Symmetricom TimeProvider 1000, TimeProvider 1100 User Manual

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TimeProvider 1000 and 1100

Edge Clock

User Guide

Revision C – August 2005

Part Number 097-58001-02

Symmetricom, Inc.

2300 Orchard Parkway

San Jose, CA 95131-1017

U.S.A.

http://www.symmetricom.com

All product names, service marks, trademarks, and registered trademarks

used in this document are the property of their respective owners.

Table of Contents

Contents

How to Use This Guide

Purpose of This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Who Should Read This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Structure of This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Conventions Used in This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Warnings, Cautions, Recommendations, and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Related Documents and Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

Where to Find Answers to Product and Document Questions. . . . . . . . . . . . . . . . . . xvii

What’s New in This Document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

Chapter 1 Overview of the TimeProvider

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

New Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Expansion Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Performance Monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Phase Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

MTIE Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

TDEV Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

FFOFF Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Physical Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

System Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Communication Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Local Craft Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Remote Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Reference Input Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Selecting the Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SSMs and Quality Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

GPS Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Clock Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Output Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Synchronization Status Messages (SSMs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

SmartClock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

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BesTime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Normal Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

GPS Holdover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Chapter 2 Engineering and Ordering Procedures

Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Model 1000 Front Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Model 1100 Rear Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Expansion Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Front Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Rear Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Input Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

IMC and IOC Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

GPS Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Ordering and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Accessories, Tools, and Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Chapter 3 Installing the TimeProvider

Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Pre-Installation Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Performing a Site Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Gathering the Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Unpacking the Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Rack Mounting the Shelf and Expansion Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Making Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Making Ground Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Making Power Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Verifying Power and Grounding Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Making Input Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Making Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Making Retimer Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Making Alarm Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Making GPS Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Making Communications Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Changing Communications Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Installing Connections to the Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Installation Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Powering Up the Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Working With Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Properly Handling Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Inserting Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Removing Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Firmware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

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Chapter 4 Provisioning the TimeProvider

TL1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

TL1 Command Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

TL1 Response Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Autonomous Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Starting the TimeProvider for the First Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Defining a User at the Security Access Level . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Setting the Source ID <sid> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Setting the Date and Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Setting Communications Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Setting RS-232 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Setting Ethernet Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Checking Communication Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Defining the Security Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Managing the User List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Logging In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Logging Out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Adding a User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Changing the Current User’s Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Displaying a User’s Access Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Editing a User’s Access Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Deleting A User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Retrieving Current Users. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Provisioning the IOC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Setting the System Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Setting the IOC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Provisioning the Input Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Setting the Input State. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Setting the GPS Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Setting the Input Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Setting the Input Frame Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Controlling Automatic Reference Switching . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Setting the Input Quality Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Setting the Input Priority Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Manually Selecting the Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Provisioning the SSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Enabling CRC4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Using Performance Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Provisioning the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Enabling and Disabling the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Provisioning the Output Framing Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Provisioning the Retimer Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

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Provisioning Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Provisioning the Alarm Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Provisioning System-Level Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Retrieving Current Alarm Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Retrieving Current Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Displaying Alarm Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Clearing Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

System Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Displaying Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Displaying the Configuration of the TimeProvider. . . . . . . . . . . . . . . . . . . . . . 129

Restarting the TimeProvider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Saving Provisioning Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Chapter 5 Testing the TimeProvider

Testing the TimeProvider. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Test Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Verifying Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Testing Alarm Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Testing the IOC Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Testing the Reference Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Testing the Non-Revertive Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Testing the Revertive Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Testing the Power Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Detecting Input Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Testing the Communication Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Testing the Local Craft Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Testing the Remote Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Testing the Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Testing the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Chapter 6 Maintaining and Troubleshooting the TimeProvider

Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

ESD Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Diagnosing the IOC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Reading LED Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Interpreting Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Removing the IOC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Replacing the IOC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

vi TimeProvider User’s Guide 097-58001-02 Revision C – August 2005

Table of Contents

Diagnosing the IMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Reading LED Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Interpreting Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Replacing the IMC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Diagnosing the TPIU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Replacing Output Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Replacing the Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Troubleshooting the TimeProvider. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Using Events to Troubleshoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Using Alarm Codes to Troubleshoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Repairing the TimeProvider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Obtaining Technical Assistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Upgrading the Firmware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Upgrading the IMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Upgrading the IOC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Returning the TimeProvider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Repacking the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Equipment Return Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

