
Chapter 1 Getting To Know Your ZyXEL Device
P-2900-4HB User’s Guide
18
1.3 LEDs (Lights)
The following figure displays the labels of the LED.
Figure 2 Front Panel LEDs
The following table describes the LEDs.
Table 1 Front Panel LEDs
LED COLOR STATUS DESCRIPTION
PWR Green On The ZyXEL Device is receiving AC power.
Blinking The ZyXEL Device is receiving sufficient power
from the battery.
Off The ZyXEL Device is not receiving power or it is
starting up.
DS Green On The ZyXEL Device has successfully found a
downstream channel.
Blinking The ZyXEL Device is trying to search for a
downstream channel.
Off The downstream channel is not found.
US Green On The ZyXEL Device has successfully found an
upstream channel.
Blinking The ZyXEL Device is trying to search for an
upstream channel.
Off The upstream channel is not found.
ONLINE Green On The ZyXEL Device has successfully established a
connection to the cable operator’s network.
Blinking Slowly: The ZyXEL Device is trying to initiate a
connection with the cable operator’s network.
Fast: The ZyXEL Device is sending/receiving data
on the WAN.
Off The coaxial cable is not connected or the cable link
is down.
LAN 1-4 Green On The ZyXEL Device has a successful 10/100Mb
Ethernet connection.
Blinking The ZyXEL Device is sending/receiving data.
Off The LAN is not connected.
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