Chapter 3 Hardware Panels
GS1920 Series User’s Guide
30
3.3 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.
3.4 Reset to Factory Defaults
If you forget your password or cannot access the Web Configurator, you will need to use the Reset
button at the side of the device to reload the factory-default configuration file. This means that you
will lose all configurations that you had previously and the default Switch IP address, user name
and password will be reset to 192.168.1.1, admin and 1234 respectively.
Table 3
LED Descriptions
LED
COLOR
STATUS
DESCRIPTION
PoE
(GS1920-48HP
only)
Green
On
Each Ethernet port’s LED is changed to act as a PoE LED by using the LED
MODE button on the front panel.
Off
Each Ethernet port’s LED is changed back to act as a LNK/ACT LED by
releasing the LED MODE button on the front panel.
PWR
Green
On
The system is turned on.
Off
The system is off or has failed.
SYS
Green
On
The system is on and functioning properly.
Blinking
The system is rebooting and performing self-diagnostic tests.
Off
The power is off or the system is not ready/malfunctioning.
ALM
Red
On
A hardware failure is detected.
Off
The system is functioning normally.
LOCATOR
Blue
Blinking
Shows the actual location of the Switch between several devices in a rack.
Ethernet Ports
1-24 (GS1920-
24/24HP) and
1-48 (GS1920-
48/48HP)
LNK/ACT
Green
Blinking
The system is transmitting/receiving to/from a 10 Mbps or a 1000 Mbps
Ethernet network.
On
The link to a 10 Mbps or a 1000 Mbps Ethernet network is up.
Amber
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 an Ethernet network is down.
PoE
(GS1920-24HP
and GS1920-
48HP only)
Green
On
Power supplied to all PoE Ethernet ports meets the IEEE 802.3at
standard.
Amber
On
Power supplied to all PoE Ethernet ports meets the IEEE 802.3af standard.
Off
There is no power supplied.
Mini-GBIC Slots
25-28
(GS1920-24/
24HP) and 45-
50 (GS1920-
48/48HP)
SFP
Green
On
The uplink port is linking at 1000 Mbps.
Blinking
The system activity is transmitting/receiving data 1000 Mbps.
Amber
On
The uplink port is linking at 100 Mbps.
Blinking
The system activity is transmitting/receiving data 100 Mbps.
Off
There is no link or port, the uplink port is shut down.
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