ZyXEL Communications GS1910, XGS1910 manual 3.3 LEDs

Chapter 3 Hardware Overview

3.3 LEDs

The following table describes the LEDs.

Table 2 LEDs

LED	COLOR	STATUS	DESCRIPTION
PoE	Green	On	Each Ethernet port’s LED is changed to act as a PoE LED
(GS1910-			by using the LED MODE button on the front panel.
48HP
		Off	Each Ethernet port’s LED is changed back to act as a
only)
			LNK/ACT LED by using the LED MODE button on the
			front panel.
STACK	Green	On	The Switch is acting as the master in stacking.
(XGS191
	Amber	On	The Switch is acting as the backup master device in
0-24 and
			stacking.
XGS1910
-48 only)		Blinking	The Switch is acting as a slave member in stacking and
			is being selected by the master in its web configurator
			stack screen.
		Off	The Switch is not working in stacking mode.
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.
10/100/1000 Mbps RJ-45 Ports
LNK/ACT	Green	Blinking	The system is transmitting/receiving to/from a 10/1000
			Mbps Ethernet network.
		On	The link to a 10/1000 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	Green	On	Power supplied to all PoE Ethernet ports meets the IEEE
(GS1910-			802.3at standard.
24HP and
	Amber	On	Power supplied to all PoE Ethernet ports meets the IEEE
GS1910-			802.3af standard.
48HP
only)		Off	There is no power supplied.

SFP Slots

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	GS1910/XGS1910 Series User’s Guide