DIPOL Weekly Review – TV and SAT TV, CCTV, WLAN

No. 37/2019 (Nov. 25, 2019)

The first ever "petabit" switch.

Scientists at the Japanese National Institute of Information and Communications Technology (NICT) have created and tested a switch capable of handling 1 Pbps signals. This transmission rate is equivalent to delivering an 8K video to 10 million users at the same time.
The switching testbed
The low-loss optical switch, based on MEMS (Mico-Electro-Mechanical Systems) technology, was tested with three different types of spatial-division multiplexing optical fibers. The switching capacity varied from 10 Tbps to 1 Pbps, representing more than 100 times the capacity of the fastest devices in use today
Research conducted at the NICT represents the first step toward the implementation of "petabit"-class backbone networks expected to address the growing requirements of internet services, such as broadband video streaming, 5G networks, or the Internet of Things. In 2015, the same institute achieved the first petabit-class transmission in a single fiber.

An optical/copper SMATV system.

The advantage of using fiber-optic cables in SMATV systems is their ability to transmit television signals over considerable distances without the need for signal regeneration (depending on network topology and employed devices). In the case of a fiber-optic trunk, the size of the facilities in which the signal is to be distributed does not matter. The signal does not have be regenerated even when transmitted over hundreds of meters or tens of kilometers. The European market currently offers several brands of devices for the fiber-optic transmission of SMATV signals. Signal is a brand that really stands out for its competitive price and high quality. Attention should be drawn to the traditional quattro/quad LNBs used in the system. From the perspective of the installer, they represent one of its greatest advantages, because the antenna can be set up using a traditional SAT TV meter. Alternative systems (e.g. the very popular Triax SAT/DVB-T TOU 232 KIT A9880) rely on LNBs with an optical output or an N-type output with 50 ohm impedance. In both cases, the practice is to use a standard single LNB to adjust the dish and then change it to the dedicated one. Besides the extra workload associated with the practice, such changes often involve the risk of shifting the dish or the LNB. Using traditional quattro/quad LNBs may also prove beneficial in the event of a system failure. In such cases, installer can verify the issues directly at the dish.
TV Optical Transmitter: Signal OTH-2500CW (4xSAT-IF + DVB-T, DAB, FM)
Signal OTH-2500CW A9810 optical transmitter converts satellite signals from a quad or quatro LNB and terrestrial TV and radio signals from an antenna array (DVB-T, DAB and FM radio signals combined with an RF combiner) into optical signals in the Coarse Wavelength Division Multiplexing (CWDM) system that uses several wavelengths to carry signals in one optical fiber. The built-in WDM multiplexer enables high-quality transmission in one transmission window using 4 wavelengths (VL: 1510 nm, HL:1530 nm, VH+Terr: 1550 nm, HH: 1570 nm).
TV Optical Receiver: Signal ORH-2500CW (QUATRO 4xSAT-IF + DVB-T, DAB, FM)
Signal ORH-2500CW A9812 converts optical signals distributed via a passive optical network from the Signal OTH-2500CW A9810 transmitter into electrical RF signals. The electrical signals are the original SAT IF signals (VL–HL–VH–HH) and DVB-T, DAB, FM signals, provided through five RF outputs. The signals from the "virtual LNB" should be fed to a multiswitch or multiswitch system with the required number of outputs. The signals from the multiswitch outputs are then transmitted to the subscriber outputs via coaxial RF cables. The built-in highly efficient Automatic Gain Control (AGC) ensures a stable level of output signals.
QUATRO LNB: Inverto BLACK Ultra 0.2dBTV Optical Transmitter: Signal OTH-2500CW (4xSAT-IF + DVB-T, DAB, FM)FM Antenna: Dipol 1RUZ PM B (omnidirectional H+V)UHF TV Antenna: DIPOL 44/21-60 Tri DigitDAB / DVB-T Antenna: DIPOL-4/5-12Antenna Triplexer Terra DC015L (VHFI/II+FM-VHFIII-UHF)TV Optical Receiver: Signal ORH-2500CW (QUATRO 4xSAT-IF + DVB-T, DAB, FM)TV Optical Receiver: Signal ORH-2500CW (QUATRO 4xSAT-IF + DVB-T, DAB, FM)TV Optical Receiver: Signal ORH-2500CW (QUATRO 4xSAT-IF + DVB-T, DAB, FM)TV Optical Receiver: Signal ORH-2500CW (QUATRO 4xSAT-IF + DVB-T, DAB, FM)TV Optical Receiver: Signal ORH-2500CW (QUATRO 4xSAT-IF + DVB-T, DAB, FM)TV Optical Receiver: Signal ORH-2500CW (QUATRO 4xSAT-IF + DVB-T, DAB, FM)TV Optical Receiver: Signal ORH-2500CW (QUATRO 4xSAT-IF + DVB-T, DAB, FM)TV Optical Receiver: Signal ORH-2500CW (QUATRO 4xSAT-IF + DVB-T, DAB, FM)Satellite Dish TELMOR 120 TT Standard (white)
An example of a system for the transmission of signals via fiber-optic links from the optical transmitter to the receiver or a group of receivers (with the use of optical splitters), and then, after conversion, their distribution by multiswitches and coaxial cables.

