Metadata Specs#

Property definitions used by aif-pipeline metadata to generate USD attribute layers. Common properties apply to all equipment types. Equipment-specific properties extend the common set for each type. All numeric values use SI units (meters, kilograms, Kelvin, and watts) unless otherwise noted in the property description. Refer to Metadata for the full workflow.

Properties shared by all equipment types (aif:core: namespace).

Property

Namespace

Type

Description

Manufacturer

aif:core:manufacturer

string

Equipment manufacturer name

Model Number

aif:core:modelNumber

string

Equipment model number

Overall Geometry Dimensions

aif:core:overallGeometryDimensions

float3

Overall geometry (W x D x H) in mm

Weight

aif:core:weight

float

Equipment weight in kilograms

Height

aif:core:height

float

Equipment height in mm

Width

aif:core:width

float

Equipment width in mm

Depth

aif:core:depth

float

Equipment depth in mm

Installation Clearance

aif:core:installationClearance

float

Installation clearance in mm

Accessibility Requirement

aif:core:accessibilityRequirement

float

Service clearance in mm

Asset Version

aif:core:assetVersion

string

Design revision of digital twin asset

Asset Class

aif:core:assetClass

string

Class of AI Factory equipment

SimReady Version

aif:core:simreadyVersion

string

SimReady version

Scene Optimizer Version

aif:core:sceneOptimizerVersion

string

Scene Optimizer version

Asset Validator Version

aif:core:assetValidatorVersion

string

Asset Validator version

Asset Description

aif:core:assetDescription

string

Human-readable description of asset

Connects To Model Documentation

aif:core:connectsToModelDocumentation

string

URL to online documentation

Asset Creation Date

aif:core:assetCreationDate

string

Creation date (ISO 8601: YYYY-MM-DD)

Coolant Distribution Unit properties (aif:spec: namespace). Applied in addition to Common properties.

Property

Namespace

Type

Description

Cooling Type

aif:spec:coolingType

string

Primary cooling type (Water/Glycol)

Mount Style

aif:spec:mountStyle

string

Mount style (In Row, In Rack)

Cooling Capacity Curve

aif:spec:coolingCapacityCurve

float2_array

Flow rate compared to cooling capacity (five points)

Reference Facility Coolant Temperature

aif:spec:referenceFacilityCoolantTemperature

float

Reference facility coolant temperature in Kelvin

Reference Technology Coolant Flow Rate

aif:spec:referenceTechnologyCoolantFlowRate

float

Reference technology coolant flow rate in LPM

Reference Secondary Coolant Temperature

aif:spec:referenceSecondaryCoolantTemperature

float

Reference secondary coolant temperature in Kelvin

Total Heat Dissipated

aif:spec:totalHeatDissipated

float

Total heat dissipated (kW)

Filter Size Cooling Capacity

aif:spec:filterSizeCoolingCapacity

float

Filter size for cooling capacity

Pump Redundancy Strategy Cooling Capacity

aif:spec:pumpRedundancyStrategyCoolingCapacity

float

Pump redundancy strategy for cooling capacity

Working Fluid Cooling Capacity

aif:spec:workingFluidCoolingCapacity

float

Working fluid for cooling capacity

Nominal Cooling Capacity

aif:spec:nominalCoolingCapacity

float

Nominal cooling capacity

Maximum Cooling Capacity

aif:spec:maximumCoolingCapacity

float

Maximum cooling capacity

Nominal Flow

aif:spec:nominalFlow

float

Nominal flow (two pumps running) in cubic meter/second

Maximum Flow

aif:spec:maximumFlow

float

Maximum flow (three pumps running) in cubic meter/second

Pump Flow Curve

aif:spec:pumpFlowCurve

float2_array

Pump flow curve: CMS compared to KPa (five points)

Max Speed

aif:spec:maxSpeed

float

Max speed (Hz)

Rated Speed

aif:spec:ratedSpeed

float

Rated speed (Hz)

