Product Overview
The Vertiv (Former Emerson) NetSure 212 C23‑S1/S2 is compact 1U 19-inch subrack embedded switching DC power system, designed for FTTx OLT equipment, small access cabinets, indoor micro base stations and compact communication equipment rooms. Configurable with max 2pcs R48‑1000A (20A) or R48‑500A rectifier modules to reach total max 40A/2000W output under nominal -48VDC.
With high efficiency rectifier, intelligent monitoring, full front maintenance and integrated distribution breaker design, this lightweight power subrack features small footprint and easy on-site replacement, widely used in global fiber access and compact telecom power renovation projects.
Key Features
Standard 1U 19-inch subrack dimension, compact lightweight structure for narrow cabinet embedded installation
Wide single-phase AC input:90~290VAC,45~65Hz, fits mains and portable generator power supply
Adjustable DC output: -42.3~-57.6VDC, factory default 53.5VDC, max total 40A/2000W
Compatible with R48‑1000A(20A/1000W) / R48‑500A rectifier modules, single rectifier efficiency ≥92%
Hot-swappable rectifier design, replace modules without system power-off, zero site downtime
Full front wiring & front maintenance design, convenient daily inspection and spare replacement
Built-in intelligent monitoring unit, supports RS232 & dry contact remote alarm & parameter setup
Complete battery management: temperature compensation + multi-stage LVD load shedding to extend battery lifespan
Full protection: OVP/OCP/SCP/OTP/anti-surge lightning protection for AC & DC port
High PF≥0.99, low THD, energy-saving and compliant with global telecom grid standard
Wide operating temperature -5℃~+40, storage -40~+70℃, CE & Saber certified
Technical Specifications
| Item | Details |
| Model | NetSure 212 C23‑S1/S2 |
| Brand | Vertiv / Emerson |
| System Size | 1U 19-inch Subrack |
| AC Input | 90~290VAC,45~65Hz Single Phase |
| Nominal DC | -53.5VDC, Adjustable -42.3~-57.6VDC |
| Max Output | 40A / 2000W (2×R48‑1000A) |
| Matching Rectifier | R48‑1000A(1000W/20A), R48‑500A |
| Rectifier Efficiency | ≥92% |
| Power Factor | ≥0.99 |
| Subrack Dimension | 40×482.6×290mm |
| Rectifier Size | 40.8×86.5×241mm |
| Subrack Weight | ≤10kg |
| Single Rectifier Weight | ≤1.2kg |
| Working Temp | -5℃ ~ +40℃ |
| Storage Temp | -40℃ ~ +70℃ |
| Certifications | CE, Saber |
| Warranty | 12 Months |
Applications
FTTx OLT & ONU fiber optical access equipment
4G/5G micro indoor base station & coverage cabinet
Pole-mounted / wall-mounted small telecom street cabinets
Compact enterprise communication & industrial control power loads
Old telecom station power retrofit & capacity upgrade projects


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.
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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 and spare parts supply, protecting your equipment running stably 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.