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Chapter 3 Hardware Overview
ES-2048 User’s Guide
45
3.2 LEDs
The following table describes the LEDs on the switch.
Table 2 LEDs
LED COLOR STATUS DESCRIPTION
PWR Green On The system is turned on.
Off The system is off.
SYS Green 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.
ALM Red On There is a hardware failure.
Off The system is functioning normally.
48 RJ-45 Fast Ethernet Ports
10 Green Blinking The port is receiving or transmitting data.
On The port is connected at 10 Mbps.
Off The port is not connected at 10 Mbps or to an Ethernet device.
100 Amber Blinking The port is receiving or transmitting data.
On The port is connected at 100 Mbps.
Off The port is not connected at 100 Mbps or to an Ethernet device.
2 RJ-45 Gigabit Ethernet Ports
1000 Green Blinking The port is receiving or transmitting data.
On The port is connected at 1000/10 Mbps.
Off The port is not connected at 1000/10 Mbps or to an Ethernet
device.
100 Amber Blinking The port is receiving or transmitting data.
On The port is connected at 100 Mbps.
Off The port is not connected at 100 Mbps or to an Ethernet device.
GBIC Slots
LNK Green On The port has a successful connection.
Off No Ethernet device is connected to this port.
ACT Green Blinking The port is receiving or transmitting data.
MGMT
10 Green Blinking The port is receiving or transmitting data.
On The port is connected at 10 Mbps.
Off The port is not connected at 10 Mbps or to an Ethernet device.
100 Amber Blinking The system is transmitting/receiving to/from an Ethernet device.
On The port is connected at 100 Mbps.
Off The port is not connected at 100 Mbps or to an Ethernet device.