Comprehensive Product Summary: cPS‑H325AC CompactPCI® Power Supply Module

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### 1. Product Overview

Product Name: cPS‑H325AC
Model: cPS‑H325/AC
Series: cPS‑H325 Series (includes cPS‑H325/AC and cPS‑H325/48 variants)
Article Number: cPS‑H325AC
Manufacturer: ADLINK Technology, Inc.
Product Type: CompactPCI® 3U Hot‑Swap Redundant Power Supply Module
Power Rating: 250 W continuous output
Input Type: Universal AC input (90–264 VAC, 47–63 Hz)
Connector Type: Standard PICMG® 2.11 47‑pin CompactPCI® power interface

The ADLINK cPS‑H325AC is a high‑reliability, 3U CompactPCI® power supply module designed for industrial and embedded computing systems requiring redundant, hot‑swappable power solutions. It complies with the PICMG® 2.11 CompactPCI® Power Interface specification and provides a robust 250‑watt output with active power factor correction (PFC), internal OR‑ing diodes for N+1 redundancy, and comprehensive protection features. The module is optimized for high‑availability systems, offering stable DC outputs, remote monitoring, and fault signaling capabilities.

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### 2. Key Features

- PICMG® 2.11 Compliance: Fully compliant with the CompactPCI® Power Interface standard, ensuring interoperability with standard CompactPCI® backplanes and chassis.
- 3U 8HP Form Factor: Compact 3U height (100 × 160 mm) and 8HP width (two slots), suitable for high‑density rackmount systems.
- Universal AC Input: Accepts 90–264 VAC input voltage range at 47–63 Hz, supporting global operation without manual voltage selection.
- Active Power Factor Correction (PFC): Achieves a typical power factor of 0.95–0.97, meeting IEC1000‑3‑2 harmonic correction standards for improved efficiency and reduced input current distortion.
- Hot‑Swappable Design: Enables replacement or maintenance without system shutdown, supporting continuous system uptime.
- N+1 Redundancy: Internal OR‑ing diodes allow multiple units to operate in parallel for fault‑tolerant power configurations.
- Active Current Sharing: Balances load current among parallel modules to enhance reliability and extend service life.
- Comprehensive Protection: Includes over‑temperature, over‑current, over‑load, and over‑voltage protection on all output rails.
- Status Indicators: Dual LED indicators—green for power status and amber for fault indication—provide immediate visual feedback.
- Remote Control & Monitoring: Supports remote ON/OFF control, power failure (FAL#), and degradation (DEG#) signals for system management integration.
- High Efficiency: Typical conversion efficiency of 78–79%, minimizing heat generation and power loss.
- Low Ripple & Noise: 50 mV ripple on 5 V and 3.3 V outputs; 120 mV on ±12 V outputs, ensuring clean power for sensitive electronics.
- Environmental Robustness: Operates from ‑40 °C to +70 °C with appropriate airflow, suitable for harsh industrial environments.
- EMI/EMC Compliance: Meets EN 55022 and FCC Class A emission standards.

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### 3. Technical Specifications

Form Factor: 3U CompactPCI® (100 × 160 mm), 8HP (two‑slot) width
Power Output: 250 W continuous
Input Voltage Range: 90–264 VAC ±10%
Input Frequency: 47–63 Hz ±5%
Input Current: 2.8 A @ 115 VAC / 1.4 A @ 230 VAC
Inrush Current: <30 A @ 230 VAC
Power Factor: 0.95–0.97 (typical, active PFC)
Efficiency: 78–79% (typical)

DC Output Ratings:
| Output Rail | Typical Current | Maximum Current | Minimum Load | Ripple (mV) |
|--------------|----------------|----------------|---------------|--------------|
| +5 V | 25.0 A | 33.0 A | 0.5 A | 50 mV |
| +3.3 V | 18.0 A | 33.0 A | 0.5 A | 50 mV |
| +12 V | 5.0 A | 6.0 A | 0.5 A | 120 mV |
| −12 V | 0.5 A | 1.5 A | 0.5 A | 120 mV |

