ZyXEL Communications P-2812HNU-51c manual 31

Chapter 1 Introducing the P-2812HNU-51c

None of the LEDs are on if the P-2812HNU-51c is not receiving power.

Table 1 LED Descriptions

LED	COLO	STATUS	DESCRIPTION
	R
PWR/SYS	Green	On	The P-2812HNU-51c is receiving power and ready for
			use.
		Blinking	The P-2812HNU-51c is self-testing.
	Red	On	The P-2812HNU-51c detected an error while self-testing,
			or there is a device malfunction.
		Off	The P-2812HNU-51c is not receiving power.
PHONE 1/2	Green	On	A SIP account is registered for the phone port.
		Blinking	A telephone connected to the phone port has its receiver
			off of the hook or there is an incoming call.
	Orange	On	A SIP account is registered for the phone port and there
			is a voice message in the corresponding SIP account.
		Blinking	A telephone connected to the phone port has its receiver
			off of the hook and there is a voice message in the
			corresponding SIP account.
		Off	The phone port does not have a SIP account registered.
USB	Green	On	The P-2812HNU-51c recognizes a USB connection.
		Blinking	The P-2812HNU-51c is sending/receiving data to /from
			the USB device connected to it.
		Off	The P-2812HNU-51c does not detect a USB connection.
WAN	Green	On	The P-2812HNU-51c has an Ethernet connection with a
			device on the WAN.
		Blinking	The P-2812HNU-51c is sending/receiving data to/from
			the WAN.
		Off	The P-2812HNU-51c does not have an Ethernet
			connection with the WAN.
ETHERNET	Green	On	The P-2812HNU-51c has a successful 1000 Mbps
1-4			Ethernet connection with a device on the Local Area
			Network (LAN).
		Blinking	The P-2812HNU-51c is sending or receiving data to/from
			the LAN at 1000 Mbps.
	Orange	On	The P-2812HNU-51c has a successful 10/100 Mbps
			Ethernet connection with a device on the Local Area
			Network (LAN).
		Blinking	The P-2812HNU-51c is sending or receiving data to/from
			the LAN at 10/100 Mbps.
		Off	The P-2812HNU-51c does not have an Ethernet
			connection with the LAN.

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P-2812HNU-51c User’s Guide