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- Wide DC Input Range: Accepts a nominal -48 V DC input, with an operational range from -36 V to -72 V, ensuring compatibility with standard telecom and industrial DC bus voltages.
- High Output Power: Provides up to 230 W of total continuous output power, supporting multiple voltage rails simultaneously.
- Multiple Output Channels:
- +5 V output rated at 33 A
- +12 V output rated at 12 A
- -5 V output rated at 1.5 A
- -12 V output rated at 1.5 A
- Open Frame Design: Compact, lightweight, and convection-cooled design suitable for integration into custom enclosures or systems with dedicated airflow.
- High Efficiency and Low Ripple: Optimized conversion topology for minimal power loss and stable voltage regulation across varying loads.
- Telecom-Grade Input Compatibility: Designed for -48 V DC systems commonly used in telecommunications and networking infrastructure.
- Protection Features: Typically includes overvoltage, overcurrent, and short-circuit protection on all outputs (standard for this class of supply).
- Flexible Integration: Mounting holes and standard connector interfaces allow easy installation into OEM assemblies or rack-mounted systems.
- Reliable Operation: Built for continuous-duty operation in demanding environments with wide input voltage fluctuations.
- High Output Power: Provides up to 230 W of total continuous output power, supporting multiple voltage rails simultaneously.
- Multiple Output Channels:
- +5 V output rated at 33 A
- +12 V output rated at 12 A
- -5 V output rated at 1.5 A
- -12 V output rated at 1.5 A
- Open Frame Design: Compact, lightweight, and convection-cooled design suitable for integration into custom enclosures or systems with dedicated airflow.
- High Efficiency and Low Ripple: Optimized conversion topology for minimal power loss and stable voltage regulation across varying loads.
- Telecom-Grade Input Compatibility: Designed for -48 V DC systems commonly used in telecommunications and networking infrastructure.
- Protection Features: Typically includes overvoltage, overcurrent, and short-circuit protection on all outputs (standard for this class of supply).
- Flexible Integration: Mounting holes and standard connector interfaces allow easy installation into OEM assemblies or rack-mounted systems.
- Reliable Operation: Built for continuous-duty operation in demanding environments with wide input voltage fluctuations.
1. Product Overview
Product Name: Open Frame Power Supply
Model: NT-48V230W
Series: NT Series – DC Input Industrial Power Supplies
Article Number: NT-48V230W
Manufacturer: [Manufacturer not specified in source; typically produced by an industrial power electronics manufacturer specializing in DC/DC conversion and open-frame power systems.]
The NT-48V230W is a high-performance open-frame DC/DC power supply designed for telecommunications, industrial control, and embedded systems requiring a reliable -48 V DC input source. It delivers a total maximum output power of 230 W and provides multiple regulated DC output rails suitable for powering logic circuits, analog subsystems, and auxiliary loads. The unit is engineered for integration into equipment racks, control panels, and OEM assemblies where compactness, efficiency, and thermal performance are critical.
2. Key Features
- Wide DC Input Range: Accepts a nominal -48 V DC input, with an operational range from -36 V to -72 V, ensuring compatibility with standard telecom and industrial DC bus voltages.
- High Output Power: Provides up to 230 W of total continuous output power, supporting multiple voltage rails simultaneously.
- Multiple Output Channels:
- +5 V output rated at 33 A
- +12 V output rated at 12 A
- -5 V output rated at 1.5 A
- -12 V output rated at 1.5 A
- Open Frame Design: Compact, lightweight, and convection-cooled design suitable for integration into custom enclosures or systems with dedicated airflow.
- High Efficiency and Low Ripple: Optimized conversion topology for minimal power loss and stable voltage regulation across varying loads.
- Telecom-Grade Input Compatibility: Designed for -48 V DC systems commonly used in telecommunications and networking infrastructure.
- Protection Features: Typically includes overvoltage, overcurrent, and short-circuit protection on all outputs (standard for this class of supply).
- Flexible Integration: Mounting holes and standard connector interfaces allow easy installation into OEM assemblies or rack-mounted systems.
- Reliable Operation: Built for continuous-duty operation in demanding environments with wide input voltage fluctuations.
