TP-Link AC1900 , 1.4.2 The Rear Panel

Archer C9
AC1900 Wireless Dual Band Gigabit Router
(USB 1)
Flashing The router is identifying the device connected to the USB 2.0
port.
On The device is identified successfully.
Off No device is connected to the USB 2.0 port.
(USB 2)
Flashing The router is identifying the device connected to the USB 3.0
port.
On The device is identified successfully.
Off No device is connected to the USB 3.0 port.

Note:
After a device is successfully added to the network by WPS function, the WPS LED will keep on
for about 5 minutes and then turn off.
1.4.2 The Rear Panel
Figure 1-1 Rear Panel sketch
The following parts are located on the rear panel (View from left to right).
 USB 2.0: The USB 2.0 port connects to a USB 2.0 storage device or a USB 2.0 printer.
 Reset/WPS:
Pressing this button for less than 5 seconds enables the WPS function. If your client devices,
such as wireless adapters, that support Wi-Fi Protected Setup, then you can press this
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