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EXPO SyncWatch-110 User Manual

Versatile synchronization test and monitoring system
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User Guide
Issue 1.49
SyncWatch-110
Versatile Synchronization Test
and Monitoring System
SyncWatch Version A
www.EXFO.com
Telecom Test and Measurement

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  • Page 1 User Guide Issue 1.49 SyncWatch-110 Versatile Synchronization Test and Monitoring System SyncWatch Version A www.EXFO.com Telecom Test and Measurement...

  • Page 2: Copyright Statement

    SyncWatch User Guide Issue 1.49 Copyright statement Copyright © 2011-2015 EXFO Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form, be it electronically, mechanically, or by any other means such as photocopying, recording or otherwise, without the prior written permission of EXFO Inc.

  • Page 3: Safety Information

    SyncWatch User Guide Issue 1.49 Safety information AUTION This unit is for indoor use only. AUTION All electrical interfaces are SELV (Safety Extra Low Voltage) circuitry intended for intra- building use only. To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord. AUTION No user serviceable parts are contained inside.

  • Page 4: Critical Information

    SyncWatch User Guide Issue 1.49 Critical information Caution: The SyncWatch probe should only be installed and maintained by a suitably qualified engineer after observing the precautions listed within this guide. If the SyncWatch product is used in a manner not specified in the instructions the safety afforded by the product may be impaired. Warning: To avoid serious personal injury or death, do not disregard warnings.

  • Page 5: Certification Information

    SyncWatch User Guide Issue 1.49 Certification information North America Regulatory Statement This unit was certified by an agency approved in both Canada and the United States of America. It has been evaluated according to applicable North American approved standards for product safety for use in Canada and the United States.
  • Page 6 SyncWatch User Guide Issue 1.49 EXFO Inc.

  • Page 7: Table Of Contents

    SyncWatch User Guide Issue 1.49 Contents Copyright statement ......................2 Trademarks ........................2 Units of measurement ....................... 2 Safety information ......................3 Critical information ......................4 Certification information ....................5 North America Regulatory Statement ................5 European Community Declaration of Conformity ............. 5 Contents ..........................
  • Page 8 SyncWatch User Guide Issue 1.49 Synchronization in telecom networks ................23 Determining the signal type..................24 Controlling signal levels and integrity ................25 Matching end-to-end signal impedance ............... 26 Using correct cable infrastructure ................26 Compensating for propagation delay ................27 Understanding what is being measured ...............
  • Page 9 SyncWatch User Guide Issue 1.49 Flexible frequency ports ..................43 E1/T1 ports......................43 SyncE/PTP port ...................... 43 SyncE/PTP ports ..................... 44 1 PPS port ....................... 44 TOD / 1 PPS port ....................44 Output port ......................44 GNSS port ....................... 44 GPRS ........................
  • Page 10 SyncWatch User Guide Issue 1.49 NetSMART ........................54 Initial probe configuration (all modes) ............... 55 Communicating with the probe ..................55 Local port........................55 LAN port ........................55 Configuration ........................56 Main menu........................56 Information menu ......................57 Configuration menu ...................... 57 Managed configuration ...................
  • Page 11 SyncWatch User Guide Issue 1.49 Configure a second measurement source ..............84 Sample rate ........................85 Monitor output ......................85 UTC offset ........................85 Save config........................85 Start measurement ....................... 85 Advanced graphing (Frequency data analysis)............86 ESMC statistics ......................90 1PPS TOD statistics .....................
  • Page 12 SyncWatch User Guide Issue 1.49 Heartbeat configuration ....................124 Delete a measurement profile ..................124 Location maps ......................125 Create a location map ....................125 Replace a location map ....................126 Delete a location map ....................126 Move probe ........................ 126 Measurements plots .....................
  • Page 13 SyncWatch User Guide Issue 1.49 Phase FTP ......................... 142 Delete network ......................142 SNMP - optional ......................143 Configure northbound SNMP ..................145 MIB file ........................145 Traps ........................145 Server configuration ....................145 Firmware upgrade ......................147 Maintenance ........................ 149 Probe firmware upgrade ....................
  • Page 14 SyncWatch User Guide Issue 1.49 Platform requirements .................... 157 NetSMART software ....................158 Platform requirements .................... 158 Browser requirements .................... 158 Contacting the Technical Support Group ..............159 Transportation ......................159 Warranty ........................161 General information ....................161 Liability ........................162 Exclusions ........................

