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No 24/2025 (June 16, 2025)
ANGA COM 2025 - a key forum for the development of digital infrastructure in Europe.
The ANGA COM 2025 trade fair and conference, which took place from 3-5 June 2025 in Cologne, confirmed its position as a central platform for the exchange of knowledge and experience in the areas of broadband Internet, fibre optics, digital media and telecommunications. The event was attended by more than 22,000 professionals from around 80 countries and more than 480 exhibitors from 42 countries. The latest solutions in network infrastructure, streaming services and digital media transformation were presented.The conference programme included more than 60 panels with around 250 speakers, including decision-makers from the public and private sectors. Dominant topics included the development of FTTH (Fiber to the Home), migration from copper to fibre, Open Access, EU regulations, marketing strategies for operators and the adaptation of AI in the media and data sector. Of particular importance were thematic sessions such as the Gigabit Summit, the Media Summit and the Fiber Summit, focused on the challenges and prospects for the digitalisation of Germany and Europe as a whole.
Source: anga.com press materials
ANGA COM 2025 confirmed its position as the main platform for integrating network operators, technology providers, content platforms and industry regulation - all with the potential of more than 200 million households in Europe. Representatives from major companies such as Deutsche Telekom, Vodafone, Deutsche Glasfaser, ProSiebenSat.1, WDR, RTL, Sky and DAZN participated in numerous panels and presentations.
A number of innovative technology solutions were showcased at the fair, pointing to the future direction of broadband, TV and media infrastructure in Europe. One of the key developments was the launch of Harmonic's cOS virtual platform, which provides a universal solution for managing networks based on DOCSIS 3.1, DOCSIS 4.0 (FDX and FDD) and fibre. The platform enables the integration of access technologies into a single management console, significantly streamlining operations and allowing operators to deliver ultra-low latency services - crucial for applications such as online gaming and video conferencing. The solution is supported by analytics based on artificial intelligence. There was also widespread interest in Teleste's offering, which showcased infrastructure components for HFC networks operating at frequencies up to 1.8 GHz, as well as solutions for distributed access architecture (DAA) and passive components for FTTH networks. The company also showed its CATVisor Argus tool for advanced network monitoring and management. In turn, Witbe, together with TAG Video Systems, presented its browser-based Virtual NOC platform for remote testing and monitoring of video quality of service (QoE) on real end devices. New features included intelligent QoE alerts, advanced adaptive broadcast analytics (ABR) and functions integrated with DevOps and CI/CD processes. The contemporary needs of digital content providers were also reflected by Interra Systems, which presented an enhanced version of its ORION system for automated video content quality control and distribution.
All in all, ANGA COM 2025 once again rose to the challenge: it brought together thousands of professionals from all over the world, showcased the latest broadband, fibre, media and AI technologies, and provided a platform to discuss the future of European digitalisation.
Which Hikvision video door entry system to choose: 2-Wire IP, 2-Wire HD or maybe IP?
Hikvision currently has three video intercom systems in its product range: 2-Wire IP, 2-Wire HD and an IP system. The choice of the right system for a customer can be dictated by two factors which include: functionality and the type of communication bus between the devices.If the system is being built from scratch, including cabling, it is best to use twisted-pair and choose an IP system. This system is characterised by the greatest functionality and resistance to interference. Due to the network communication between the devices and the standard-compliant PoE power supply, we have a guaranteed communication and power supply range of up to 100 m. The IP system allows, among other things, the construction of large and functional systems, the control of two relays at the door station, integration with the monitoring system, remote operation via the Hik-Connect app and much more.
If you want to upgrade an old intercom system that has cabling based on straight or paired cable, you can use either the 2-Wire IP or 2-Wire HD system. In both cases the power supply and the establishment of communication between the devices is done using two wires of cable, but the systems are slightly different. The 2-Wire IP system is in fact an IP system in which two wires of a straight or paired cable and a special distributor (switch) are used for communication between the connected devices and their 24 V DC power supply. The distributor has a network interface that allows connection to a switch, router or directly to a computer, as well as activation, IP address setting and configuration. Once activated, the system is basically no different from an IP system from the user side. However, before choosing it, the installation requirements and communication ranges between devices should be studied in detail, as they are different to those of a typical IP system.
