ZyXEL Communications ES-3024 manual Stacking Scenario Examples, Sys, Alm, Lnk/Act, Fdx/Col

			Dimension ES-3024 Ethernet Switch
		Table 3-2 ES-3024 Switches: LED Descriptions
LED	COLOR	STATUS	DESCRIPTION
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.
LNK/ACT	Green	Blinking	The system is transmitting/receiving to/from a 10 Mbps Ethernet network.
(Ethernet ports)		ON	The link to a 10 Mbps Ethernet network is up.
		OFF	The link to a 10 Mbps Ethernet network is down.
	Yellow	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 a 100 Mbps Ethernet network is down.
FDX/COL	Yellow	Blinking	The Ethernet port is negotiating in half-duplex mode and collisions are
(Ethernet ports)			occurring; the more collisions that occur the faster the LED blinks.
		ON	The Ethernet port is negotiating in full-duplex mode.
		OFF	The Ethernet port is negotiating in half-duplex mode and no collisions are
			occurring.

3.5 Stacking Scenario Examples

Use Ethernet cables when stacking the switches. See the following figures for example stacking scenarios using the stacking module. The switches must form a closed ring in all scenarios.

Figure 3-6 Stacking Example 1

Hardware Connections 3-5