User Guide Updates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Chapter 7 Specifications of the TimeProvider

Communications Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Serial Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

LAN Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

T1 Retimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Input Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Output Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Roof Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

TimeProvider 1000 Front-Access Shelf. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

TimeProvider 1100 Rear-Access Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Default Command Access Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Alarm Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

Default Equipment Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Default Input Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

097-58001-02 Revision C – August 2005 TimeProvider User’s Guide vii

Table of Contents

Default Output Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Installing SynCraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Starting SynCraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Index

viii TimeProvider User’s Guide 097-58001-02 Revision C – August 2005

List of Figures

Figures

1-1 TimeProvider 1000 ETSI-style Shelf. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

1-2 TimeProvider 1100 Rear Access Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1-3 TimeProvider 1100 Expansion Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1-4 TimeProvider 1000 - Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

1-5 TimeProvider 1100 - Rear Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

1-6 Block Diagram of the TimeProvider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

1-7 The TimeProvider Interface Unit (TPIU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3-1 Installing the Model 1000 Shelf and Expansion Panel - 19-inch Rack . . . . . 51

3-2 Installing the Model 1100 Shelf and Expansion Panel - 19-inch Rack . . . . . 52

3-3 Installing the Model 1000 Shelf and Expansion Panel - 23-inch Rack . . . . . 53

3-4 Installing the Model 1100 Shelf and Expansion Panel - 23-inch Rack . . . . . 53

3-5 Power Terminal Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

3-6 Assembling the ETSI Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

3-7 BNC Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

3-8 Wire-Wrap Input Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

3-9 DB9 Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

3-10 BT43 Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

3-11 Metric (Siemens) Input Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

3-12 BNC and Wire-Wrap Output Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

3-13 DB9 and BT43 Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

3-14 Metric (Siemens) Output Module and T1 Retimer Wirewrap Output Module 62

3-15 Making Retimer Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

3-16 DB-25 Alarm Connector (Front View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3-17 Locating the GPS Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

3-18 Antenna-to-Shelf Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

3-19 Installing the Antenna Bracket on a Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

3-20 Installing the Antenna Bracket on a Post . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

3-21 Attaching the Antenna to the Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

3-22 Assembling the Lightning Suppressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

3-23 Mounting the TPIU and Expansion Panel on the Same Rack Ears . . . . . . . 71

3-24 Mounting the TPIU with a Model 1000 ETSI-Style Shelf . . . . . . . . . . . . . . . 71

B-1 The SynCraft Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

B-2 The Create New Connection Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

B-3 Logical View of the TimeProvider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

097-58001-02 Revision C – August 2005 TimeProvider User’s Guide ix

List of Figures

x TimeProvider User’s Guide 097-58001-02 Revision C – August 2005

List of Tables

Tabl es

1-1 Typical Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

1-2 SSU-Based Reference Selection Scenarios. . . . . . . . . . . . . . . . . . . . . . . . . . .34

1-3 Subtending-Based Reference Selection Scenarios . . . . . . . . . . . . . . . . . . . . .35

1-4 ANSI SSM Quality Level Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

1-5 ITU SSM Quality Level Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

2-1 Input Modules Available for the TimeProvider . . . . . . . . . . . . . . . . . . . . . . . . .43

2-2 Output Modules Available for the TimeProvider . . . . . . . . . . . . . . . . . . . . . . . .43

2-3 IOC and IMC Modules Available for the TimeProvider . . . . . . . . . . . . . . . . . . .44

2-4 GPS Parts and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

2-5 TimeProvider Shelves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

3-1 Power Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

3-2 Input Connector Modules Available for the IOC . . . . . . . . . . . . . . . . . . . . . . . .57

3-3 Pinout for the DB9 Input Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

3-4 Output Connector Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

3-5 Pinout for the DB9 Output Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

3-6 Alarm Connector Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

3-7 Connector Pinouts for the Serial Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

3-8 Ethernet Communications Port Signal Connections. . . . . . . . . . . . . . . . . . . . .74

3-9 Installation Completeness Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

3-10 Firmware Feature Matirx. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

4-1 TL1 Syntax Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

4-2 Default Mask Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

4-3 Provisioning Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131

5-1 LED Conditions for the IOC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136

5-2 LED Conditions for the IMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137

