ZyXEL Communications gigabit ethernet line card version 4.02, zyxel fiber-based 1.4 Ports and LEDs, 1.4.1 Ports, 1.4.2 LEDs, LED, LABEL, Table, COLOR, STATUS, DESCRIPTION, DESCRIPTION, Table 1 Front Panel Ports

Chapter 1 Introducing the GLC1320G-55

1.4 Ports and LEDs

These are the details of the front panel ports and LEDs.

1.4.1 Ports

The following table describes the port labels on the front panel.Table 1 Front Panel Ports

LABEL	DESCRIPTION
CONSOLE	For troubleshooting purposes, this mini RJ-11port connects to a computer
	when the line card is not manageable from the MSC.
1-16	These are slots for SFP transceivers.
17/21-20/24	These are slots for CSFP/SFP transceivers.

1.4.2 LEDs

The following table describes the LED indicators on the front panel of the GLC1320G-55. Table 2 LED Descriptions

LED	COLOR	STATUS	DESCRIPTION
PWR	Green	On	The line card is turned on.
		Off	The line card is off.
SYS	Green	Blinking	The line card is rebooting and performing self-diagnostic
			tests.
		On	The line card is on and functioning properly.
		Off	The power is off or the line card is malfunctioning.
ALM	Red	On	There is a hardware failure or an alarm.
		Off	The line card is functioning normally.
LNK 1-16	Green	On	A Ethernet link is up.
		Off	The Ethernet link is down.
ACT 1-16	Green	Blinking	The Ethernet link is transmitting/receiving Ethernet traffic.
		Off	The Ethernet link is down.
LNK/ACT	Green	On	A Ethernet link is up.
17-24
		Blinking	The Ethernet link is transmitting/receiving Ethernet traffic.
		Off	The Ethernet link is down.

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GLC1320G-55 User’s Guide