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Fluke DSP-100, DSP-2000 user manual Items on the ACR Results Screen Description

Models: DSP-2000 DSP-100

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Autotest 3

Autotest Results for Twisted Pair Cable

Item

Table 3-6. Items on the ACR Results Screen

Description

NEXT Pairs

Atten. Pair

Result

ACR (dB)

Frequency

Limit

Margin

The pairs that produced the crosstalk value used in calculating the ACR result.

The pair that produced the attenuation value used in calculating the ACR result.

The overall result for the ACR test. A PASS result means that the calculated ACR is higher than the value specified for the selected test standard. A FAIL result means that the calculated ACR is lower than the specified value.

The worst-case ACR. Worst-case ACR is the calculated ACR value that is closest to exceeding specifications. If the ACR exceeded specifications, the value displayed is the ACR value that exceeded specifications by the greatest amount.

The frequency where the worst-case ACR value is calculated.

The specified limit for the ACR at the worst-case frequency. The limit is defined by the test standard selected.

The difference between the worst-case ACR and the limit. A positive number means that the worst-case ACR is higher than the limit. A negative number means that the worst-case ACR is lower than the limit.

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Fluke DSP-100, DSP-2000 user manual Items on the ACR Results Screen Description

Contents

DSP-100/2000 Limited Warranty & Limitation of Liability Table of Contents DSP-100/2000 Appendices DSP-100/2000 List of Tables Tests Run per Test Standard During an Autotest List of Figures Plot of NEXT, Attenuation, and the Resulting ACR Introduction Overview of FeaturesDSP-100/2000 Standard Accessories Standard Accessories Using This Manual DSP-100/2000 International Electrical Symbols Safety and Operational InformationDSP-100/2000 Key Powering the Test ToolUsing the Menus Quick StartQuick Configuration Setup SettingQuick Configuration Settings Description Press ! Choice Asterisk and Test Tool Accuracy Results within Accuracy RangeAutotest on Twisted Pair Cable Horizontal Cross Connect Blocks Meters Getting Started Autotest on Coaxial Cable Autotest on Coaxial Cable DSP-100 DSP-2000 Main Unit FeaturesMain Unit Features Description FeatureStandard and Smart Remote Features Remote FeaturesRemote Connectors and Features Remote FeaturesRotary Switch Strap and BailOff Autotest Monitor Single TestSetup Smart Remote Model DSP-100 Turning On the Test ToolPrint Special FunctionsPerforming a Self-Test Selecting a Language for Displays and ReportsControlling the Backlight Configuring the Test ToolOvervoltage Test Noise TestSelecting a Power Line Filter Frequency Adjusting the Display ContrastSelecting a Test Standard and Cable Type Selecting an Average Cable TemperatureSelecting a Conduit Setting Selecting a Numeric Format Selecting a Length UnitSetting the Date and Time Enabling or Disabling the Audible Tones Setting the Power-Down TimerRemote Lights, Messages, and Audible Tones Smart Remote Ready Remote End TestingBattery Status Remote Communication ErrorBattery Status Display Autotest Softkeys AutotestSmart Autotest Link Performance Grade Result Headroom Automatic Diagnostics Model DSP-2000Automatic Diagnostics Model DSP-2000 Autotest Results for Twisted Pair Cable Wire Map TestAutotest Results for Twisted Pair Cable Length ResistanceCharacteristic Impedance Propagation Delay and Delay SkewItems on the Attenuation Results Screen Description AttenuationGc10c.eps Items on the Next Results Screen Description Next TestNext Plot Screen Items on the Next Plot Screen Description ACR Items on the ACR Results Screen Description ACR Plot Screen Items on the ACR Plot Screen Description Items on the RL Results Screen Description Return Loss RLRL@REMOTE Model DSP-2000 Psnext Power Sum Next Model DSP-2000 Connector Autotest Results for Coaxial Cable No Reflection AnomalySaving Autotest Results Gc15c.eps Autotest Report Automatically Incrementing the Cable Identification NameIf Memory is Full Part of an Autotest Report for Twisted Pair 10. Autotest Report for Coaxial Cable DSP-100/2000 Single Tests for Twisted Pair Cable Running Individual TestsScanning Function When to Use a Remote UnitRemote Requirements for Cable Tests Remote Unit TestRunning a Single Test on Twisted Pair Cable Running Individual Tests Running the TDX Analyzer TDX AnalyzerItems on the TDX Analyzer Results Screen TDX Analyzer ResultsTDX Analyzer Plot TDR Test How to Terminate the CableRunning the TDR Test on Coaxial Cable Running the TDR Test on Twisted Pair CableTDR