The European Commission has signed a 12-year concession contract with the SpaceRISE consortium for the development, construction and operation of the IRIS2 satellite network. The network is intended to serve both public institutions and private entities. It will make it possible to provide secure communications for government institutions, emergency services and the armed forces. At the same time, the system is expected to provide high-speed Internet access to residents of sparsely populated an...
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Coaxial, twisted pair and fiber optic cables in low-current systems.
The CPR regulation does not directly apply to the design and construction of buildings, but it does require ensuring the fire safety of buildings, that is, indirectly, the use of cables with a certain fire-resistance class. The CPR regulation does not impose requirements on EU member states related to the use of specific cables in specific buildings. The requirements for using cables with a specific reaction to fire class in a given type of building should be based on a risk analysis made by th...
How to check a fiber optic system?
The question of how to verify the correctness of a fiber optic system comes up very often. Installers acquire basic devices for verification - an optical power meter and a light source, but they are not sure how to correctly perform the measurement itself and, above all, how to interpret the results....
Use of relay outputs in the DS-KH6320-WTE1 Hikvision IP video intercom monitor.
When installing a video-intercom system, it is sometimes necessary to install additional functions to notify the user that someone has pressed the call button on the door station. An example can be installation of the system in a noisy production hall, using it by a person with impaired hearing , or a need to install signalling outside the house, so that being in the garden you would notice that someone has come....
Sunell monitoring system management software.
SunView CMS is professional, free CMS (Central Management Software) for monitoring system management. It works within a client-server architecture, which makes it a scalable and centralised system. This means that it can be easily adapted to different sizes and monitoring needs, while being managed from one central point. With a variety of features, it is able to meet a wide range of requirements for video surve...
Selection and installation of an antenna for LTE MIMO.
When selecting an antenna, it is necessary to obtain information on the location of the nearest transmitters that emit a signal in a specific standard. Such information is provided by customer service offices of the respective operators. It is also worth to verify the frequency of emission assigned to a particular service....
Library new titles
- 2025-01-02
- About TV & SAT Antennas
Choosing the right antenna is a key issue in any TV system. When looking for a suitable model, the following factors should be taken into account – gain, directivity, mounting location, built-in signal amplifier and the band for which the antenna is tuned.
- 2024-08-25
- Installation Components
One of the criteria for classification of TV systems in hotels is the programming to be distributed. The simplest systems may provide only free-to-air terrestrial TV broadcasts, whereas more advanced solutions will include satellite channels, also some premium ones (pay-TV). The content required by the owner/investor will depend on the categories of prospective hotel guests (foreign and thematic channels etc).
- 2024-07-17
- Some Theory
PoE (Power over Ethernet) is the name of a number of methods that allow for powering network devices through UTP/FTP cables. This way it is possible to power devices such as cameras, phones, switches, access points, etc.
- 2024-06-19
- Measurements
Measurement of DVB-T2 terrestrial television signals and DVB-S/S2 satellite television signals. The technique of measuring DVB-T2 terrestrial digital TV signals is not very different from DVB-T signal measurement.
- 2024-06-12
- HIKVISION
Archive library. The information contained therein may be outdated. HikCentral Professional is a complete platform designed to manage Hikvision-branded security systems.
- 2024-05-08
- Measurements
This article summarizes the knowledge for the installer who faces the task of verifying the correctness of a fiber optic system. The article describes in detail all aspects related to the idea and procedures of measurement by the transmission method.
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