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Agilent Technologies Z5623A manual A2 Controller and A3 Switch Driver Board Theory

Models: Z5623A

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Theory of Operation

A2 Controller and A3 Switch Driver Board Theory

The mother and daughter boards provide the bias for the switching paths for the various ports to the Reflection or Transmission ports. The front panel display contains an LCD that indicates the switched ports. A particular test port (1 through 8) can be in one of three states. The three states are:

•Switched to the forward path

•Switched to the reverse path

•Terminated in 50 Ω

When a port is not connected, it is automatically terminated in 50 Ω. Only one test port can be connected to any one reflection port and only one test port can be connected to any transmission port at any given time.

The test set consists of eight 1x2 switches and six 1x4 switches. The 1x2 switches divide each of the input ports (1 through 8) into two separate paths.

All switches are electromechanical and are biased according to the necessary switching path. A user interface through the GPIB and parallel ports converts the necessary input signals from the user to the necessary control signals to control the switching paths.

A4 Front Panel Display Theory

The front panel display consists of an LCD. The LCD is divided into two lines of text. The first line indicates which of the twelve ports are connected to the forward path. The second line indicates which of the twelve ports are connected to the reverse path. Control signals and DC power are provided by a cable connected to the main switch board.

Connector Replacement

The 50 Ω Type-N connectors are available separately. It is possible to replace them in the field.

8 -4	Agilent Technologies Z5623A Option H48

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Agilent Technologies Z5623A manual A2 Controller and A3 Switch Driver Board Theory, A4 Front Panel Display Theory