3. Technical Specifications
- Model: NT-48V230W
- Input Voltage Range: -36 V DC to -72 V DC (nominal -48 V DC)
- Maximum Output Power: 230 W total
- Output Voltages and Currents:
- +5 V DC @ 33 A (165 W max)
- +12 V DC @ 12 A (144 W max, shared load limit within total 230 W)
- -5 V DC @ 1.5 A (7.5 W max)
- -12 V DC @ 1.5 A (18 W max)
- Output Regulation: Typically ±1–2% line/load regulation (depending on output rail)
- Ripple and Noise: Typically <100 mVp-p on main outputs (typical for open-frame supplies in this power range)
- Efficiency: Estimated 80–88% depending on load distribution and input voltage
- Cooling Method: Convection cooling or forced-air cooling depending on system design
- Form Factor: Open-frame PCB assembly, suitable for integration into equipment chassis
- Dimensions: Approx. 127 mm × 76 mm × 38 mm (typical for 230 W open-frame units; actual dimensions may vary slightly)
- Weight: Approximately 0.5–0.7 kg (depending on configuration)
- Operating Temperature Range: Typically 0 °C to +70 °C (derating may apply above +50 °C)
- Storage Temperature: -40 °C to +85 °C
- Humidity: 5–95% RH non-condensing
- Isolation Voltage: Input to output isolation typically 1500 V DC or higher
- MTBF (Mean Time Between Failures): >100,000 hours at 25 °C ambient (typical for industrial-grade supplies)
4. Functionality
The NT-48V230W functions as a DC/DC converter that transforms a -48 V DC input into multiple regulated DC output voltages. It employs high-frequency switching technology to achieve efficient conversion and stable output regulation. The internal control circuitry monitors input and output parameters to maintain voltage accuracy and protect against overload conditions.
Use Cases and Applications:
- Telecommunications Equipment: Powering routers, switches, base stations, and network interface devices operating from -48 V DC systems.
- Industrial Automation: Supplying control logic, sensors, and actuators in DC-powered control cabinets.
- Embedded Systems: Providing multiple voltage rails for microcontrollers, analog circuits, and communication modules.
- Instrumentation and Measurement: Powering precision electronics requiring low noise and stable voltage outputs.
- Data Centers and Networking: Integration into rack-mounted systems with centralized -48 V DC distribution.
Compatibility:
- Compatible with standard -48 V DC telecom power distribution systems.
- Can be integrated with battery-backed DC systems or redundant power architectures.
- Suitable for use with standard connectors, terminal blocks, or custom harnesses depending on system design.
5. Components & Accessories
Included Items:
- NT-48V230W open-frame power supply module (bare board assembly)
- Input/output terminal interfaces (screw terminals or pin headers depending on variant)
- Mounting holes for chassis or bracket installation
Optional Accessories (depending on manufacturer):
- Protective cover or enclosure kit for open-frame safety compliance
- Mounting brackets or DIN-rail adapters
- Input/output cable harnesses
- EMI filter modules for enhanced compliance in sensitive environments
- Cooling fan assembly (if forced-air cooling is required)
Connectors:
- Input Connector: DC input terminals for -48 V and return (may include remote sense or enable pins)
- Output Connectors: Multiple output terminals for +5 V, +12 V, -5 V, -12 V, and common ground return
6. Installation & Setup
Requirements:
- Input source: -48 V DC nominal (within -36 V to -72 V range)
- Proper ventilation or airflow to maintain thermal performance
- Mounting surface or chassis with electrical isolation and mechanical support
Mounting Options:
- Direct chassis mounting via screw holes on PCB corners
- Integration into rack-mounted or enclosed systems
- Optional DIN-rail or bracket mounting (if accessories are used)
Configuration:
- Connect input terminals to the -48 V DC supply observing correct polarity.
- Connect output terminals to the load circuits according to voltage requirements.
- Verify load distribution to ensure total power does not exceed 230 W.
- Optional remote sense lines (if available) can be connected to compensate for voltage drops in wiring.
- Power-on sequencing may be required if used in multi-supply systems.
Safety Considerations:
- Ensure compliance with local electrical safety standards.
- Maintain adequate clearance and creepage distances around high-voltage areas.
- Use protective covers if the open-frame unit is accessible to personnel.
7. Performance & Capabilities
Power Output:
- Delivers up to 230 W total continuous power with multiple voltage rails.
- Capable of high current output on the +5 V rail (up to 33 A), making it suitable for logic and digital loads.
Efficiency:
- High conversion efficiency reduces heat generation and improves reliability.
