OSN500 21E75 S1.1 DC Huawei Brand New OptiX Power Supply

OSN500 21E75 S1.1 DC Huawei Brand New OptiX Power Supply

The OSN500 21E75 S1.1 DC is a high-reliability DC power supply module designed for Huawei’s OptiX OSN500 series transmission platforms. Engineered for use in compact, high-performance telecom networks, this unit delivers stable -48V DC input power to ensure uninterrupted service of SDH/OTN transmission equipment. With robust protection features and Huawei OEM build quality, the 21E75 S1.1 is ideal for mission-critical deployments across access, edge, and industrial networks.

Key Features

• Model: OSN500 21E75 S1.1

• Condition: Brand New, Original Huawei OEM

• Input Voltage: -48V DC (Range: -38.4V to -72V)

• Output Function: Internal power distribution for OSN500 boards

• System Compatibility: Fully compatible with Huawei OSN500 transmission units

• Hot-Swappable Design: Enables replacement without system shutdown

• Protection Mechanisms: Overvoltage, overcurrent, thermal protection, and short-circuit isolation

• Compact Form Factor: Suitable for rack-mount and limited-space environments

Technical Specifications

OSN500 21E75 S1.1 DC Applications

• Telecom Access Nodes – Delivers reliable DC power for access-layer networks

• Edge Network Equipment – Powers SDH/OTN units in remote and space-constrained sites

• Industrial & Energy Networks – Operates in demanding utility environments

• Government & Transport Projects – Trusted for public safety, rail, and smart infrastructure

• Private Networks & ISPs – Ideal for broadband backhaul and enterprise-grade access

Customization & OEM Services

• Private Branding – Custom logos and labeling available for telecom partners

• Wiring Kits – Tailored DC cabling and connection solutions available

• Pre-Tested Configurations – Alarms and parameters preset to customer requirements

• Chassis Bundling – Combine with OSN500 boards and housing units for full kits

• Project-Specific QA – Extended testing and certification for government or utility projects

Wholesale & Global Procurement

• Huawei Original Equipment – Factory-new with complete serial traceability

• Bulk Stock Availability – Suitable for volume procurement and deployment

• Secure International Packaging – ESD-safe and shockproof export packaging

• Fast Global Shipping – Timely delivery for urgent rollout schedules

• Complete Documentation – Includes datasheets, install guides, and power interface specs

Why Choose OSN500 21E75 S1.1 DC Power Module

• Reliable -48V Input Performance – Built for mission-critical network uptime

• Efficient, Compact & Scalable – Perfect for space-sensitive access networks

• Huawei Quality & Longevity – Designed for continuous telecom operation

• Seamless OSN Integration – Native fit for Huawei management and SDH/OTN platforms

• Proven Global Use Case – Deployed worldwide in diverse infrastructure projects

Contact Us

Power your next-gen transport network with the Huawei OSN500 21E75 S1.1 DC Power Supply — a trusted and efficient module for telecom and enterprise-grade systems.

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