TP-Link TD-8840 - Manual (Page 11)

TD-8840 ADSL2+ Modem Router User Guide
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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
On Power is on.
Power
Off Power is off.
On The LINE port is linked up.
Flash The ADSL negotiation is in progress.
ADSL
Off The LINE port is linked down.
On A successful PPP connection has been built.
Flash Data is being transferred over the Internet.
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.
Off
There is no connection on the corresponding 1~4 (LAN) port or the
connection is abnormal.
1~4 (LAN)
Flash Data is being transferred over the 1~4 (LAN) port.