Leds - ZyXEL Communications MGS-3712F 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 2 LED Descriptions
LED COLOR
BPS Green
PWR Green
SYS Green
ALM Red
Mini-GBIC Slots
LNK Green
ACT Green
Gigabit Ethernet Ports
LNK/ Green
ACT
Amber
FDX Amber
MGMT
10 Green
MGS-3712/MGS-3712F User's Guide
STATU
DESCRIPTION
S
On The backup power supply is connected and active.
Blinking The system is receiving power from the backup power
supply.
Off The backup power supply is not ready or not active.
On The system is turned on.
Off The system is off.
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.
On A hardware failure is detected or an alarm from the
external alarm is received.
Off The system is functioning normally.
On The link to this port is up.
Off The link to this port is not connected.
Blinking This port is receiving or transmitting data.
Blinking The system is transmitting/receiving to/from an Ethernet
network.
On The link to a 1000 Mbps Ethernet network is up.
Blinking The system is transmitting/receiving to/from an Ethernet
network.
On The link to a 100 Mbps Ethernet network is up.
Off The link to an Ethernet network is down.
On The Gigabit port is negotiating in full-duplex mode.
Blinking There is congestion in half-duplex mode.
Off The Gigabit port is negotiating in half-duplex mode.
Blinking The system is transmitting/receiving to/from an Ethernet
device.
On The port is connected at 10Mbps.
Off The port is not connected at 10Mbps or to an Ethernet
device.
Chapter 3 Hardware Overview
43