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Appendix C Controlling The Multiple Product; Connecting The Cable; Rs-232c Configurations - HP LD4700 - Widescreen LCD Digital Signage Display User Manual

Hp ld4200 and ld4700 lcd monitors user guide.
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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
D-Sub
(Female)
ENWW
7-Wire Configurations
(Standard RS-232C cable)
Monitor
D-Sub 9
(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)
Connecting the Cable
Monitor
3
TXD
2
RXD
5
GND
6
DSR
4
DTR
8
CTS
7
RTS
D-Sub 9
(Female)
41

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