Firmware Upgrade - Fracarro D-Matrix 8T Instructions D'emploi

Operating instructions
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The length of the complete graphic bar (including the green, grey and white colors) shows the overall available
band for the output mux, while the band immediately used by the programs is green.
As the overall band of whole programs could change during the time, the maximum acquired value since the
last reset (done by pressing RESET PEAK) is shown in grey.
If there is a white section, it shows the available bitrate and therefore the margin that can still be used. If at any
time a band peak reaches and exceeds the maximum, there is no white section and the red overflow led is lit.
The same values numerically are available in the OUTPUT -> MUX1 / MUX2 / MUX3 / MUX4 / MUX5 / MUX6 /
MUX7 / MUX8-> BITRATE section menu.
Therefore the installer should configure the output program list by considering the maximum band required
by each program and monitor the total bitrate for a sufficient period of time to make sure that the overall peak
never overcome the maximum available, but that there is always a minimum margin available to offset any
problems that may occur.
Always assess carefully how to assign the priority position to each program, to ensure that the most important
programs are always guaranteed.
IMPORTANT: to maximize the available band, in standard installations it is advisable to maintain the default
modulation settings (for DVB-T constellation 64QAM, FEC 7/8, guard interval 1/32, number of carriers 2K).
IMPORTANT: to avoid a bitrate overflow issues, the total bitrates must be kept sufficiently lower than the ma-
ximum limit during the modulations setting. Remember that high definition programs, broadcast with dynamic
bitrates, can have broadcast peaks up to 20 Mbit/s. Therefore the installer must carefully monitor the bitrate
peaks during the programming, and find information beforehand about the broadcast modes for the chan-
nels being distributed.

7.FIRMWARE UPGRADE

The D-MATRIX 8T can be updated in the field by uploading the firmware saved on a USB drive, directly on the
module through its USB port (see the programming flowchart).
IMPORTANT: do not remove the USB drive while the update is in progress, because it would block the card.
To obtain the latest firmware and update instructions, refer to the section "software update" in our website
www.fracarro.com
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