Electrode replacement and lens cleaning in SignalFire fusion splicers.

Electrodes in fusion splicers need to be replaced at regular intervals; the actual frequency will depend on the number of splicing and calibration cycles. The estimated electrode life in Signal Fire L5870 and L5875 splicing machines equals roughly 3000 splices. Each device comes with an extra set of electrodes.
Occasionally, the electrodes will wear out sooner. You will know that this is the case when splicing cannot be performed correctly despite arc calibration: the junction is narrowed, or the fibers fail to connect at all. Importantly, the tips of worn electrodes are rounded, as opposed to new ones, which have a pointed tip.
SignalFire electrodes are extremely easy to replace; the operation does not need to be performed at a specialized service center. Simply remove the casing, unscrew the two screws, and replace old electrodes with new components. Electrodes are inserted into plastic brackets to ensure their correct position in the splicer. There is no risk of mistakes.
When you replace the electrodes in your fusion splicer, take the opportunity to clean the device, especially the lenses mounted underneath the electrodes. To do so, you can use IPA alcohol, cotton swabs, and dust-free wipes. The image above shows a dirty lens in a fusion splicer that has been used for one year (2700 splices).
Once the electrodes have been replaced, remember to activate them through the SignalFire2 app. To do so, you will need a code printed on the box. This is to guarantee that installers only use dedicated electrodes, rather than substitutes that may cause problems during replacement (incompatible plastic casings) and use (different lifetimes).

Improved RJ-45 plug crimping.

Dipol has introduced new EZ RJ-45 J2012_100 (cat. 5e) and J2013_100 (cat.6) plugs. Their hallmark is a loopthrough on individual wires that allows for a faster and more efficient termination. The plug should be crimped and passed-through wires cut off with the dedicated E7911 crimping tool.
8-pin EZ Passthrough Modular Plug (Cat.5e, for solid wires) [100pcs.]
8-pin EZ Passthrough Modular Plug (Cat.6, for solid wires) [100pcs.]
8P8C EZ modular plug (Rj-45), cat. 5e,
for solid wires, J2012_100
8P8C EZ modular plug (Rj-45), cat. 6,
for solid wires, EZ J2013_100
8-pin EZ Passthrough Modular Plug (Cat.5e, for solid wires) [100pcs.]
Plug ready for crimping
The plug is equipped with an elastic latch that prevents it from sliding out of the socket. Individual contacts have sharp, slightly spaced prongs, sticking directly into the insulation of individual wires, ensuring a reliable and durable connection.
Crimping Tool for EZ Modular Plugs (8P8C/RJ45, 6P6C/RJ12, 6P4C/RJ11)
E7911 Crimping tool for EZ Modular Plugs (8P8C/RJ45, 6P6C/RJ12, 6P4C/RJ11)

Apartment building CCTV system based on Hikvision high-resolution IP cameras.

The image below shows a CCTV system based on a Hikvision NVR and IP cameras from the EasyIP 3.0 series. The apartment building is monitored by 6 MP cameras with 2.8 mm lenses. The high camera resolution, along with its wide 99° viewing angle, allow to monitor a large surveillance area, while ensuring excellent image quality. The cameras are fitted with DarkFighter (Ultra-low-light) technology to ensure better color imaging even in low-light conditions, as compared to cameras without the solution. The outdoor area is monitored by DS-2CD2065FWD-I K17596 compact models, while the interior is fitted with DS-2CD2165FWD-I K17306 ceiling cameras. All cameras are powered and connected to the NVR by a 16-port N29986 PoE switch. When two 4 TB hard drives, e.g. M89305, are used, footage can be stored for 15 days (continuous recording at 20 fps and H.265 video compression for all cameras).
Ceiling IP Camera: Hikvision DS-2CD2165FWD-I (6MP, 2.8mm, 0.014 lx, IR up to 30m, WDR, IK10, H.265/H.264)Compact IP Camera: Hikvision DS-2CD2065FWD-I (6MP, 2.8mm, 0.014 lx, IR up to 30m, WDR, H.265/H.264)Wireless N Router: TP-Link TL-WR940N (802.11n/450Mbps, 3T3R MIMO, 4xLAN, 1xWAN)22HDD Western Digital PURPLE WD40PURZ 4TB (3.54K IP NVR: Hikvision DS-7616NI-I2 (16ch, 160Mbps, 2xSATA, Alarm IN/OUT, VGA, HDMI)PoE Switch: ULTIPOWER 2216af (16xRJ45/PoE-802.3af, 2xRJ45-GbE/2xSFP), managedCAT 5e UTP Cable: NETSET U/UTP 5e [1m], indoor
Schematic diagram of IP CCTV system based on Hikvision devices in an apartment building
Camera footage is recorded by a 16-channel NVR (DS-7616NI-I2 K22163). The M3022 screen is dedicated for local live streaming and footage analysis. After connecting the system to the Internet via the N3259 router and forwarding its ports, access to the NVR is possible within the Wi-Fi network range or from anywhere via the Internet, as well as via the cloud. Connections between the system components can be made with the use of the E1408 UTP cable.