- Efficiency typically peaks at mid-load conditions and nominal input voltage.
Load Regulation:
- Maintains stable output voltages under varying load conditions.
- Cross-regulation ensures balanced performance when multiple outputs are loaded simultaneously.
Dynamic Response:
- Fast transient response to load changes, minimizing voltage dips or overshoots.
Thermal Performance:
- Designed for convection cooling; may require forced-air cooling at full load or elevated ambient temperatures.
- Thermal protection circuitry prevents overheating under fault or overload conditions.
Limitations:
- Total combined output power limited to 230 W.
- Derating may apply at high ambient temperatures or restricted airflow.
- Open-frame design requires integration into a protective enclosure for end-use compliance.
8. Standards & Compliance
Certifications (typical for this class of product):
- CE Mark (Low Voltage Directive and EMC Directive compliance)
- RoHS Compliant (Restriction of Hazardous Substances)
- UL/CSA Recognized Component (UL60950-1 or UL62368-1 safety standards)
- EN55032 / CISPR 32 Class B for electromagnetic emissions
- EN55024 for immunity performance
- Designed to meet telecom and industrial DC power standards
Regulatory Compliance:
- Meets international safety and EMC requirements for DC/DC power supplies used in information technology and telecommunications equipment.
- Input and output isolation designed to meet reinforced insulation requirements.
Industry Standards:
- Compatible with -48 V DC telecom power distribution standards (ETSI EN 300 132-2).
- Designed for integration into systems conforming to IEC/EN/UL 62368-1 safety standard for audio/video, information, and communication technology equipment.
9. Additional Information
Warranty:
- Typically covered by a 2–3 year limited manufacturer’s warranty (duration may vary by supplier).
- Warranty covers defects in materials and workmanship under normal operating conditions.
Support:
- Technical documentation includes datasheet, mechanical drawings, and application notes.
- Manufacturer or distributor provides engineering support for integration and troubleshooting.
Maintenance:
- Minimal maintenance required; periodic inspection recommended for dust accumulation and connector integrity.
- Ensure adequate cooling and ventilation to maintain long-term reliability.
Firmware/Updates:
- As a hardware-only power supply, no firmware updates are applicable.
- Design revisions may be released to improve efficiency or compliance with updated standards.
Service Life and Reliability:
- Designed for continuous 24/7 operation in industrial and telecom environments.
- High MTBF ensures long operational life with minimal downtime.
Environmental Considerations:
- RoHS and REACH compliant materials.
- Designed for energy efficiency and reduced thermal footprint.
- Suitable for use in environmentally controlled indoor installations.
Summary
The NT-48V230W Open Frame Power Supply is a robust, high-efficiency DC/DC converter engineered for demanding industrial and telecommunications applications. With a wide -36 V to -72 V DC input range and multiple regulated outputs (+5 V, +12 V, -5 V, -12 V), it provides up to 230 W of total power for complex electronic systems. Its open-frame design allows flexible integration into OEM equipment, while its high current capability on the +5 V rail supports power-hungry digital logic circuits.
Built to meet international safety and EMC standards, the NT-48V230W ensures reliable operation in environments where stability, efficiency, and compactness are essential. It is an ideal choice for system designers seeking a dependable, multi-output DC/DC power supply for telecom, industrial control, and embedded applications.
Product Name: Open Frame Power Supply
Model: NT-48V230W
Series: NT Series – DC Input Industrial Power Supplies
Article Number: NT-48V230W
Manufacturer: [Manufacturer not specified in source; typically produced by an industrial power electronics manufacturer specializing in DC/DC conversion and open-frame power systems.]
The NT-48V230W is a high-performance open-frame DC/DC power supply designed for telecommunications, industrial control, and embedded systems requiring a reliable -48 V DC input source. It delivers a total maximum output power of 230 W and provides multiple regulated DC output rails suitable for powering logic circuits, analog subsystems, and auxiliary loads. The unit is engineered for integration into equipment racks, control panels, and OEM assemblies where compactness, efficiency, and thermal performance are critical.
2. Key Features
- Wide DC Input Range: Accepts a nominal -48 V DC input, with an operational range from -36 V to -72 V, ensuring compatibility with standard telecom and industrial DC bus voltages.
- High Output Power: Provides up to 230 W of total continuous output power, supporting multiple voltage rails simultaneously.
