Extron electronic 4LQXI, 4LDXI manual System 4xi Features

Chapter 1 • Introduction and Features

System 4xi Features

Universal Video Inputs

The System 4xi has four universal inputs, each capable of accepting all computer RGB signals from 15 kHz to 150 kHz, any composite video standard signals (NTSC or PAL) and S-video (S-VHS) signals. There are no optional modules to purchase for each input signal type.

Quad-standard Decoder

The System 4xi is compatible with all standard video formats including NTSC 3.58, NTSC 4.43, PAL and SECAM.

Balanced/Unbalanced Audio Inputs

Every System 4xi is capable of switching up to four balanced or unbalanced, left and right stereo audio signals. Audio, input through professional-style captive screw connectors, can be switched to follow any video or RGB input signal, or it may be switched separately for added flexibility (see “Breakaway” below).

Audio Follow/Breakaway

When switching inputs, the System 4xi can either select audio and video from the same source (Audio Follow) or select audio from one source and video from another (Breakaway).

Three-line Adaptive Comb Filter

Abuilt-in, three-line adaptive comb filter helps to provide a crisp, stable output from the System 4LDxi and 4LQxi.

Built-In Line Doubler/Quadrupler (scan doubler/quadrupler)

The System 4LDxi and 4LQxi include a built-in NTSC or PAL compatible line doubler or line quadrupler (4LQxi only) that is capable of line-doubling/ quadrupling composite video, S-video or RGB video (Targa or document camera) signals. The signal also passes through a digital noise filter to improve the picture. The line-doubled/quadrupled output results in a sharper image with less noticeable scan lines and “video noise.”

300 MHz RGB Video Bandwidth

The 300 MHz RGB video bandwidth of the System 4xi makes it two to three times the performance of any other presentation switcher.

LCD Menu-Driven Picture and Programming Controls

The System 4LDxi ’s LCD menu makes setup and programming of its features and functions easy and flawless. An alphanumeric display allows for any of the line-doubler/quadrupler controls such as color, hue and contrast to be adjusted to exact specifications for each input.

RGB Output

The System 4xi video output will be RGBS or RGBHV if the selected input is configured to be line-doubled or line-quadrupled. If the selected input is not configured to be line-doubled/quadrupled, the output video format will be the same as the input.

RS-232 Control

The System 4xi has built-in RS-232 control for external/third party control of any of its features or functions.

Triple-Action Switching™ RGB Delay Switching

Triple-Action Switching makes it possible to have “seamless” picture switching. The System 4xi may be programmed to switch the RGB signals to the projector at a specified time after the sync is switched (0 to 5 seconds, in 1/2 second increments). The audience will briefly see a blank screen while the projector “locks on” to the input signal.

Extron • System 4xi Switcher Series • User’s Manual 1-2