ViewSonic VT3205LED VT3205LED User Guide M Region (English) - Page 48

RS232 Protocol

Get ViewSonic VT3205LED PDF manuals and user guides
UPC - 766907531213
View all ViewSonic VT3205LED manuals
Add to My Manuals
Save this manual to your list of manuals

Page 48 highlights

ENGLISH Other Information RS232 Protocol 1. Introduction This document describes the hardware interface spec and software protocols of RS232 interface communication between Viewsonic Commercial Display and PC or other control unit with RS232 protocol. The protocol divide into three sections: • Set-Function • Get-Function • Remote control pass-through mode ※In below document, "PC" will represents all the control units that can sent or receive the RS232 protocol command. 2. Description 2.1 Hardware specification Viewsonic LCD communication port in the rear side (1) Connector type: DSUB 9 Pin Male (2) Pin Assignment Male DSUB 9Pin (outside view) 12 345 6789 Pin # Signal Remark 1 NC 2 RXD Input to LCD Monitor 3 TXD Output from LCD Monitor 4 NC 5 GND 6 NC 7 NC 8 NC 9 NC frame GND * Use of crossover (null modem) cable required for use with PC. 2.2 Communication Setting • Baud Rate Select: 9600bps (fixed) • Data bits: 8bits (fixed) • Parity: None (fixed) • Stop Bits: 1 (fixed) 2.3 Command Message Reference PC sends to Monitor command packet followed by "CR". Every time PC sends control command to the Monitor, the Monitor shall response as follows: 1. If the message is receives correctly it will send "+" (02Bh) followed by "CR" (00Dh) 2. If the message is receives incorrectly it will send "-" (02Dh) followed by "CR" (00Dh) ViewSonic 37 VT3205LED

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
37
Other Information
ENGLISH
ViewSonic
VT3205LED
1. Introduction
This document describes the hardware interface spec and software protocols of RS232 interface
communication between Viewsonic Commercial Display and PC or other control unit with RS232
protocol.
The protocol divide into three sections:
• Set-Function
• Get-Function
• Remote control pass-through mode
※
In below document, “PC” will represents all the control units that can sent or receive the
RS232 protocol command.
2. Description
2.1 Hardware specification
Viewsonic LCD communication port in the rear side
(1) Connector type: DSUB 9 Pin Male
(2) Pin Assignment
Male DSUB 9Pin
(outside view)
12
345
6
7
8
9
Pin
#
Signal
Remark
1
NC
2
RXD
Input to LCD Monitor
3
TXD
Output from LCD Monitor
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC
frame
GND
* Use of crossover (null modem) cable required for use
with PC.
2.2 Communication Setting
• Baud Rate Select: 9600bps (fixed)
• Data bits: 8bits (fixed)
• Parity: None (fixed)
• Stop Bits: 1 (fixed)
2.3 Command Message Reference
PC sends to Monitor command packet followed by “CR”. Every time PC sends control command to
the Monitor, the Monitor shall response as follows:
1. If the message is receives correctly it will send “+” (02Bh) followed by “CR” (00Dh)
2. If the message is receives incorrectly it will send
“-” (02Dh) followed by “CR” (00Dh)
RS232 Protocol