Dell S300 manual Glossary

Page 77

dB — decibel A unit used to express relative difference in power or intensity, usually between two acoustic or electric signals, equal to ten times the common logarithm of the ratio of the two levels.

Diagonal Screen — A method of measuring the size of a screen or a projected image. It measures from one corner to the opposite corner. A 9 ft high, 12 ft wide, screen has a diagonal of 15 ft. This document assumes that the diagonal dimensions are for the traditional 4:3 ratio of a computer image as per the example above.

DHCP — Dynamic Host Configuration Protocol A network protocol that enables a server to automatically assign a TCP/IP address to a device.

DLP® Digital Light Processing™ Reflective display technology developed by Texas Instruments, using small manipulated mirrors. Light passing through a color filter is sent to the DLP mirrors which arrange the RGB colors into a picture projected onto screen, also known as DMD.

DMD — Digital Micro-Mirror Device Each DMD consists of thousands of tilting, microscopic aluminum alloy mirrors mounted on a hidden yoke.

DNS — Domain Name System An internet service that translates domain names into IP addresses.

Focal Length — The distance from the surface of a lens to its focal point.

Frequency — It is the rate of repetition in cycles per seconds of electrical signals. Measured in Hz (Hertz).

HDCP — High-Bandwidth Digital-Content Protection A specification developed by Intel™ Corporation to protect digital entertainment across digital interface, such as DVI and HDMI.

HDMI — High-Definition Multimedia Interface HDMI carries both uncompressed high definition video along with digital audio and device control data in a single connector.

Hz (Hertz) — Unit of frequency.

Keystone Correction — Device that will correct an image of the distortion (usually a wide-top narrow-bottom effect) of a projected image caused by improper projector to screen angle.

Maximum Distance — The distance from a screen the projector can be to cast an image that is usable (bright enough) in a fully darkened room.

Maximum Image Size — The largest image a projector can throw in a darkened room. This is usually limited by focal range of the optics.

Minimum Distance — The closest position that a projector can focus an image onto a screen.

Glossary

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Contents User’s Guide March 2010 Rev. A01 Contents Adjusting the Projected Image Troubleshooting Your Projector Your Dell Projector Package ContentsAbout Your Projector Your Dell Projector 1716 Connecting Your ProjectorConnecting to a Computer Monitor Loop-Through Connection Using VGA Cables Connecting a Computer Using an RS232 cable Connecting a DVD Player Connecting a DVD Player Using a Composite Video Cable Connecting a DVD Player Using a Component Video Cable Connecting a DVD Player Using an Hdmi Cable Connecting to Local Area Network 12V DC Plug Connection With Commercial RS232 Control Box Turning Your Projector Off Using Your ProjectorTurning Your Projector On Raising the Projector Height Adjusting the Projected ImageAdjusting the Projector Focus Projectorto screen distance Adjusting Projection Image SizeMax 44.6 134 178 223 294 Using the Control Panel On-screen display OSD is displayed Using the Remote Control Your eyes VGA Installing the Remote Control Batteries Operating Range With Remote Control AUTO-ADJUST Using the On-Screen DisplayInput Select Picture in PC Mode Picture in Video Mode Display in PC Mode Using Your Projector Display in Video Mode Lamp Using Your Projector Using Your Projector Network Information Using Your Projector Using Your Projector Using Your Projector Using Your Projector Using Your Projector Using Your Projector Managing the Projector From Web Management Configuring the Network SettingHome Managing PropertiesNetwork Settings Projector Status and Control Using Your Projector Mail Alert Password Setting Login Firmware Update Using Your Projector Using Your Projector Tips Using Your Projector Problem Possible Solution Troubleshooting Your ProjectorProblem Problem Problem Amber OFF Guiding SignalsChanging the Lamp Troubleshooting Your Projector Specifications Specifications12306mm RS232 port One mini-DIN 6-pin for RS232 RS232 Pin Assignment RS232 Protocol Command typesCompatibility Modes Analog/Digital ResolutionVisit support.dell.com Contacting DellGlossary Appendix GlossaryGlossary Glossary Numerics IndexPicture Advanced Index
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