2IntroductionThis manual describes the commands used to control an NEC-made projector from a PC or other external device. Aprojector can be controlled by exchanging commands with an external device connected via a serial port or network.The manual assumes basic knowledge of projectors. For information about the functions of the model in use and howto adjust the device, see the operation manual of the projector .For information about the connection between theprojector and an external device, see "1 Connecting an External Device" (page 5). Connect an external device asappropriate for the usage environment of the projector.Models for which the control commands are availableSee the Appendix "Connecting an External Device".ConventionsFor information about how commands and responses are expressed in this manual, see "2.1 Understandingcommand details" (page 10).NOTES1. The contents of this reference manual may not be reprinted in part or whole without permission.2. The contents of this reference manual are subject to change without notice.3. Great care has been taken in the preparation of this reference manual; however, should you notice anyquestionable points, errors or omissions, please contact us.4. Notwithstanding article 3. NEC will not be responsible for any claims on loss of profit or other matters deemed toresult from using this reference manual.