1U Rack-Mount and Embedded -48V DC Systems Tailored for Spanish Base Stations and High-Density Node Implementations.
Spain is experiencing an unprecedented acceleration in digital transformation, driven by massive investments in 5G expansion, rural fiber-to-the-home (FTTH) networks, and the strategic positioning of Madrid, Barcelona, and Malaga as southern European data hub gateways. The merger forming Masorange, alongside continued infrastructure rollouts by Telefónica and Vodafone España, has triggered a high-density migration of networking nodes. Operating in Spain's varied topography and climate—from the sub-zero winters of the Meseta Central to the blistering summers of Andalusia—requires highly resilient, thermally optimized telecom power supplies.
Standard telecommunication frameworks rely on the **-48V DC power system** architecture. By utilizing negative polarity, these systems prevent galvanic corrosion on underground copper lines and structural setups. As network operators transition to smart grids and green energy inputs, the integration of high-efficiency rectifiers (boasting 95% to 96.5% performance metrics) is imperative to reduce overall Power Usage Effectiveness (PUE) and minimize heat dissipation in confined street cabinets.
EVS Powers is dedicated to aligning with Spain's environmental guidelines, delivering modular power platforms compliant with the CE mark, Low Voltage Directive (LVD), and RoHS rules, supporting the decarbonization of Spain's information and communications technology (ICT) sector.
Providing seamless, uninterrupted DC power in demanding settings, from high-speed transit networks to mountain micro-sites.
Spain owns Europe's longest high-speed rail network. EVS Powers provides robust 48V rack-mount systems tailored to endure mechanical shock, high vibration, and wide input voltage fluctuations along the tracks, ensuring uninterrupted signaling and communication for Adif (Administrador de Infraestructuras Ferroviarias).
Deployments in Spain's coastal regions face high humidity and saline atmospheres, while Pyrenean sites experience severe freezing. Our 48V power shelves feature conformal-coated PCBs, wide operating ranges (-40°C to +75°C), and smart cooling fans that dynamically adapt to the ambient environment.
With Madrid emerging as a primary European cloud interconnect point (FLAP-M), space is at a premium. EVS Powers' 1U modular power systems deliver up to 6kW in a compact footprint, supporting remote SNMP/Modbus control protocols for simplified integration with building management systems (BMS).
As telecom operators switch from lead-acid batteries to lithium (LiFePO4) storage chemistries, the role of the rectifier controller changes significantly. Power units must act as smart gateways, actively coordinating charging cycles with integrated Battery Management Systems (BMS) over CAN-bus or RS485 communication protocols.
Our technology pipeline is committed to:
Located in the international trade hub of Guangzhou, China, **Guangzhou EVS Powers Co., Ltd.** is an established OEM/ODM manufacturer specializing in switching power supplies, telecom DC power systems, DC-DC converters, and pure sine wave inverters. We leverage China's mature electronics ecosystem to source premium-grade components, ensuring high reliability while maintaining cost-effective manufacturing processes.
Our operational ethos rests on three core pillars: Client satisfaction as our primary mission, uncompromising product quality as our growth foundation, and cost-efficiency to pass on direct savings. EVS Powers has earned a strong international reputation across Europe, South and North America, Australia, the Middle East, and Southeast Asia. We are dedicated to sharing our design expertise, process technology, and application engineering experience with Spanish telecom integrators to build reliable, long-term partnerships.
Wire Cutting
Plug-In
Soldering Tin
Test
Glue Filling
Burn-In Test
Packaging
Winding Machine
Wire Cutting Machine
Automatic Soldering Machine
Laser Engraving Machine
Canning machine
EVS Powers Integrated Main Assembly Line
Every single power system leaves our facility only after passing rigorous European compliance testing protocols.
To deliver consistent MTBF (Mean Time Between Failures) metrics exceeding 300,000 operational hours, EVS Powers maintains a state-of-the-art testing lab. Our DC Power Supply Testers evaluate electrical boundaries, while dedicated AC Withstand Voltage testbeds verify insulation performance against lightning strikes and utility surges.
We replicate Spain's diverse climate conditions in our Constant Temperature & Humidity Chambers, exposing rectifiers to extreme thermomechanical stress. Additionally, optical microscopes monitor solder joint reliability, preventing thermal fatigue failures.
DC Power Supply Tester
AC Withstand Voltage Tester
Constant temperature and humidity chamber
Optical microscope
Aging test
Design
Explore our highly reliable product lines, optimized for Spanish industrial networks and communication base stations.
Detailed insights on installing and configuring EVS -48V DC Telecom Power Systems.
Operating at -48V DC creates a negative electrical potential relative to the earth. In the presence of moisture (highly common in coastal environments like Barcelona or Bilbao), this configuration protects metallic wiring and connector pins from anodic electrochemical corrosion, extending the service life of external copper connections.
Yes, our modules feature integrated controllers supporting SNMP (v1, v2c, and v3) and Modbus (RTU/TCP) protocols. This enables field engineers to monitor real-time voltage levels, load currents, battery temperatures, and alarm states remotely using standard network management platforms.
Our telecom rectifiers achieve standard efficiency levels of 95.5% to 96%. Compared to legacy 85% efficient linear systems, this significantly reduces internal power losses and heat dissipation. By running cooler, systems deployed in outdoor cabinets require less active cooling, lowering site PUE and operational costs.
Absolutely. Every EVS telecom power system is fully certified to CE and complies with the UNE-EN 62368-1 standard for ICT equipment safety, alongside UNE-EN 55032/55035 for electromagnetic compatibility (EMC). Additionally, they comply with the European RoHS and WEEE directives for environmental safety.
Yes. Our smart controller series features configurable dry contacts and programmable alarm parameters. This enables integration with solar charge controllers and wind turbines, prioritising renewable sources and using the utility grid as a secondary backup.
We work closely with Spanish freight forwarders to offer flexible shipping options, including sea, air, and rail freight (via the Silk Road rail link). We provide remote technical support, detailed installation manuals, engineering diagrams, and spare parts packages to ensure smooth integration into Spanish national networks.
EVS Powers