5-3 Record of Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143

6-1 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146

6-2 LED Conditions for the IOC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147

6-3 LED Conditions for the IMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152

6-4 LED Conditions for the TPIU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154

6-5 Event Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .156

6-6 Set and Clear Conditions for Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164

6-7 Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167

6-8 Event Code Conditional Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177

7-1 Serial Port Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

7-2 Holdover Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .189

7-3 Input Signal Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190

7-4 Output Signal Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

7-5 T1 Retimer Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192

7-6 Output Alarm Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193

7-7 Typical Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193

7-8 Antenna Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .194

097-58001-02 Revision C – August 2005 TimeProvider User’s Guide xi

List of Tables

A-1 Default Access Levels for TL1 Commands. . . . . . . . . . . . . . . . . . . . . . . . . . .198

A-2 Default Alarm Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .199

A-3 Default Equipment Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202

A-4 Default Input Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203

A-5 Default Output Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204

xii TimeProvider User’s Guide 097-58001-02 Revision C – August 2005

How to Use This Guide

This section describes the format, layout, and purpose of this guide.

In This Preface

 Purpose of This Guide

 Who Should Read This Guide

 Structure of This Guide

 Conventions Used in This Guide

 Warnings, Cautions, Recommendations, and Notes

 Related Documents and Information

 Where to Find Answers to Product and Document Questions

 What’s New in This Document

097-58001-02 Revision C – August 2005 TimeProvider User’s Guide xiii

How to Use This Guide

Purpose of This Guide

The TimeProvider User’s Guide describes the procedures for unpacking, installing, using, maintaining, and troubleshooting the Symmetricom TimeProvider. It also includes appendixes that describe default values and how to install the included software application SynCraft.

Who Should Read This Guide

Chapter 1, Overview of the TimeProvider, and Chapter 2, Engineering and Ordering Procedures, are written for non-technical audiences who need general information

about the product. Chapter 3, Installing the TimeProvider and subsequent chapters contain technical information about the product. Other chapters and appendixes describe installation, maintenance, and configuration instructions or details primarily intended for qualified maintenance personnel.

Structure of This Guide

This guide contains the following sections and appendixes:

Chapter, Title Description

Chapter 1, Overview of the TimeProvider

Chapter 2, Engineering and Ordering Procedures

Chapter 3, Installing the TimeProvider

Chapter 4, Provisioning the TimeProvider

Chapter 5, Testing the TimeProvider

Chapter 6, Maintaining and Troubleshooting the TimeProvider

Chapter 7, Specifications of the TimeProvider

Appendix A, Factory Default Valu es

Provides an overview of the product, describes the major hardware and software features, and lists the system specifications.

Lists the part number and ordering procedure for all TimeProvider parts and accessories.

Contains procedures for unpacking and installing the product.

Describes TimeProvider after installing the unit.

Provides checklist-based commissioning tests that should be performed after completing turn-up and software configuration to ensure the system is ready for normal operation.

Contains preventive and corrective maintenance, and troubleshooting procedures for the product.

Lists the specifications for the TimeProvider

Includes a list of the factory default values for hardware and software parameters.

the TL1 commands required to provision the

Appendix B, CRAFT Software Reference

Index

xiv TimeProvider User’s Guide 097-58001-02 Revision C – August 2005

Describes how to use the CRAFT software interface with the TimeProvider.

Provides references to individual topics within this guide.

How to Use This Guide

Conventions Used in This Guide

This guide uses the following conventions:

 Acronyms and Abbreviations – Terms are spelled out the first time they appear

in text. Thereafter, only the acronym or abbreviation is used.

 Revision Control – The title page lists the printing date and versions of the

product this guide describes.

 Typographical Conventions – This guide uses the typographical conventions

described in the table below.

When text appears

this way...

TimeProvider User’s Guide The title of a document.

SSU CRITICAL IOC1

Select File, Open... Click the Open option on the File menu.

Press

Enter

Press ;

TimeProvider Username:

PING STATUS

A re-timing application A word or term being emphasized.

An operating mode, alarm state, status, or chassis label.

A named keyboard key. The key name is shown as it appears on the keyboard.

An explanation of the key’s acronym or function immediately follows the first reference to the key, if required.

