Front Panel Leds; Figure 3-3 Front Panel Leds; Table 3-2 Front Panel: Led Descriptions - ZyXEL Communications dimension ES-4024 User Manual

3.4 Front Panel LEDs

After you connect the power to the switch, view the LEDs to ensure proper functioning of the switch and as an aid
in troubleshooting. The front panel LEDs are as follows.
The following table describes the LED indicators on the front panel of the ES-4024.
LED COLOR
S1 Green
S2
PWR Green
SYS Green
ALM Red
LNK/ACT Green
(Ethernet ports)
Yellow
FDX/COL Yellow
(Ethernet ports)
Hardware Connections

Figure 3-3 Front Panel LEDs

Table 3-2 Front Panel: LED Descriptions

STATUS
Blinking The system is transmitting/receiving through the stacking port.
ON The link through the stacking port is up.
OFF The link through the stacking port is down.
ON The system is turned on.
OFF The system is off.
Blinking The system is rebooting and performing self-diagnostic tests.
ON The system is on and functioning properly.
OFF The power is off or the system is not ready/malfunctioning.
ON There is a hardware failure.
OFF The system is functioning normally.
Blinking The system is transmitting/receiving to/from a 10 Mbps Ethernet network.
ON The link to a 10 Mbps Ethernet network is up.
OFF The link to a 10 Mbps Ethernet network is down.
Blinking The system is transmitting/receiving to/from a 100 Mbps Ethernet network.
ON The link to a 100 Mbps Ethernet network is up.
OFF The link to a 100 Mbps Ethernet network is down.
Blinking The Ethernet port is negotiating in half-duplex mode and collisions are
occurring; the more collisions that occur the faster the LED blinks.
ON The Ethernet port is negotiating in full-duplex mode.
OFF The Ethernet port is negotiating in half-duplex mode and no collisions are
occurring.
Dimension ES-4024 Ethernet Switch
DESCRIPTION
3-3