MITSUBISHI ELECTRIC MDT521S - Manual (Page 36)

English
English-35
Controlling the LCD monitor via RS-232C/RS-485 Remote Control
This LCD monitor can be controlled by the computer connected by an RS-232C cable or a CAT5 cable via the supplied CAT5 Tx
BOX.
Functions that can be controlled by a personal computer are:
• Power ON or OFF
• Switching between input signals
Connection
Connection by RS-232C (For RS-232C cable, the reverse type cable should be used.)
Connection by CAT5 RS-485 (For CAT5 cable, the straight type cable should be used)
NOTE:
If your PC (IBM or IBM compatible) is equipped only with a 25-pin serial port connector, a 25-pin serial port adapter is required.
Contact your dealer for details.
1) Interface
PROTOCOL
BAUD RATE
DATA LENGTH
PARITY BIT
STOP BIT
FLOW CONTROL RS-232C/RS-485 (CAT5)
9600 [bps]
8 [bits]
NONE
1 [bits]
NONE
This LCD monitor uses RXD, TXD and GND lines for RS-232C control.
2) Control command diagram
The command is structured by the address code, function code, data code and end code. The length of the command is
different for each function.
HEX
ASCII
Address code
30h 30h
‘0’ ‘0’
Function code
Function
Function
Data code
Data
Data
End code
0Dh
[Address code] 30h 30h (In ASCII code, ‘0’ ‘0’) fi xed.
[Function code] A code of each fi xed control move.
[Data code] A code of each fi xed control data (number) and not always indicated.
[End code] 0Dh (In ASCII code, ‘ ‘ ) fi xed.
CAT5 Tx BOX
(supplied)
RS-232C cable
CAT5 cable
To CAT5
OUT To RS-232C
IN
To CAT5
OUT To CAT5
RGB5 IN To CAT5
OUT To CAT5
RGB5 IN
CAT5 cable
USB cable
Type A Type B
PC
Monitor Monitor
This connection isn’t necessary when the USB COM port is used.
PC
RS-232C cable RS-232C cable
To RS-232C OUT To RS-232C IN To RS-232C OUT To RS-232C IN
Monitor Monitor