SSI America manual ERP2U Power Supply Design Guide

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SSI

 

 

ERP2U Power Supply Design Guide, V2.31

 

 

 

 

 

 

Revision History

 

 

Orig./Rev.

Description of Changes

 

 

2.0

Post design guide

 

 

 

 

 

2.2

Added higher power levels up to 800W.

 

 

Added 350mm depth.

 

 

 

 

 

 

Removed lower power levels.

 

 

 

Added standby fan operation.

 

 

 

Added option for tighter 12V regulation.

 

 

 

Added 12V4.

 

 

 

Add new SSI efficiency requirements (recommended level & loading conditions).

 

 

 

Reduced holdup time requirements to 75% of max load.

 

 

 

Increase 12V rails for >650W.

 

 

 

Tpwok_on max time reduced to 500msec.

 

 

 

Change 5VSB to 3.0A for >650W.

 

 

 

Added reference to PSMI spec.

 

 

 

Modified SMBus section (FRU and PSMI) to 3.3V with 5V tolerance.

 

 

 

Modified 240VA section; removed common plane, change to <20A for all 12V outputs.

 

 

 

Updated sound power & airflow requirements

 

 

 

Remove reference to split and common rails

 

 

 

Updated efficiency testing method

 

 

2.3

Increase 5V current to 30A and combined 3.3V/5V power to 160W for the 700-800W power levels.

 

 

Increase 12V1/2 current for 550W-650W power levels. Relax require regulation limits. Added

 

 

 

 

 

 

optional regulation limits.

 

 

2.31

Fixed error in 3.3V and 5V loading. Increased 3.3V/5V combined power.

 

 

 

 

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Contents SSI ERP2U Power Supply Design Guide Disclaimer Contents Error! Bookmark not defined TablesFRU Device Product Information Area Purpose Conceptual OverviewDefinitions/Terms/Acronyms RequiredMechanical Overview Required OptionalAcoustic Requirements Temperature RequirementsRecommended Acoustic Sound Power Levels Airflow RequirementsAC Input Requirements AC Inlet ConnectorAC Input Voltage Specification Redundant AC InletsAC Line Dropout Input Under VoltageEfficiency AC Input RatingAC Inrush AC Line Transient SpecificationAC Line Fuse AC Line Sag Transient PerformanceAC Line Surge AC Line Fast Transient SpecificationAC Line Surge Transient Performance Required Baseboard power connector DC Output SpecificationOutput Connectors P1 Baseboard Power ConnectorRequired Floppy Power Connector 2 +12V4 Baseboard Power ConnectorRequired Peripheral Power Connectors Peripheral Power ConnectorsFloppy Power Connector Serial ATA Power ConnectorServer Signal Connector Server Signal ConnectorRemote Sense Output Power/CurrentsGrounding 550 W Load Ratings600 W Load Ratings 650 W Load Ratings700 W Load Ratings 750 W Load RatingsStandby Outputs Fan operation in standby modeVoltage Regulation 800 W Load RatingsVoltage Regulation Limits Dynamic LoadingCapacitive Loading Transient Load RequirementsRipple and Noise Ripple / NoiseCapacitve Loading Conditions Redundancy Hot Swap RequirementsDescription Timing RequirementsOutput Voltage Timing Turn On/Off Timing Recommended DescriptionTurn On/Off Timing 240VA Protection Protection CircuitsCurrent Limit Over Current ProtectionOver Voltage Limits Over Temperature ProtectionOver Voltage Protection Output VoltagePwok delay Control and Indicator FunctionsPson # Signal Characteristic Signal Type PSON#Pwok Signal Characteristics Pwok Power OKPower Supply Management Interface SMBus CommunicationProduct Info Area Field Replacement Unit FRU SignalsModule FRU Data Module FRU Data Format FRU Device InformationField Name PS Info Field Information Definition LED IndicatorsMultiRecord Area LED Indicators Power Supply LEDsMtbf 10Agency Requirements

ERP2U specifications

SSI America ERP2U is an innovative enterprise resource planning solution designed to meet the diverse needs of modern businesses. Tailored for organizations seeking efficiency and scalability, ERP2U streamlines operations and enhances overall productivity. One of its standout features is its modular architecture, allowing businesses to implement only the modules they require, ensuring a customized experience that fits their specific needs.

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