Text in a source file or a system prompt or other text that appears on a screen.

A command you enter at a system prompt or text you enter in response to a program prompt. You must enter commands for case-sensitive operating systems exactly as shown.

... it means:

Symmetricom does not recommend...

A word or term given special emphasis.

Warnings, Cautions, Recommendations, and Notes

Warnings, Cautions, Recommendations, and Notes attract attention to essential or critical information in this guide. The types of information included in each are explained in the following examples.

097-58001-02 Revision C – August 2005 TimeProvider User’s Guide xv

How to Use This Guide

Warning: To avoid serious personal injury or death, do not disregard warnings. All warnings use this symbol. Warnings are installation, operation, or maintenance procedures, practices, or statements, that if not strictly observed, may result in serious personal injury or even death.

Caution: To avoid personal injury, do not disregard cautions. All cautions use this symbol. Cautions are installation, operation, or maintenance procedures, practices, conditions, or statements, that if not strictly observed, may result in damage to, or destruction of, the equipment. Cautions are also used to indicate a long-term health hazard.

ESD Caution: To avoid personal injury and electrostatic discharge (ESD) damage to equipment, do not disregard ESD cautions. All ESD cautions use this symbol. ESD cautions are installation, operation, or maintenance procedures, practices, conditions, or statements that if not strictly observed, may result in possible personal injury, electrostatic discharge damage to, or destruction of, static sensitive components of the equipment.

Electrical Shock Caution: To avoid electrical shock and possible personal injury, do not disregard electrical shock cautions. All electrical shock cautions use this symbol. Electrical shock cautions are practices, procedures, or statements, that if not strictly observed, may result in possible personal injury, electrical shock damage to, or destruction of components of the equipment.

Recommendation: All recommendations use this symbol. Recommendations indicate manufacturer-tested methods or known functionality. Recommendations contain installation, operation, or maintenance procedures, practices, conditions, or statements, that provide important information for optimum performance results.

Note: All notes use this symbol. Notes contain installation, operation, or maintenance procedures, practices, conditions, or statements, that alert you to important information, which may make your task easier or increase your understanding.

xvi TimeProvider User’s Guide 097-58001-02 Revision C – August 2005

How to Use This Guide

Chapter 1 Overview of the TimeProvider

This chapter describes the TimeProvider product.

In This Chapter

 Overview

 Operating Modes

 Performance Monitoring

 Physical Description

 Functional Description

 System Power

 Communication Ports

 Reference Input Signals

 Clock Performance

 Output Signals

 Alarms

 Synchronization Status Messages (SSMs)

 SmartClock

 BesTime

097-58001-02 Revision C – August 2005 TimeProvider User’s Guide 19

Chapter 1 Overview of the TimeProvider

Overview

The TimeProvider is Synchronization Supply Unit (SSU) designed specifically to meet the needs at the network edge. In small offices where core office synchronization solutions are critical, an edge clock like the TimeProvider is ideal because of its compact size and flexibility. Using the integrated GPS features, the TimeProvider can be used in a “small” Central Office to act as a Primary Reference Source (PRS).

The TimeProvider’s unique design incorporates the input, output, and clock functions in a single card, available with either a Rubidium or quartz oscillator. This allows you to simplify the storage inventory required for future expansion needs. The TimeProvider shelf requires only three plug-in cards to operate with full redundancy: dual Input/Output/Clock cards (IOCs) and a single Information Management Card (IMC), which serves as a communications/alarm interface. The main shelf provides up to 32 redundant universal timing outputs; an optional Expansion Panel provides an additional 32 redundant outputs.

Using Symmetricom’s SmartClock™ technology design, the oscillators within the IOCs are enhanced with improved performance and accuracy. Using intelligent firmware algorithms, SmartClock “learns” the effects of the ageing of the clock while it is locked to a reference signal and stores this information in its memory. If the reference signals are lost or disqualified, SmartClock uses the stored data to compensate for frequency changes while the TimeProvider continues to distribute highly stable synchronization signals.

