Using the SERIAL connector

The serial connector which is on the side connector panel of the projector conforms to the RS-232C interface specification, so that the projector can be controlled by a personal computer which is connected to this connector.

Connection

Computer

SERIAL(female)

D-Sub9p (male)

Communication cable

NOTE:

BUse a proper communication cable which is suitable for the personal computer to connect the serial connector and the personal computer.

Pin layout and signal names for SERIAL connector

6 9

Communications settings

Signal level

RS-232C

Sync. method

Asynchronous

Baud rate

9600 bps

Parity

None

Character length

8 bits

 

 

Stop bit

1 bit

 

 

X parameter

None

 

 

S parameter

None

Basic format

The data sent from the computer to the projector is transmitted in the format shown below.

STX Command : Parameter ETX

 

 

 

 

 

 

 

 

Start byte

 

1 byte

End byte

(02h)

 

 

 

 

bytes (03h)

3 bytes

1 byte–5

1 5

D-SUB 9-pin connector seen from outside

Pin

Signal

Contents

No.

name

 

 

 

 

#

 

NC

$

TXD

Transmitted data

%

RXD

Received data

 

 

 

&

 

NC

 

 

 

'

GND

 

 

 

 

(

DSR

 

)

CTS

Connected internally

*

RTS

 

+

 

NC

NOTE:

BThe projector can not receive the command for 10 seconds after the lamp is switched on. Wait 10 seconds before sending the command.

BIf sending multiple commands, check that a response has been received from the projector for one command before sending the next command.

BWhen a command which does not require parameters is sent, the colon (:) is not required.

BIf an incorrect command is sent from the personal computer, the “ER401” command will be sent from the projector to the personal computer.

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Panasonic TQBH9003-6, PT-L750U R manual Using the Serial connector, Connection, Basic format, Pin Signal Contents

PT-L750U R, TQBH9003-6 specifications

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