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Users Manual Part 1

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Chapter 1 Introducing the Zyxel Device
PX7511-B0 User’s Guide
21
1.5.2 Rear Panel
The connection ports are located on the rear panel.
POWER 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.
PON Green On The PON port is connected to the ISP’s ONT and the Zyxel Device is
receiving optical signals normally.
Blinking The Zyxel Device’s PON port is trying to build a PON connection.
Red Blinking The receive optical power (the strength of optical signals transmitted on the
remote optical module) is too low.
On The connection to the ISP’s ONT is down.
INTERNET Green On The Zyxel Device has an IP connection but no traffic.
Your device has a WAN IP address (either static or assigned by a DHCP
server), PPP negotiation was successfully completed (if used).
Blinking The Zyxel Device is sending or receiving IP traffic.
Off There is no Internet connection or the gateway is in bridged mode.
Red On The Zyxel Device attempted to make an IP connection but failed. Possible
causes are no response from a DHCP server, no PPPoE response, PPPoE
authentication failed.
2.4G WiFi Green On The 2.4G wireless network is activated.
Blinking The Zyxel Device is communicating with 2.4G wireless clients.
Off The 2.4G wireless network is not activated.
5G WiFi Green On The 5G wireless network is activated.
Blinking The Zyxel Device is communicating with 5G wireless clients.
Off The 5G wireless network is not activated.
PHONE Green On A SIP account is registered for the phone port.
Blinking The telephone connected to this phone port has an incoming call or is off
the hook.
Off The phone port does not have a SIP account registered.
Amber On A SIP account is registered for the phone port, and there is a voice message
in the corresponding SIP account.
Blinking The telephone connected to this phone port has an incoming call or is off
the hook. There is a voice message in the corresponding SIP account.
WPS Green Blinking The Zyxel Device is setting up a WPS connection with a wireless client.
Off The Zyxel Device has set up a WPS connection with a wireless client or WPS
has not been enabled.
Table 2 LED Descriptions (continued)
LED COLOR STATUS DESCRIPTION