The TimeProvider also uses Symmetricom’s BesTime

algorithm when the GPS input is activated. By using other inputs as references, Bestime calculates and determines a weighting factor for each of the inputs and ensembles them in the overall timing scheme to provide very accurate timing outputs. In the event of GPS signal loss, BesTime continues to predict GPS timing information to provide reliable system timing outputs and holdover performance, ensuring that system reliability is maintained. See BesTime, on page 39 for more information.

New Capabilities

The operating software in the TimeProvider is improved to provide the following capabilities:

 Retiming – A new Output module is available to re-time, re-amplify, and re-shape

an inbound (East) data-bearing signal. The TimeProvider provides a stable frequency source to re-transmit the data to the line-terminating Network Element. The return (West) path on the module provides re-amplify and re-shape only. See

Retimer Module, on page 30, for more information.

 Input/output port labeling – The user can label TimeProvider input and output

ports, including the input side on the Retimer module. The label, or circuit ID, can be up to 40 characters long.

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Chapter 1 Overview of the TimeProvider

 Event log management – Event log retrieval has been enhanced to provide a

Overview

more user-programmable lookup. In the new format, there are two additional methods to retrieve the event log. 1) The user can specify a beginning point (the “index”) within the event log and display a number of events (“count” value) starting from the index. 2) The user can display events within a specified “start date” and “stop date.”

When you use redundant IOC cards, Symmetricom recommends that you use the same revision of firmware for proper operation.

Shelves

The TimeProvider is available in two shelf models. Each shelf supports up to 32 redundant output channels.

 The TimeProvider 1000 is a 175 mm tall ETSI shelf that meets the requirements

of ETSI 300 119-4 January 1994. Figure 1-1 shows the TimeProvider 1000 shelf.

 The TimeProvider 1100 is a 130 mm tall rear-access shelf; indicators are on the

front panel and connections are available on the rear panel. Figure 1-2 shows the front panel of the TimeProvider 1100.

Figure 1-1. TimeProvider 1000 ETSI-style Shelf

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Chapter 1 Overview of the TimeProvider

Overview

Figure 1-2. TimeProvider 1100 Rear Access Shelf

Expansion Panel

The TimeProvider has an optional Expansion Panel that doubles (to 64) the number of output channels available. Figure 1-3 shows the rear-access version of the Expansion Panel. The Expansion Panel receives timing signals from the TimeProvider main shelf through an expansion cable.

Figure 1-3. TimeProvider 1100 Expansion Panel

Inputs

The TimeProvider accepts the following types of input signals:



Primary Reference Signals: 1.544 MHz, 2.048 MHz, 5 MHz, 6.312 MHz, or 10 MHz

 Span input signals:

– E1 (CCS programmable only), or 2.048 MHz analog – T1 D4, Extended Superframe (ESF) – Composite Clock, including Japan Composite Clock (JCC) and Japan

Composite Clock with 400 Hz (JCC4) signals – 1.544 MHz analog – 6.312 MHz analog

 GPS input: GPS signal from the TimeProvider Interface Unit (TPIU)

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Chapter 1 Overview of the TimeProvider

The TimeProvider qualifies the input reference signals and detect the following errors: Loss of Signal (LOS), Alarm Indication Signal (AIS), Loss of Framing, and Synchronization Status Messages (SSM) where applicable. Reference Input

Signals, on page 32, describes the inputs in more detail.

Overview

Outputs

The TimeProvider produces a variety of outputs to meet different signal standards. Output signal types include 8 kHz, 1.544 MHz, 2.048 MHz, 6.312 MHz, E1, T1, CC, JCC, and JCC4. A Retiming module is also available to re-time, re-shape, and re-amplify E1 and T1 signals. The E1 and T1 signals can be provisioned with standard framing that meets G.703 formats. These outputs are available through one of several different connector panels. The E1 Retiming module is available with either BNC or Siemens 1.6/5.6 connectors, and the T1 Retiming module has wirewrap connectors. See Output Signals, on page 36, for more information on output signals.

The TimeProvider outputs are arranged into four groups of eight outputs per group in the Main shelf and four groups of eight outputs per group in the optional Expansion panel. Each group is labeled A, B, C, and D, and can be configured independently.

Communication

Three communications ports provide access to the TimeProvider: Ethernet, local Craft serial port, and a Remote serial port. These ports are described in detail in

Communication Ports, on page 31.

