Chapter 3 Hardware Overview
GS1900 Series User’s Guide
27
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.
Table 4 LED Descriptions
LED COLOR STATUS DESCRIPTION
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.
Ethernet Ports
LNK/ACT Green Blinking The system is transmitting/receiving to/from a 1000 Mbps Ethernet
network.
On The link to a 1000 Mbps Ethernet network is up.
Off The link to an Ethernet network is down.
PoE
(GS1900-8HP
only)
Green On Power is supplied to all PoE Ethernet ports.
Off There is no power supply.
