Symmetricom 5401, 5402 manual Operating Manual Contents, PN 8500-0150, Rev. A, May Contents-1

Page 7

Operating Manual

Contents

Preface

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii Limitation of Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Proprietary Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Where to Find Answers to Product and Document Questions . . . . . . . . . . . . . iv Warnings, Cautions, Recommendations, and Notes . . . . . . . . . . . . . . . . . . . . iv

Conventions Used in This Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

1 — Introduction

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Symmetricom 5401 Airborne Disciplined Rubidium Oscillator . . . . . . . . . .2

Symmetricom 5402 Disciplined Rubidium Oscillator . . . . . . . . . . . . . . . . .2

2 —Installation

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Unpacking and Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Symmetricom 5401 Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Symmetricom 5401 Initial Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Symmetricom 5401 Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Symmetricom 5402 Rack Mounting Procedure. . . . . . . . . . . . . . . . . . . . . . . . . .5

Symmetricom 5402 Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Symmetricom 5402 Initial Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Symmetricom 5402 Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3 —Operation

RS-232 Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Status Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Discipline Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Discipline On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Dynamic Gain Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Enter KM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Enter KO1, KO2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Enter Disgain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Enter Resync Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Enter Resync Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Enter Rate Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

PN 8500-0150, Rev. A, May 2005

Contents-1

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Contents
Airborne Disciplined Rubidium Oscillator Symmetricom, Inc Operating Manual Preface Limited WarrantyLimitation of Liability Where to Find Answers to Product and Document QuestionsProprietary Notice Conventions Used in This Guide Operating Manual Preface Typographical Conventions When text appears It means This wayPN 8500-0150, Rev. A, May Contents-1 Operating Manual ContentsOperating Manual SpecificationsOperating Manual Introduction Product OverviewSymmetricom 5402 Disciplined Rubidium Oscillator Symmetricom 5401 Airborne Disciplined Rubidium OscillatorUnpacking and Inspection InstallationSymmetricom 5401 Installation Procedure Operating Manual Installation5401 Adjustment Locations Symmetricom 5401 AdjustmentsSymmetricom 5402 Rack Mounting Procedure Symmetricom 5402 Adjustments Symmetricom 5402 Installation ProcedureSymmetricom 5402 Initial Operation Operating Manual Operation RS-232 Input/OutputStatus Request Operating Manual Operation DRO Commands Via RS-232Description Discipline OffDynamic Gain Control Discipline OnEnter KO1, KO2 Enter KMMinutes Enter Resync Threshold Enter DisgainEnter Rate Threshold Enter Resync DelayTurns burst status off Burst Status OnBurst Status Off Status will be output every secondRequest TI DRO Discipline Sequence FlowchartRequest 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 Response Format Description Calibrate UnitReturns the unit to a default state Default Values Set DefaultsEnter 1 PPS Offset not implemented Request Setup ParametersInput Threshold High/Low Enter Oscillator Control Range not implemented Enter Programmable Delay ValueDesign Verify On/Off Enter Estimation Filter Time Constant Cal StatusEnter Dynamic Gain Factors Operating Manual Specifications Input Specifications and CharacteristicsInput Specifications and Characteristics Output Specifications and Characteristics Output Specifications and CharacteristicsCoherence a DRO Internal Time Bases Indicators Front Panel5401 Indicators Front Panel 5402 Indicators Front PanelMHz Oven Oscillator Operating Manual Specifications DRO Internal Time Bases10 MHz Oven Oscillator Approximately 10 pounds PN 8500-0150, Rev. A, May DimensionsWeight Approximately 8 poundsEMI Environment
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