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DIPOL Weekly Review - TV and SAT TV, CCTV, WLAN
No. 40/2008 (Dec. 1, 2008)
Cable TV operators again in the lead - DOCSIS 3.0. Video transmission/broadcasting is the main challenge for present-day data transmission networks. New fixed installations use fiber optic cables - the most effective medium for data transmission, which is provided even to the end user - FFTH (Fibre To The Home). However, this solution is still expensive, especially when implemented in existing buildings.
A more economical way of providing a wide range of TV programs, VOD etc, and one of the fastest Internet access service is - well known for years - use of cable TV infrastructure, based on HFC architecture, and supported by the latest data transmission standard developed for cable TV systems - DOCSIS 3.0.
The existing HFC (Hybrid Fiber-Coaxial) infrastructure has been built by cable TV operators since early nineties. Each commercial cable network is a combination of the central part (usually transport ring) and main distribution lines based on optical technology, and local/building coaxial cabling.

DOCSIS (Data Over Cable Service Interface Specification) is a family of standards managing digital data transmission in cable networks. DOCSIS 1.0 was accepted and published in March 1997, the next, most popular version (2.0) - in December 2001.
The latest DOCSIS 3.0 that radically increases maximum transmission speeds - including uploading - was officially approved in August 2006.
DOCSIS 3.0 supports multichannel digital transmission. Similarly to previous versions, the subscriber is equipped with suitable cable modem. The headend/hubsite contains CMTS (Cable Modem Termination System) equipment.
The original DOCSIS has been prepared for NTSC standard (USA and some other countries) that uses 6 MHz channels. Its European version for 8 MHz channels (PAL) is known as EuroDOCSIS.
Designed for the future, DOCSIS 3.0 supports Internet Protocol version 6 (IPv6).

 

DOCSIS

EuroDOCSIS

 

Downstream

Upstream

Downstream

Upstream

Version

Mbit/s

Mbit/s

Mbit/s

Mbit/s

1.x

42.88 (38)

10.24 (9)

55.62 (50)

10.24 (9)

2.0

42.88 (38)

30.72 (27)

55.62 (50)

30.72 (27)

3.0 (4 channels)

171.52 (152)

122.88 (108)

222.48 (200)

122.88 (108)

3.0 (8 channels)

343.04 (304)

122.88 (108)

444.96 (400)

122.88 (108)

Maximum transmission speeds of different DOCSIS versions (in parentheses - usable values)
Hybrid HFC (Hybrid Fibre-Coaxial) infrastructure combines optical technology and local/building distribution networks based on RF equipment and coaxial cables
(Source: Wikipedia)
Telecommunications in kibbutzes. "A kibbutz is a collective community in Israel that was traditionally based on agriculture. The kibbutz is a form of communal living that combines socialism and Zionism. Kibbutzim began as utopian communities, but have gradually embraced a more "scientific" Socialist approach. Today, farming has been partly supplanted by other economic branches, including industrial plants and high-tech enterprises.(...) Although less than five percent of Israelis live on kibbutzim, they are disproportionately represented in key positions and high-status fields." - Description from Wikipedia

The ethnic structure of the state of Israel is heterogeneous. Jewish towns and settlements neighbor on Arab places. Ownership issues were one of the reasons for rapid development of wireless telecommunications - it is much easier to setup wireless link than build a cable line. In many kibbutzes, wireless transmissions are the basic means of communication.
Telecommunications infrastructure in Israel is one of the most modern in the world. Its modernity is shown by the percentage of households with broadband Internet access - it is about 70%, which places the country in 4th position in the world, after South Korea, Hong Kong and Iceland.
Israel is also the world leader in mobile telephony. Cable television is available for 97% of the population, it is used by about 52% of households.
In the U.S. market, among the NASDAQ high-tech companies Israeli firms take the second place (after U.S.A) in terms of number. Among them there are well-known names like Alvarion, Gilat Satellite Networks, RADWAR, RAD Data, Tadiran, Teledata, Telrad, VocalTec, Verint.

