Specifications

Chassis Plans CPX1-241 Technical Reference Appendix A – Display Serial Control Programming
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Appendix A – Display Serial Control Programming
The LCD provides for remote serial RS232 or Ethernet control for the LCD through the rear panel Control Port
as shown below.
RS-232 Serial Control
Baud rate 2400, 8 bits, 1 stop bit and no parity
PIN# Description
2 RS-232 Rx Data
3 RS-232 Tx Data
5 Ground
Mating connector : DB9 Female
Ethernet Control
Please see Appendix F for information regarding Ethernet Control of the panel. The following command set
remains the same for Ethernet control as compared to Serial control.
LCD Controller Serial/Ethernet Control Functions
The OSD functions are controlled through the following RS-232 commands.
The RS-232 program can be custom-tailored to fit the application or it can be used as provided by Chassis
Plans on request. Please contact Chassis Plans for additional information.
Function Command Description Remark
Menu button 0xf7 Menu button pressed Button equivalent
Select-down button 0xfa Select-down button pressed Button equivalent
Select-up button 0xfb Select-up button pressed Button equivalent
Right/+ button 0xfc Right/+ button pressed Button equivalent
Left/- button 0xfd Left/- button pressed Button equivalent
Table A-1 - Commands to Implement Switch Mount Control Buttons
54
6
3
1
7
8
9
Mating face of
RS-232 DB9 Male