• 4.5G

    4.5G is a new version of 4G, combining the 800, 1800 and 2600 MHz frequency bands. This enables speeds of up to 375Mbps. 4.5G is not offered by all providers.

  • 5G

    5G describes the fifth generation of mobile communications expansion with a data rate of up to 10,000 Mbit/s and is much faster than LTE. 5G ensures technological progress in terms of data speed, capacity, response time and data security. Energy consumption is also reduced and the direct communication between machines and devices is made possible.

  • Adaptors for antennas

    Antenna adapters are adapters used to connect antennas and measuring instruments / gateways with different antenna connectors (e.g. FAKRA and SMA). In the process, attention must be paid to the adjustment (e.g. 50 Ohm).

  • Antenna gain

    The antenna gain is the ratio of the field strength in the main radiation direction compared to the field strength generated by a reference radiator in dB. If they are provided with the same performance at the same place.

  • BLE

    Bluetooth Low Energy (BLE) adds a power-saving variant to the conventional wireless Bluetooth data transmission. The ability to exchange data with low energy consumption is ideal for devices that require permanent connections. This includes, among others, smartwatches.

  • BTS

    A base transceiver station (BTS) is a base station in the GSM network. A BTS supplies several radio cells with radio signals and is also called a site.

  • CDMA450

    Code Division Multiple Access (CDMA) is a radio network in the 450MHz frequency range. This radio network offers a large range and good building penetration. CDMA450 focuses on the energy industry to provide a safe and reliable connection. In the course of the energy transition, the reading of smart meters or the connection of intelligent metering systems and many other areas of application are being targeted.

  • Data transmission rate

    The data transmission rate is the amount of data that is transmitted over a certain period of time.

  • DSL

    Digital Subscriber Line (DSL) is a transmission standard for transmitting data at high transmission rates (up to 1,000 Mbit/s). The DSL connection is provided via telephone network, without the need for any conversion measures. This is wired communication.

  • eHZ

    The electronic home meter (eHZ) is a digital electricity consumption meter that displays all relevant consumption data on a digital screen. This allows to identify consumption patterns and the current energy demand.


    FAKRA connectors are mainly used in the automotive industry and are used to transmit antenna signals and high-frequency signals. The plug connections are color-coded and mechanically coded to ensure maximum assembly and contact reliability. In the energy industry the FAKRA connection is mainly used for Smart Meter Gateways / iMSys.

  • Fiberglass

    Fiberglass (also: fiber optic cable) is a medium for data transmission through the use of laser light pulses via thin glass or plastic fibers. Compared to DSL, fiberglass can transport a higher bandwidth and more information per time unit. This is wired communication.

  • GPRS

    General Packet Radio Service (GPRS) is a standard for transmitting data in the GSM network (2G). For this purpose, the data is divided into small packets and reassembled at the recipient’s end. In comparison to the new technologies, the GPRS network is available almost everywhere. GPRS can reach data transmission rates of approx. 50 kBit/s and has already been supplemented in most regions with faster standards such as UMTS and LTE. With EDGE data rates up to approx. 250kbit/s are possible.

  • GSM

    GSM is short for Global System for Mobile Communications and is a technical radio standard for mobile radio systems (2G).

  • HAN

    The Home Area Network (HAN) connects devices within a small area to create a network. These devices can exchange information within the network.

  • IoT

    Internet of Things (IoT) is an umbrella term for the networking of all common electronic objects and devices that communicate with each other.

  • Industry 4.0

    Industry 4.0 is intended as an umbrella term for a future project to digitize the industry. This is the fourth industrial revolution. The key points are machine networking, information transparency, assistance systems and decentralized decision-making.

  • IIoT

    Industrial Internet of Things (IIoT) is the networking of machines and sensors in the industrial sector. The IIoT can be used to network small environmental sensors as well as the communication between complex industrial robots.

  • Coaxial cable

    Coaxial cables are asymmetrical cables for the transmission of digital signals. These cables are used to transmit high-frequency signals. In consequence, these cables can be used in antenna, transmission and measurement technology.

