Connections

SERIAL Terminals connection

The SERIAL terminal is used when the Display is controlled by a computer.

COMPUTER

RS-232C Straight cable

D-sub 9p

(Female)

 

Notes:

Use the RS-232C straight cable to connect the computer to the Display.

The computer shown is for example purposes only.

Additional equipment and cables shown are not supplied with this set.

The SERIAL terminal conforms to the RS-232C interface specification, so that the Display can be controlled by a computer which is connected to this terminal.

The computer will require software which allows the sending and receiving of control data which satisfies the conditions given below. Use a computer application such as programming language software. Refer to the documentation for the computer application for details.

Communication parameters

Signal level

RS-232C compliant

 

 

Synchronization method

Asynchronous

Baud rate

9600 bps

Parity

None

Character length

8 bits

Stop bit

1 bit

Flow control

-

Basic format for control data

The transmission of control data from the computer starts with an STX signal, followed by the command, the parameters, and lastly an ETX signal in that order. If there are no parameters, then the parameter signal does not need to be sent.

STX

 

C1

C2

C3

 

:

 

P1

P2

P3

P4

P5

 

ETX

 

 

 

 

 

 

 

 

 

 

 

 

Colon

 

 

Parameter(s)

 

 

End

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1-5 bytes)

 

 

(03h)

 

 

Start

 

 

 

3-character

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(02h)

 

 

 

command (3 bytes)

 

 

 

 

 

 

 

 

 

 

Notes

If multiple commands are transmitted, be sure to wait for the response for the first command to come from this unit before sending the next command.

If an incorrect command is sent by mistake, this unit will send an ER401 command back to the computer.

5

4

3

2

1

6

7

8

 

9

Pin layout for SERIAL Terminal

(Male)

Signal names for D-sub 9P connector

Pin No.

Details

 

2

RXD

 

3

TXD

 

5

GND

4

6

Non use

7

8

Non use

1

9

NC

These signal names are those of computer specifications.

Communication parameters

Command

Parameter

Control details

 

 

 

PON

None

Power ON

POF

None

Power OFF

AVL

**

Volume 00 - 63

 

 

 

AMT

0

Audio MUTE OFF

 

1

Audio MUTE ON

IMS

None

Input select (toggle)

 

RF1

RF input

 

AV1

AV1 input

 

AV2

AV2 input

 

YU1

YPbPr input

 

HD1

HDMI 1 input

 

HD2

HDMI 2 input

 

HD3

HDMI 3 input

 

PC1

PC input

DAM

None

Screen mode select (toggle)

 

FULL

16:9

 

JUST

JUST

 

NORM

4:3

With the power off, this display responds to PON command only.

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Panasonic TH-42PRT12U Serial Terminals connection, Communication parameters, Basic format for control data