How to increase the range of HD-TVI signal transmission.

If the maximum allowable transmission range is exceeded, image quality will deteriorate, leading to the loss of detail, blurring, etc.; considerable overruns will cause image desynchronization and loss. The problem can be addressed by using the VHD-15 M1845 amplifier to regenerate the signal. A single amplifier increases the total transmission range by about 150 m of a UTP cable or 300-500 m of a coaxial cable (depending on the type used). To extend the range even further, two or even three devices can be linked together.
HD-TVI TURBO HD 4.0 Camera Hikvision DS-2CE16D8T-IT (compact, 1080p, 2.8mm, 0.005 lx, IR up 20m)AHD, HD-CVI, HD-TVI Signal Amplifier/Repeater VHD-15HD-TVI TURBO HD 4.0 DVR: Hikvision DS-7204HQHI-K1 (4ch, 1080p@15fps, H.265, HDMI, VGA)
HD-TVI TURBO HD 4.0 Camera: Hikvision DS-2CE56D8T-IT3E (ceiling, 1080p, 2.8mm, 0.005 lx, PoC, IR up to 40m)AHD, HD-CVI, HD-TVI Signal Amplifier/Repeater VHD-15HD-TVI TURBO HD 4.0 DVR: Hikvision DS-7204HQHI-K1 (4ch, 1080p@15fps, H.265, HDMI, VGA) AHD, HD-CVI, HD-TVI Signal Amplifier/Repeater VHD-15
Application of the VHD-15 M1845 amplifier.
If a single device is used, it should be placed roughly in the middle of the transmission path to increase the transmission range. Using two devices will allows to extend the range even further.
For much larger distances, the transmission medium should be replaced by optical fiber - transmission lines can reach up to 20 km in length. The conversion can be performed with the use of Ultimode video converters.

New products offered by DIPOL

HD-TVI Video Balun Hikvision DS-1H18S/E (cable with BNC plug, 2pcs.)
HD-TVI video balun: Hikvision DS-1H18S/E M16642 allows to transmit video signals from a single source via a twisted pair cable. The balun adapts the impedance of the coaxial cable (75 Ω) to that of the balanced line (UTP/FTP cat. 5 cable). The device is compatible with PoC systems.
Single-cable Cascadable dSCR Multiswitch: Terra SRM-564 (class A, active terr. TV path, AGC)
Cascadable multiswitch: SRM-564 Terra R80564 allows for the distribution of DVB-S/S2 signals from one satellite position (or two, with the aid of a wideband converter), DVB-T broadcasts, and analog/DAB radio signals based on the digital channel stacking technology. The SRM-584 R80584 cascadable multiswitch fully supports receivers working in two dynamic modes: SCR (Unicable I - 8 User Bands) and dSCR (Unicable II - 32 User Bands).
Compact IP Camera: Hikvision DS-2CD2065FWD-I (6MP, 2.8mm, 0.014 lx, IR up to 30m, WDR, H.265/H.264)
Compact IP camera: Hikvision DS-2CD2065FWD-I K17596 is dedicated for IP CCTV systems. The camera is equipped with with a 6 MP 1/2.4" CMOS sensor and an Exir 2.0 IR illuminator with a range of up to 30 m, which ensures excellent coverage even in low-light conditions. The built-in 2.8 mm lens has a 99° viewing angle. The camera's IP67-rated housing protects all electronic components against adverse weather conditions. The camera can be powered by the conventional 12 VDC or by PoE (802.3af).

Latest news

DIPOL recognized for its sterling contribution to promoting Hikvision products. Established in 2001, Hikvision is now the largest global producer of electronic security and access control systems. This year, its Polish branch celebrates its fifth anniversary, and, at the beginning of November, a special gala was held at the company's seat in Warsaw to mark the occasion. DIPOL was one of the three leading distributors (out of a total of 33) to go away with an award plaque handed out to celebrate the five years of Hikvision's presence in Poland.
In 2007, DIPOL signed a distribution contract with Hikvision, the first Polish company to do so. A year later, its Hikvision ULTIMAX DVR won a Gold Medal for the best product at the Intertelecom trade show. Since 2015, DIPOL has ranked as the leading distributor of Hikvision products, anually awarded for its excellent sales results. Its strong position rests on wide-scale training and promotion efforts: DIPOL organizes independent HCSA training courses for installers, as well as conferences for designers, promotes Hikvision solutions at multiple telecommunications industry trade shows, and engages in broad public outreach and education by publishing technical articles devoted to the choice and configuration of equipment and installation building principles. A regular DIPOL Weekly Review - TV and SAT TV, CCTV, WLAN, published to promote new equipment and good practices in telecommunications system design reaches more than 17 thousand installers, designers, teachers and technology students, which makes it one of the most widely read industry publications in Poland.
The special award, granted on the occasion of the fifth anniversary of Hikvision Poland in recognition of a particularly fruitful partnership and DIPOL's outstanding conribution to promoting Hikvision products, was presented by Aaron Chen, General Manager Hikvision Poland. In the photo above, Janusz Pirzański, Business Manager, accepts the award plaque on behalf of DIPOL.

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