Mitsubishi MDT521S User Manual download pdf (Page 36)

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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

Data code

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

To CAT5

OUT

To CAT5

RGB5 IN

To CAT5

OUT

To CAT5

RGB5 IN

CAT5 cable

USB cable

Type A Type B

Monitor Monitor

This connection isn’t necessary when the USB COM port is used.

RS-232C cable RS-232C cable

To RS-232C OUTTo RS-232C IN To RS-232C OUTTo RS-232C IN

Monitor Monitor

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Mitsubishi MDT521S User Manual Page 36

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