ITNM Systems IDM100 Integrated Digital TV Monitoring

Integration in networks

The IDM100 series are applicable in several kinds of network architecture. Implementation is possible in DVB-C/S/T and IPTV-networks.

Centralised monitoring

Normally the Monitor is placed at the location where centralised processing of digital radio and television services is performed; the head-end or digital play-out centre. From one or more of these source locations, local head-ends are supplied with signal by means of – in most cases redundant - optical networks or microwave links.

Monitoring at home

In most cases the operating company owns a Network Control Centre at their disposal. At that place Workstations are operating. However, control and monitoring is not only limited to that location. At home or at any other place, operational control is possible via Internet. By use of the audiovisual options within the IDM100 one is not dependent of the availability of the television signal, what is important for network engineers working in stand-by duty.

Decentralised monitoring

For monitoring on local level, decentralised head-ends are the most suitable locations for the Local Zapper. However, the functionality is not only limited to that.

Local monitoring

Local Zappers can be installed in bigger amounts further on in the distribution chain – even up to at home - creating a wide branched monitoring network. Communications among the several components of the IDM100 is done by common Ethernet.


The following drawings display examples of implementation in several kinds of network architecture. In order to have a better view you can click the drawing with your mouse that enables a bigger window to open.

System design IDM100

Communication among the several components is done through Ethernet, directed by the Analyzer. Transport streams are centrally imported in one or more Monitors and locally in one or more Local Zappers. Workstations can be either connected directly or via Internet. The Zapper takes care of the audiovisual functionality in relationship with an external descrambler.

Integration in a DVB-C network

DVB-C stands for Digital Video Broadcasting Cable where in most cases for distribution of radio and television signals, a hybrid network of optical fibre for the mainstream and coaxial cable for the local network is used. The method of transfer is QAM (Quadrature Amplitude Modulation).

Integration in an IPTV network

For the distribution of radio and television signals by means of an IPTV network, the local connection from the distribution centre to the customer in most cases is performed through a telephone line by means of some ADSL (Asynchronous Digital Subscriber Line) version.

Integration in a DVB-T network

DVB-T stands for Digital Video Broadcasting Terrestrial by which distribution is performed wireless by means of local and regional transmitters. The method of transfer is OFDM (Orthogonal Frequency Division Multiplex).

Integration in a DVB-S network

DVB-S stands for Digital Video Broadcasting Satellite by which distribution also is performed wireless, but in this case by means of a communications satellite. The method of transfer is QPSK (Quadrature Phase Shift Keying).


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