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1.5 LEDs (Lights)
The following graphic displays the labels of the LEDs.
Figure 3 LEDs on the Device
None of the LEDs are on if the ZyXEL Device is not receiving power.
Table 1 LED Descriptions
LED
POWER
ETHERNET
1-4
P-873HNUP-51B User's Guide
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.
Off
The ZyXEL Device is not receiving power.
Blinking
Firmware upgrade is in progress.
Green
On
The ZyXEL Device has a successful 100 Mbps Ethernet
connection with a device on the Local Area Network (LAN).
Blinking
The ZyXEL Device is sending or receiving data to/from the LAN
at 100 Mbps.
Off
The ZyXEL Device does not have an Ethernet connection with
the LAN.
Chapter 1 Introducing the P-873HNUP-51B
25
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