
Nejnovější předpisy v Polsku, které se týkají systémů distribuce signálu v bytových jednotkách a veřejných budovách určují přesnější požadavky na kabelážní systémy zaváděné v nových budovách. Účelem je sjednotit požadavky na poskytování služeb pro každého uživatele tím, že přístup k širokopásmovému připojení k internetu, televize, telefonování atd. - není omezen na jednoho operátora nebo technologii.
Podobné požadavky jsou nebo budou povinné v mnoha zemích, to, že investoři musí vzít v úvahu. I když dosud nebyly předány takové předpisy, bude plnění doporučení, aby se budovy atraktivnější pro zákazníky / klienty.
The main requirements include:
1) instalace optického systému skládajícího se z optického rozvaděče nacházejícího se v technické místnosti a kabeláže (alespoň dvě vlákna ke každému bytu)
FTTH (Fiber-To-The-Home) technologie výrazně zlepšuje kvalitu širokopásmových služeb, zejména umožňuje uživatelům vyšší přenosové rychlosti, a to je zejména důležité pro streamování HD videa, médium je také mnohem bezpečnější pro zařízení uživatelů - žádné přepětí.
2)instalace RF systému pro příjem a distribuci digitální pozemní televize a rozhlasu (DVB-T, DAB), stejně jako digitální satelitní televizi ze dvou satelitních pozic, systém by měl zahrnovat koaxiální kabely a instalační prvky: rozbočovače, odbočovače, zesilovače, multipřepínače, anténní set
Optimálním řešením je spojit obě zařízení do jednoho multipřepínačovým systému, pomocí jednoho koaxiálního kabelu, poskytuje všechny signály do každého bytu. Díky tomuto řešení obyvatelé nebyli nuceni platit za služby provozovatele kabelové televize - mohou získat zdarma DVB-T vysílání, FTA a placené kanály TV se satelitním příjmem.
Velmi důležitým faktem je, že obyvatelé domů bez multiswitch systémů museli připojit vlastní satelitní paraboly (v Polsku asi 50% diváků TV byly připojen pomocí satelitních přijímačů), na balkonech a fasádách budov, které kazily celkovou estetiku budov. Lidé mající byty jen na severní a západní straně budovy byli zbaveni přístupu k satelitním signálem polských operátorů. Multipřepínače řeší tento problém.
Velmi důležitým faktem je, že obyvatelé domů bez multiswitch systémů museli připojit vlastní satelitní paraboly (v Polsku asi 50% diváků TV byly připojen pomocí satelitních přijímačů), na balkonech a fasádách budov, které kazily celkovou estetiku budov. Lidé mající byty jen na severní a západní straně budovy byli zbaveni přístupu k satelitním signálem polských operátorů. Multipřepínače řeší tento problém.
3) Další koaxiální kabely mohou poskytnout signály / služby od poskytovatele kabelové televize, nebo nezávislé SAT a DVB-T signály.
4) Strukturální kabeláž založená na dvou UTP kabelech vedena ke každému bytu poskytuje přístup k internetu, telefonu atd..
5) Instalační box se nachází v každém apartmánu v blízkosti vstupních dveří, s ukončením všech kabelů a dalších zařízení, jako jsou rozbočovače RF, Ethernetové switche a pod. Instalace dále vede do zásuvky v bytě.
6) Samostatná technická místnost obsahuje distribuční rám a propojovací krabice, která umožňuje připojení libovolného účastníka do infrastruktury jakéhokoli poskytovatele služeb v této oblasti.
- antenna set: FM 87.5 – 108 MHz, VHF/DAB 174 – 230 MHz, UHF 470 – 862 MHz (min. gain 14 dBi)
- parabolic or offset dish with at least 1.20 m diameter
SMATV system should receive channels at least from two satellite positions, all components must be compliant with class A screening efficiency.
