Extron Electronics FOXBOX Tx_Rx DVI Plus User Guide - Manual (Page 9)

General System Operation
The FOXBOX Tx VGA transmitter inputs VGA-UXGA RGB video.
The FOXBOX Tx VGA/YUV transmitter inputs YUV video or VGA-UXGA RGB video.
The FOXBOX Tx DVI transmitter inputs a single link of DVI video.
All three transmitters input audio and one-way (transmitter-to-receiver) RS-232 serial
communication (for applications such as projector control). The transmitters convert all of
their inputs into a proprietary signal and output the signal on a single fiber optic cable to the
receiver. An optional return (receiver-to-transmitter) stream of serial RS-232 communications,
such as projector responses, requires a second fiber optic cable. Rather than the return
RS-232 communications, the receivers can be configured to output a daisy-chained primary
fiber optic signal to another receiver.
The FOXBOX Rx VGA receiver outputs VGA-UXGA RGB or YUV video.
The FOXBOX Rx DVI receiver outputs a single link of DVI video.
The receivers convert the proprietary signal(s) back to video (either RGB, YUV, or DVI as
applicable to the model), audio, and serial RS-232 communication and output the signals
locally. If either RS-232 return or daisy-chained communications are implemented (a second
fiber optic cable is installed), the receiver outputs a proprietary signal on the second fiber
optic cable. For video resolutions up to 1600 x 1200 or 1920 x 1200, the video output of the
receiver is a perfect, pixel-for-pixel recreation of the video signal input to the transmitter.
The FOXBOX VGA transmitter can handle an RGBHV, RGBS, RGsB, or RsGsBs input signal.
The FOXBOX VGA receiver can output RGBHV or RGsB video, as selected by the user, when
the input is RGB. The FOXBOX VGA receiver can output YUV video when the input is YUV
video to a FOXBOX VGA/YUV transmitter only.
NOTE: When YUV video is input to a FOXBOX Tx VGA/YUV, the output of the receiver is
YUV video only. Neither unit can convert the video into the RGB format.
The transmitter and receiver have image and audio adjustments available under RS-232
control. Both units have image, audio, and fiber light status and lost-light alarm indicators.
The receivers have built-in alternating pixels, color bars, and grayscale test patterns to assist
in setting up the display equipment.
FOXBOX Tx/Rx • Introduction 3