Dell S300w Projector - Manual (Page 21)

Connecting Your Projector 21
Professional Installation Options: Installation for Driving Automatic
Screen
NOTE: Use the dimension of 12V DC plug in 1.7 mm (ID) x 4.00 mm (OD) x 9.5 mm
(shaft) to connect the automatic screen with the projector.
12V DC Plug
1 Power cord
2 12V DC Plug
3 Automatic Screen
1
2
3