TP-Link TD-8841 - Manual (Page 8)

TD-8841 External ADSL2+ Router User Guide
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Chapter 2. Hardware Installation Guide
The TD-8841 maintains six separate interfaces, including four Ethernet interfaces, one USB
interface 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 as well as to a power source.
2.1 System requirement
Confirm your computer has been installed with networking interface card (NIC) before connecting
ADSL2+ Router to your computer, with the operating system supporting the TCP/IP protocol.
2.2 LED explanation
The front panel of ADSL2+ Router includes one power indicator (RED) and eight function
indicators (GREEN), as explained in following chart:
Name Status Indication
On Power OK
PWR
Off Power fail
Slow flash Self-detecting when power on
Quick flash The LINE port is connecting to ISP’s network
On The LINE port has connected to ISP’s network
ADSL
Off The LINE port has no connection
On There is mistake when ADSL transmitting or receiving data
ALARM
Off ADSL normal
On There is data transmitting or receiving on WAN port
ACT
Off No data is being transmitted or received on WAN port
On Connection to telecom network is OK
Off Connection on USB port is abnormal USB
Flash Data is being transmitted or received
On LAN port is normal
Off Connection on LAN port is abnormal LAN(1~4)
Flash Data is being transmitted or received on LAN port
2.3 Rear-panel
¾ ON/OFF: Turn on/off the ADSL2+ Router’s power.