The Rear Panel - TP-Link TL-MR3420 User Manual

The Router's LEDs are located on the front panel (View from left to right).
Name Status
On
PWR
Off
On
SYS Flashing
Off
Flashing
WLAN
Off
On
WAN,
Flashing
LAN1-4
Off
On
3G Flashing
Off
Slow Flash
QSS
On
Quick Flash
Note:
After a device is successfully added to the network by QSS function, the QSS LED will keep on for
about 5 minutes and then turn off.

1.4.2 The Rear Panel

The following parts are located on the rear panel (View from left to right).
Wireless antenna: To receive and transmit the wireless data.
POWER: The Power socket is where you will connect the power adapter. Please use the
power adapter provided with this TL-MR3420 3G/3.75G Wireless N Router.
WAN: This WAN port is where you will connect the DSL/cable Modem, or Ethernet
1,2,3,4 (LAN): These ports (1, 2, 3, 4) connect the Router to the local PC(s)
USB: Connect to the USB Modem.
TL-MR3420
Power is on.
Power is off.
The Router is initializing.
The Router is working properly.
The Router has a system error.
The Wireless function is enabled.
The Wireless function is disabled.
A device is linked to the corresponding port but there is no activity.
An active device is linked to the corresponding port.
No device is linked to the corresponding port.
The USB 3G dongle is connected.
Data is received or sent through the 3G dongle.
No device is linked to the USB port.
A wireless device is connecting to the network by QSS function.
This process will last in the first 2 minutes.
A wireless device has been successfully added to the network by
QSS function.
A wireless device failed to be added to the network by QSS
function.
Table 1-1 The LEDs description
Figure 1-2 Rear Panel sketch
-4-
3G/3.75G Wireless N Router
Indication