Component takes the signal separation a stage further by utilising 3 cables to channel each of the basic signal 'components'. Most high-end video equipment will output in component form and by nature this offers the highest video quality. Connection is usually by phono (RCA) or BNC's and colour coded red, green and blue. Scart to RGB/component cables are available but will only work if your equipment supports RGB/component out.
3.5mm audio plug
Most projectors will offer audio support with low power speakers. These are intended primarily for use in small meeting rooms where sound quality is not a major requirement. Speakers are usually 1-3 watts output and sound tends to be tinny. For audio support in a larger environment or for showing video's/DVD's we recommend feeding directly into your PA system or using active multimedia speakers.
Many projectors these days have some form of control system for the purpose of using the remote control as a computer mouse (useful for stand up presentations), or for controlling the functionality of the projector.
In the first case, mouse control (if supported) is achieved simply by connecting the computer's mouse port to the projector's mouse port using the appropriate cable (serial, USB or PS/2). The remote control then communicates with the computer via infra red to the projector and cable to the computer. Remember to point the remote at the projector, not the computer!
In the second case, control is via RS232 (command protocol) and generally using a serial connection (9-pin D-sub). It is necessary to have the right software to send RS232 commands if you want to control the projector from the computer. Signal transmission is limited in length according to transfer speed but can be increased using a line driver (booster)
|9-pin D-sub serial plug||Serial cable||PS/2 cable||USB cable|
There are an increasing number of projectors now capable of wireless data transfer and the technology is improving all the time. This method eliminates the need for extensive wiring (except power) and is fine for still images and presentations/song display but has some way to go on video streaming due to the limited bandwidth available. This is likely to improve.
It is possible to achieve wireless video connectivity using a video signal transmitter system - essentially a transmitter connected to the source, converting the signal to radio frequency (RF), sending to a receiver which is directly connected to the projector. Reliability is good but restricted to around 30m for standard models or up to 5km with appropriate amplification.
Some manufacturers are introducing networkable projectors which gives the advantage of being able to display via the projector from any computer on the network. Wireless networkable projectors are also being introduced.
PROmotivations can provide all of the above products and advise on your specific requirements. We offer a full professional installation service to bring you the best solution according to your requirements and environment.