Dell S300wi Projector - Manual (Page 27)

Connecting Your Projector 27
2 To enable Interactive Pen, the 2nd connection between computer
and projector is required. 3 options for your computer and projector
connection are available:
a use Mini USB cable
b use LAN cable (need to install Dell Wireless Application
Software)
c use WLAN (need to install Dell Wireless Application Software)
If you use LAN or WLAN connection, ensure that Wireless / Network
is turned on first.
3 Automation Screen is optional.
4 If the distance between your PC/laptop and projector is over 5
meters, USB hub is recommended to your installation.