Telecom Power Solutions for Outdoor Cabinet Integration by SOROTEC
Outdoor network infrastructure — from 5G base stations to edge computing nodes — depends on power systems that can operate reliably outside the controlled environment of a traditional equipment room. Shenzhen Soro Electronics Co., Ltd., operating under the brand SOROTEC, has built a dedicated telecommunication power product line that answers this need through outdoor DC power systems, hybrid power-supply cabinets, and PV-coupled controller modules designed specifically for cabinet-based, machine-room-free deployment.
Understanding the Core Challenges of Outdoor Telecom Power Supply
According to SOROTEC's industry pain point analysis, network operators face several recurring obstacles when powering outdoor equipment. High power consumption of 5G base stations, combined with limited construction space and expensive operating electricity bills, makes conventional grid-only power supply costly to sustain. In regions where power infrastructure is underdeveloped, grid fluctuations and instability further complicate the task of keeping communication equipment continuously online. These conditions require power systems that not only convert and deliver energy efficiently but also physically withstand outdoor exposure without relying on a dedicated equipment room.
SHW48500: Outdoor DC Power System for 5G Base Stations
SOROTEC's SHW48500 is positioned as an outdoor DC power system built specifically for 5G base stations. It is engineered to address the high power consumption, limited construction space, and expensive operating electricity bills that operators encounter in the field.
A defining feature of the SHW48500 is its PV Priority Power Supply capability. The system incorporates a built-in MPPT controller with PV conversion efficiency of up to 99%, allowing solar generation to be prioritized ahead of grid power whenever available. This directly reduces the electricity expenses that operators would otherwise incur from continuous grid draw.
On the deployment side, the SHW48500 uses an outdoor-ready, machine-room-free design rated at IP55 protection level. This means the unit can be installed directly at the base station site without the civil engineering costs associated with building a dedicated shelter, which is a meaningful advantage for operators expanding network coverage into new or remote areas.
PV-Coupled Controller and Hybrid Power Supply Cabinet System
For scenarios that require a more integrated cabinet-based approach, SOROTEC offers an intelligent hybrid power supply PV-coupled control cabinet system. This product line is positioned to solve three specific challenges common to communication power scenarios: guaranteeing continuous power supply for equipment such as base stations, enabling online hot-swap maintenance, and achieving seamless, imperceptible switching between multiple power sources.
The system's core differentiated value lies in its Imperceptible Dual-path Switching logic. When the PV-coupled controller's conversion voltage exceeds the base station's original power cabinet DC voltage, the system automatically switches to prioritize PV power. When PV output is insufficient, it seamlessly reverts to the original power supply, so the connected equipment experiences no interruption during the transition.
Maintenance is simplified through Hot-swap Minimalist Maintenance, made possible by the cabinet's modular design, which supports online hot-swap of components for convenient servicing without shutting down the system. The cabinet also performs Smart Collaborative Detection, continuously monitoring operating and control parameters to adjust for battery undervoltage, overload, and overcharge conditions. Efficient Conversion and Compensation is achieved through DC/DC conversion, MPPT-based constant current charging for batteries, and temperature compensation, resulting in efficiency of at least 95% in pure electric mode and at least 98% in pure PV mode.
This hybrid cabinet system is offered across a capacity series of 100A, 200A, 300A, 400A, and 500A, with an AC input system supporting three-phase five-wire configuration compatible with single-phase input. Cabinet dimensions are available in 600×600×1200 mm, 600×600×1600 mm, and 600×600×2000 mm formats, with user equipment space ranging from 3U to 15U and a cabinet weight of 82 kg excluding modules and the monitoring unit. It is designed for an operating temperature range of -20°C to +55°C and relative humidity of 5%RH to 90%RH, non-condensing, making it suitable for mobile communication base stations and edge computing power supply applications.
SHWB Series: 48V Distributed PV-Coupled Controller Modules
Complementing the cabinet system, SOROTEC's SHWB4875, SHWB48150, SHWB48225, and SHWB48300 modules serve as the 48V distributed PV-coupled controller components installed within the subrack. These modules are available in power specifications of 4000W, 8000W, 12000W, and 16000W, with MPPT efficiency exceeding 99% and overall conversion efficiency of 98% or higher.
Each module supports a PV input rated voltage of 68VDC, adjustable across a range of 60 to 150VDC, with a DC output voltage range of -42 to 58VDC and a rated output of 54VDC. Communication is handled via RS485 or RS232 using the standard Modbus protocol, with an optional RTU 4G interface for remote monitoring — a relevant feature for operators managing distributed outdoor sites. The modules carry an IP55 protection level for outdoor use and IP21 for indoor use, and are equipped with an LCD touch screen panel displaying module information, voltage, current, and power generation data alongside a DC energy meter.
A Long-Standing Relationship with Telecommunication Operators
SOROTEC's telecom power business is grounded in an extended track record with major communication operators. The company has served as a key supplier for China Mobile, China Unicom, and China Tower for over 20 years, providing DC power systems for their base stations. According to SOROTEC's case documentation, this cooperation has focused on improving the online rate of communication networks, particularly in areas where power supply is unstable — a direct response to the reliability requirements inherent to outdoor telecom infrastructure.
Positioning Within a Broader Energy Portfolio
SOROTEC is a high-tech enterprise focused on the research, development, and production of power electronics and new energy products, headquartered in Bao'an District, Shenzhen, with business coverage across more than 100 countries and regions. Its telecom power solutions are supported by a manufacturing base of 30,000 square meters equipped with automated SMT workshops and full-process testing laboratories, along with quality management certifications including ISO9001, ISO14001, and ISO45001. Product conversion efficiency for SOROTEC's equipment generally reaches above 97%, with a failure rate controlled below 0.1%, figures that are consistent with the efficiency specifications outlined across its telecom-specific product lines.
For network operators evaluating outdoor cabinet-integrated power infrastructure, SOROTEC's combination of the SHW48500 outdoor DC power system, the PV-coupled hybrid power supply cabinet, and the SHWB series distributed controller modules offers a technically documented pathway toward machine-room-free, hot-swap-capable, and PV-prioritized power delivery for outdoor network equipment.
https://www.sorotecpower.com/
Shenzhen Soro Electronics Co., Ltd.