  • Page 15: About This Guide

    SyncWatch User Guide Issue 1.49 About this guide Purpose of this guide The SyncWatch User Guide describes the procedures for unpacking, installing, operating and maintaining the SyncWatch probe. In addition, an overview of network synchronization principles is included. Who should read this guide The SyncWatch product overview found in section 4 is written for non-technical audiences who need general information about the product.

  • Page 16: Structure Of This Guide

    SyncWatch User Guide Issue 1.49 Structure of this guide Each of the SyncWatch ‘modes of operation’ is dealt with independent sections within this guide. In some cases this will result in information being repeated. However, this approach simplifies access to the required information during the process of installation and configuration. Useful definitions Global Positioning System is a US government owned system using a number of Satellites orbiting the earth, these satellites are primarily intended to give positioning...
  • Page 17 SyncWatch User Guide Issue 1.49 Electrostatic Discharge ETSI European Telecom Standard Institute File Transfer Protocol GNSS Global Navigation Satellite System GPIB General Purpose Interface Bus GPRS General Packet Radio Service Global Positioning System Group Special Mobile HDB3 High Density Bipolar 3 Code IEEE Institute of Electrical &...
  • Page 18 SyncWatch User Guide Issue 1.49 SONET Synchronous Optical Networking Secure Shell Synchronization Supply Unit SYNC E Synchronous Ethernet Transmission Control Protocol Time Interval Error Transistor-Transistor Logic Universal Serial Bus Universal Time Coordinated EXFO Inc.

  • Page 19: Synchronization Introduction

    SyncWatch User Guide Issue 1.49 Synchronization introduction What is network synchronization? Synchronization is the means by which digital equipment in a communications network operates in unison. For the transmission of digital data, information is coded into discrete bits, data frames or packets.

  • Page 20: Source Clocks

    SyncWatch User Guide Issue 1.49 These slave nodes are usually designed to accept two or more timing references. At any time, one reference is active while all other alternate references are standby. In the case where the active reference is lost, the receiver node can switch references and lock to an alternate reference. Each receiver node therefore, has access to timing from two, or more, source nodes providing redundant operation.

  • Page 21: Traditional Networks

    SyncWatch User Guide Issue 1.49 Traditional networks The normal mode of operation for a receiver clock is to extract timing from the source clock's reference. Should any short-term reference errors occur the receiver clock must be able to handle them. These errors may be timing instabilities (jitter) or short-term reference interruptions (error bursts).

  • Page 22: Testing

    SyncWatch User Guide Issue 1.49 Testing Testing the quality of synchronization has always been required; be it as part of equipment acceptance, installation/commissioning or as part of on-going maintenance and support activities. Synchronization test equipment must be portable/transportable and easy to use by engineering teams that have to support an ever-increasing number of equipment and services that operators provide.

  • Page 23: Making Synchronization And Timing Measurements

    SyncWatch User Guide Issue 1.49 Making synchronization and timing measurements Synchronization and timing measurement fundamentals The purpose of a synchronization or timing measurement is to determine the quality of a clocking source. This may also include the effects introduced by the delivery mechanism or network path of the signal from the clock itself to the test point.

  • Page 24: Determining The Signal Type

    SyncWatch User Guide Issue 1.49 Determining the signal type There are three major types of external signals that can be input into SyncWatch, it is important to connect to ports of the correct impedance and configure the correct signal type. If the signal shape is not known prior to measurement, it should be determined using an oscilloscope.

  • Page 25: Controlling Signal Levels And Integrity

    SyncWatch User Guide Issue 1.49 Controlling signal levels and integrity If the voltage levels of any input signal are out of the allowable range, incorrect or no sampling (triggering) will occur and the measurement will be invalid, the allowable range varies depending on the SyncWatch port, the levels are details in the user documentation.

  • Page 26: Matching End-To-End Signal Impedance

    SyncWatch User Guide Issue 1.49 Matching end-to-end signal impedance A device or port generating a signal for measurement by SyncWatch has ‘output impedance’ — the impedance value of its internal circuitry as 'seen' from the outside. Each SyncWatch input port has ‘input impedance’...

  • Page 27: Compensating For Propagation Delay

    SyncWatch User Guide Issue 1.49 Compensating for propagation delay A signal takes a certain amount of time to traverse a cable. The longer the cable the more time it will take the signal to travel from the source equipment to the destination equipment. The speed that the signal travels depends on the cable type, so manufacturer documentation must be referenced to correctly calculate this.

  • Page 28: Understanding What Is Being Measured

    SyncWatch User Guide Issue 1.49 Understanding what is being measured The quality of a timing signal is correctly measured by comparing it to a reference clock that has the same or better timing qualities than those being measured in the measured clock. The relative timing differences between the two clocks as expressed by the output signals that are being measured are recorded as the absolute performance of the measured clock.

