Name: Symmetricom 5071A
Brand: Symmetricom
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Chapter 1 Getting Started

Chapter 1 Contents

2 Operating and Programming Manual

Chapter 1 Contents

This chapter introduces you to the front-panel interface menus and shows how to

perform more complex time-keeping tasks.

This chapter is organized as follows:

• The 5071A at a Glance page 3

• Rear-Panel Connections page 7

• Starting the 5071A page 8

• Performing Basic Tasks page 10

Safety Considerations4
- Table of Contents12
Contents13
Preface18
Introducing the 5071A19
Operating the 5071A21
How this Manual Is Organized25
Manuals Supplied26
Related Documentation26
Accessories, Options, and Specifications26
Instruments Covered by this Manual27
Suggested Sequence of Reading27
Chapter 1 Getting Started29
- Chapter 1 Contents30
The 5071A at a Glance31
- Indicators31
- Controls31
- Connectors31
- Quick Reference Guide to Controls31
Rear-Panel Connections35
Starting the 5071A36
Performing Basic Tasks38
- Synchronizing to an External 1 PPS Reference38
- Setting Time and Date39
- Powering down the 5071A39
Chapter 2 Using the 5071A41
- Chapter 2 Contents42
Using the Front-Panel Menus44
- Keypad Descriptions44
- Controlling the 5071A from the Front-Panel44
Setting the Output Port Frequency45
Setting the 1Pps and Clock Outputs46
- To Set the 1Pps Outputs46
- To Synchronize the 1Pps Outputs Using a Time-Interval Counter46
- To Set the Clock47
- To Turn the Clock Display on or off48
- To Schedule a Leap Second48
Monitoring Status49
- To Select Parameters49
- To Interpret Displayed Results49
- To Print a Status Report49
Reading and Managing the Event Log50
- To Check Log Status50
- To View Log Entries50
- To Clear the Log50
- To Print the Log50
Steering the Output Frequency51
- Steering Explained51
- To Add an Offset51
- To Check an Offset52
- To Remove an Offset52
Using Utility Features53
- To Reset the Continuous Operation Light53
- To Reset the Rear-Panel Status Output53
- To Display the Firmware Revision or CBT Identification String53
- Diagnostic Self-Tests53
Configuring the 5071A54
- To Set the Operating Mode54
- To Set the Printer Log Mode54
- To Set up the Serial Port55
- To Save a Configuration55
Connecting a Printer55
Disabling the Internal Standby Battery56
Chapter 3 In Case of Difficulty57
- Chapter 3 Contents58
Front-Panel Indicators and Messages59
- Clock Display59
- Attention Light59
- Continuous Operation Light59
- LCD Display60
- Instrument States61
- Front-Panel Warning Messages62
Power-Up Problems63
Using Menus to Check Operational Status64
- Information Menu64
- LOG Menu64
- Utilities Menu64
- CLOCK Menu64
- Configuration Menu64
Operating System Failure65
- Operating System Failure Symptoms65
- Restarting the 5071A65
Verifying Operation66
Cesium Beam Tube Life66
Chapter 4 Remote Operation and Programming67
- Chapter 4 Contents68
Remote-Operation Setup69
- Overview69
- Remote Interface Features69
- Serial-Port Description69
- Hardware Connection70
- Serial-Port Configuration72
Remote-Modem Setup and Precautions74
- Overview74
- Modem Selection74
- Modem Configuration74
- Verifying Remote Operation with a Terminal75
Programming Overview76
SCPI Command Conformance77
Command Types78
- Common Command Format78
- SCPI Command and Query Format78
- RST Reset Response82
Sample Program Commands83
- Status Monitoring Tasks84
- Instrument Control Tasks85
Batch Processing for the Program Commands87
- Command Scripts on a Personal Computer87
- SCPI Considerations for HP BASIC88
- Example Program90
Tips on Using the RS-232C Port on the 5071A93
- Using Ctrl-Q in Programs95
Setting the Serial Port Parameters with the Option 300 Front Panel95
Chapter 5 Command Reference97
- Chapter 5 Contents98
5071A Command Summary99
- IEEE 488.2 Common Commands99
- SCPI Commands101
Description of SCPI Commands106
- Diagnostic Commands106
- Display Commands111
- Precision Time (Date and Time) Commands112
- Reference Oscillator Commands116
- Status Monitoring Commands118
- System Commands123
Status Reporting127
Rear-Panel Status Output Operation130
- Status Output Programming130
Serial-Port Command/Printer Interface133
- Mode Selection133
- Pacing133
- The Prompt133
- End-Of-Line Characters133
Error Messages/Codes134
Chapter 6 Specifications137
- Chapter 6 Contents138
Accuracy and Stability139
Frequency Stability (5 and 10 Mhz Outputs)140
- Sinusoidal Output Characteristics (All Located on Rear Panel)140
Supplemental Characteristics141
Chapter 7 Installation145
- Chapter 7 Contents146
Initial Inspection147
Preparation for Use148
- Power Requirements148
- Selecting Line Voltage and Fuse149
- AC Power Cabling150
- Operating Environment151
- Bench Operation151
- Installing Options 908 and 913151
Returning the 5071A to Symmetricom152
Operator's Maintenance154
Operating the 5071A from External DC Power154
- Preparing the 5071A for External-DC Operation155
- Replacing the External DC Input Power Fuse156
Internal Standby Battery Maintenance157
- Battery Shelf Life and Storage157
- Battery Operating Temperatures157
- Battery Charging158
- Battery Disposal159
- Removing and Replacing the Internal Battery160
Cesium Beam Tube Replacement161
Long-Term Storage161
Appendix A Performance Tests163
Introduction164
- Operational Verification164
- Complete Performance Tests164
- RS-232 Verification164
Test Record164
Equipment Required165
5071A Operational Verification168
- Power-On Self-Tests and Servo Lock168
Rear-Panel Output Signal Checks170
- Required Equipment170
RS-232 Serial Port Verification171
5071A Complete Performance Tests173
- Test 1- Output Signals: Harmonic Distortion and Spurious Signals Check173
- Test 2 - Frequency Accuracy181
- Test 3 - Stability184
- 5071A Performance Test185
Appendix B Glossary187
5071A Glossary188
Index191
Service and Support193

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Symmetricom 5071A Specifications

General

Brand	Symmetricom
Model	5071A
Category	Measuring Instruments
Language	English

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