Total Output Power: 250 W continuous (individual rail maximums not simultaneously achievable)
Line Regulation: Typical 0.1%
Load Regulation: ±1–2% typical
Hold‑Up Time: 5 ms after power fail signal
Output Voltage Sense: Available for +5 V, +3.3 V, and +12 V rails
Redundancy: Internal OR‑ing diodes for N+1 operation
Remote ON/OFF Control: Supported via INH# and EN# pins
Power Failure Signal: Available at FAL# pin
Power Degradation Signal: Available at DEG# pin

Protections:
- Over‑Temperature Protection (OTP): Triggered at +70 °C
- Over‑Current Protection (OCP): Installed on each output rail
- Over‑Load Protection (OLP): 120% of rated load, auto‑recoverable
- Over‑Voltage Protection (OVP): Built‑in for all outputs

Status Indicators:
- Green LED: Valid input voltage (POWER)
- Amber LED: Critical fault (FAULT)

Earth Leakage Current: <0.5 mA @ 230 VAC

Environmental Conditions:
- Operating Temperature: ‑40 °C to +70 °C (full load with ≥600 LFM airflow)
- Derating: Linearly to 60% output at +70 °C
- Warm‑Up Time: 3 minutes required after cold start (‑40 °C to 0 °C)
- Storage Temperature: ‑45 °C to +85 °C
- Relative Humidity: 5%–95% non‑condensing
- Shock Resistance: 15 G peak‑to‑peak, 11 ms duration (non‑operational)
- Vibration Resistance: 1.88 Grms, 5–500 Hz, each axis (operational)
- Cooling Requirement: Minimum 20 CFM airflow for full power operation

Certifications: IEC950, EN 55022, FCC Class A, IEC60950 Class I

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### 4. Functionality

The cPS‑H325AC functions as a modular, hot‑swappable power supply unit for CompactPCI® systems. It converts universal AC mains input (90–264 VAC) into regulated DC outputs distributed through the standard 47‑pin CompactPCI® power connector. The module supports multiple voltage rails (+5 V, +3.3 V, ±12 V) to power system backplanes, peripheral cards, and control electronics.

Operational Principles:
- Power Conversion: The internal switching circuitry rectifies and regulates AC input into stable DC outputs with low ripple.
- Active PFC: Ensures efficient energy conversion and compliance with harmonic distortion standards.
- Redundancy & Hot‑Swap: Multiple units can be installed in parallel for N+1 redundancy. Faulty modules can be replaced without interrupting system operation.
- Monitoring & Control: Remote ON/OFF, power fail, and degradation signals allow integration with system management controllers for predictive maintenance and fault isolation.
- Protection Mechanisms: Automatic shutdown or current limiting protects both the power supply and connected loads from abnormal conditions.

Typical Applications:
- Industrial automation controllers
- Telecommunications and networking systems
- Embedded computing platforms
- Military and aerospace CompactPCI® systems
- Data acquisition and control systems requiring high availability

Compatibility:
- Fully compatible with PICMG® 2.11 CompactPCI® backplanes
- Designed for 3U CompactPCI® chassis with 47‑pin power interface
- Supports integration with redundant power configurations and system management modules

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### 5. Components & Accessories

Included Components:
- cPS‑H325AC power supply module (3U, 8HP)
- Integrated 47‑pin CompactPCI® power connector
- Built‑in cooling vents and internal fanless design (requires external airflow)
- Status LEDs (POWER and FAULT indicators)

Optional Accessories:
- Redundant power supply cage or backplane slot for N+1 configuration
- AC input cable assemblies (depending on chassis design)
- Monitoring harness for remote ON/OFF and signal pins (INH#, EN#, FAL#, DEG#)
- Mounting screws or retention clips (chassis‑specific)

Connectors:
- 47‑Pin CompactPCI® Power Connector: Provides AC input and DC output interface per PICMG® 2.11 standard.
- Signal Pins: Support remote control and monitoring functions.

