Product Overview
The Vertiv (formerly Emerson) NetSure 211 C23‑S1 is a highly reliable, fully digital 1U 19‑inch embedded DC power system designed for 4G/5G access networks, FTTx, OLT equipment, transmission nodes and small communication cabinets. It converts wide‑range AC input into stable adjustable –48V DC output with a maximum output current of 40A, delivering stable power for critical small‑to‑medium communication equipment.
With an ultra‑compact 1U structure, full front operation, hot‑swappable modules and intelligent battery management, this system ensures high efficiency, easy maintenance and long‑term stable operation. It is the ideal compact embedded power solution for space‑constrained telecom sites and equipment rooms.
Key Features
Standard 19‑inch 1U ultra‑compact design, small footprint, lightweight, saves cabinet space significantly
Wide AC input range 90–290VAC, 45–65Hz, strong adaptability to unstable grids and generator power
Stable adjustable DC output –42.3V ~ –57.6VDC, nominal –53.5VDC, max output current 40A
High efficiency ≥90%, power factor ≥0.99, low energy consumption and operation cost
Hot‑swappable rectifier modules, damage‑free replacement, supports online maintenance in <1 minute
Full front operation & maintenance, convenient installation and daily upkeep
Comprehensive lightning & surge protection on AC, DC and signal ports
Advanced battery management: BLVD, temperature compensation, capacity calculation, online test, prolong battery life
Multiple communication interfaces: RS232, dry contact, supporting remote monitoring & unattended operation
Wide operating temperature –33°C ~ +55°C, strong environmental adaptability
Certified with CE, UL, NEBS, RoHS and global telecom safety standards
Technical Specifications
| Item | Details |
| Brand | Vertiv / Emerson |
| Model | NetSure 211 C23‑S1 |
| System Type | 19‑inch 1U embedded DC power system |
| AC Input | 90–290VAC, 45–65Hz; single‑phase |
| DC Output | –42.3V ~ –57.6VDC; Nominal –53.5VDC |
| Max Output Current | 40A |
| Peak Efficiency | ≥90% |
| Power Factor | ≥0.99 |
| Cooling | Built‑in fan, forced convection |
| Maintenance | Full front maintenance & front wiring |
| Dimensions (W×D×H) | 483 × 290 × 44 mm |
| Weight | ≤10 kg (without modules) |
| Operating Temp | –33°C ~ +55°C |
| Storage Temp | –40°C ~ +70°C |
| Humidity | 5%–95% RH (non‑condensing) |
| Altitude | ≤3000 m |
| Certifications | CE, UL, NEBS, RoHS, YD/T983 |
| Warranty | 12 Months |
| Application | OLT, access network, small cabinet, FTTx |
Applications
Telecom OLT & FTTx fiber access equipment
4G / 5G small base stations & indoor coverage sites
Transmission network & microwave communication equipment
Street cabinets & pole‑mounted communication devices
Industrial control & compact DC power loads
Space‑limited equipment rooms & embedded installation scenarios
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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