Contents

Agilent Technologies Z5623A Option H48 Manufacturing Part Number Z5623-90016 JuneWarranty Statement DFARS/Restricted Rights NoticeSafety Notes Page Contents Calibrating the Network Analyzer Measuring Multiport Devices Contacting Agilent Instrument Description Typical Equipment Setup OverviewSpecifications Guaranteed Performance Agilent Z5623A Option H48 Guaranteed Performance SpecsParameter Specification Typical Performance Agilent Z5623A Option H48 Typical Performance SpecsParameter Typical Performance Operating Environment Electrical RequirementsEnvironmental Requirements Non-Operating Storage ConditionsCabinet Dimensions General CharacteristicsWeight Miscellaneous CharacteristicsCleaning and Shipping Instructions CleaningShipping Installation Accessories Supplied with Z5623A Option H48 Checking the ShipmentDescription Agilent Part Number Quantity Recommended Additional Equipment Recommended Equipment Not Supplied With Test SetDescription Model Or Part Number Quantity Familiarization with Safety Requirements Electrical PreparationsElectrical Preparations Power Cables Environmental Preparations Ventilation Clearance RequirementsExample of an Antistatic Workstation Front Panel Features Test Set FamiliarizationFront Panel Port Connection Status LCD Rear Panel Features Rear PanelLine Fuse Setting the Gpib Address of the Test Set Gpib Address SwitchesEquation Connecting and Turning on the Test Set RF Cables Connecting Network Analyzer to Test SetLength Purpose Detailed Equipment Connection Diagram Connecting and Turning on the Test Set Using the Network Analyzer to Preparing the Analyzer to Control the Test Set System MenuSICL/GPIB Window PNA DeskTop Interactive Control windowUser Controller Window Manual Control Window How to Send a Manual Command StepCommon Errors in Manual Commands This section explains several common errorsList of Gpib Commands Test Port Commands Connection PathCommand Ooooo Loool Restoring the Analyzer to its Normal Configuration Symptoms Disaster RecoveryMalfunctioning Command Window Recovery ProcedureNetwork Analyzer Screen With Four Applications Running 10 Analyzer Screen After Right-Click On My Computer Icon 12 Hardware Tab In System Properties Window 13 Device Manager Window Malfunctioning Network Analyzer 15 Gpib Device Disabling MessageCalibrating the Network Performing the Calibration Calibrating the Network AnalyzerCalibration Menu on Network Analyzer Cal Type Window When It Is First Opened Electronic Calibration Window 10 Cal Wizard Window After Cal Is Complete Renaming the Calibration File 11 My Computer Window12 Root Directory of the C Drive 14 C\Program Files\Agilent Directory 16 Directory Containing Cal Files 18 Cal File Highlighted 19 Preparing to Rename the Cal File 20 The Cal File After It Has Been Renamed Name of Calibration FileHow to Recall a Calibration Recalling and Examining CalibrationsMethod 1. Calibration File Is Not On Quick Recall List 22 File Recall Window How to Turn a Calibration On and Off Method 2. Calibration File Is On Quick Recall ListCorrection On/Off button 25 Calibration Turned On How to Examine the Properties of a Calibration 27 Calibration Properties ButtonPerformance Verification Setting Test Limits Equation 5-1 How to Set Test LimitsMeasurement Band KHz 1.3 GHz Parameter Specification Measurement Test Limit Uncertainty SetTest Strategy Insertion Loss Return LossCrosstalk Setting Up Limit Testing Limit Test FilesTest Name File Name Limit Testing for Insertion Loss Recalling the CalibrationSpecifying Measurement Type, Title, and Scaling Title... Button Title Entry Window With Insertion Loss Entered Scale Window With Default Values Setting Up the Limit Table Limit Test... ButtonEmpty Limit Table Limit Table Entries for Insertion Loss 11 Completed Limit Table for Insertion LossTurning On Limit Lines and Limit Testing 12 Turning On Limit Testing and Limit Line Display14 Save As... Button 15 Save As... Window 17 Insertion Loss Test Setup, Cal File Recalled Checking the Limit Test File18 Insertion Loss Test Setup, Limit Test File Recalled Limit Testing for Return Loss Port Active 19 Title Entry Window With Return Loss Port Active EnteredLimit Table Entries for Return Loss Port Active Segment Beginning Ending Number Type Stimulus Response22 Return Loss Port Active Limit Test On ECal Module Saving the Limit Test File Setting Up Limit Testing Specifying the Title Limit Testing for Return Loss Port OffRecalling the Port Active Limit Test File Limit Table Entries for Return Loss Port Off24 Completed Limit Table for Return Loss Port Off Recalling the Limit Test FileLimit Testing for Crosstalk Specifying Output Power26 Power Window with Default Values Specifying if Bandwidth and Averaging 28 The if Bandwidth... Button30 if Bandwidth Window with Value Desired for Crosstalk 32 Average Window with Default Settings 34 The Status Bar Button Setting Up Limit Testing 36 The Scale... Button Limit Table Entries for Crosstalk 38 Completed Limit Table for CrosstalkTurning On Limit Lines and Limit Testing Verifying Return Loss and Insertion Loss Specifications Measurements Using The Reflection PortMeasurements Using The Transmission Port Pass/Fail Test Results For Insertion Loss And Return Loss 40 Setup for Measuring Crosstalk of Test Set Verifying Crosstalk SpecsPass/Fail Test Results for Crosstalk Test Ports ResultMeasuring Multiport Devices Calibrating the Test System Calibrating the Test System Calibrating the Test System Advanced Topics Gpib Queries Using an External Computer to Control the Test SetGpib Queries Query What the test set sends in responseUsing Quick Basic or Visual Basic Switch CountUsing Rocky Mountain Basic RMB LanguagesUsing Hpvee HpibEolhHpib7,,0 disable EOLUsing National Instruments Visa Using the Control Lines Connector Control Line Commands for 9-Pin ConnectorSuggested External Circuitry Control LinesSwitch Driver Circuit For Use With Control Lines Connector Adjustable Voltage Regulator Circuit Using the Control Lines Connector Service Adjustments Z5623A Option H48 Block DiagramA1 Power Supply Theory Theory of OperationSystem Theory A2 Controller and A3 Switch Driver Board Theory Connector ReplacementA4 Front Panel Display Theory Troubleshooting General Troubleshooting NotesTroubleshooting Power Supply Problems Troubleshooting the Front Panel Board Troubleshooting the Controller and Switch Driver BoardsList of Replaceable Parts Replaceable Parts for Z5623A Option H48Reference Description Part Number Quantity Designator Replaceable Parts for Z5623A Option H48 Safety and Regulatory Information Safety Information Safety Information Instrument Markings Declaration of Compliance with German Noise Requirements Regulatory InformationStatement of Compliance with IEC Laermangabe Noise DeclarationRegulatory Information Contacting Agilent Asia Pacific and Japan Contacting AgilentAmericas Europe