Chapter 2 Hardware
AX/DX/EX/PX Series User’s Guide
45
Note: The phone LED is for the Zyxel Device with phone ports only; see Section 1.1 on page 19
for more information.
2.2.7 EX7501-B0
Figure 19 LED Indicators
The following are the LED descriptions for your EX7501-B0.
SFP Green On The SFP port is connected to the ISP’s ONT and the Zyxel Device is
receiving optical signals normally, or the SFP port’s Ethernet WAN
connection is up.
Off The connection to the ISP’s ONT or the Ethernet WAN connection is
down.
Table 11 LED Descriptions (EX5600-T1 / EX5601-T0/ EX5601-T1) (continued)
LED COLOR STATUS DESCRIPTION
Table 12 LED Descriptions (EX7501-B0)
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.
10G WAN Green On The Zyxel Device has a successful Ethernet connection on the 10G
WAN port.
Off The Zyxel Device does not have an Ethernet connection on the 10G
WAN port.
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 traffic.
Off There is no Internet connection or the gateway is in bridged mode.
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.
10G LAN Green On The Zyxel Device has a successful Ethernet connection with a device
on the 10G LAN (Local Area Network) port.
Blinking The Zyxel Device is sending or receiving data to/from the 10G LAN
port.
Off The Zyxel Device does not have an Ethernet connection on the 10G
LAN port.
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