Video surveillance in Israel - a photo report
Telecommunications in Israel - a photo report
Wireless transmissions are the basic means of communication in many kibbutzes.
In the picture - the antennas of a wireless link and GSM base station in Galilee.
Public address installations seem to be very important, too (on the left).
Together with CCTV systems (on the right) they ensure security of the kibbutz communities.
TV, SAT, WLAN, CCTV installations - advertising and experience. We invite installation companies from Poland, Czech Republic, Slovakia, and Hungary to send in descriptions of accomplished projects of terrestrial, satellite, CCTV, and WLAN installations/systems.
Please, fill in this form and attach at least 2 pictures of the installation.
The diversity of customers' requirements and variety of equipment and technical conditions are the reason that it is impossible for a single company to test all solutions. For the benefit of installation companies and their customers, we would like to promote reliable solutions.
We will publish the descriptions in consecutive issues of our DIPOL Weekly Review. The reward for the company will be free advertising. We will also award every report published in DIPOL Weekly Review with commemorative DIPOL mug.
DIPOL websites are very popular technical portals in Europe, available in several languages (e.g. Polish version - Page Rank 5). The link to your company website will raise your rank in major search engines.
CCTV monitoring in automotive wholesale center. GAZELO deals with import and distribution of spare parts for cars. In Poland, it is the sole representative of several manufacturers of electric fuel pumps and lambda sensors from Korea, Taiwan, and China.

To increase security and improve the organization of work in the new wholesale store, the investor decided to install CCTV monitoring. In the construction process the contractor made cabling to all planned outdoor camera points, using gel-filled cat 5e UTP cable, prepared for CCTV cameras placed in housings equipped with video transformers with BNC sockets - TR-1Q M16651. Video signals from four cameras are received by video transformer TR-4P M1667 placed in the building and providing its output signals to the DVR. If needed in the future, the installation allows to transmit audio, e.g. for transmitting some orders. Indoor CCTV cabling has been based on CCTV YAR cable with two power wires - M5995.

The employed outdoor day/night SUNELL cameras (M11202) have on board 1/3" SONY EX-View CCDs. Thanks to high parameters, the cameras can work even in extreme lighting conditions (e.g. they can be used for monitoring of roads). Some places, very dark at night, required to use compact cameras with IR illuminators. Outdoor color cameras VF-515 IR/B M11278, with SONY Super HAD sensors, 550 TVL resolution, equipped with 4-9 mm varifocal lenses and IR illuminators seemed to be the best choice. They were easy to mount and adjust, providing quality images with increased resolution. The inside parts of the building and the rooms are monitored with the cameras VC-412 M10746. This model of universal (ceiling / wall) color vandal-proof camera is equipped with built-in 3.6 mm lens and IR illuminator.

