Leds - ZyXEL Communications GS1900 Series User Manual

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 3 LED Descriptions
LED COLOR
PWR Green
SYS Green
Ethernet Ports
LNK/ACT Green
PoE Green
(see Section 1.1
on page 17)
1G SFP Slots (Fiber-optic Ports – see
LNK/ACT Green
Table 4 LED Descriptions (GS1900-8HP (Revision B1) and GS1900-10HP/GS1900-10HP Revision B1 Only)
LED COLOR
PWR Green
SYS Green
Red
PoE 10/100/1000Base-T Ports (1-8), 2 LEDs per port
Left
Right Amber
Green
Chapter 3 Hardware Overview
STATUS DESCRIPTION
On The system is turned on.
Off The system is off or has failed.
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 or malfunctioning.
Blinking The system is transmitting/receiving to/from a 100/1000 Mbps Ethernet network.
On The link to a 100/1000 Mbps Ethernet network is up.
Off The link to an Ethernet network is down.
On Power is supplied to all PoE Ethernet ports.
Off There is no power supplied.
Section 1.1 on page 17)
Blinking The system is transmitting/receiving to/from a 100/1000 Mbps fiber-optic network.
On The link to a 100/1000 Mbps fiber-optic network is up.
Off The link to a fiber-optic network is down.
STATUS DESCRIPTION
On The system is turned on.
Off The system is off or has failed.
On The system is on and functioning properly.
Blinking The system is rebooting.
On There is a system error.
Right
On The port is in PoE AF mode. That is, the Switch is following the IEEE 802.3af standard to
supply power to this port.
On The port is in PoE AT mode. That is, the Switch is following the IEEE 802.3at standard to
supply power to this port.
Off Power is not supplied to this port.
GS1900 Series User's Guide
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