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### 6. Installation & Setup

Requirements:
- Compatible CompactPCI® chassis with 3U slots and 47‑pin power interface
- Adequate airflow (≥20 CFM) for full‑load operation
- AC mains supply within 90–264 VAC range

Mounting Options:
- Front‑insertable module with ejector handles for tool‑less installation
- Occupies two CompactPCI® slots (8HP width)
- Secured via standard CompactPCI® retention mechanisms

Configuration Steps:
1. Ensure system power is off or redundant power is active.
2. Insert the cPS‑H325AC module into the designated power slot until the connector engages.
3. Verify LED indicators: green (POWER) should illuminate upon valid input.
4. Connect remote control and monitoring lines if required.
5. Confirm airflow meets minimum cooling requirements.
6. For redundant configurations, ensure current sharing and OR‑ing diodes are properly engaged.

Hot‑Swap Procedure:
- The module supports live insertion and removal under load when used in redundant systems.
- The internal OR‑ing diodes isolate the module during insertion/removal to prevent power disruption.

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### 7. Performance & Capabilities

Power Output: 250 W continuous total output
Voltage Regulation: ±1–2% load regulation, 0.1% line regulation
Ripple & Noise: 50–120 mV depending on output rail
Hold‑Up Time: 5 ms after power fail signal
Efficiency: 78–79% typical
Power Factor: 0.95–0.97 (active PFC)
Redundancy: N+1 capable with internal OR‑ing diodes
Hot‑Swap Capability: Fully supported per PICMG® 2.11
Thermal Performance: Operates at full load up to +70 °C with airflow; derates linearly beyond 60 °C
Reliability: Designed for continuous 24/7 operation in mission‑critical environments
Limitations:
- Maximum rated current per rail cannot be drawn simultaneously across all outputs.
- Requires adequate airflow for full‑load operation.
- Derating applies at high ambient temperatures.

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### 8. Standards & Compliance

Industry Standards:
- PICMG® 2.11: CompactPCI® Power Interface compliance ensures mechanical and electrical compatibility with standard CompactPCI® systems.
- IEC1000‑3‑2: Harmonic current emission compliance via active PFC.
- EN 55022 / FCC Class A: Electromagnetic interference (EMI) compliance for industrial environments.
- IEC950 / IEC60950 Class I: Safety compliance for information technology equipment.

Regulatory Compliance:
- Meets international safety and EMC requirements for industrial and computing applications.
- Designed for use in systems requiring CE and FCC conformity.

Environmental Compliance:
- Operates within wide temperature and humidity ranges.
- Low earth leakage current (<0.5 mA) ensures safety in grounded systems.

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### 9. Additional Information

Warranty: Standard manufacturer warranty (typically one year, per ADLINK policy).
Support:
- Technical documentation and datasheets available from ADLINK Technology.
- Firmware and configuration support via ADLINK customer service.
- Field‑replaceable unit (FRU) design simplifies maintenance.

Maintenance:
- Periodic inspection of airflow and connector integrity recommended.
- Ensure dust‑free environment for optimal thermal performance.
- Replace modules in redundant systems as needed without downtime.

Updates & Revisions:
- Specifications subject to change without notice (latest revision: March 10, 2017).
- Updated product information available at [www.adlinktech.com](http://www.adlinktech.com).

Ordering Information:
- cPS‑H325/AC: 250 W 3U CompactPCI® power module with universal AC input (90–264 VAC).
- cPS‑H325/48: 250 W 3U CompactPCI® power module with 36–72 VDC input (DC variant).

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### Summary

The ADLINK cPS‑H325AC is a robust, high‑efficiency, 250‑watt CompactPCI® power supply module engineered for mission‑critical embedded and industrial systems. Its compliance with PICMG® 2.11, active PFC, N+1 redundancy, and hot‑swap capability make it ideal for high‑availability applications. With wide input voltage support, comprehensive protection features, and reliable performance across extreme environmental conditions, the cPS‑H325AC delivers dependable power for CompactPCI® platforms requiring continuous operation and minimal downtime.

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