TP-Link TD-8840 Hardware Installation Guide, System Requirement, The Front Panel, LED Explanation

TD-8840

ADSL2+ Modem Router User Guide

Chapter 2.Hardware Installation Guide

The TD-8840 maintains five separate interfaces: four Ethernet and one ADSL interface. The Router should not be located where it will be exposed to moisture or excessive heat. Place the Router in a location where it can be safely connected to the various devices. The electrical outlet shall be installed near the device and shall be easily accessible.

2.1 System Requirement

Confirm your computer has been installed with networking interface card (NIC) before connecting ADSL2+ Modem Router to your computer, with the operating system supporting the TCP/IP protocol.

2.2 The Front Panel

The front panel of ADSL2+ Modem Router includes one power indicator and seven function indicators, as explained in chart below.

LED Explanation

Name	Status		Indication
Power	On		Power is on.
	Off	Power is off.
	On		The LINE port is linked up.
ADSL	Flash	The ADSL negotiation is in progress.
	Off	The LINE port is linked down.
	On		A successful PPP connection has been built.
Internet	Flash	Data is being transferred over the Internet.
	Off		There is no successful PPP connection or the Router works on
			Bridge mode.
	On		There is a successful connection on the corresponding 1~4 (LAN)
			port but no activity.
1~4 (LAN)	Off		There is no connection on the corresponding 1~4 (LAN) port or the
			connection is abnormal.
	Flash	Data is being transferred over the 1~4 (LAN) port.

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