SSI America ERP2U manual Grounding, Remote Sense, Output Power/Currents, W Load Ratings

Page 18

SSI

 

 

 

ERP2U Power Supply Design Guide, V2.31

 

1

SMBus Clock

White/Green Stripe

 

 

 

 

 

 

2

SMBus Data

White/Yellow Stripe

 

 

 

 

 

3

SMBAlert

 

 

 

 

 

 

 

4

ReturnS

Black/White Stripe

 

 

 

 

 

 

5

3.3RS

Orange/White Stripe

 

 

 

 

 

6.2Grounding

STATUS

Required

The ground of the pins of the power assembly wire harness provides the power return path. The wire harness ground pins shall be connected to safety ground (power supply enclosure).

6.3Remote Sense

STATUS

Optional

The power assembly may have remote sense for the +3.3V (3.3VS) and return (ReturnS) if the Optional Server Signal connector is implemented and the module has a +3.3V output. The remote sense return (ReturnS) is used to regulate out ground drops for all output voltages. The +3.3V remote sense (3.3VS) is used to regulate out drops in the system for the +3.3 V output. The remote sense input impedance to the power sub-assembly must be greater than 200 ohms on 3.3 VS and ReturnS. This is the value of the resistor connecting the remote sense to the output voltage internal to the power assembly. Remote sense must be able to regulate out a minimum of 200 mV drop on the +3.3 V output. The remote sense return (ReturnS) must be able to regulate out a minimum of 200 mV drop in the power ground return. The current in any remote sense line shall be less than 5 mA to prevent voltage sensing errors. The power supply must operate within specification over the full range of voltage drops from the power assembly’s output connector to the remote sense points.

6.4Output Power/Currents

STATUS

Recommended

The following tables define the power and current ratings for different recommended power levels. Depending upon the system design, the power supply modules may have less outputs than required by the system (example: +12V and 5VSB). If there are less outputs than required by the system on the module, the cage shall have additional DC/DC converters to generate the voltages not produced by the modules (example: +12V/+5V, +12V/+3.3V, +12V/-12V). The combined output power of all outputs from the cage shall not exceed the rated output power. The power assembly shall meet both static and dynamic voltage regulation requirements over the full load ranges. The power sub-assembly shall supply redundant power over the full load ranges.

Voltage

+3.3 V 7

+5 V 7

Table 13: 550 W Load Ratings

Minimum Continuous

Maximum Continuous

0.8 A

24 A

0.5 A

24 A

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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 Fast Transient Specification AC Line Surge Transient PerformanceAC Line Surge 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 / Noise Capacitve Loading ConditionsRipple and Noise Redundancy Hot Swap RequirementsTiming Requirements Output Voltage TimingDescription 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 InformationLED Indicators MultiRecord AreaField Name PS Info Field Information Definition LED Indicators Power Supply LEDsMtbf 10Agency Requirements

ERP2U specifications

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In conclusion, SSI America ERP2U presents a powerful and adaptable ERP solution for businesses aiming to enhance efficiency, streamline operations, and gain a competitive edge in the market. With its extensive features, modern technology, and a focus on user experience, ERP2U is an ideal choice for organizations looking to transform their processes and achieve sustained growth.
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