Clocks

The TimeProvider’s clock design includes a highly stable ovenized Quartz crystal or Rubidium oscillator with Direct Digital Synthesis (DDS) to produce accurate synchronization outputs. In a dual-IOC configuration, the clock function is redundant to provide protection. Each IOC qualifies the input signal and filters jitter and wander noise elements that may exist. In the event that all input references are lost or disqualified, the TimeProvider’s clock design, together with the SmartClock technology, goes into holdover mode with the oscillator providing the system reference.

The Rubidium IOC meets Stratum 2/Type II performance; the Quartz IOC meets Stratum 3E/Type I performance.

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Chapter 1 Overview of the TimeProvider

Operating Modes

You can configure the TimeProvider to operate in one of three modes: Synchronization Supply Unit (SSU), Subtending (SUB) as defined by Telcordia GR-378 Section 7, or Primary Reference Receiver (PRR) when the GPS input is available. Each mode is unique in its operation, and is defined in the following paragraphs.

SSU Mode

This is the TimeProvider’s default operating mode. Valid signals on the PRS, INP1, INP2, or GPS connectors can be selected as the system reference. In this mode, the INP1 and INP2 inputs cannot be provisioned to receive Composite Clock (CC) signals, including JCC or JCC4. The method of selecting the system reference is described in Selecting the Input, on page 32.

SUB Mode

This mode allows the TimeProvider to operate as a Remote shelf where phase is critical. When you select the SUB mode, INP1 and INP2 are automatically set for CC inputs (including JCC and JCC4). Outputs provisioned for CC are phase-aligned with the selected CC input reference. Other output types comply with G.703 and GR-1244.

To configure the TimeProvider for Subtending mode, see Setting the System Mode, on page 96.

PRR Mode

In PRR mode, the GPS is automatically selected as the system reference input. This requires that you connect a GPS signal through the TPIU to the TimeProvider using the provided interconnect cable. This mode complies with ITU-T G.811 and Telcordia GR-2830 requirements for Primary Reference Receivers/Clocks. Valid signals on the PRS, INP1, or INP2 connectors are used in conjunction with BesTime to extend compliance with GR-2830/G.812 standards.

The PRR mode uses Symmetricom’s BesTime servo control that allows the TimeProvider to continue providing outputs in case GPS tracking is lost, the GPS data loses integrity, or if the IMC is removed from the shelf. BesTime, on page 39 provides more information on the BesTime technology.

To configure the TimeProvider for PRR mode, see Setting the System Mode, on page 96.

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Performance Monitoring

The TimeProvider can monitor and qualify all enabled input signals based on phase measurements. It measures the phase differences between the inputs and the output of the corrected clock. From these phase measurements, the TimeProvider computes frequency offset and wander of the input signals. Wander is reported in terms of Maximum Time Interval Error (MTIE) and Time Deviation (TDEV) and creates phase, MTIE, TDEV, and Fractional Frequency Offset (FFOFF) reports. Performance data is automatically gathered on all enabled or monitored inputs.

Using MTIE and FFOFF data, the TimeProvider qualifies inputs based on these metrics. User-specified thresholds can be set to disqualify inputs and generate corresponding alarms, causing the TimeProvider to switch references or enter the Holdover mode.

For more information on performance monitoring, see Using Performance

Monitoring, on page 108. The TimeProvider TL1 Reference Guide contains a

section describing the TL1 commands related to performance monitoring.

Chapter 1 Overview of the TimeProvider

Performance Monitoring

Phase Measurements

The IOC measures and transfers 1-second phase data with 100 ns resolution from each enabled input to the IMC every 10 seconds. This phase data is averaged to a 1 ns resolution, which is used to produce a 1-minute phase data sample. The 1 ns data sample is the basis for MTIE, TDEV, and FFOFF calculations. The phase data is not used to qualify an input reference source.

TL1 commands are available to display the 60 most recent phase data (at 100 pS resolution) measurements, the previous 86400 1 ns data averages, and the previous 10080 samples of 1-minute 1 ns-resolution data.