  • Page 29: Choosing A Valid Measurement Reference

    SyncWatch User Guide Issue 1.49 Choosing a valid measurement reference Making a measurement with SyncWatch requires at least one reference clock with which to compare the measured clock, correct reference selection is a critical aspect of ensuring a valid measurement. High quality reference signal Use 2 references where possible Internal or external references...

  • Page 30: Validating The Internal Reference

    SyncWatch User Guide Issue 1.49 Validating the internal reference SyncWatch has two methods of generating a reference signal for a measurement, GPS or Rubidium. For these references to be of suitable quality to use, care should be taken to ensure that the reference is allowed to properly stabilize before being used as a reference.

  • Page 31: Identifying Invalid Measurements

    SyncWatch User Guide Issue 1.49 Identifying invalid measurements It is important to be able recognize an invalid measurement within the shortest possible period of time after starting it, as this will limit wasted time and eliminate the need to redo long-term tests. Before starting a measurement it is important to have an idea of what the results are expected to look like after certain periods of time, and if they don’t look as expected, to verify all elements of the test setup.

  • Page 32: Identifying Valid Measurements

    SyncWatch User Guide Issue 1.49 Identifying valid measurements It is important to be able recognize a valid measurement within the shortest possible period of time after starting it, as this will limit wasted time and eliminate the need to redo long-term tests. Each synchronization measurement situation is different and the characteristics of the measured data will vary but there are some common features that can be strong indicators of a valid measurement.

  • Page 33: Product Overview

    SyncWatch User Guide Issue 1.49 Product overview SyncWatch provides a highly versatile telecoms sync testing and monitoring system. This is ideal for network operators, service providers, broadcasters (DVB/DAB) and suppliers involved in specifying and implementing both new generation networks as well as managing and maintaining traditional networks as they reach end of life.

  • Page 34: Modes Of Operation

    SyncWatch User Guide Issue 1.49 For packet measurements the probe uses the internal PTP monitoring module to timestamps each incoming PTP packet. This timestamp information is then used to calculate the packet delay variation of the PTP flow. The PTP monitoring module can either use its own oscillator or the internal GPS receiver module as a reference source for the timestamps.

  • Page 35: Usb Mode

    SyncWatch User Guide Issue 1.49 USB mode In USB mode the probe is configured by, and writes measurement data to a USB storage device. This mode is ideal for lab or remote testing where data can be collected quickly and easily for subsequent offline analysis.

  • Page 36: Syncwatch Smart Software

    SyncWatch User Guide Issue 1.49 SyncWatch SMART software  Graphical User Interface  TIE and MTIE plots  Industry standard MTIE masks USB Measurement Configurator software  Graphical User Interface The USB Measurement Configurator software can only be used to configure a probe; the SyncWatch SMART software can be used to configure a probe and to post process measurement results.

  • Page 37: Standalone Mode

    SyncWatch User Guide Issue 1.49 Standalone mode In Standalone mode the SyncWatch probe communicates directly with the SyncWatch SMART software to display real-time measurements. This mode is particularly useful for lab-based, bench- top testing or field based commissioning and fault diagnosis. The current version of the SyncWatch probe supports both PTP packet and frequency monitoring in Standalone mode SyncWatch probe hardware...

  • Page 38: Syncwatch Smart Software

    SyncWatch User Guide Issue 1.49 SyncWatch SMART software  Graphical User Interface  Live TIE and MTIE plots  Industry standard MTIE masks  Live PTP delay plots EXFO Inc.

  • Page 39: Managed Mode

    SyncWatch User Guide Issue 1.49 Managed mode In Managed mode SyncWatch is a scalable solution for continuously monitoring the performance of a synchronization network from a central point without the need for site visits. This mode is ideal for permanent, integrated performance monitoring as part of existing network operational procedures. The system can consist of a single or multiple SyncWatch probes, deployed at various locations in the operator’s network to be monitored.

  • Page 40: Netsmart Software

    SyncWatch User Guide Issue 1.49  Internal GPS receiver module with Rubidium oscillator (optional)  Internal GPS receiver module with OCXO oscillator (optional)  GSM/GPRS modem (optional) NetSMART software  Scalable and easy to use  Multi-user  Used for permanent monitoring ...

  • Page 41: Hardware

    SyncWatch User Guide Issue 1.49 Hardware Front panel connections EXFO Inc.

