NEC Solutions (America), Inc.Visual SystemsMT1055/1056 Installation Datawith Optional MT13ZL Short Focus Zoom Lens v 3.0Page 7Control CodesFunction Code DataPOWER ON 02H 00H 00H 00H 00H 02HPOWER OFF 02H 01H 00H 00H 00H 03HINPUT SELECT RGB1 02H 03H 00H 00H 02H 01H 01H 09HINPUT SELECT RGB2 02H 03H 00H 00H 02H 01H 02H 0AHINPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EHINPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13HINPUT SELECT PC CARD VIEWER 02H 03H 00H 00H 02H 01H 1FH 27HPICTURE MUTE ON 02H 10H 00H 00H 00H 12HPICTURE MUTE OFF 02H 11H 00H 00H 00H 13HSOUND MUTE ON 02H 12H 00H 00H 00H 14HSOUND MUTE OFF 02H 13H 00H 00H 00H 15HON SCREEN MUTE ON 02H 14H 00H 00H 00H 16HON SCREEN MUTE OFF 02H 15H 00H 00H 00H 17HCable ConnectionCommunication Protocol:Baud Rate: 38400 bpsData Length: 8 bitsParity: No ParityStop Bit: One bitX on/off: NoneCommunications: Full duplexPC Control Connector (DIN-8P)To RxD of PC12345678To TxD of PCTo GND of PCNOTE 1: Pins 2, 3, 5, 6 and 8 are used inside the projector.NOTE 2: For long cable runs it is recommended to set communication speed within projector menus to 9600 bps.