Dell S520 Projector - Manual (Page 22)

22 Connecting Your Projector
Connection With Commercial RS232 Control Box
NOTE: The RS232 (9-pin D-sub female to female pin2-3 swap) cable
is not shipped with your projector. Consult a professional technician
to obtain the cable.
1 Power cord
2 RS232 (9-pin D-sub female to female
pin2-3 swap) cable
3 Commercial RS232 control box
2
3
1