Images from the set of cameras are recorded by 16-channel DVR - CPD-507 M8534 and 4-channel DVR - CPD-560 M85039. Some selected images are also available via RF system (due to use of TERRA modulators MT27P R871727) and can be viewed on TV sets located in administrative part of the building.
There are plans for future development of the system. The key cameras will be connected to ULTIMAX DVR that allows live monitoring, preview of archives, and configuration of the system via LAN or the Internet. H.264/AVC compression is 50% more efficient compared with the previous kind of MPEG-4 algorithms, saving disc space and available bandwidth of IP networks.
CCTV monitoring system in GAZELO, a distributor of spare parts for cars,
is used for supervision and improvement of work organization
New potential of multiswitch installations - splitters and taps from TERRA. Many new multi-family buildings are equipped with multiswitch installations that enable residents to connect their satellite receivers. Large multiswitch systems are usually divided into several subnetworks. They have to be carefully balanced. So far, there have been problems with adequate equipment for such systems (lack of integrated multi-line splitters and taps).
Recently DIPOL has introduced 9-cable (2-LNB + terr. TV) splitters and taps from TERRA. This equipment allows to build large multiswitch systems in multi-staircase buildings, up to 300 outlets. Its important feature is possibility of equalization of signal levels in all subnetworks, which is indispensable for efficient distribution and good signal quality in every outlet.
DIPOL offers splitters SS-904 R70523 - for symmetrical layout of the installation (the subnetworks are located at similar distances), and taps SS-920 R70526, SS-915 R70525, SS-910 R70524 - for asymmetrical layouts.
Additionally, there are available splitters SSQ-908 R70529 that allow to split the 9-cable system into four subsystems. They are ideal for 4-staircase buildings, with symmetrical layout (when using them in 3-staircase buildings, one of the sets of outputs should be closed with 75 ohm terminating resistors).
TV/SAT Splitter: Terra SSQ-908 (9-in, 36-out)
The SSQ-908 R70529 splitter allows to divide symmetrically the 9-cable system into four subsystems
(e.g. four staircases)
New software for ULTIMAX DVRs. Many users of ULTIMAX DVRs saw the need for synchronous playback of more than two channels. The manufacturer has prepared software version that allows to play back all recorded channels in screen division. But it has its cost - lower parameters of recording - the number of recorded frames will be reduced by half. That's why this firmware version is not recommended for the 3xx series. In the case of the 5xx series, the new firmware will reduce maximum speed of recording from 12 fps (4CIF) to 6 fps.
The new ("wielokanalowe") and the basic ("aktualne") firmware is available in download section.
USB control unit for PTZ IP cameras. The USB control unit (K9153) is a peripheral device used for control of pan-tilt cameras. The joystick operates in x, y axes (pan &tilt), its knob controls zoom. The device is equipped with 12 programmable keys which can control functions of PTZ camera or set it to the previously defined positions. The unit is connected via USB port. It is dedicated for cooperation with ULTISYSTEM, NUUO and ACTi NVR software.
USB Control Unit (PTZ)
USB control unit for PTZ IP cameras - K9153
Full version of NUUO software for free! NUUO company - the manufacturer of professional surveillance software - has made available a free, fully functional version of its software, without a time limit. This IP CCTV managing software enables the user to test all functions of one-channel system. To download this program from DIPOL's website just clik on this link.
Notice! The program is available for users registered in our e-Store.

More on NUUO software you can find in our Library.
NUUO software package
Access point modes (example device: TP-Link TL-WA501G N2940) - part 4. Access Point is a device that connects wireless network to a wired system. So it has to have at least two interfaces: wireless - WLAN - using 802.11 standard, and wired - LAN - using 802.3 standard.
So far we have described the following modes of work: Access Point, Access Point Client, Repeater, Bridge (Point to Point) and Bridge (Point to Point) with AP mode. Below we present Bridge (Point to Multi-Point) and Bridge (Point to Multi-Point) with AP modes.
Bridge (Point to Multipoint) mode ensures multiple paths from a single location to multiple locations, i.e. a set of wireless bridges. It uses static routing based on the MAC addresses of the Access Points.
This mode allows to connect distant multiple parts of wired networks. The links are protected against access from other devices (e.g. wireless cards/adapters). For this mode there are recommended devices coming from the same manufacturer, because it is not standardized.
Access Point: TP-Link TL-WA501G <br />(AP/APC/WDS 2.4GHz, eXtended Range)Access Point: TP-Link TL-WA501G <br />(AP/APC/WDS 2.4GHz, eXtended Range)Access Point: TP-Link TL-WA501G <br />(AP/APC/WDS 2.4GHz, eXtended Range)Access Point: TP-Link TL-WA501G <br />(AP/APC/WDS 2.4GHz, eXtended Range)
Bridge (Point to Multipoint) option
Bridge (Point to Multipoint) with AP mode is a combination of the functionality of Bridge (Point to Multipoint) and Access Point modes. The point-to-multipoint connections do not eliminate possibility of connecting wireless clients (using e.g. wireless cards/adapters).
Access Point: TP-Link TL-WA501G <br />(AP/APC/WDS 2.4GHz, eXtended Range)Access Point: TP-Link TL-WA501G <br />(AP/APC/WDS 2.4GHz, eXtended Range)Access Point: TP-Link TL-WA501G <br />(AP/APC/WDS 2.4GHz, eXtended Range)Access Point: TP-Link TL-WA501G <br />(AP/APC/WDS 2.4GHz, eXtended Range)Wireless CardBus Adapter: TP-Link TL-WN510G (2.4GHz 54Mbps, eXtended Range)Wireless USB Adapter: TP-Link TL-WN321G (2.4GHz 54Mbps)
Combination of Bridge (Point to Multipoint) and Access Point modes

All modes of work are described in the article Access Point Modes
(example device: TP-Link TL-WA501G)
.

