Product Overview
The ETP48100‑B1 is a highly integrated, carrier‑grade 1U 19‑inch rack embedded DC power system designed for telecom access networks, OLT equipment, BBU/RRU, small base stations, data rooms and edge computing scenarios. It converts wide‑range AC input into stable adjustable –48V DC output, with a maximum output current of 100A and rated power 3000W.
Adopting a compact 1U structure, front maintenance, intelligent monitoring and full protection design, this system ensures high efficiency, reliable operation and easy deployment. It is the preferred compact power solution for modern communication equipment and space‑limited equipment rooms.
Key Features
Standard 19‑inch 1U ultra‑slim design, perfect for 600mm deep cabinets and narrow spaces
Wide AC input range 110–240VAC, 50–65Hz, compatible with global single‑phase grids
Stable adjustable DC output –42V ~ –58VDC, max output current 100A, rated power 3000W
High efficiency >96%, low power consumption and heat generation
Modular rectifier & monitoring design, supports hot‑swap for easy maintenance
Intelligent monitoring with real‑time data display, fault alarm & remote communication
Full front wiring & front maintenance, saves installation space and labor
Multi‑channel output distribution (4×30A quick‑plug), flexible load configuration
Complete protection: OVP, OCP, SCP, OTP, LVBD, surge protection (2kV differential / 4kV common mode)
Wide operating temperature –40°C ~ +70°C, strong environmental adaptability
Natural cooling / fanless optional, quiet and reliable
Compliant with CE, telecom and global safety standards
Technical Specifications
| Item | Details |
| Model | ETP48100‑B1 |
| System Type | 1U 19‑inch embedded DC power system |
| AC Input | 110–240VAC, 50–65Hz; single‑phase |
| DC Output | –42V ~ –58VDC adjustable; Nominal –48VDC |
| Max Output Current | 100A |
| Rated Output Power | 3000W |
| Rectifier Module | R4850G / R4850G2 |
| Monitoring Unit | PMU11A |
| Output Distribution | 4×30A quick‑plug outputs |
| Peak Efficiency | >96% |
| Protection | OVP, OCP, SCP, OTP, LVBD, SPD surge |
| Cooling | Natural convection / fanless |
| Maintenance | Full front maintenance & front wiring |
| Dimensions (W×D×H) | 482 × 315 × 44.5 mm |
| Weight | Approx. 4.5 kg |
| Operating Temp | –40°C ~ +70°C |
| Certifications | CE, Telecom Standard |
| Warranty | 12 Months |
| Application | OLT, BBU, RRU, base station, data room |
Applications
Telecom OLT, ONU and fiber optical access equipment
4G / 5G base stations, BBU and RRU equipment
Small cell, indoor coverage and wireless access sites
Data rooms, edge computing and IDC equipment
Industrial control, automation and critical DC power loads
Compact cabinets and space‑limited equipment rooms
Why Choose Us
We are a professional manufacturer and one‑stop solution provider for communication DC power systems, boasting mature R&D strength, large‑scale production capacity and flexible service modes. We fully support OEM and OBM cooperation, helping global partners create differentiated power products and brands.
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Powerful R&D & Customization Ability
We have a professional technical team with years of experience in the power industry. We can provide personalized customized services covering power configuration, external interfaces, functional parameters, appearance design and logo printing, to satisfy diverse demands from telecom operators, system integrators and equipment manufacturers.
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Comprehensive OEM & OBM Services
We offer full‑cycle cooperation support from product design, prototype testing, certification to mass production. With efficient development process and strict quality management, we help you quickly launch products and build exclusive brand advantages.
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Large Production Capacity & On‑time Delivery
We own standardized production workshops and complete production lines. Relying on a stable supply chain and mature production technology, we maintain sufficient inventory and strong production capacity, ensuring on‑time delivery even for bulk orders and long‑term cooperative supply.
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Strict Multi‑level Quality Inspection
All products will pass full‑load operation test, high‑low temperature aging test, safety performance test and simulated on‑site operation test before delivery. We adopt high‑quality original components and implement strict quality control standards to guarantee long‑term stable operation of products in various harsh environments.
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Full Lifecycle Technical & After‑sales Support
We establish a complete service system including pre‑sales consultation, in‑sales technical guidance and after‑sales maintenance. Our technical team responds quickly to provide remote debugging, on‑site technical guidance, equipment maintenance training and spare parts supply, protecting the stable operation of your power system all the time.
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Rich Global Project Experience
Our products have been exported to many countries and regions, widely applied in communication, data center, industrial control, new energy and other fields. With rich global project experience, we can provide targeted power solutions for different regional standards and application scenarios.
We sincerely look forward to establishing long‑term stable cooperative partnership with you.
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