Chapter 2 Hardware
AX/DX/EX/PX Series User’s Guide
38
2.2.4 EX3500-T0 and EX3501-T0
Figure 14 LED Indicators (EX3500-T0 and EX3501-T0)
The following are the LED descriptions for your EX3500-T0 and EX3501-T0.
Table 9 LED Descriptions (EX3500-T0 and EX3501-T0)
LED COLOR STATUS DESCRIPTION
POWER Green On The Zyxel Device is receiving power and ready for use.
Blinking The Zyxel Device is booting up.
Red On The Zyxel Device detects an error while self-testing, or there is a device
malfunction.
Blinking The Zyxel Device is upgrading firmware.
Off The Zyxel Device is not receiving power.
WAN Green On The Ethernet link on the WAN is up.
Off The Ethernet link on the WAN is down.
INTERNET Green On The Zyxel Device has a WAN IP address (either static or assigned by a
DHCP server) and the Internet connection is up.
Blinking The Zyxel Device is sending or receiving Internet data.
Red On The Zyxel Device attempted to obtain an WAN IP but failed. Possible
causes are no response from a DHCP server, no PPPoE response,
PPPoE authentication failed.
Off There is no Internet connection or the gateway is in bridge mode.
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