HP 5400 zl Installation And Getting Started Manual page 22

Introducing the HP 5400 zl Switches
Front of the Switch
Figure 1-4. Mode LEDs and LED Mode Select Button
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1-12
Mode LEDs
(one for each port)
Act
If the Activity indicator LED is lit, each port Mode LED displays
activity information for the port—it flickers as network traffic is received
and transmitted through the port.
FDx
If the Full Duplex indicator LED is lit, the port Mode LEDs light for
those ports that are operating in full duplex.
Spd
If the speed indicator LED is lit, the port LEDs behave as follows to
indicate the connection speed for the port:
• Off = 10 Mbps
• Blinking = 100 Mbps (the blinking behavior is a repeated on/off cycle
once every 0.5 sec.)
• On = 1000 Mbps
PoE
If the PoE indicator LED is lit, the Link and Mode LEDs indicate PoE
status:
Link LED:
• On = PoE is enabled on this port
• Off = PoE is disabled on this port.
• Slow Blinking = Internal PoE fault on this port.
• Fast Blinking = This port is denied PoE power or has an external load
fault.
Mode LED:
• On = PoE power is be supplied on this port
• Off = PoE is not being supplied on this port.
LED Mode Select button
and indicator LEDs