Symmetricom 5402, 5401 manual Discipline On, Dynamic Gain Control

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Operating Manual

Operation

Response Format:

Discipline On

Command Format:

Description:

The oscillator discipline is turned on. When the conditions are favorable, the discipline algorithm will control the oscillator.

Response Format:

Dynamic Gain Control

Command Format:

Description:

The dynamic gain value determines the response time of the control loop. This command sets the upper and lower limit.

Fgg.g - Dynamic Gain Floor; the lowest value allowed for dynamic gain.

Cgg.g - Dynamic Gain Ceiling; the highest value allowed for dynamic gain.

With the default values for Km, Ko1, Ko2, and Disgain, the dynamic gain will produce the following approximate time constants in the discipline control loop:

PN 8500-0150, Rev. A, May 2005

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Airborne Disciplined Rubidium Oscillator Symmetricom, Inc Limited Warranty Operating Manual PrefaceWhere to Find Answers to Product and Document Questions Limitation of LiabilityProprietary Notice Conventions Used in This Guide When text appears It means This way Operating Manual Preface Typographical ConventionsOperating Manual Contents PN 8500-0150, Rev. A, May Contents-1Specifications Operating ManualProduct Overview Operating Manual IntroductionSymmetricom 5401 Airborne Disciplined Rubidium Oscillator Symmetricom 5402 Disciplined Rubidium OscillatorOperating Manual Installation InstallationSymmetricom 5401 Installation Procedure Unpacking and InspectionSymmetricom 5401 Adjustments 5401 Adjustment LocationsSymmetricom 5402 Rack Mounting Procedure Symmetricom 5402 Installation Procedure Symmetricom 5402 Adjustments Symmetricom 5402 Initial Operation RS-232 Input/Output Operating Manual OperationOperating Manual Operation DRO Commands Via RS-232 Status RequestDiscipline Off DescriptionDiscipline On Dynamic Gain ControlEnter KM Enter KO1, KO2Minutes Enter Disgain Enter Resync ThresholdEnter Resync Delay Enter Rate ThresholdStatus will be output every second Burst Status OnBurst Status Off Turns burst status offDRO Discipline Sequence Flowchart Request TIEnter DAC Value Request Firmware VersionDTyyy Firmware Number PN 8500-0150, Rev. A, May Enter Start-up Parameters Request Start-up ParametersOperating Manual Operation Revision Letter of Firmware Calibrate Unit Response Format DescriptionSet Defaults Returns the unit to a default state Default ValuesRequest Setup Parameters Enter 1 PPS Offset not implementedInput Threshold High/Low Enter Programmable Delay Value Enter Oscillator Control Range not implementedDesign Verify On/Off Cal Status Enter Estimation Filter Time ConstantEnter Dynamic Gain Factors Input Specifications and Characteristics Operating Manual SpecificationsInput Specifications and Characteristics Output Specifications and Characteristics Output Specifications and CharacteristicsCoherence a 5402 Indicators Front Panel Indicators Front Panel5401 Indicators Front Panel DRO Internal Time BasesOperating Manual Specifications DRO Internal Time Bases MHz Oven Oscillator10 MHz Oven Oscillator Approximately 8 pounds DimensionsWeight Approximately 10 pounds PN 8500-0150, Rev. A, MayEnvironment EMI