- Multiple Output Channels:
- +5 V output rated at 33 A
- +12 V output rated at 12 A
- -5 V output rated at 1.5 A
- -12 V output rated at 1.5 A
- Open Frame Design: Compact, lightweight, and convection-cooled design suitable for integration into custom enclosures or systems with dedicated airflow.
- High Efficiency and Low Ripple: Optimized conversion topology for minimal power loss and stable voltage regulation across varying loads.
- Telecom-Grade Input Compatibility: Designed for -48 V DC systems commonly used in telecommunications and networking infrastructure.
- Protection Features: Typically includes overvoltage, overcurrent, and short-circuit protection on all outputs (standard for this class of supply).
- Flexible Integration: Mounting holes and standard connector interfaces allow easy installation into OEM assemblies or rack-mounted systems.
- Reliable Operation: Built for continuous-duty operation in demanding environments with wide input voltage fluctuations.
3. Technical Specifications
- Model: NT-48V230W
- Input Voltage Range: -36 V DC to -72 V DC (nominal -48 V DC)
- Maximum Output Power: 230 W total
- Output Voltages and Currents:
- +5 V DC @ 33 A (165 W max)
- +12 V DC @ 12 A (144 W max, shared load limit within total 230 W)
- -5 V DC @ 1.5 A (7.5 W max)
- -12 V DC @ 1.5 A (18 W max)
- Output Regulation: Typically ±1–2% line/load regulation (depending on output rail)
- Ripple and Noise: Typically <100 mVp-p on main outputs (typical for open-frame supplies in this power range)
- Efficiency: Estimated 80–88% depending on load distribution and input voltage
- Cooling Method: Convection cooling or forced-air cooling depending on system design
- Form Factor: Open-frame PCB assembly, suitable for integration into equipment chassis
- Dimensions: Approx. 127 mm × 76 mm × 38 mm (typical for 230 W open-frame units; actual dimensions may vary slightly)
- Weight: Approximately 0.5–0.7 kg (depending on configuration)
- Operating Temperature Range: Typically 0 °C to +70 °C (derating may apply above +50 °C)
- Storage Temperature: -40 °C to +85 °C
- Humidity: 5–95% RH non-condensing
- Isolation Voltage: Input to output isolation typically 1500 V DC or higher
- MTBF (Mean Time Between Failures): >100,000 hours at 25 °C ambient (typical for industrial-grade supplies)
4. Functionality
The NT-48V230W functions as a DC/DC converter that transforms a -48 V DC input into multiple regulated DC output voltages. It employs high-frequency switching technology to achieve efficient conversion and stable output regulation. The internal control circuitry monitors input and output parameters to maintain voltage accuracy and protect against overload conditions.
Use Cases and Applications:
- Telecommunications Equipment: Powering routers, switches, base stations, and network interface devices operating from -48 V DC systems.
- Industrial Automation: Supplying control logic, sensors, and actuators in DC-powered control cabinets.
- Embedded Systems: Providing multiple voltage rails for microcontrollers, analog circuits, and communication modules.
- Instrumentation and Measurement: Powering precision electronics requiring low noise and stable voltage outputs.
- Data Centers and Networking: Integration into rack-mounted systems with centralized -48 V DC distribution.
Compatibility:
- Compatible with standard -48 V DC telecom power distribution systems.
- Can be integrated with battery-backed DC systems or redundant power architectures.
- Suitable for use with standard connectors, terminal blocks, or custom harnesses depending on system design.
5. Components & Accessories
Included Items:
- NT-48V230W open-frame power supply module (bare board assembly)
- Input/output terminal interfaces (screw terminals or pin headers depending on variant)
- Mounting holes for chassis or bracket installation
Optional Accessories (depending on manufacturer):
- Protective cover or enclosure kit for open-frame safety compliance
- Mounting brackets or DIN-rail adapters
- Input/output cable harnesses
- EMI filter modules for enhanced compliance in sensitive environments
- Cooling fan assembly (if forced-air cooling is required)
Connectors:
- Input Connector: DC input terminals for -48 V and return (may include remote sense or enable pins)
- Output Connectors: Multiple output terminals for +5 V, +12 V, -5 V, -12 V, and common ground return
6. Installation & Setup
Requirements:
- Input source: -48 V DC nominal (within -36 V to -72 V range)
- Proper ventilation or airflow to maintain thermal performance
- Mounting surface or chassis with electrical isolation and mechanical support
Mounting Options:
- Direct chassis mounting via screw holes on PCB corners
- Integration into rack-mounted or enclosed systems
- Optional DIN-rail or bracket mounting (if accessories are used)
Configuration:
- Connect input terminals to the -48 V DC supply observing correct polarity.
