbps) can be selected
automatically†.
SFP Slots
The Small Form Factor Pluggable (SFP) transceiver slots are shared with two of the
RJ-45 ports (ports 23-24). In its default configuration, if an SFP transceiver
(purchased separately) is installed in a slot and has a valid link on its port, 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 switch includes a display panel for key system and p ort indications that simplify
installation and network troubleshooting. The LEDs, which are located on the fro nt
panel for easy viewing, are shown below and described in the following tables.
Figure 1-3 Port and System LEDs
† The 1000BASE-T standard does not support forced mode. Auto-negotiation must always be
used to establish a connection over any 1000BASE-T port or tru nk.
Table 1-1 Port Status LEDs
LED Condition Status
1-24
(Link/Activity/
Speed)
On/Flashing Amber Port has a valid link at 10 or 100M bps. Flashing
indicates activity.
On/Flashing Green Port has a valid link at 1000 Mbps. Flashing indicates
activity.
Off There is no link on the port.
PoE Amber A PoE device is connected.
Amber Blinking A PoE device is connected and data is being
transmitted.
Off No PoE device connected.
RJ-45Port Status LEDs
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