Number of Pumps

aif:spec:numberOfPumps

int

Number of pumps

Maximum Power Consumption 2X Pumps

aif:spec:maximumPowerConsumption2XPumps

float

Max power consumption (two pumps) at maximum flow

Maximum Power Consumption 3X Pumps

aif:spec:maximumPowerConsumption3XPumps

float

Max power consumption (three pumps) at maximum flow

Filter Size Pumps

aif:spec:filterSizePumps

string

Filter size for pumps

Pump Redundancy Strategy Pumps

aif:spec:pumpRedundancyStrategyPumps

string

Pump redundancy strategy for pumps

Working Fluid Pumps

aif:spec:workingFluidPumps

string

Working fluid for pumps

Wetted Material TCS

aif:spec:wettedMaterialTcs

string

Wetted material list for TCS

Wetted Material FWS

aif:spec:wettedMaterialFws

string

Wetted material list for FWS

Communication 1

aif:spec:communication1

float

Communication 1

Communication 2

aif:spec:communication2

float

Communication 2

Nominal Voltage

aif:spec:nominalVoltage

float

Electrical nominal voltage (V)

Current

aif:spec:current

float

Electrical current

Frequency

aif:spec:frequency

float

Electrical frequency

Power Rating

aif:spec:powerRating

float

Electrical power rating (kW)

Power Factor

aif:spec:powerFactor

float

Electrical power factor

Efficiency

aif:spec:efficiency

float

Electrical efficiency

Wiring Method

aif:spec:wiringMethod

string

Wiring method

FWS Supply Piping Connection

aif:spec:fwsSupplyPipingConnection

float

FWS supply piping connection in mm

FWS Return Piping Connection

aif:spec:fwsReturnPipingConnection

float

FWS return piping connection in mm

TCS Supply Piping Connection

aif:spec:tcsSupplyPipingConnection

float

TCS supply piping connection in mm

TCS Return Piping Connection

aif:spec:tcsReturnPipingConnection

float

TCS return piping connection in mm

Primary Filtration

aif:spec:primaryFiltration

string

Primary filtration (external with bypass)

Primary Circuit Volume

aif:spec:primaryCircuitVolume

float

Primary circuit volume in liters

Secondary Filtration

aif:spec:secondaryFiltration

string

Secondary filtration (external with bypass)

Secondary Circuit Volume

aif:spec:secondaryCircuitVolume

float

Secondary circuit volume in liters

Rated Voltage Incoming Power

aif:spec:ratedVoltageIncomingPower

float

Rated voltage incoming power

Rated Cable Size

aif:spec:ratedCableSize

string

Rated cable size

Rated Max Power

aif:spec:ratedMaxPower

float

Rated max power

Incoming Power Feeds

aif:spec:incomingPowerFeeds

float

Incoming power feeds

Redundancy Scheme

aif:spec:redundancyScheme

string

Redundancy scheme

Power Transfer Device

aif:spec:powerTransferDevice

float

Power transfer device

Power Transfer Design

aif:spec:powerTransferDesign

float

Power transfer design

Breaker

aif:spec:breaker

string

Breaker

Fuse

aif:spec:fuse

string

Fuse

Disconnect

aif:spec:disconnect

string

Disconnect

Motor Size

aif:spec:motorSize

string

Motor/pump size

Motor Power Info

aif:spec:motorPowerInfo

float

Motor/pump power info

Rated Voltage Rotating Equipment

aif:spec:ratedVoltageRotatingEquipment

float

Rated voltage rotating equipment

Rated HP

aif:spec:ratedHp

string

Rated HP

Power Factor Rotating Equipment

aif:spec:powerFactorRotatingEquipment

float

Power factor rotating equipment

Efficiency Rotating Equipment

aif:spec:efficiencyRotatingEquipment

float

Efficiency of rotating equipment

Auxiliary Power Source and Connections

aif:spec:auxiliaryPowerSourceAndConnections

float

Auxiliary power source and connections

Control Wires for External Comm

aif:spec:controlWiresForExternalComm

float

Control wires for external comm

Control HMI

aif:spec:controlHmi

string

Control HMI

Computer Room Air Handler properties (aif:spec: namespace). Applied in addition to Common properties.

