TD-8616 ADSL2+ Modem User Guide
3
Chapter 2. Hardware Installation

2.1 The Front Panel

Figure 2-1
The LEDs locate on the front panel, which indicate the device’s working status. For details, please
refer to LED Explanation.
LED Explanation:
Name Status Indication
On The modem is powered on.
Power
Off The modem is off. Please ensure that the power adapter is connected
correctly.
On There is a device connected to this LAN port.
Flash The modem is sending or receiving data over this LAN port.
LAN
Off There is no device connected to this LAN port.
On ADSL line is synchronized and ready to use.
Flash The ADSL negotiation is in progress.
ADSL
Off ADSL synchronization fails. Please refer to Note 1 for troubleshooting.
On The network is available with a successful Internet connection.
Flash There is data being transmitted or received via the Internet.
Internet
Off There is no successful Internet connection or the modem is operating in
Bridge mode. Please refer to Note 2 for troubleshooting.
) Note:
1) If the ADSL LED is off, please check your Internet connection first. Refer to 2.4 Connecting
the Modem for more information about how to make Internet connection correctly. If you have
already made a right connection, please contact your ISP to make sure if your Internet
service is available now.
2) If the Internet LED is off, please check your ADSL LED first. If your ADSL LED is also off,
please refer to Note 1. If your ADSL LED is GREEN ON, please check your Internet
configuration. You may need to check this part of information with your ISP and make sure
everything have been input correctly. Refer to 4.1.1 Device Information and 4.2.1 WAN
Setting for more information.