Guntermann & Drunck FIBREVision-USB 2.0 - Handbuch (Seite 43)

Further information
G&D FIBREVision-USB 2.0 · 14
Temperature warnings
The temperature in both the user module and the computer module of the
FIBREVision-USB 2.0-MC4 variant is permanently monitored.
Before the temperature reaches the critical value, the user is warned by several alarm
signals:
Support of any resolution
The FIBREVision system usually supports all resolutions that can be transmitted
through a single link interface according to DVI specification 1.0. This especially
applies for the pixel rate which can be between 25 MHz and165 MHz.
Common timing standards such as VESA DMT and VESA SMT transmit resolu-
tions between 640 x 480 pixels at 60 Hz and 1600 × 1200 pixels at 60 Hz.
1920 × 1200 pixels at 60 Hz are transmitted according to VESA CVT-RB.
Almost any refresh rate and resolution within the technical constraints can be trans-
mitted. The available display modes are largely dependent on the applied graphics
card, graphics driver, operating system and connected monitor.
The image data that are transmitted from the computer to the computer module
(FIBREVision-CPU) are forwarded to the monitor of the remote console with the
same timing. Frequencies and the signal’s image position at the computer module
correspond to those at the graphics output.
IMPORTANT: To protect the device from overheating, the video signal of the chan-
nels 2 to 4 is switched off when the temperature reaches the critical value!
Alarm level Action
≥ 70 °C Blinking Sys-LED at device.
≥ 71 °C All four monitors of the user module display the image with a blinking frame.
≥ 72 °C All four monitors of the user module display the image with a fast blinking
frame.
≥ 73 °C Video channels 2 to 4 are switched off; the monitors 2 to 4 display no image.
The monitor of video channel 1 still displays the image with a fast blinking
frame.
NOTE: When generating the video signal, some graphics cards differentiate
between digital and analog output. Such graphics cards put out digital image sig-
nals with partly non-standardised timings. Such timings do not comply with the
monitor’s default to reduce the frequencies of digital signals.
This usually has no affect on the FIBREVision system and the digitally connected
displays. Due to the non-standardised timing, however, analog monitors might
not be able to display both image size and image position properly.