  • Page 42: Inputs

    SyncWatch User Guide Issue 1.49 Signal and interface connections Inputs Connector Inputs Impedance Supported Signal type Notes type 2.048 Mbit/s (E1) E1: ITU G.703 sec 9 (2.048 Mbit/s) and 100/120 Ω* RJ48 2.048 MHz (E1) sec 13 (2.048 MHz) 1.544 Mbit/s (T1) TI: ITU G.703 sec 5 *Impedance automatically configured 2.048 Mbit/s (E1)

  • Page 43: Outputs And Other Connections

    SyncWatch User Guide Issue 1.49 Outputs and other connections Connector Output Impedance Supported Signal type Notes type Buffered clock frequency copy of I/P 75 Ω signal (except Mbit/s). Connector Other Impedance Supported Signal type Notes type 50 Ω GNSS L1 GPS 50 Ω...

  • Page 44: Synce/Ptp Ports

    SyncWatch User Guide Issue 1.49 SyncE/PTP ports  Inputs X1, X2, X3 and X4 can support the extraction of a physical layer clock from Synchronous Ethernet (SyncE) signals at 100 M / 1000 M. This input can also support IEEE1588 defined PTP timing packets. (Requires an optional PTP monitoring module to be fitted into the SyncWatch probe).

  • Page 45: Front Panel Module Status Leds

    SyncWatch User Guide Issue 1.49 Front panel Module Status LEDs There are three Module Status LEDs located in the center of the probe front panel: Module Status 1: Shows the operational state of the optional PTP or PTP/SyncE module. Module Status 2: Shows the operational state of the optional TOD / 1PPS module.

  • Page 46: Front Panel Control Buttons

    SyncWatch User Guide Issue 1.49 Front panel Control buttons There are two buttons located near the center of the probe front panel: Control Reset button: Pressing the button will restart the SyncWatch firmware stopping any measurement. Control Function button: Pressing the button will stop a USB measurement. Optional internal modules CTL202 TOD / 1PPS Module: Supports RS-422/V.11 Time of Day and PPS signals.

  • Page 47: Signal Connections - Pin Assignment

    SyncWatch User Guide Issue 1.49 Signal connections – pin assignment All of the pin assignments below refer to the front panel probe connectors. The Installer will need to make appropriate mating connections. Balanced (INPUTS A and C) RJ48 Signal Ring - Negative TIP - Positive BNC connectors (INPUTS A-F and OUT) RS232 (Local)

  • Page 48: Sync E (Input G)

    SyncWatch User Guide Issue 1.49 Sync E (INPUT G) RJ45 Signal LAN port (LAN) RJ45 Signal TOD / 1PPS RJ45 Signal PPS- PPS+ ToD- ToD+ EXFO Inc.

  • Page 49: Installation

    SyncWatch User Guide Issue 1.49 Installation This section explains the procedures to install the SyncWatch probe. Unpacking and preparing Installation tools and equipment The following tools and equipment are needed to install the SyncWatch probe:  Standard tool kit that includes a PH1 driver and 8mm socket ...

  • Page 50: Rack Mount

    SyncWatch User Guide Issue 1.49  Verify that the model and item number matches that shown on the shipping documentation. Contact your SyncWatch distributor if these do not match. The item number is located on the rating label on the underside of the probe. ...

  • Page 51: Grounding The Probe

    SyncWatch User Guide Issue 1.49  As per the national electrical code (NEC) in North America the circuit breakers are required to be a minimum 15 A or higher. Do not connect the unit directly to a DC source without provision for a current limiting device.

  • Page 52: Selecting A Site For The Antenna

    SyncWatch User Guide Issue 1.49 Selecting a site for the antenna Roof antenna placement When selecting a site for the roof antenna, find an outdoor location that provides the best visibility of the sky and horizon. In most cases, this means locating the antenna in a high location, such as a rooftop.

  • Page 53: Installing The Gps Antenna

    SyncWatch User Guide Issue 1.49 Installing the GPS antenna Ensure compliance with all relevant safety precautions and building code regulations. Avoid:  Electrocution, RF, lightning, and falling hazards  RFI and EMI sources such as transmitting antennas  Crimping or making sharp bends in the cable. Procedure: ...

  • Page 54: Gsm/Gprs Sim Card

    SyncWatch User Guide Issue 1.49 GSM/GPRS SIM card It is recommended that the SIM card is sent in advanced to the SyncWatch distributor for installation prior to the dispatch of the probe. Warning: Probe GSM/GPRS fitting requires the case to be opened by competent personnel.