For applications in multi-dwelling units, DIPOL recommends renowned TERRA multiswitch solutions. They are widely used in Great Britain, Germany, Australia, Poland. There are thousands of implementations worldwide, with many, many thousands of satisfied users.
Multiswitches are the flagship products of TERRA company. Due to excellent scalability, they can be used both for implementations of small and very large systems, up to 2,000 outlets. Systems with hundreds of outlets can be powered from only one AC power outlet. The concept of the large systems is based on signal bus and division into subnetworks with MV-9XXL multiswitches.
Active of terrestrial TV path. Possibility to adjust the gain of the terrestrial TV path and the SAT path for two satellite positions (separately for each of the 8 pairs of IF polarization-band signals).

![]() | ![]() | ![]() | ||||
Name | MV-908L | MV-912L | MV-916L | |||
Code | R70858 | R70862 | R70866 | |||
Number of inputs | 9 | 9 | 9 | |||
No. of outputs | 8 | 12 | 16 | |||
Frequency band [MHz] | SAT | 950 – 2400 | ||||
DVB-T/Radio | 47 – 790 | |||||
Gain (pre-correction cable attenuation curves) [dB] | SAT | out 1-16 | 3...8 | |||
DVB-T/Radio | wyj.1-8 | 4...7 | ||||
out 9-12 | 3...5 | |||||
out 13-16 | 2...3 | |||||
Gain control [dB] | SAT | 12, 4 dB step | ||||
DVB-T/Radio | 15, 1 dB step | |||||
Max. SAT signal level (IMD3=35 dB)* [dBμV] | 93 | |||||
Max. signal level of terrestrial TV (IMD3=60 dB)*[dBμV] | out 1-8 | 85 | ||||
out 9-12 | 83 | |||||
out 13-16 | 83 | |||||
Input separation SAT [dB] | > 30 | |||||
Output separation [dB] | SAT | > 30 | ||||
DVB-T | > 30 | |||||
Receiver current consumption [mA] | < 60 | |||||
Maximum current consumption from H line and external power source | 12 V ... 18 V < 160 mA at 18 V | |||||
Control signals | 14/18 V, 0/22 kHz, tone burst lub DiSEqC 1.0, DiSEqC 2.0 or compatible versions | |||||
DC pass through the connector "AUX18 V" | 18 V 1 A max. | |||||
Operating ambient temperature range [°C] | -20...+50 | |||||
Dimensions [mm] | 187x135x30 | 227x135x30 | 267x135x30 | |||
Weight [kg] | 1.26 | 1.26 | 1.26 |
![]() | ![]() | |||||
Name | MV-924L | MV-932L | ||||
Code | R70874 | R70882 | ||||
Number of inputs | 9 | 9 | ||||
No. of outputs | 24 | 32 | ||||
Frequency band [MHz] | SAT | 950 – 2400 | ||||
DVB-T/Radio | 47 – 790 | |||||
Gain (pre-correction cable attenuation curves) [dB] | SAT | out 1-16 | 2...7 | |||
out 17-32 | 1...5 | |||||
DVB-T/Radio | wyj.1-8 | 4...7 | ||||
out 9-16 | 3...5 | |||||
out 17-24 | 2...3 | |||||
out 25-32 | - | 1...1 | ||||
Gain control [dB] | SAT | 12, 4 dB step | ||||
DVB-T/Radio | 15, 1 dB step | |||||
Max. SAT signal level (IMD3=35 dB)* [dBμV] | 93 | |||||
Max. signal level of terrestrial TV (IMD3=60 dB)*[dBμV] | out 1-8 | 85 | ||||
out 9-16 | 83 | |||||
out 17-24 | 81 | |||||
out 25-32 | - | 79 | ||||
Input separation SAT [dB] | > 30 | |||||
Output separation [dB] | SAT band | > 30 | ||||
DVB-T band | > 30 | |||||
Receiver current consumption [mA] | < 60 | |||||
Maksymalny pobór prądu z linii H oraz zewnętrznego źródła zasilania | 12 V ... 18 V < 160 mA at 18 V | |||||
DC pass through the connector "AUX18 V" | 18 V 1 A max. | |||||
Control signals | 14/18 V, 0/22 kHz, tone burst lub DiSEqC 1.0, DiSEqC 2.0 lub kompatybilne wersje | |||||
Operating ambient temperature range [°C] | -20...+50 | |||||
Dimensions [mm] | 227x135x30 | 267x135x50 | ||||
Weight [kg] | 1.42 | 1.86 |
The use of amplifiers SA-91L/91DL allows you to build extensive multiswitch systems with up to several hundred outlets. Signal level control with switches ensures stability of parameters over time. The die-cast housing provides high screening efficiency preventing the penetration of interfering signals inside the device.

