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24-Port and 48-Port Gigabit Ethernet PoE+ Smart Switches with 4 SFP Ports
LEDs
This section describes the LEDs on the front panel of the switch.
Table 2. Front panel LEDs
LED
Power LED
Fan LED
PoE Max LED
LED Mode LED
RJ-45 LEDs for ports 1–24
or ports 1–48
Depending on the position
of the LED Mode button,
the LEDs for an associated
port function either in
Ethernet Mode and indicate
the link status, speed, and
activity or in PoE Mode and
indicate the PoE status.
Link and ACT LEDs for ports
25–28 or ports 49–52
Hardware Overview
Description
Solid green: The switch is powered on.
Solid yellow: The switch is starting.
Off: Power is not supplied to the switch.
Solid yellow: The internal fan failed.
Off: The internal fan is operating normally.
Off: Sufficient (more than 7W of) PoE power is available.
Solid yellow: Less than 7W of PoE power is available.
Blinking yellow: At least once during the previous two minutes, less than 7W of PoE
power was available.
Solid green: The port LEDs function in Ethernet Mode.
Solid yellow: The port LEDs function in PoE Mode.
The LED Mode button is set to Ethernet Mode:
Off: No Ethernet link is established.
Solid green: A valid 1000 Mbps Ethernet link is established.
Blinking green: The port is transmitting or receiving packets at 1000 Mbps.
Solid yellow: A valid 10 Mbps or 100 Mbps Ethernet link is established.
Blinking yellow: The port is transmitting or receiving packets at 10 Mbps or 100
Mbps.
The LED Mode button is set to PoE Mode:
Off: The port is not delivering PoE.
Solid green: The port is delivering PoE.
Solid yellow: A PoE fault occurred. For more information, see PoE troubleshooting
suggestions on page 36.
Off: No SFP module link is established.
Solid green: A valid 1000 Mbps link is established.
Blinking green: The SFP port is transmitting or receiving packets at 1000 Mbps.
16
Hardware Installation Guide
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