Presentation of the 2-Wire HD system
Hikvision's latest video door entry solution is the 2-Wire HD system, which is a slightly different approach. Power and communication between units is provided via a two-wire bus using the DS-KAD7060EY G74828 master distributor and DS-KAD7061EY G74830 floor distributors. It is also possible to feed monitors within a premises from another monitor. The approach to configuring the addressing of the devices has also been changed, which is carried out using DEC switches located at the rear of the door station and monitor housings. Once the addresses are properly set on the switches and connected to the power bus, the system is immediately operational. So there is no need to think about what IP address and premises number has been assigned to the monitor, as this configuration can be done directly at the premises before the monitor is installed, without the need for a computer. The system is very flexible in terms of design, thanks to the use of floor distributors and the possibility of feeding monitors from other monitors. Additional configuration is possible by activating Access Point mode at the door station and connecting to it wirelessly via a smartphone or WiFi-enabled computer. In the 2-Wire HD system, the voltage on the communication bus is DC 48 V and is not compatible with the 2-Wire IP system. This system has the possibility of remote operation via the HikConnect app when the monitor is connected to the Internet via a WiFi interface, but it cannot be integrated into the monitoring system. When selecting it, it is also important to pay attention to the installation requirements and communication ranges between the devices.
Satellite converter with optical output.
In the case of a fibre-optic bus, the size of the TV installation is irrelevant. The signal can be transmitted over hundreds of metres or even tens of kilometres without the need for regeneration. In the case of large buildings, this greatly simplifies the backbone of the installation. A traditional installation, based on copper wires, allows the signal to be transmitted in the trunk line over several tens of metres. This distance can be increased through the use of amplifiers - although this too carries certain limitations (and implementation and operating costs).TERRA equipment for SMATV/MATV systems in multi-family buildings, based on fiber optics and PON (Passive Optical Network) technology, is an excellent alternative to typical installations based only on coaxial cables. PON is a technique using only passive infrastructure (optical fibre cabling, optical splitters) at the optical converter-receiver section.
Example of a fibre optic installation using the LWO102 4F31 E A3033 optical converter with +4 dBm power enabling distribution of DVB-S2X/S2/S satellite signals in single-mode fibre at 1310 nm wavelength. A wide range of optical receivers from TERRA allows to implement television installations based on traditional multiswitches, dSCR/Unicable, as well as hybrid installations.
When to buy an external antenna for LTE/5G?
In many cases, when the base station is far from the mobile device, there are problems with adequate signal strength. In order to improve it, it is usually necessary to connect a suitable external antenna to the modem. Before selecting the antenna, it is necessary to check the parameters of the network signal received by the modem. To do this, run the network diagnostic panel found in the software of the router or modem, and then compare the parameters with the values presented below.- RSRP (dBm) - (Reference Signal Receive Power) - measure of the signal strength
- more than -79 dBm - very good signal strength
- from -80 dBm to -90 dBm - good signal strength
- from -91 dBm to -100 dBm - poor signal strength. Need for an outdoor antenna or finding a better location of the modem.
- less than -100 dBm - very poor signal strength. It is necessary to use an outdoor antenna.
- RSRQ (dB) - (Reference Signal Received Quality) - measure of the signal quality
- more than -9 dB - very good
- from -10 dB to -15 dB - good
- from -16 dB to -20 dB - bad. Need for an outdoor antenna or finding a better location of the modem.
- less than -20 dB - very bad. It is necessary to use an outdoor antenna.
- SINR (dB) - (Signal to Interference plus Noise Ratio) - measure of signal quality with respect to interference
- more than 21 dB - very good
- from 13 dB to 20 dB - good
- from 0 dB to 12 dB - bad. It is necessary to use an outdoor antenna.
- less than 0 dB - very bad. It is necessary to use an outdoor antenna.
- RSSI - Received Signal Strength Indicator
- more than -73 dBm - very good
- from -75 dBm to -85 dBm - good
- from -87 dBm to -93 dBm - bad. Need for an outdoor antenna or finding a better location of the modem.
- less than -95 dBm - very bad. It is necessary to use an outdoor antenna.
TRANS-DATA 5G KYZ 10/10 antenna, 5 m cable, SMA, 698-960, 1710-2700, 3300-3800 MHz A741027_5
IEEE 802.3bt - PoE standard for higher-power network devices.
The IEEE 802.3bt standard, also known as PoE++ or 4PPoE, enables much higher power to be transmitted over an Ethernet cable. It makes it possible to power equipment with high power consumption - such as PTZ cameras with heaters, IP network speakers, laptops, monitors, lighting or information kiosks - without the need for additional power sources. This significantly simplifies installation, reduces infrastructure costs and increases network design flexibility.