MTIE Calculations

MTIE is a measure of the relative noisiness of an input signal that relates to frequency offsets and phase transients. The TimeProvider automatically calculates MTIE for each enabled input from the 600 most recent 1-second phase updates. From this calculation, you can retrieve MTIE values for 1, 5, 10, 50, 100, and 500-second windows. You can set an alarm threshold for each of these windows; if the MTIE value exceeds this threshold and the alarm level is set to Minor or higher, the TimeProvider generates an alarm.

You can use the automatic MTIE calculations to qualify each input with user-defined qualification thresholds. If an input exceeds the threshold, then the input reference automatically switches to the next-best input.

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Chapter 1 Overview of the TimeProvider

Physical Description

You can also set thresholds using pre-defined masks according to ANSI T1.101 (for PRS inputs), ITU-T G.811 (for PRC inputs), or ITU-T G.812 (for Type I and Type II/III inputs). The TimeProvider performs a second MTIE calculation using the previous 24-hour period; this calculation is not used to qualify inputs.

TDEV Calculations

TDEV is a measure of the relative noisiness of an input signal that relates to its spectral content. The TDEV for each enabled input is automatically calculated from the previous 24-hour period. The TDEV value is used for monitoring only and is not used for qualifying an input signal.

You can retrieve the TDEV values for the following integration times: 1, 5, 10, 100, 500, 1000, 5000, and 7200 (84000/12) seconds.

FFOFF Calculations

FFOFF is a measure of the frequency deviation of the input signal against the system reference, expressed as a ratio. The TimeProvider automatically calculates FFOFF for each enabled input from the 600 most recent 1-second phase updates.

You can use the automatic FFOFF calculations to qualify each input with user-defined qualification thresholds. If an input exceeds the threshold and the alarm level is set to Minor or higher, then the input reference automatically switches to the next-best input.

The TimeProvider stores historical FFOFF measurements for each enabled input every 60 seconds. You can retrieve FFOFF data for the prior 24 hours, depending on the number of faults that have occurred.

Physical Description

The TimeProvider consists of a shelf, plug-in cards, connector adapter panels for the cards, cables, hardware, and software. The TimeProvider is available in two configurations: front access (Model 1000) and rear access (Model 1100), as shown in Figure 1-1 and Figure 1-2.

Figure 1-4 illustrates the location of the connectors, cards, and modules in the

TimeProvider 1000.

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Chapter 1 Overview of the TimeProvider

Physical Description

Ethernet

Connector

Expansion Connector

Power

Connector

Input

Module

Figure 1-4. TimeProvider 1000 - Front Panel

Remote Serial

Connector

GPS Connector

Output Modules

Local Craft Connector

Power Connector

IOC 2IOC 1 IMC

Figure 1-5 illustrates the location of the connectors, cards, and modules in the

TimeProvider 1100.

Power

Connector

Remote Serial

Connector

Expansion

Connector

GPS

Connector

Ethernet

Connector

Power

Connector

Input

Output Modules

Figure 1-5. TimeProvider 1100 - Rear Panel

Module

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Chapter 1 Overview of the TimeProvider

Functional Description

The TimeProvider consists of a main shelf and slots for two IOCs and one IMC. One plug-in Input module and up to four plug-in Output modules complete the main shelf, which provides up to 32 outputs. The optional Expansion Panel can provide up to 32 additional outputs, to provide a total of 64 outputs.

This section describes the components and block diagram of the TimeProvider. The block diagram, shown in Figure 1-6, contains the following major blocks:

 Shelf

 Input module

 IMC

 IOC

 Output module

 Expansion Panel required for ports 33 through 64

 TimeProvider Interface Unit (TPIU)

Figure 1-6. Block Diagram of the TimeProvider

Shelf

Both the front-access and rear-access shelf provides a chassis for mounting the Input module, one IMC, two IOCs, and up to four Output modules. A backplane provides connections between the modules.

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Functional Description

Input Module

The Input module receives the incoming reference signals and contains the alarm input/output connector. A variety of connector modules allows you to select the connector style and input impedance to match the wiring system at the installation site.

Information Management Card (IMC)

The Information Management Card, known as the IMC, contains a processor that manages communications between the two IOCs and the serial and Ethernet communications ports. It also provides communication to the GPS receiver in the antenna; if the IMC fails or is removed, GPS operations cease.