![]() | ![]() | ||
Name | SA-91L | SA-91LD | |
Code | R70901 | R70911 | |
Frequency band [MHz] | SAT | 950 – 2400 | |
DVB-T/Radio | 47 – 790 | ||
Gain [dB] | SAT | 22 | |
DVB-T/Radio | 22 | ||
Gain control [dB] | SAT | 0. -15, 1 dB step | |
DVB-T/Radio | 0. -15, 1 dB step | ||
Correction for cable attenuation pattern [db] | SAT | 0/3/5/7 | |
DVB-T/Radio | 0/6/12/18 | ||
Separation [dB] | SAT/SAT | 30 | |
SAT/DVB-T | 30 | ||
Inner noise [dB] | < 9 | ||
Max. signal level of terrestrial TV (IMD3=60 dB)****[dBμV] | 109 | ||
Max. SAT signal level (IMD3=35 dB)**** [dBμV] | 114 | ||
Power supply for other devices | signal path V | 14 V 0.5 A max. (switch) | - |
signal path H | 18 V 1.8 A* max. (switch) | - | |
terrestrial TV path | 12 V 0.1 A* max. (switch) | - | |
DC transition in sig. path. H | 2 A* max. | ||
Power consumption | 230 VAC 50/ 60 Hz 7 W** | 9-18 VDC 5 W*** | |
Operating ambient temperature range [°C] | -20...+50 | ||
Dimensions [mm] | 335x135x52 | 255x135x32 | |
Weight [kg] | 1.18 | 0.9 |
Taps are used in multiswitch systems, to separate signals from the multiswitch bus (2x4 SAT +1 TV cable) for the multiswitch subnetwork. The molded housing provides excellent screening over the entire range of transmitted frequencies.

![]() | ![]() | ![]() | ||
Name | SD-910 | SD-915 | SD-920 | |
Code | R70524 | R70525 | R70526 | |
Frequency band [MHz] | SAT | 950 – 2400 | ||
DVB-T/Radio | 5 – 862 | |||
Pass loss [dB] | SAT | 1.7 | 1.2 | 0.9 |
DVB-T/Radio | 1.6 | 1.2 | 1.0 | |
Tap loss [dB] | SAT | 8...12 | 13...17 | 18...22 |
DVB-T/Radio | 10 | 15 | 20 | |
Input separation [dB] | SAT/SAT | 30 | ||
DVB-T/SAT | 30 | |||
DC pass-through | 2 A max. | |||
Operating ambient temperature range [°C] | -20...50 | |||
Dimensions [mm] | 120x120x51 | |||
Weight [kg] | 0.9 |
Splitters are used in multiswitch systems, to split the signal from the multiswitch bus. The bus with the signal from two Quatro LNBs consists of eight cables. In addition, the splitter divides, also the terrestrial TV signal. The molded housing provides excellent screening over the entire range of transmitted frequencies.