TP-LINK devices
ULTIAIR - the family of devices dedicated for wireless data transmission from IP cameras. ULTIAIR series has been designed for creating efficient wireless IP CCTV and ISP networks.
The devices operate in unlicensed 2.4 and 5 GHz bands. ULTIAIR family allows to build both the backbones of the systems and wireless access networks. The unique versatility of the devices is based on the implemented Linux software that allows different applications, from simple point-to-point links, indispensable in extensive IP video surveillance systems, to very sophisticated systems of data transmission.
ULTIAIR family:
  • ULTIAIR 419KC N2300 - AP with Technologic 19 dBi 5G-19D antenna, RB411A, Mikrotik lv.4
  • ULTIAIR 423KC N2301 - AP with Technologic 23 dBi 5G-23D antenna, RB411A, Mikrotik lv.4
  • ULTIAIR 319KC N2310 - AP with Technologic 19 dBi 5G-19D antenna, RB411, Mikrotik lv.3
  • ULTIAIR 323KC N2311 - AP with Technologic 23 dBi 5G-23D antenna, RB411, Mikrotik lv.3
  • ULTIAIR 423KN N2320 - AP with Technologic Dual Panel 23 dBi 5G-23D antennas, RB433 Mikrotik lv.4
  • ULTIAIR 417SB N2330 - base station with Technologic Sektor 17 dBi 5G-17S antenna, RB411A, Mikrotik lv.4
Protection of WLAN - part 3. The next way of protecting wireless network is IP address filtering. The example device is TP-LINK TL-WR542G N2950. To configure IP address filtering the user has to log in and switch off DHCP server (DHCP -> Disable window), log out and close Internet browser.
Then the user has to set manually in the computer: IP address, mask, gateway, and DNS server.
After that, it is indispensable to log in again and go to Security/IP Address Filtering window.
Below - example configuration of TP-LINK Access Point TL-WR542G N2950. The wireless card with the 150.10.0.100 IP address has been allowed to connect to the network.
IP address filtering window
We have written about:

PoE adapter with leads for LANs. The PoE set N9205 contains two passive devices shown in the picture...
- archive DWR of Sept. 17, 2007

Optimum cabling solutions (S/MATV) for multi-family buildings. Cabling is the part of signal distribution system in a building that is extremely difficult to exchange. In practice, it often cannot be easily modified even if the cables are arranged in tubes. So it is important to design the cabling in such a way that allows possible extension of the distributing system without a need of modifying the cable layout...
- archive DWR of Oct. 13, 2008

The significance of connectors in CCTV systems. Every connector, even the best one, causes degradation of the signal. The basic rule is minimizing the number of connections in the transmission channel. Usually manufacturers of connectors give two important parameters describing loss of signal...
- archive DWR of Oct 6, 2008

Index of published issues
DIPOL is a laureate of the "Liderzy Eksportu" (Export Leaders) ranking. The sixth series of the All-Polish Ranking of Export Leaders has been decided. The event is organized under the patronage of the Ministry of Foreign Affairs, the Ministry of Economy, and the Polish Information and Foreign Investment Agency. It aims at promoting Polish companies effectively operating in the field of export.

The official ceremony finalizing the competition took place in the Warsaw Galeria Porczyńskich on November 20, 2008. In the field of CCTV, SAT TV, WLAN - the winner has been DIPOL - in the category "Ekspansja Eksportu" (Export Expansion). This category takes into consideration the number of foreign markets that have been established by the competing companies.

DIPOL sells high-tech products to dozens of countries worldwide, including some "exotic" ones, like Zambia, India, Kosovo...

Established in 1990 DIPOL company is the European distributor of CCTV, WLAN, TV &SAT TV devices and equipment. It sells the products through a network of branches and authorized partners in Poland, Hungary, Slovakia, Czech Republic, and Germany.

First of all we export products under our own brands:
 
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