Property

Namespace

Type

Description

Face Area

aif:spec:faceArea

float

Face area in sq. m

Nominal Cooling Capacity

aif:spec:nominalCoolingCapacity

float

Nominal cooling capacity (kW)

Total Capacity

aif:spec:totalCapacity

float

Total capacity (kW)

Sensible Capacity

aif:spec:sensibleCapacity

float

Sensible capacity (kW)

Flow Rate

aif:spec:flowRate

float

Flow rate in GPM

Return Air Volume

aif:spec:returnAirVolume

float

Return air volume in ACFM

Fan Motor Power Max

aif:spec:fanMotorPowerMax

float

Fan motor power max (kW)

Unit Pressure Drop

aif:spec:unitPressureDrop

float

Unit pressure drop (ft of water)

External Static Unit Pressure

aif:spec:externalStaticUnitPressure

float

External static unit pressure (Pa)

Electrical Panel Access

aif:spec:electricalPanelAccess

float

Electrical panel access in mm

Nominal Air Volume

aif:spec:nominalAirVolume

float

Nominal air volume in CFM

Maximum HP

aif:spec:maximumHp

float

Fan motor maximum horsepower

Number of Fans

aif:spec:numberOfFans

int

Number of EC fans

Number of Rows

aif:spec:numberOfRows

int

Number of rows (chilled water coil)

Face Velocity

aif:spec:faceVelocity

float

Face velocity in FPM (chilled water coil)

Primary Pipe Diameter

aif:spec:primaryPipeDiameter

float

Primary pipe diameter

Secondary Pipe Diameter

aif:spec:secondaryPipeDiameter

float

Secondary pipe diameter

Piping Connection

aif:spec:pipingConnection

string

Piping connection (top and bottom)

Primary Control

aif:spec:primaryControl

string

Primary control

Power Supply

aif:spec:powerSupply

float

Power supply

Electrical Nominal Voltage

aif:spec:electricalNominalVoltage

float

Electrical nominal voltage

Electrical Current

aif:spec:electricalCurrent

float

Electrical current

Electrical Frequency

aif:spec:electricalFrequency

float

Electrical frequency (Hz)

Electrical Power Rating

aif:spec:electricalPowerRating

float

Electrical power rating

Electrical Phase

aif:spec:electricalPhase

int

Electrical phase

Electrical Panel Options

aif:spec:electricalPanelOptions

string

Electrical panel options

Humidification

aif:spec:humidification

string

Humidification

Air Filter

aif:spec:airFilter

string

Air filter

Coil

aif:spec:coil

string

Coil name

High Voltage Options

aif:spec:highVoltageOptions

float

High voltage options

Monitoring

aif:spec:monitoring

string

Monitoring type

Uninterruptible Power Supply properties (aif:spec: namespace). Applied in addition to Common properties.

Property

Namespace

Type

Description

UPS Rating

aif:spec:upsRating

float

UPS rating (kW)

Electrical Input Voltage

aif:spec:electricalInputVoltage

float

Electrical nominal voltage (V)

Electrical Current

aif:spec:electricalCurrent

float

Electrical current

Input Current Distortion

aif:spec:inputCurrentDistortion

float

Input current distortion (THDi) at nominal voltage, full load

Electrical Input Frequency

aif:spec:electricalInputFrequency

float

Electrical input frequency (Hz)

Electrical Input Phase

aif:spec:electricalInputPhase

int

Electrical input phase

Input Power Factor

aif:spec:inputPowerFactor

float

Electrical power factor

Electrical Power Walk-In

aif:spec:electricalPowerWalkIn

float

Power walk-in (seconds)

Battery Type

aif:spec:batteryType

string

Battery type

Battery Float Voltage

aif:spec:batteryFloatVoltage

float

Battery float voltage (V)

DC Ripple Voltage

aif:spec:dcRippleVoltage

float

DC ripple at float voltage

Nominal Battery Bus

aif:spec:nominalBatteryBus

string

Nominal battery bus

Temperature Compensated Battery Charging

aif:spec:temperatureCompensatedBatteryCharging

float

Temperature compensated battery charging

Output Active Power

aif:spec:outputActivePower

float

Output active power at 104 °F (kW)