![]() | ![]() | |||
Name | SD-904 | SDQ-908 | ||
Code | R70523 | R70529 | ||
Inputs/outputs | 9/18 | 9/36 | ||
Frequency band [MHz] | SAT | 950 – 2400 | ||
DVB-T/Radio | 5 – 862 | |||
Pass loss [dB] | SAT | 4 | 8 | |
DVB-T/Radio | 4 | 8 | ||
Tap loss [dB] | SAT | 4 | 8 | |
DVB-T/Radio | 4 | 8 | ||
Input separation [dB] | SAT/SAT | 30 | ||
DVB-T/SAT | 30 | |||
DC pass-through | 2 A max. | |||
Operating ambient temperature range [°C] | -20...50 | |||
Dimensions [mm] | 120x120x51 | 254x120x51 | ||
Weight [kg] | 0.9 | 1.4 |
Regulation of the Ministry of the Interior and Administration of November 6, 2012 specifies the following requirements against surges in telecom systems of residential buildings:
- Telecommunication systems shall be equipped with surge protection devices, and, when the system may be exposed to overcurrent, also with overcurrent protection devices, while the elements of the system extending above the roof shall be placed in the zone protected by the lightning protection system referred to in § 184 (3), or directly grounded in the absence of a lightning protection system. Antenna systems extending above the roof and longer runs of antenna systems in buildings (exceeding 10 m) should be protected by surge protectors from direct and indirect discharges.
Signal surge protection box R48606 has been designed for comprehensive protection of SMATV systems based on multiswitches. The device protects the system against voltage surges induced in signal lines by lightning strokes.

The box has been equipped with 12 Signal TV-Sat surge protectors R48602 that can protect:
- 2 multiswitch satellite paths (8 cables in total - 4 polarization-band pairs for each satellite),
- 2 radio paths (FM, DAB),
- 2 DVB-T terrestrial TV paths (UHF1, UHF2).
Regulation of the Ministry of the Interior and Administration of November 6, 2012 specifies the following requirements for coaxial cables in telecommunications systems of residential buildings:
- koaxiální kabely alespoň kategorie RG-6, s třídou účinnosti screeningu zaručenou dvojitým stíněním (opletení a hliníková fólie s minimálním krycím faktorem 77%), s měděným vodičem o minimálním průměru 1 mm. Každý byt má být vybaven dvěma kabely, jeden poskytující signály z multipřepínače (FM + DAB + DVB-T + SAT), druhý také z multipřepínače nebo od provozovatele CATV.
![Koaxiální kabel (75 ohm): TRISET- 113 1.13/4.8/6.8 [100m]](https://static.dipol.com.pl/images/cz/pict/e1015++.jpg)
TRISET-113 1.13/4.8/6.8 class A 75 ohm coaxial cable E1015_100.
Requirements | Triset-113 specifications | |
Category RG-6 or higher | Triset-113 cables are RG-6 category products with improved performance | |
Double shield: aluminium foil + ≥ 77% density braid | Double shield: aluminium foil + ≥ 81% density braid | |
Cooper inner conductor with at least 1 mm diameter | Cooper conductor with a diameter of 1.13 mm | |
Class A | Screening efficiency 0.03...1 GHz ≥ 85 dB 1...2 GHz ≥ 75 dB 2...3 GHz ≥ 65 dB | Screening efficiency 0.03...1 GHz ≥ 90 dB 1...2 GHz ≥ 90 dB 2...3 GHz ≥ 85 dB |
Transfer impedance < 5 mΩ/m | Transfer impedance < 4.6 mΩ/m |
![Koaxiální kabel (75 ohm, třída A): DIPOLNET Tri-Shield RG-6 Cu 1.02 / 4.8 / 7.0 [300m]](https://static.dipol.com.pl/images/cz/pict/e1220++.jpg)
Coaxial cable Tri-Shield DIPOLNET class A 1.02/4.8/7.0 75 Om RG-6 Cu E1220_500.
