Product Overview
The ETP4890‑A2 is a carrier‑grade 2U 19‑inch rack embedded DC power system designed for telecom access networks, transmission equipment, OLT devices, enterprise communications and compact equipment rooms. It converts wide‑range AC input into stable adjustable –48V DC output, with a maximum output current of 90A and rated power 4800W.
Adopting a compact 2U structure, hot‑swappable modules, front maintenance and intelligent monitoring, this system ensures high efficiency, reliable operation and easy deployment. It supports flexible rectifier configuration and global grid adaptation, making it a universal embedded power solution for modern telecom infrastructure.
Key Features
Standard 19‑inch 2U ultra‑compact design, perfect for narrow cabinets and embedded installation
Wide AC input range 85–300VAC, 45–65Hz, compatible with single‑phase, dual‑live wire and unstable grids
Supports R4830 / R4815 high‑efficiency rectifier modules, max system power 4800W
Rectifier efficiency up to 96%, with module sleep function for further energy saving
Stable adjustable DC output 42–58VDC (default 53.5VDC), max output current 90A
Hot‑swappable modules: plug‑and‑play replacement without system shutdown
Full front maintenance & front wiring, easy installation and later maintenance
Intelligent SMU01A/SMU01B/SMU01C monitoring: LCD, WebUI, SNMP, remote control & fault alarm
Intelligent battery management & protection, effectively extending battery service life
Wide operating temperature –40°C ~ +75°C, strong high‑temperature resistance
Complete protection: OVP, OCP, SCP, OTP, LVBD, surge protection
High power factor ≥0.99, low THD, green and grid‑friendly
Certified with CE, TUV, UL and global telecom safety standards
Technical Specifications
| Item | Details |
| Model | ETP4890‑A2 |
| System Type | 2U 19‑inch embedded DC power system |
| AC Input | 85–300VAC, 45–65Hz; single‑phase / dual‑live wire |
| DC Output | 42–58VDC adjustable; Default 53.5VDC |
| Max Output Current | 90A |
| Rated Output Power | 4800W |
| Matching Rectifiers | R4830G1 / R4830N2 / R4815G1 / R4815N1 |
| Monitoring Unit | SMU01A / SMU01B / SMU01C |
| Peak Efficiency | Up to 96% |
| Power Factor | ≥0.99 |
| Cooling | Intelligent fan cooling |
| Maintenance | Full front maintenance & front wiring |
| Dimensions (W×D×H) | 482.6 × 395 × 88 mm |
| Weight | Approx. 12 kg |
| Operating Temp | –40°C ~ +75°C |
| Storage Temp | –40°C ~ +70°C |
| Humidity | 5%–95% RH (non‑condensing) |
| Certifications | CE, TUV, UL, RoHS |
| Warranty | 12 Months |
| Application | OLT, transmission, access network, equipment room |
Applications
Telecom OLT and fiber optical access equipment
Transmission network & microwave communication systems
4G / 5G base stations and wireless access sites
Enterprise communications & industrial network equipment
Compact equipment rooms & cabinet‑embedded scenarios
Edge computing and critical communication loads
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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