Load Power Factor

aif:spec:loadPowerFactor

float

Load power factor supported (without derating)

Output Voltage

aif:spec:outputVoltage

float

Output voltage

Electrical Output Frequency

aif:spec:electricalOutputFrequency

float

Electrical output frequency (Hz)

Electrical Output Phase

aif:spec:electricalOutputPhase

int

Electrical output phase

Output THD Nominal Voltage

aif:spec:outputThdNominalVoltage

float

Output THD at nominal voltage (RMS)

Output THD Non-Linear Load

aif:spec:outputThdNominalVoltageWithNonLinearLoad

float

Output THD with 100 kVA non-linear load per IEC 6204 (RMS)

Transient Recovery Load

aif:spec:transientRecoveryLoad

string

Transient recovery 100 load step

Voltage Displacement

aif:spec:voltageDisplacement

float

Voltage displacement

Overload at Nominal Voltage

aif:spec:overloadAtNominalVoltage

float

Overload at nominal voltage and 77 °F (25 °C)

UPS Enclosure Class

aif:spec:upsEnclosureClass

string

Enclosure class (with and without front door)

Color

aif:spec:color

string

Color

Operating Temperature

aif:spec:operatingTemperature

float

Operating temperature (°C)

Relative Humidity

aif:spec:relativeHumidity

float

Relative humidity (non-condensing)

Operating Altitude

aif:spec:operatingAltitude

float

Operating altitude without derating

Communication Options

aif:spec:communicationOptions

float

Communication options

Card Compatibility

aif:spec:cardCompatibility

string

Card compatibility

Protocols Available

aif:spec:protocolsAvailable

string

Protocols available

NVIDIA DGX GB300 NVL72 rack properties (aif:spec: namespace). Unlike other templates, this includes reference values for a specific asset.

Property

Namespace

Type

Value

Description

Name Plate Power

aif:spec:namePlatePower

int

136,000 W

UPS rating (W)

MaxP DC (EDPP2)

aif:spec:maxPowerDcEdpp2

float

240 kW

Max power DC EDPP2

MaxP DC (EDPP1)

aif:spec:maxPowerDcEdpp1

float

204 kW

Max power DC EDPP1

MaxP DC (TDP)

aif:spec:maxPowerDcTdp

float

136 kW

Max power DC thermal design power

MaxP AC (EDPP1)

aif:spec:maxPowerAcEdpp1

float

142 kW

Max power AC EDPP2

Idle Power (default 30%)

aif:spec:idlePowerDefault30Pct

float

40.8 kW

Idle power at default 30% utilization

Idle Power (smoothing 90%)

aif:spec:idlePowerSmoothing90Pct

float

122.4 kW

Idle power with power smoothing at 90%

Ramp Up Rate

aif:spec:rampUpRateDefault

float

20 W/sec/GPU

Default ramp up rate

Ramp Down Rate

aif:spec:rampDownRateDefault

float

20 W/sec/GPU

Default ramp down rate

Heat Capture Ratio

aif:spec:heatCaptureRatio

float

87%

Percentage of total heat captured by liquid cooling

Liquid Cooling

aif:spec:liquidCooling

float

116 kW

Liquid cooling

Air Cooling

aif:spec:airCooling

float

19.3 kW

Air cooling

Required Air Flow Rate

aif:spec:requiredAirFlowRate

float3_array

Curve data

Required air flow rate curve (inlet temp, flow, capacity)

Required Liquid Flow Rate

aif:spec:requiredLiquidFlowRate

float3_array

Curve data

Required liquid flow rate curve (inlet temp, L/s, LPM)

Liquid Side PQ Curve

aif:spec:liquidSidePqCurve

string

Polynomial

Pressure drop curve: y = f(x) where x = flow rate (LPM)

Number of GPUs

aif:spec:numGPUs

int

72

Number of discrete GPUs in rack

Significant Internal Structure

aif:spec:significantInternalStructure

string

N/A

Significant internal structure

Doors Perforations

aif:spec:doorsPerforations

string

None

Door perforations

See also