Digital broadcasting station

Fig. 1 - The appearance of a digital broadcasting station operating in the DVB-T standard

A full set of a digital broadcasting station includes:

MSD-100 QPSK Modulator
MCD-100 QAM Modulator
MCD-110 QAM Modulator
MTD-100 COFDM (2k) Modulator
MTD-200 COFDM (8k) Modulator
MTS-100 DVB/MPEG-2 Transport streams multiplexer
EMS-100 MPEG-2 Encoder
SFN-8k COFDM Modulator for single-frequency networks
SRD-100 SAT receiver
СRD-100 QAM receiver
CRD-105 QAM receiver
TRD-100 COFDM receiver
KS/CD-100 Transmodulator
MSA-200 Conditional access system
TVC-DVB DVB Converter
TVC-DVB/N DVB Converter
IPTV-100 DVB/IPTV Shaper

The modules do not have any control element (except a DVB converter), module parameter change and module parameter control are effected on a PC via an interface RS-485 by means of a DVB Manager application. If all the parameters are already set the station must not be connected to a PC, all the changed parameters are saved into a permanent memory of the modules. An interface converter RS-232/RS-485 is located in the case of a communication cable connector (socket) connected to a connector RS-232 PC (a cable of a black colour). The other end of the cable (a plug) is connected to a connector of the last station module. Interface connectors should be installed between the modules. A matching terminator should be installed into a free connector of the last module if only one station is used. If there are several DVB head-ends in service then an interstation junction cable should be installed into this connector. The matching terminator should be installed into a connector of the last module of the last head-end (counting from the PC). An example of interface connecting is shown in fig.2.

Fig. 2 - Example of digital module connecting

User Guide for DVB-Manager Application: download pdf 804kb