Appendix C Controlling The Multiple Product; Connecting The Cable; Rs-232C Configurations - HP LD4200tm - Widescreen LCD Interactive Digital Signage Display User Manual

C Controlling the Multiple Product
Use this method to connect several monitors to a single computer. You can control several monitors at
a time by connecting them to a single computer.

Connecting the Cable

Connect the RS-232C cable as shown in the following illustration. The RS-232C protocol is used for
communication between the computer and the monitor. You can turn the monitor on/off, select an input
source or adjust the OSD menu from the computer.

RS-232C Configurations

PC
RXD 2
TXD 3
GND 5
DTR 4
DSR 6
RTS 7
CTS 8
48

Appendix C Controlling the Multiple Product

7-Wire Configurations
(Standard RS-232C cable)
Monitor
D-Sub D-Sub 9
(Female) (Female)
3 TXD RXD
2 RXD TXD
5 GND GND
6 DSR DTR
4 DTR DSR
8 CTS RTS
7 RTS CTS
3-Wire Configurations
(Not Standard)
PC
2
3
5
4
6
7
8
D-Sub
(Female)
Monitor
3 TXD
2 RXD
5 GND
6 DSR
4 DTR
8 CTS
7 RTS
D-Sub 9
(Female)
ENWW