Panasonic PTAE4000 Operating Instructions - Page 42

Appendix Technical Information Serial terminal The serial connector which is on the 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 connecter. JJ Connection D-sub 9 pin (male) Serial terminal (female) Computer JJ Pin assignments and signal names Pin No. Signal name TXD RXD GND RTS CTS Contents NC Transmitted data Received data NC Earth NC Connected internally NC JJ Communication settings Signal level Sync. method Baud rate Parity RS-232C Asynchronous 9 600 bps None JJ Basic format Character length Stop bit X parameter S parameter 8 bits 1 bit None None STX Command : Parameter Start byte (02h) 3 bytes 1 bytes 1 byte 4 bytes ETX End (03h) The data streaming from the computer will start with STX, and proceed to Command, Parameter and end with ETX. You can add the required parameter. The projector can not receive any command for 10 seconds after the lamp is switched on. Wait 10 seconds before sending the command. If sending multiple commands, check that a response has been received from the projector for one command before sending the next command. When a command which does not require parameters to be sent, the colon (:) is not required. If an incorrect command is sent from the personal computer, the ER401 command will be sent from the projector to the personal computer. 42 - ENGLISH