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Product Overview
Cable Side
Console LEDs
The console LEDs show which console port is in use. See Figure 6 on page 11 and Figure 9 on page 15 for the LED
locations.
If you connect a cable to a console port, the switch automatically uses that port for console communication. If you
connect two console cables, the USB console port has priority.
Port LEDs
RJ-45 ports and SFP-module slots have port LEDs. Port LEDs, as a group or individually, provide information about the
switch and about the individual ports.
PoE LED
Table 7 RJ-45 and USB Console Port LEDs
LED Color Description
RJ-45 console port Green RJ-45 console port is active.
USB console port LED is off.
Off Port is not active.
USB console port is active.
USB console port Green USB console port is active.
RJ-45 console port LED is off.
Off Port is not active.
RJ-45 console port is active.
Table 8 Meaning of Port LED Colors
LED Color Meaning
Off No link or port was administratively shut down.
Green Link present but not sending or receiving data.
Blinking green Activity. Port is sending or receiving data.
Alternating
green-amber
Link fault. Error frames can affect connectivity, and errors such as excessive
collisions, CRC errors, and alignment and jabber errors are monitored for link
faults.
Amber Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data. After
a port is reconfigured, the port LED is amber for up to 30 seconds as STP
searches for loops.
Table 9 PoE LED
Color Meaning
Off PoE is not enabled.
Green PoE is enabled. Ports are functioning correctly.
Amber PoE is enabled, but an error is present.
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