Requirements | DIPOLNET specification | |
Category RG-6 or higher | The DIPOLNET family cable is the RG-6 category cable | |
Double shield: - Al foil - ≥ 77% density braid | Triple shield: - AI foil - 77% braid - Al foil | |
Cooper inner conductor with at least 1 mm diameter | Cooper conductor with a diameter of 1.02 mm | |
Class A | Screening efficiency 0.03...1 GHz ≥ 85 dB 1...2 GHz ≥ 75 dB 2...3 GHz ≥ 65 dB | Screening efficiency 0.03...1 GHz ≥ 89 dB 1...2 GHz ≥ 90 dB 2...3 GHz ≥ 89 dB |
Transfer impedance < 5 mΩ/m | Transfer impedance ≤ 2.5 mΩ/m |
One of the coaxial cables brought to the telecom subscriber box can be used for the provision of services by cable TV operators. Due to the fact that cable networks also use coaxial cables for the transmission of Internet services using the band of the so-called return channel (frequencies of 5...65 MHz), we recommend the use of cables with increased screening efficiency in the return channel band, such as Triset-PROFI E1010 (screening in the bands 30-1000MHz >110dB - class A++).
75 ohm coaxial cable TRISET PROFI 120 dB class A++ E1010. The tinned cooper braid is resistant to oxidation/corrosion, which increases the durability of the cable compared with aluminum solutions. The average screening efficiency of 120 dB and transfer impedance below 0.9 mΩ/m make it ideal for applications in digital CATV networks.
Requirements | Triset PROFI specifications | ||
Category RG-6 or higher | Triset cables are RG-6 category products with improved performance | ||
Double shield: aluminium foil + ≥ 77% density braid | Triple shield: Al/PET/SY foil (first) bonded to the dielectric + 83% density, braid + Al/PET foil (second) bonded to the sheath | ||
Cooper inner conductor with at least 1 mm diameter | Cooper conductor with a diameter of 1.13 mm | ||
Class A | Screening efficiency 0.03...1 GHz ≥ 85 dB 1...2 GHz ≥ 75 dB 2...3 GHz ≥ 65 dB | Class A++ | Min. screening efficiency 0.03...1 GHz > 105 dB 1...2 GHz > 105 dB 2...3 GHz > 105 dB Average screening efficiency 0.03...2.4 GHz 120 dB |
Transfer impedance < 5 mΩ/m | Transfer impedance < 0.9 mΩ/m |
Recommended article from the Library:
Požadavky na systém:
- jádro systému v každé budově je technická místnost distribuční rám a propojovací krabice, která umožňuje připojení libovolného účastníka do infrastruktury jakéhokoli poskytovatele služeb v této oblasti.
- rozvaděč spojený s poskytovateli služeb je propojen s každou účastnickou zásuvkou nebo optickým zakončením alespoň dvěma single-mode vlákny s minimálními parametry uvedenými v tabulce:
útlum při λ = 1310 .. 1625nm | ≤ 0,4 dB/km |
útlum při λ = 1550nm | ≤ 0,25 dB/km |
chromatický disperzní koeficient D | ≤ 0,092 ps/nm2*km |
jmenovitý průměr pole | od 8,6 do 9,5 μm |
vlnová délka po odříznutí | ≤ 1260 nm |
útlum 100 otáček o průměru 60 mm (1625nm) | ≤ 0,1dB |
These parameters are met by single-mode G.652.D fibers. Of course, they are also fulfilled by the G.657.A1/A2 fibers with reduced minimum bending radius.
Požadavky jsou splněny pomocí kabelů níže:
The main criterion in selecting fiber optic cabling for a building system is the topology of the system on which the network will be built. There are two dominant trends - systems based on the so-called. easy access cable and star systems, in which the L7102 2-fiber flat cable, ideal for FTTH technology, is most often used. The choice of the type of topology is usually determined by the number of apartments in each block and on each floor.
The basic criterion for the selection of a distribution frame/box is the way mounting, on a wall or inside a rack cabinet. Of course, the enclosure must have suitable capacity depending on the number of terminated fibers and other network components. For use in apartment buildings, the most popular models of distribution frames/boxes can accommodate from 12 to 72 fibers.