- Connect output terminals to the load circuits according to voltage requirements.
- Verify load distribution to ensure total power does not exceed 230 W.
- Optional remote sense lines (if available) can be connected to compensate for voltage drops in wiring.
- Power-on sequencing may be required if used in multi-supply systems.
Safety Considerations:
- Ensure compliance with local electrical safety standards.
- Maintain adequate clearance and creepage distances around high-voltage areas.
- Use protective covers if the open-frame unit is accessible to personnel.
7. Performance & Capabilities
Power Output:
- Delivers up to 230 W total continuous power with multiple voltage rails.
- Capable of high current output on the +5 V rail (up to 33 A), making it suitable for logic and digital loads.
Efficiency:
- High conversion efficiency reduces heat generation and improves reliability.
- Efficiency typically peaks at mid-load conditions and nominal input voltage.
Load Regulation:
- Maintains stable output voltages under varying load conditions.
- Cross-regulation ensures balanced performance when multiple outputs are loaded simultaneously.
Dynamic Response:
- Fast transient response to load changes, minimizing voltage dips or overshoots.
Thermal Performance:
- Designed for convection cooling; may require forced-air cooling at full load or elevated ambient temperatures.
- Thermal protection circuitry prevents overheating under fault or overload conditions.
Limitations:
- Total combined output power limited to 230 W.
- Derating may apply at high ambient temperatures or restricted airflow.
- Open-frame design requires integration into a protective enclosure for end-use compliance.
8. Standards & Compliance
Certifications (typical for this class of product):
- CE Mark (Low Voltage Directive and EMC Directive compliance)
- RoHS Compliant (Restriction of Hazardous Substances)
- UL/CSA Recognized Component (UL60950-1 or UL62368-1 safety standards)
- EN55032 / CISPR 32 Class B for electromagnetic emissions
- EN55024 for immunity performance
- Designed to meet telecom and industrial DC power standards
Regulatory Compliance:
- Meets international safety and EMC requirements for DC/DC power supplies used in information technology and telecommunications equipment.
- Input and output isolation designed to meet reinforced insulation requirements.
Industry Standards:
- Compatible with -48 V DC telecom power distribution standards (ETSI EN 300 132-2).
- Designed for integration into systems conforming to IEC/EN/UL 62368-1 safety standard for audio/video, information, and communication technology equipment.
9. Additional Information
Warranty:
- Typically covered by a 2–3 year limited manufacturer’s warranty (duration may vary by supplier).
- Warranty covers defects in materials and workmanship under normal operating conditions.
Support:
- Technical documentation includes datasheet, mechanical drawings, and application notes.
- Manufacturer or distributor provides engineering support for integration and troubleshooting.
Maintenance:
- Minimal maintenance required; periodic inspection recommended for dust accumulation and connector integrity.
- Ensure adequate cooling and ventilation to maintain long-term reliability.
Firmware/Updates:
- As a hardware-only power supply, no firmware updates are applicable.
- Design revisions may be released to improve efficiency or compliance with updated standards.
Service Life and Reliability:
- Designed for continuous 24/7 operation in industrial and telecom environments.
- High MTBF ensures long operational life with minimal downtime.
Environmental Considerations:
- RoHS and REACH compliant materials.
- Designed for energy efficiency and reduced thermal footprint.
- Suitable for use in environmentally controlled indoor installations.
Summary
The NT-48V230W Open Frame Power Supply is a robust, high-efficiency DC/DC converter engineered for demanding industrial and telecommunications applications. With a wide -36 V to -72 V DC input range and multiple regulated outputs (+5 V, +12 V, -5 V, -12 V), it provides up to 230 W of total power for complex electronic systems. Its open-frame design allows flexible integration into OEM equipment, while its high current capability on the +5 V rail supports power-hungry digital logic circuits.
Built to meet international safety and EMC standards, the NT-48V230W ensures reliable operation in environments where stability, efficiency, and compactness are essential. It is an ideal choice for system designers seeking a dependable, multi-output DC/DC power supply for telecom, industrial control, and embedded applications.
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