Symmetricom 5402, 5401 manual Enter Disgain, Enter Resync Threshold

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Operating Manual

Operation

Description:

nnnnnn- Base number for Ko1; nnnnnn (000000 to 999999) represents a number from 0 to 0.999999. Ko1 controls the cut off frequency of the offset error noise filter.

oooooo- Base number for Ko2; oooooo (000000 to 999999) represents a number from 0 to 0.999999. Ko2 controls the cut off frequency of the frequency error noise filter.

Response Format:

Enter Disgain

Command Format:

Description:

ddddd- Base number for Disgain; ddddd (00000 to 99999) controls gain common to both the offset error and the frequency error paths of the discipline loop.

Response Format:

Enter Resync Threshold

Command format:

Description:

rrrrrr.rrr- Resync Threshold; rrrrrr.rrr (microseconds) is the limit value that determines if a resync will occur when disciplining restarts. A resync will always be occur after power up.

Response Format:

PN 8500-0150, Rev. A, May 2005

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Airborne Disciplined Rubidium Oscillator Symmetricom, Inc Limited Warranty Operating Manual PrefaceProprietary Notice Where to Find Answers to Product and Document QuestionsLimitation of Liability 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 OscillatorInstallation Symmetricom 5401 Installation ProcedureOperating Manual Installation Unpacking and InspectionSymmetricom 5401 Adjustments 5401 Adjustment LocationsSymmetricom 5402 Rack Mounting Procedure Symmetricom 5402 Initial Operation Symmetricom 5402 Installation ProcedureSymmetricom 5402 Adjustments RS-232 Input/Output Operating Manual Operation Operating Manual Operation DRO Commands Via RS-232 Status RequestDiscipline Off DescriptionDiscipline On Dynamic Gain ControlMinutes Enter KMEnter KO1, KO2 Enter Disgain Enter Resync ThresholdEnter Resync Delay Enter Rate ThresholdBurst Status On Burst Status OffStatus will be output every second Turns burst status offDRO Discipline Sequence Flowchart Request TIDTyyy Firmware Number PN 8500-0150, Rev. A, May Enter DAC ValueRequest Firmware Version Operating Manual Operation Revision Letter of Firmware Enter Start-up ParametersRequest Start-up Parameters 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 Input Specifications and CharacteristicsOperating Manual Specifications Output Specifications and Characteristics Output Specifications and CharacteristicsCoherence a Indicators Front Panel 5401 Indicators Front Panel5402 Indicators Front Panel DRO Internal Time Bases10 MHz Oven Oscillator Operating Manual Specifications DRO Internal Time BasesMHz Oven Oscillator Dimensions WeightApproximately 8 pounds Approximately 10 pounds PN 8500-0150, Rev. A, MayEnvironment EMI