High Gain E-Band Radios For Maximum Dual Band Link Performance
October 2022 Konstantinos Dimopoulos,
Senior Product Manager, Wireless Network Systems

Dimos Kothris,
IoT & Smart City Solutions Expert, Telco & Enterprise Software

Dimitris Tsiamis,
Presales/Product Marketing Engineer ( Ether Applications S.A.)

EV Charging Drivers and Market

The European Union commission is working through a package of proposals to reduce CO2 emissions by at least 55% till 2030, compared to 1990 levels. These proposals are coded with the iconic name «Fit for 55» and contain legislative initiatives to promote ‘Green Deal’ policy. For the automotive industry the target for CO2 emissions of new cars will be zero by 2035, which means practically the end of internal combustion engines (petrol and diesel).

The Electro Vehicle (EV) market in Europe and worldwide is steadily increasing and new EV models are coming up continuously from car manufacturers. Due to EV battery price reduction, price parity with petrol and diesel cars is expected to be a fact soon. Approximately 6M public EV chargers will be needed by 2030 at European level and one fast charging station per 60 km on highways is expected. (

For Greece, large or medium-sized municipalities have to prepare an Electric Vehicle Charging Plan (ΣΦΗO) for establishment of publicly accessible charging points and provide at least one charging point per 1,000 municipality inhabitants. Taxi stands and Bus stations are included herein as well as smaller municipalities. Moreover, publicly accessible or controlled access areas like Commercial Hubs (shopping centers, supermarkets), Workplaces with Car parking lots, Airport parkings, Hotels, Hospitals, Car Rental or Repair companies, Entertainment and Restaurants, Shared Charging on Multi-Dwell properties, Gas stations, Governmental locations are potentially EV charger deployment domains.

Intracom Telecom positioning

Intracom Telecom cooperates with internationally acknowledged companies in the field of EV charging and can meet the market requirements with the following EV charger categories:

  1. AC chargers equipped with one (1) socket of up to 22KW power supply, intended mainly for (semi) private parking spaces.
  2. AC chargers equipped with two (2) sockets up to 22KW each, suitable for private, semi-public or public areas.
  3. DC charger, up to 50KW supply for semi-private or public spaces.
  4. DC chargers of 60KW - 300KW for locations with higher power requirements.

Intracom Telecom develops and provides software for EV chargers operation management, health monitoring and EV usage reporting.

The total EV charging solution provided by Intracom Telecom covers the specifications of publicly accessible EV charging points, in accordance to Greek Legislation (Law 4439/2016, KYA 42863/438, Law 4710/2020) which incorporates the relevant European directive and defines the EV chargers (IEC 61851) and sockets (IEC 62196-2 Type 2) specifications for the public stations as well as provisions for EV chargers installation in various locations and electro-mobility market. In addition, our offering complies with HEDNO's technical requirements for Public Access Mode 3 EV Chargers as well as connection to electricity network requirements.

Charging Modes and socket types

Depending on the communication protocol between the car and the charging point, there are 4 charging Modes for EVs. Mode 1 and 2 are for residential use and Mode 3 and Mode 4 for public (semi-private, public access) stations. The Mode of charging is independent of the connectors used on each case.

  • Mode 1 provides up to 16A/11KW AC charging for private places, but with no communication, control or protection protocol. It is not recommended since there is no guarantee that RCD (residual circuit detector) is included in the building installation.
  • Mode 2 provides up to 32A/22KW AC charging for private places. This mode uses an in-line integrated electronics box which emulates the communication of an external charging point (of Mode 3) and allows the cable (instead of the charging point) to communicate with the car. This device provides protection and communication through cable. It does not provide any control.
  • Mode 3 provides up to 63A/43KW AC charging for public places and communication to the EV with protection and charging control. Type 2 (or Mennekes) plug is used in Europe for Mode 3.
  • Mode 4 provides Rapid (50KW) or Ultra-rapid (till ~300KW) charging for public spaces with Direct current (DC). It by-passes the car embedded EV charger, charging directly to the EV car battery. Type 2-CCS (Combined Charging System) or CHAdeMO plugs are used for Mode 4.
Charging Modes

Charging time is affected by the size of the battery (capacity), the state of the battery (empty vs full), the max charging rate of the vehicle (max rate the vehicle on-board charger can accept ), the max charging rate of the charging point (provided power), as well as environmental factors (colder ambient temperature increases charging time). The charging time for AC chargers may range from 2 to 8 hours and for 50KW-DC chargers ranges from 25’ to 45’ for 70-90% of the battery capacity.

