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Dimension ES-3124 Ethernet Switch
Hardware Connections 3-7
Table 3-2 ES-3124: LED Descriptions
LED COLOR STATUS DESCRIPTION
PWR Green ON
OFF
The system is turned on.
The system is off.
SYS Green Blinking
ON
OFF
The system is rebooting and performing self-diagnostic tests.
The system is on and functioning properly.
The power is off or the system is not ready/malfunctioning.
ALM Red ON
OFF
There is a hardware failure.
The system is functioning normally.
LNK/ACT
Green Blinking
ON
The system is transmitting/receiving to/from a 10 Mbps Ethernet network.
The link to a 10 Mbps Ethernet network is up.
Amber Blinking
ON
The system is transmitting/receiving to/from a 100 Mbps Ethernet network.
The link to a 100 Mbps Ethernet network is up.
OFF The link to a 100/10 Mbps Ethernet network is down.
ON The Ethernet port is negotiating in full-duplex mode. FDX
Amber
OFF The Ethernet port is negotiating in half-duplex mode and no collisions are
occurring.
Gigabit Port
Green Blinking
ON
The system is transmitting/receiving to/from a 1000 Mbps Ethernet network.
The link to a 1000 Mbps Ethernet network is up.
Amber Blinking
ON
The system is transmitting/receiving to/from a 100 Mbps Ethernet network.
The link to a 100 Mbps Ethernet network is up.
LNK/ACT
OFF The link to an Ethernet network is down.
FDX Amber ON
OFF
The Gigabit port is negotiating in full-duplex mode.
The Gigabit port is negotiating in half-duplex mode and no collisions are
occurring.
GBIC Slot
LINK Green ON
OFF
The link to this port is up.
The link to this port is not connected.
ACT Green Blinking This port is receiving or transmitting data
MGMT
10 Green Blinking
ON
OFF
The system is transmitting/receiving to/from an Ethernet device.
The port is connected at 10 Mbps.
The port is not connected at 10 Mbps or to an Ethernet device.
100 Amber Blinking
ON
OFF
The system is transmitting/receiving to/from an Ethernet device.
The port is connected at 100 Mbps.
The port is not connected at 100 Mbps or to an Ethernet device.