Input/Output and Clock Module (IOC)

The TimeProvider operates with one or two IOCs. A second IOC in the shelf provides protection should the primary IOC fail. The IOC accepts the incoming reference signal and decodes the SSM, if present.

With the system properly provisioned and a reference signal selected, the local oscillator in the IOC operates in one of the following states:

 Warm-up – For up to 20 minutes after applying power to the shelf, the IOC

operates in warm-up mode.

 Fast-lock – After warm-up is complete, the IOC enters the fast-lock state, where it

quickly frequency-locks the local oscillator to the reference input.

 Normal lock – After the IOC has completed the fast-lock cycle, it enters the

normal lock mode, in which the TimeProvider uses the proper amount of filtering for the selected mode. When set to the SSU mode and locked to an active input traceable to a Primary Reference Source (PRS), the TimeProvider complies with the G.811 and GR-2830-CORE standards.

 Holdover – If the reference signal is lost, then the clock enters the holdover

mode. The accuracy of the TimeProvider output is then dependent on the quality level of the oscillator in the IOC.

 Free-run – If the IOC starts without a system reference, the TimeProvider enters

the free-run state after warm-up. If a reference is applied, then the TimeProvider enters the fast-lock and then the normal-lock states.

 Bridging – In the event that all input references are lost, the TimeProvider goes

into the bridging mode where the outputs continue to provide accurate timing outputs for a limited amount of time. If the inputs have not been requalified before the bridging time has elapsed, then the TimeProvider enters the holdover mode.

After the IOC has been in the Normal lock mode for at least three days, SmartClock holdover mode becomes available. Compared to the normal holdover mode, this mode provides a superior output quality.

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Chapter 1 Overview of the TimeProvider

System Power

Output Module

The Output module provides the output connectors for the TimeProvider. You can install up to four Output modules on the main shelf. Like the Input module, each Output module uses one of a variety of connectors that match the wiring system at the installation site. Making Output Connections, on page 60, describes the Output Modules available for the TimeProvider and the Expansion Panel.

Retimer Module

The Retimer module allows you to reshape, reamplify, and retime up to two E1 or T1 signals applied to the module and then deliver the improved signal to a connected Network Element. You can install a Retimer module in any of the four slots used by Output modules, but not in the available Expansion Panel. The T1 Retimer supports line build-out (LBO) of up to 655 ft. Making Retimer Connections, on page 62, and

Provisioning the Retimer Module, on page 112, provide more information on using

the Retimer module.

Expansion Panel

The Expansion Panel provides up to 32 additional outputs that the TimeProvider can generate. See Expansion Panel, on page 22 and Rack Mounting the Shelf and

Expansion Panel, on page 51 for more information.

TimeProvider Interface Unit

The TimeProvider Interface Unit (TPIU) provides power, communication, and a composite timing reference signal between the antenna and the TimeProvider main shelf. During antenna installation, you can use the LEDs on the TPIU to detail the status of the received power and antenna communication. See Making GPS

Connections, on page 64 for more information.

System Power

The TimeProvider main shelf has redundant –48v DC inputs. The inputs are diode or’d; in the event that one supply fails, the other takes over. The –48v returns are isolated from the chassis and circuit grounds. A 5 A fuse on the IOC protects the TimeProvider; the shelf is protected from damage in case the connections are reversed.

The power supply range is from –36 to –72 V DC. The power requirements vary according to the type of IOC installed;

Table 1-1. Typical Power Consumption

Table 1-1

lists the power requirements.

IOC Type

Max Power (W)

per IOC

Typical Power (W)

per IOC

Crystal 40 30

Rubidium 60 40 (70 with two Rb IOCs)

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+ 186 hidden pages

Symmetricom TimeProvider 1000, TimeProvider 1100 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

How to Use This Guide

Chapter 1 Overview of the TimeProvider

Overview

New Capabilities

Shelves

Expansion Panel

Inputs

Outputs

Communication

Clocks

Operating Modes

Performance Monitoring

Phase Measurements

MTIE Calculations

Physical Description

TDEV Calculations

FFOFF Calculations

Functional Description

System Power