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.
