LG ProBeam GRF510N Owner's Manual page 138

RS-232C(Serial) With RS-232C(Serial) Cable
DE9(D-Sub 9pin) Type
(PC)
•
You need to purchase the RS-232C (DE9, D-Sub 9pin female-to-female type)
to RS-232C(Serial) cable required for the connection between the PC and the
projector, which is specified in the manual.
•
The connection interface varies by model.
RS-232C configurations
Figure 1: RS-232 Connection Diagram
RXD
TXD
DTR
GND
DSR
RTS
CTS
* There is no connection to Pin 1 and Pin 9.
2 2
RXD
3 3 TXD
4 4
DTR
5 5
GND
6 6
DSR
7 7
RTS
8 8
CTS
PC Projector
(Projector)
9 6
5 1
5