802.3bt uses all 4 pairs, while 802.3af and 802.3at only use 2 pairs (which ones? - it depends on the end device)
IEEE 802.3bt is an extension of previous PoE (Power over Ethernet) standards such as 802.3af and 802.3at. It introduces the ability to power devices over all four pairs of wires in an Ethernet cable to increase the available power. The standard defines two new types of power supply:
- Type 3 - up to 60 watts of power per port (min. 51 watts available to powered device)
- Type 4 - up to 90 watts of power per port (min. 71 watts available for powered device)
| Parameter (unit) | IEEE 802.3af (Type 1) | IEEE 802.3at (Type 2) | IEEE 802.3bt (Type 3) | IEEE 802.3bt (Type 4) |
| Name | PoE | PoE+ | PoE++, 4PPoE, UPoE, | 4PPoE, UPoE, High Power PoE |
| Power supply (PSE) (W) | 15.4 | 30 | 60 | 90–100 |
| Min. power for device (PD) (W) | 12.95 | 25.5 | 51 | 71 |
| Number of power pairs | 2 | 2 | 4 | 4 |
| Power Supply Vol;(PSE) power supply (V) | 44–57 | 50–57 | 50–57 | 52–57 |
| Voltage for device (PD) (V) | 37–57 | 42.5–57 | 42.5–57 | 41.1–57 |
| Maximum current (mA) | 350 | 600 | 600 (per pair) | 960 (per pair) |
| Required cable | Cat 5e | Cat 5e | Cat 6 | Cat 6A |
The high available power not only proves its worth when powering demanding devices, but also makes it possible to create extended, serial connections of more PoE extenders. This is particularly useful when several network devices (e.g. IP cameras) need to be connected on a single UTP cable or when an additional network branch is needed. The lack of the need to supply AC 230 V to each point significantly reduces the overall cost of the installation and increases its security.
10 Gbit/s in multimode fibre - the pitfall of OM2.
Fibre transmission at 10 Gbit/s is now becoming the standard for network implementation in office buildings, multi-family buildings and even homes. This speed is no longer only required in the network backbone, but also at the direct connections of the end stations.When deciding to use multimode fibers, remember that the ranges for 10 Gbps are limited. The most popular fiber standard MM OM2 enables transmission at a speed of 10 Gbps over a maximum distance of 82 m, i.e. less than copper twisted pair category 6A certified for that speed (100 m according to the 10GBASE-T standard). This can be really tricky to network designers or contractors who do not pay attention to the fiber standard in the cable used.
When using SFP+ 10 Gbit/s multimode inserts (here L1425) in the network, one should remember to select an appropriate fibre standard for the transmission distance
The higher multimode fibre standards, i.e. OM3 and OM4, allow 10 Gbit/s transmission over distances of 300 m and 500 m respectively. Their choice is therefore much safer in this regard. The affordable OM3 is also a good choice for local network development, as it offers 40 Gbit/s and 100 Gbit/s connections over a distance of 100 m.
 | Precision cutting pliers for cable strands (Base Link HS-4501) E8007 made of stainless steel for extremely fine cutting of stranded twisted pair cable strands and more. | |
 | Markers, markers "A-C" LETTERS for cable 4.0-6.0 mm 3x30 pcs. Goobay E9502 are useful in installations centred around large cable bundles - e.g. multiswitch, LAN or CCTV installations. Using the marker, it is much quicker to identify both ends of the same cable. They are made of reusable plastic and can be slid onto the cable. | |
 | Antenna connector TV/IEC socket - TV/IEC socket The E8273 is used to connect two antenna cables with male plugs. | |
Worth reading:
Installation of a TV-SAT system in a single-family house. The aim of the installation was to make a collective TV installation enabling the distribution of satellite signals (from one satellite position - HotBird 13°E) to a maximum of 8 subscriber outlets with the possibility of further expansion with a DVB-T2 terrestrial TV signal...>>> more
A 90 cm diameter FAMAVAL 85 TRX-EL-OPT A9655 steel satellite dish, mounted on a 50 mm diameter mast E905121, was used to receive satellite signals. The antenna is equipped with a QUATTRO A9864 type converter, which provides four independent outputs of polarisation signals: H/L, H/H, V/L and V/H. The positioning of the dish was done with a signal meter type COMBO ST-5150 R10155, with accurate positioning to the satellite HotBird 13°E.
120 cm satellite dishes for SMATV systems
