Symmetricom 5402 manual Symmetricom 5401 Airborne Disciplined Rubidium Oscillator

Page 10

Operating Manual

Introduction

Symmetricom 5401 Airborne Disciplined Rubidium Oscillator

The Symmetricom 5401 is built in an airborne package that is powered by standard aircraft power (+28 VDC) and is installed by mounting the chassis on a flat base plate. Refer to Chapter 4 for complete specifications.

Figure 1 Symmetricom 5401 3-View

Symmetricom 5402 Disciplined Rubidium Oscillator

The Symmetricom 5402 is built in a standard rack mount configuration that is powered by commercial power anywhere in the world (85 to 264 VAC). The unit is designed to be installed in a standard 19-inch RETMA electronic enclosure. Chassis slides are recommended for support.

Figure 2 Symmetricom 5402 2-View

PN 8500-0150, Rev. A, May 2005

2

Image 10

Contents

Airborne Disciplined Rubidium Oscillator Symmetricom, Inc Limited Warranty Operating Manual PrefaceLimitation of Liability Where to Find Answers to Product and Document QuestionsProprietary 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 Adjustments Symmetricom 5402 Installation ProcedureSymmetricom 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 KO1, KO2 Enter KMMinutes 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 TIRequest Firmware Version Enter DAC ValueDTyyy Firmware Number PN 8500-0150, Rev. A, May Request Start-up Parameters Enter 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 Operating Manual Specifications Input Specifications and CharacteristicsInput 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 BasesMHz Oven Oscillator Operating Manual Specifications DRO Internal Time Bases10 MHz Oven Oscillator Approximately 8 pounds DimensionsWeight Approximately 10 pounds PN 8500-0150, Rev. A, MayEnvironment EMI