TP-Link TL-WR902AC User Manual page 11

Chapter 1
Port and Button Description
Item
Mode Switch
WAN/LAN
Power
3G/4G USB
WPS
This button is used to switch the operation mode of the router.
This port functions as the WAN port in Router mode and as the LAN port in Hotspot,
Access Point, Range Extender and Client mode.
The port is used to connect the power adapter.
This port is used to plug a 3G/4G modem or a USB disk into.
To establish WPS connection, press this button.
Get to Know About Your Router
Description
4