ZyXEL ES-4124 User Guide - Page 51
Powering on the Switch
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3.3.4 Powering on the Switch 1 Turn on the power supply first. 2 Move the Switch power switch to the ON position. Chapter 3 Hardware Overview 3.4 LEDs The following table describes the LEDs. Table 2 LEDs LED COLOR STATUS DESCRIPTION BPS Green Blinking The system is receiving power from the backup power supply. On The backup power supply is connected and active. Off The backup power supply is not ready or not active. 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. Ethernet Ports LNK/ACT Green Blinking The system is transmitting/receiving to/from a 10 Mbps Ethernet network. On The link to a 10 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. FDX Amber On The Ethernet port is negotiating in full-duplex mode. Off The Ethernet port is negotiating in half-duplex mode. Gigabit 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. FDX Amber On The Ethernet port is negotiating in full-duplex mode. Off The Ethernet port is negotiating in half-duplex mode. Mini-GBIC Slots ES-4124 User's Guide 51