Top Panel - ZyXEL Communications EX5501-B0 User Manual

1.5.1 Top Panel

The LED indicators are located on the top panel.
Figure 6 LED Indicators (EX5501-B0)
Figure 7 LED Indicators (AX7501-B0 / PX7501-B0)
None of the LEDs are on if the Zyxel Device is not receiving power.
Table 3 LED Descriptions
LED
POWER
WAN
FIBER
Chapter 1 Introducing the Zyxel Device
COLOR STATUS DESCRIPTION
Green On The Zyxel Device is receiving power and ready for use.
Blinking The Zyxel Device is self-testing.
Red On The Zyxel Device detected 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.
Blue On The Zyxel Device has a successful 2.5 Gbps Ethernet connection on the
WAN.
Green On The Zyxel Device has a successful 1 Gbps Ethernet connection on the WAN.
Off The Zyxel Device does not have an Ethernet connection with the WAN.
The LED will cycle Green > Blue > Off > repeat, when the Zyxel Device has
an unsupported 100 Mbps Ethernet connection on the WAN.
Note: For EX5501-B0 only.
Green On The FIBER port is connected to the ISP's ONT and the Zyxel Device is
receiving optical signals normally.
Blinking The Zyxel Device's FIBER port is trying to build a PON connection.
Red On The optical power received (the strength of optical signals transmitted on
the remote optical module) is too low.
Off The connection to the ISP's ONT is down.
EX5501-B0 / AX7501-B0 / PX7501-B0 User's Guide
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