EX-series Switch—Network Port LEDs
Each network port (RJ-45 connectors) on the front panel
of an EX-series switch has two LEDs. Figure 1 shows the network ports and the locations of the LEDs on
the port.
Figure 1: EX–series Switch—Network
Port LEDs

The LEDs labeled LED
1 in Table 1 indicate whether
the ports are in full-duplex or half-duplex mode, and the link speed.
LEDs labeled LED 2 indicate link activity and whether PoE is enabled
on the ports. Table 1 describes
these LEDs, their colors and state, and the status they indicate.
Table 1: EX-series
Switch—Network Port LEDs
LED
|
Color
|
State and Description
|
LED 1
|
Unlit
|
No link activity; PoE is not enabled.
|
Green
|
- On steadily—The port is up and the link is active,
but there is no link activity.
- Blinking—The port is up, with active links.
|
Yellow
|
On steadily—PoE is enabled.
|
LED 2
|
Green
|
Indicates that port is operating in full-duplex
mode. The link-speed indicators are:
- One blink per second—10 Mbps
- Two blinks per second—100 Mbps
- Three blinks per second—1000 Mbps
|
Yellow
|
Indicates that port is operating in half-duplex
mode. The link-speed indicators are:
- One blink per second—10 Mbps
- Two blinks per second—100 Mbps
- Three blinks per second—1000 Mbps
|
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