Televes TOX Series, Руководство пользователя

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COFDM - COFDM CI
10
Subsequently, the TS packet is modulated in the
same COFDM modulation format of its input
(DVB-T standard), and converted to the output
channel (UHF or VHF with a maximum bandwidth
of 8 MHz) using an agile up-converter. The COFDM-COFDM CI transmodulator receives a
digital terrestrial television (DTT) multiplex (DVB-T
standard) and demodulates it to get a transport
stream packet, which is processed to remove
and/or unscramble services. To unscramble, the
transmodulator has a Common Interface slot for
the insertion of a conditional access module (CAM). The programming of the transmodulator operating
parameters (input frequency, output channel
and adaptation of services mainly) is performed
through the universal programmer (ref. 7234).
4. Identifi cation of the system elements
4.1. Introduction
1
3
2
4
CAM
UAMP44
CTRL
PRGM
COFDM-COFDM CI
PWR
6
7
9
5
8
1. COFDM input
2. COFDM output
3. RF input
4. RF 1Ch COFDM
5. Powering BUS connectors 6. Status LED
7. Control BUS connectors
8. Input to insert CAM
9. Programmer / PC connector Insert the smart card completely
into the CAM slot before powering
modules. Card contacts looking
left and forwards when it is being
inserted.
02340036001 003
CTRL
CAM PRGM
A
B
A/V