  • LTE

    LTE is short for “Long Term Evolution” and is an extension of the third generation of mobile communications. Compared to UMTS, LTE enables even higher upload and download rates of up to 150 Mbit/s. A bandwidth of up to 300 Mbit/s is even possible in the city.

  • LMN

    In a Local Metrological Network (LMN), the Smart Meter Gateway (SMGW) communicates with one or more meters. Communication is done via radio (e.g. Wireless MBUS) or cable (e.g. RS485, MBUS).

  • LTE Cat. M1

    LTE Cat. M1 is a mobile phone technology developed for applications in IoT and M2M communication. The LTE Cat. M1 technology can be operated in an existing LTE network and contains all the features of LTE, but lowers the data rates.

  • M2M

    Machine-to-machine (M2M) is the automatic exchange of information between end devices, as well as between end devices and server systems in industry.

  • Network operator

    A network operator is the operator of a network. In the energy sector, the network operator is responsible for the connection of energy consumers to the electricity and gas networks. These network operators are also responsible for installing the smart meters. A telecommunications network operator provides access to the telecommunications network.

  • NB-IoT

    NarrowBand Internet of Things (NB-IoT) is a radio standard for networking devices in the Internet of Things. NB-IoT enables low data transmissions with higher building penetration than the traditional mobile network. NB-IoT is focused on sensors that want to send a reduced amount of data over a long period of time. For this, battery operation without a local gateway is frequently used. For this purpose, the functions of LTE, such as connection retention when changing cells or encrypted communication, are switched off in favor of energy consumption and costs.

  • RSSI

    The Received Signal Strength Indicator (RSSI) indicates the received signal strength in decibel milliwatts (dBm). This indicator shows how well the machine receives the signal from a base station or router. An excellent value lies between -60 and -70 dbm. The closer the value is to 0, the better the signal.

  • Signal level

    The signal level is a logarithmic quantity from the ratio of the power root quantity and a reference value. Typically indicated in decibels (dB).

  • Broadcast power

    The broadcast power describes the power of a transmitter. Usually given in watts or dBm. The value can define the input and output power. In the field of mobile radio, the broadcast power is indicated as radiated power relative to a reference antenna. With higher performance, the range, the stability of the connection and the data throughput increase.

  • Signal delay

    The signal delay represents the time a signal requires, from entering the system to leaving it. Signal propagation times are often measured end-to-end, i.e. from a terminal device (e.g. a gateway) to a server system and back.

  • SMA

    SMA is short for Sub-Miniature-A and describes connectors for the transmission of radio signals. The plug is connected to the socket by a threaded connector. SMA cables are used in high frequency and microwave technology.

  • SIM

    The Subscriber Identification Module (SIM) is responsible for the unique identification of the user and access to a mobile network via SIM card.

  • SMGW

    A Smart Meter Gateway (SMGW) is the central element of an intelligent metering system. The SMGW is subject to the high security requirements of the Metering Point Operation Act (Germ. MsbG), as it represents the communication unit of the system. The Smart Meter Gateway stores data, processes it and sends it to the market players. Therefore, all communication flows must be encrypted. To start the official smart meter roll-out, three SMGW providers must be certified by the German Federal Office for Information Security (BSI). Until now, only one provider has met the criteria, with further certifications having been estimated during the course of 2019.

  • Smart Meter

    A smart meter is an intelligent measuring device. This meter is used to check the energy consumption. Depending on the device / meter, the electricity, water and gas consumption can be measured. A smart meter is a digital consumption meter that can independently exchange consumption data with the operator via a Smart Meter Gateway (SMGW). In addition, this meter can communicate with consumers and contribute to the energy system transition.

  • UMTS

    UMTS is short for Universal Mobile Telecommunications System and is the third generation of mobile communications (3G). This mobile phone standard enables significantly faster transmission rates than GSM.

  • Virtual network operator

    A virtual network operator is an infrastructure provider who does not have its own access network.

  • WAN

    A Wide Area Network (WAN) is an interconnection of several networks and devices over long distances to form a network.