AC Chargers Overview

The AC chargers can be ground, pole or wall mounted with the following basic characteristics:

  • The maximum Output Power is 22KW per socket, for up to two 3-phase Type 2 sockets.
  • The chargers have protection devices per socket and a separate switch for the protection of the charger controller. They also provide overvoltage protection and interruption for safety reasons of the charging circuit in case of relay contacts welding. (Hardware-redundant Cut-off). Moreover, chargers provide an energy meter per socket which is certified according to the MID (Measuring Instrument Directive) 2014/32/EU.
  • User Identification takes place through RFID cards, smartphone App (use of QR code) or central management software and Graphics Screen provides instruction display with interaction capability for end user.
  • Communication with the Management Center is supported through ΟCPP (Open Charge Point Protocol) protocol with Ethernet or 4G connectivity.
  • Possibility of Load Management for simultaneous charging of more cars with dynamic power adjustment. Load Management is provided:
    • for power sharing between the sockets of the same charger
    • between different chargers statically or dynamically shared and
    • through a central software management system
  • Casing is made of high quality and durability material, resistant to extreme weather conditions and access protection is provided through locking.

Different ΑC models and variants inherit aforementioned characteristics:

  • Model providing 1 x 11KW or 1x 22KW socket.
  • Model providing 2 x 11KW or 2x 22KW sockets for (semi) public access locations. In addition there is a variant especially useful for cluster of chargers in parking lots which provides embedded bus-bar equipment for supplying power on a bus topology, thus avoiding additional electrification costs required on star topology.
  • Model with 2 x 22 KW AC sockets, suitable for ground mounting on public access spaces (e.g pavements) where metering and connection devices (MCB, strain relief) should be hosted in chargers’ properly configured compartment, according to Distribution Operator (HEDNO) requirements.
DC Chargers Overview

DC chargers are ground mounted and share the afore-mentioned characteristics of AC chargers supporting concurrently one (1) DC charging session (Mode 4) at 24, 50 or >50KW power output and one (1) AC 22KW charging session (Mode 3). According to the European Union regulatory framework, DC charging stations must be equipped with a Type 2-CCS plug, but at the same time allow the existence of a plug according to the CHAdeMO standard, or AC charging.

Photo of a home with car charger

DC chargers may have up to 3 outputs:

  1. one DC Type 2 - CCS
  2. one DC CHAdeMO type with the possibility of using only one of the two DC at any time and
  3. one Type 2 AC 22KW.

Different models and variants are available on this product family:

  • 24KW
  • 50KW
  • Greater power models (> 50KW till 300KW).
EV Charger Management SW

The electric vehicle charger management platform is a necessary part of the overall solution for the effective, safe, and efficient remote monitoring and management of the charging infrastructure. Intracom Telecom offers a scalable and comprehensive charger management SW solution, powered by its in-house uiTOP™ unified IoT orchestration platform that helps Charging Point Operators (CPOs) optimize operations and reduce their TCO. Additionally, an e-Mobility Service Provider (e-MSP) application can be provided for drivers allowing them to easily find charging points of interest, manage charging & payments and review historical transactions. The SW solution is pre-integrated with the offered chargers but can be expanded to include additional charger equipment types and manufacturers through open protocol standards such as OCPP, REST. The charging management software exposes a web based interface through which authorized users can gain valuable business and operational insights, tweak the infrastructure, manage monetization and expand the network.

Key features include:

  • Real time monitoring of chargers (location on map, operating status, active faults, etc.).
  • Easy management and configuration of chargers (arbitrary grouping, restarting the charger, locking the charging function, etc.).
  • Comprehensive load & tariff (session, time, KWh) management.
  • Billing & payments enablement (Charging Point Operator / e-MSP / Customers).
  • Access to historical transactions.
  • Creation of tailored reports related to Usage, Energy consumption, Maintenance, Revenue generation, etc.
  • Activation of configurable alerts (charger faults, communication failure, unexpected usage, etc.).
  • An open API for integration with third party system systems (CRM, ERP), service providers (CPOs for roaming, e-MSPs, payment service providers) or Grid operators.
  • Smart city extensions (create synergies with city infrastructures – i.e. lighting, parking, etc.).
Charging Modes
Professional Services

Intracom Telecom with Ether have joined forces to provide a full range of professional services which complement the HW & SW and provide a Turn-key EV Charging Solution. These services include site survey, electromechanical design and licensing issuance followed by EV charger installation. Such Installation includes connection with supply cables to the low voltage of the electricity distribution network as well as EV charging signage, painting of the parking points and concrete bases construction for placing the chargers with protective barriers installation in front of the charger. Afterwards, charger configuration and communication tests with the remote management SW takes place and Solution training ensures customer familiarization with both HW and SW. Moreover, Technical Support and Maintenance (for charger and end user) as well as Preventive EV charger maintenance during and after the HW warranty is offered.