- je třeba použít optické konektory typu SC / APC
All distribution frames/boxes should be equipped with SC/APC adapters for connecting pigtails. A good practice is to use the same type of fibers throughout the whole network.
- útlum optické linky z rozvaděče do jakékoliv zásuvky nebo ukončení optiky nesmí překročit 1,2 dB (při 1310 nm a 1550 nm)
- jakékoliv místa s ukončením kabelů musí mít vhodné varovné znamení o nebezpečí neviditelného optického záření
When the designer plans services provided via xPON technology, the distribution frames should have place for optical splitters. Optical splitters, similarly to RF splitters, divide the transmission paths to several sub-paths. Commercially available splitters enable the division into up to 32 branches.

The view of the SO-4-7A L36041 splitter (1:4)
In the case of termination/subscriber boxes, the very important issue is the security of the installers and users - the connectors have to be covered or directed downward.

Optical Fiber Termination Box ULTIMODE TB-02H-2 L53022
Requirements for the system:
- telecommunications box in each apartment has to be connected with the technical room at least with two UTP cables, Cat 5e or higher
- the transmission paths have to be compliant with class D (IP multicast)
- one of the links is to be used by a provider of telecommunications services, the second for the implementation of intercom system, doorbell etc.
- Telecommunication boxes are usually located near the entrances to apartments and contain terminations of cables, active and passive components, and, if needed, AC power outlet. The signals provided to the boxes are further distributed in the apartments.
Příklad praktického provádění optického systému ve vícepodlažní budově
V uvedeném příkladu má budova 5 podlaží s 3 byty na každém patře. Podle výše uvedených předpisů, instalace obsahuje 30 vláken, se dvěma vývody v každém apartmánu.
Technická místnost obsahuje Rackové skříně R912012 se dvěma optickými boxy ULTIMODE MT-524 L5124 L5541 s předními panely. Do krabice se vejde až 48 SC / APC adaptérů L4222 . Optické kabely odběratelů jsou distribuovány ze zadní části skříně - jsou spojeny s SC / APC L3552 pigtailů umístěnými uvnitř krabic.
Apartmány jsou spojeny s technickou místností přes vlákna ULTIMODE BS s lehce přístupnými kabely. Apartmány na prvním patře jsou spojeny vlákny kabelu BS-12SM L7712 složeného z 12 vláken, na vyšších patrech kabely BS-24SM L7724 složenými z 24 vláken. Na každém patře je 6 vláken povytiahnuých z kabelu po vyřezání vhodného otvoru se speciálními kleštěmi L5911 . Otvory jsou chráněny vylamovacími jednotkami VertiCASA VQ-BU. Každý pár vláken vedoucí do bytu je chráněn distribuční trubkou VC-TUB L7211 .
V každém bytě mohou být vlákna ukončeno několika způsoby, a to buď v případě použití koncové krabice nebo zásuvky. Jako nejlepší řešení se zdá být malá ukončovací skříň s vlákny ukončenými způsobem, který nebude vyžadovat, aby uživatel zapojil profesionální služby pro jejich spojení kvůli budoucímu použití. Může to být ukončovací krabice ULTIMODE TB-02H L5302 obsahující náhradní délky vláken, spojené Pigtaily SC / APC L3552 zakončenými adaptéry L4222 .
Příkladem praktického provádění SMATV systému v multistory budovy
Considering the number of outlets and their layout in a building, we can distinguish two main cases. In the case where the total number of outlets within a single subnet (usually encompassing apartments in one staircase) is relatively large (above 32), a good solution is to install multiswitches in boxes on each floor to provide the signals to the apartments on the floor.
The main advantages of this solution are limited number of the cables in shafts and division of the distributing network into small, independent subnetworks. This segmentation allows for virtually complete elimination of a massive breakdown of the system.
