Operation Manual Part 1

Digital Liquid Cooled UHF
TV Equipment
Description / Test points / Location of units
9946 V1
45321648.01 104 A E
preliminary
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Numéro / Number Doc. Rev. Lan
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16/06/2006
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Information contained is this document is confidential, is THOMSON property and cannot be disclosed in whatever form without prior written authorization of THOMSON.
3.2.3. SIRIUS Description
The inputs are MPEG transport stream(s) carrying information about the program content, the number
of programs and the program data. The standard MPEG transport stream format is ASI (Asynchronous
Serial Interface).
Before modulation the signal is subjected to a heavy error protection process and various interleaving processes.
By these means the receiver will work even during bad transmission conditions and be able to regenerate the
signal in most situations.
The digital exciter SIRIUS is composed of a box in which are mounted some digital cards:
♦ A programmed MediaFLO (FPGA) digital card (rep.1)
♦ A TS/TV card (rep.2)
♦ A TX card (rep.3)
♦ A filter card (rep.4)
♦ A switch/ALE card (rep.5)
♦ A RF preamplifier unit (rep.6)
♦ A RF synthesizer unit (rep.7)
There are also some elements which are:
♦ A main power supply unit(rep.8)
♦ A cooling unit (rep.9) including 2 fans (rep.10)and one PSU (rep.11)
♦ A GPS receiver (option) (rep.12)
♦ A signalization card (LED) (rep.13)
The here after figure shows the main card location of the MediaFLO SIRIUS exciter.