1.2 LEDs and Interfaces
Front Panel
Figure 1 Front panel
The following table describes the LEDs of the device.
LED
Color
Status
Description
On
The device is powered on and the
initialization is normal.
Green
Off
The power is off.
PWR
Red On
The device is self-testing or self-testing is
failed.
Slow
Blinks
No signal is detected.
Fast
Blinks
The device is handshaking with the physical
layer of the office.
Link Green
On
The device is connected to the physical
layer of the office.
On
The Internet connection is normal in the
routing mode (for example: PPP dial-up is
successful), and no Internet data is being
transmitted.
Blinks
Internet data is being transmitted in the
routing mode.
Green
Off
The device is in the bridge mode.
Data
Red On
The Internet connection fails after
successful synchronization in the routing
mode (for example: PPP dial-up is failed).
On
The LAN connection is normal.
LAN4-1 Green
Blinks
Data is being transmitted through the LAN
interface, or the Internet data is being
transmitted in the bridge mode.
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