The photo above shows an example of the box with equipment for signal distribution on one floor. The SS-920 R70526 tap takes signals from the 9-cable "bus" going vertically from the bottom to the top of the building. The MV-908L R70858 multiswitch is connected with the tap through F-F E8242 adapters. Identical layout of the outputs of the tap and inputs of the multiswitch allows for these quick end elegant connections that take minimum amount of space in the installation box. This is a key issue when the boxes are located in limited space designed for such installations. Additionally, MV multiswitches are powered via signal lines from SA-91L R70901 amplifier located on another floor - there is no need to provide a separate power cable to each box. The box in the photo is the TPR-21 R90562 (450x350x120 mm).
The solution presented in the figure above, based on Terra MSV multiswitches and tap-off line concept (cable bus) is the most optimal one in terms of the number of components. Due to a small size of the subnetwork in the example (encompassing 15 apartments located in a single staircase of a 5-story building), all the apartments can be served by one multiswitch. The SMATV system distributes signals from two satellites (e.g. Hotbird and Astra) received by two dishes equipped with QUATRO Inverto Black Ultra A98266 LNBs, and a range of terrestrial signals, received by DVB-T antenna Dipol Tri-Digit A2670, VHF antenna Dipol-4/DAB A0140, and FM antenna Dipol 1RUZ PMB A0221.
The cabling consists of 11 coaxial cables Triset-113 E1015 going from the roof to the technical room containing all active devices. In the case of a higher building or when the distance from the antenna set to the technical room is longer than 25-30 meters, it is recommended to install additional installation box with amplifiers, located close to the antennas (in the attic or on the highest floor). In the presented solution, all the cables to the subscribers run from the room. Because of large number of cables going in parallel, they should have very good screening efficiency, like TRISET-113 E1015.
More on topologies and solutions of multiswitch systems can be found in the excerpt of another article, Example diagrams of multiswitch systems
The technical room contains:
- amplifier for 9-input multiswitches SA-91L Terra R70901, amplifying TV SAT and terrestrial TV signals and powering via signal lines all MV multiswitches;
- TV/SAT tap Terra SD-920 R70526 extending 9-cable systems (2x4 SAT + Terr. TV) into two subnetworks;
- 9/16 multiswitch TERRA MV-916 R70866 with 9 inputs with signal level adjustment and 16 outputs with diversification of signal levels to compensate the differences in attenuation of various lengths of cables that have to be used in the installation.
The highly reliable Terra MV devices are covered by a 4-year warranty.
Designing of SMATV systems - Terra SatNet software
Selecting the equipment for a multiswitch system, the designer has to take into account the attenuation in all paths, to ensure proper signal levels in every subscriber outlet. The figure below shows a part of the project of the previously introduced system, made with the use of free Terra SatNet utility.
Key features of Terra SatNet utility:
- designing complete systems for reception of terrestrial and satellite broadcasts
- taking into account individual parameters of all devices and cables
- taking cable parameters from provided table or entering specific values
- taking into account cable lengths
- declaring the signal levels at the input of the system (from LNB and DVB-T antenna)
- calculating loss of DVB-T and SAT signals at various frequencies in the whole frequency range
- possibility of manual adjustment of automatically preselected gain levels of multiswitches
- automatic choice of passive components (splitters, taps)
- signaling the correct signal levels in all devices and outlets
- printing the final designs
The diagrams that we have prepared with SatNet software (.dwg files), everyone can use for practical implementations of systems based on Terra devices. The .dwg files can be found in the catalog pages of the devices (Available downloads), e.g.
Implementation of LAN in a multistory building
Telecommunications box in each apartment is connected via two UTP cables NETSET E1408 with the technical room that is the connection point with telecommunications networks. One of the cables can be used, for example, by door entry system. The cables in the apartment boxes can be terminated e.g. with two-port patch panels, for easy connection with the cabling installed inside the apartments.
The cables from the apartments go down through the shaft and enter the technical room with 24-port (CAT5 RJ45) patch panels R9120316. This way the service providers can easily connect their switches installed in the room to the building network.
Implementation of CATV network in a multistory building