Interactive Video Network

The remote control is an integral part of the system. You can use a remote control to configure and operate the ViewStation FX or VS4000. Once you have the system set up and running, press the yellow INFO button on the remote control for a basic description of the remote control buttons.

Complete instructions for this new system may be found in: ViewStation FX/VS 4000 User's Guide (~2.8Mb Adobe Acrobat pdf document).

This camera can move back and forth and zoom in and out. The adjustable camera is typically used to show the lecturer, a projection screen or a blackboard. Arrow A points to a feature that enables the camera to pan and zoom.

Unlike the adjustable camera, the stationary camera cannot move back and forth or zoom in and out. You must either physically move it or replace its lens in order to change what it receives. This camera is typically used to show the audience.

Elmo (shown top left) functions like an overhead projector. You can use it to broadcast photographs, illustrations, text and slides. Also, some sites transmit slides with a slide projector (shown bottom left).

The IVN system is voice activated. You will therefore receive that site from which someone is speaking. Except for the originating site, participating sites are muted unless there is a question or comment. Placement of the microphones is critical so that the entire room is coverage without reverberation or other audio problems.

	Ceiling Microphones Many sites use omni-directional ceiling microphones. Besides the wide area of coverage, another advantage of using is that the wiring and microphones are out of the way and keeps the floor and tables clear of possible obstructions.
	Table Microphones Some sites use directional table microphones. You must speak towards one in order to be heard clearly. Similar to ceiling microphones, placement must be done in such a way as to provide total room coverage without audio problems. An unfortunate side effect is that you must be careful not to trip over the wires on the floor or move the microphones.

MONITORS & PROJECTION SYSTEMS
	Monitors Most sites have two monitors, one to display what is transmitted and the other to display what is received from a remote site. Some, like CBL, have additional monitors so that the lecturer can view the remote sites while facing the local audience.
	Projection System Some sites use a projection system instead of the two monitors mentioned above. A typical three-color projector is shown at the left. The images are displayed on a screen (shown bottom left). One projector and screen are used to display transmitted or received images.