Results Screen TDR Plot ScreenItems on a TDR Results Screen Twisted Pair Results Single Test Results for Twisted Pair Cable Wire Map Next and NEXT@REMOTEImpedance Single Tests for Coaxial Cable Return Loss RL and RL@REMOTERunning a Single Test on Coaxial Cable Single Tests for Coaxial Cable Single Test Results for Coaxial Cable Monitoring Network ActivityMonitoring Network Activity DSP-100/2000 Items on the Traffic Monitor Screen Description Identifying Hub Port Connections Monitoring Impulse NoiseChanging the Impulse Noise Threshold Running the Impulse Noise Test Use Dto highlight Impulse Noise on RJ45 Determining Hub Port Capabilities Model DSP-2000 Noise Test ResultsItems on the Noise Monitor Screen Description Using the Tone Generator Model DSP-2000 Printing Test Reports Viewing and Printing Saved ReportsConfiguring the Serial Port Printer Interface CablePrinting Viewing and Printing Saved Reports Printing Test Reports DSP-100/2000 If the Printer Does Not Respond Viewing, Renaming, and Deleting Test Reports Calibrating the Test Tool Calibrations and Custom Test StandardsConnections for Self-Calibration DSP-2000 Shown Use Dto highlight Determine Cable NVP NVP CalibrationConfiguring a Custom Cable Page DSP-100/2000 LAN Cable Construction Basic Cable TestingTwisted Pair Cable Construction Twisted Pair Cable568A Coaxial Cable Construction Coaxial CableAttenuation Attenuation of a SignalSources of Electrical Noise NoiseCharacteristic Impedance Minimizing Impedance Discontinuities Crosstalk and Near-End Crosstalk Next Locating Next ProblemsA TDX Analyzer Plot Basic Cable Testing Split Pairs and Next Incorrect Wiring Split PairMinimizing Crosstalk NVP and Length Measurements Nominal Velocity of Propagation NVPNVP Calibration Time Domain Reflectometry TDRShort Reflections from OpensReflections from Other Discontinuities Reflections from ShortsInterpreting the TDR Plot Cable TerminationACR Frequency in MHz Limit in dBFinding Cable Faults Troubleshooting BasicsTest Failure Identifying Cable Faults Likely Causes of FailureIdentifying Cable Faults Examples of Test Displays and Plots Identifying Cable Faults Test Failure Next test fails Impedance anomaly is Detected DSP-100/2000 Cleaning and Storage MaintenanceRemoving the Battery in the Standard Remote Replacing the NiCad Battery PackRemoving the NiCad Battery Pack Internal Lithium Backup BatteryIf the Test Tool Fails Service Center RepairSymptom 6 Self calibration fails Troubleshooting the Test Tool Symptom 1 Display is blankSymptom 2 Remote unit is not detected Symptom 3 Test results appear to be incorrectReplacement Parts Replacement Parts DescriptionPart Number Compatibility with Remote Units SpecificationsService Center Calibration Period Self-Calibration PeriodCable Types Tested Test StandardsTime for Autotest Length Test Propagation Delay TestLength Test Specifications Propagation Delay Test SpecificationsNext DC Loop ResistanceTDX Analyzer Specifications for Cables 100m 328 ft TDR Specifications for Cables 100m 328 ftReturn Loss Serial Interface Impulse NoiseModel DSP-100 LAN Traffic Model DSP-2000 LAN Traffic25-pin Connector PC Interface CablePC Interface Cable Connections Test Tool End DB9S female Environmental Requirements PowerInput Ratings Operating Environment SpecificationsMemory DimensionsWeight CertificationsRJ45 Connector WarrantyDisplay DSP-100/2000 Appendices Page Introduction Using DSP-LINKInstalling DSP-LINK Connecting to a PCPreparing for Data Transfer Figure A-1. Connecting the Test Tool to a PC Configuring the Serial PortsCommunication Problems Detailed Test Data Quick Plot DSP-LINK FunctionsDSP-100/2000 Table A-3. Formats for Uploaded Reports Courier Point Size Formatting Hints for Uploaded ReportsGetting Software Updates from Fluke Downloading New Test Standards Downloading New Software 10Base2 10BaseT100BaseTX Bandwidth Baseband SignalingBroadband Signaling Auto-NegotiationCrossed Pair CapacitanceChannel CollisionEIA 568A CrosstalkCSV Data DownloadImpedance Discontinuity Hardware Flow ControlHorizontal Cabling Horizontal Cross-ConnectPacket Propagation DelayLink Pulse Near-End Crosstalk NextScreened Twisted Pair ScTP Reversed PairRJ45 Runt PacketToken Ring Split PairTDXä TerminatorXON/XOFF Flow Control DSP-100/2000 Tests Run per Test Standard During an Autotest Next Tests Run per Test Standard During an Autotest C Prop. Return Loss Delay2 Delay Skew2TP-PMD Return Loss Prop Delay2 Delay Skew2DSP-100/2000 Index DSP-LINK Next DSP-100/2000 Index DSP-100/2000 Manual Supplement Change #1 Wire Map Displays Displayed Schematic Description Wire Map ConditionWire map display showing an open on pair 1 Wire map display showing a split pair on pairs 1, 2 and 3 Change #3