  • Page 55: Initial Probe Configuration (All Modes)

    SyncWatch User Guide Issue 1.49 Initial probe configuration (all modes) This section applies to the SyncWatch product when operating in USB, Standalone and Managed mode. Configuration procedures exclusive to each mode are described in subsequent sections. Communicating with the probe On or prior to installation the SyncWatch probe will need to be set to the required mode of operation: USB, Standalone or Managed.

  • Page 56: Configuration

    SyncWatch User Guide Issue 1.49 Configuration Connect to the SyncWatch probe as described above and a login screen will show. Enter the username swconf and when prompted enter the password fr7ebi. This will load the menu-driven configuration interface as shown below: Main menu Use the keyboard up and down arrows to select the desired menu item and press Enter to select that menu option.

  • Page 57: Information Menu

    SyncWatch User Guide Issue 1.49 Information menu The information menu displays the probe serial number, firmware revision and IP address as shown below: Configuration menu To select and configure a specific mode of operation, use left and right arrows to select Managed, Standalone or USB mode.
  • Page 58 SyncWatch User Guide Issue 1.49 The following sections provide full details of how to configure each parameter. Managed Config and Standalone Config menus can only be accessed if the mode selected is Managed or Standalone EXFO Inc.

  • Page 59: Managed Configuration

    SyncWatch User Guide Issue 1.49 Managed configuration Configure the following: Comms: Select whether Ethernet or Modem is to be used to communicate to the server. Use left and right arrows to select the required method. Host: This is the IP address or domain name (e.g. www.syncwatch.com) of NetSMART.

  • Page 60: Standalone Configuration

    SyncWatch User Guide Issue 1.49 All the input port LEDs on the front panel will light red for approximately 1 minute after which the probe is ready for operation. Standalone configuration Configure the following: Lab Licence: This license key, if entered, unlocks the standalone mode of operation.The License key is supplied with the probe or can be obtained from your SyncWatch distributor.

  • Page 61: Usb Configuration

    SyncWatch User Guide Issue 1.49 USB configuration Configure the following: USB License: This license key, if entered, unlocks the USB mode of operation. The license key is supplied with the probe or can be obtained from your SyncWatch distributor. To execute this mode of operation, select Save & Reboot in Main Menu. All the input port LEDs on the front panel will light red for approximately 1 minute after which the probe is ready for operation.

  • Page 62: Ethernet Configuration

    SyncWatch User Guide Issue 1.49 Ethernet configuration Configure the following: Use DHCP: If this is enabled then the module will request its Ethernet configuration over the network. IP address, subnet mask, gateway and DNS addresses do not need to be entered unless DHCP is disabled.

  • Page 63: Modem Configuration

    SyncWatch User Guide Issue 1.49 Modem configuration Configure the following: Type: Use the left and right arrows to select GSM or GPRS. Phone #: The Dialup number of the remote access server (RAS) that the probe will dial into. This field is only required if communication type is GSM. Gateway: The access point name (APN).

  • Page 64: Hardware Configuration

    SyncWatch User Guide Issue 1.49 Hardware configuration Configure the following: Module 1: Hardware details of optional PTP module. Module 2: Hardware details of optional TOD/1PPS module. Module 3: Hardware details of optional GPS module. Cable Delay: Value is in nanoseconds and is intended to compensate for timing delay introduced by the GPS cable.

  • Page 65: Date And Time Configuration

    SyncWatch User Guide Issue 1.49 Date and time configuration Configure the following: Enable NTP: Use Network Time Protocol (NTP) as a mechanism for controlling probe time. A hash [#] indicates that NTP is enabled, a blank [ ] indicates it is disabled. Toggling between enabled and disabled is achieved using the space bar.

  • Page 66: Gps Status Check

    SyncWatch User Guide Issue 1.49 All the input port LEDs on the front panel will light red for approximately 1 minute after which the probe is ready for operation. GPS status check Carry out the following to check the current status of the GPS signal: Connect to the probe using a PC as described earlier in this section.
  • Page 67 SyncWatch User Guide Issue 1.49 Definition of Receiver codes: Field Optimum Code Comment ‘S’ = Survey, ‘F’ = Fixed Position Survey Status ‘O’ = antenna OK Antenna Status ‘L’ = antenna open circuit ‘H’ = antenna short circuit ‘S’ = Synchronized Oscillator Status S / ? ‘U’...

  • Page 68: Actions Menu

    SyncWatch User Guide Issue 1.49 Actions menu The actions menu displays the Cold Start GPS option as shown below. Selecting the option will restart the GPS module, wait for the GPS module LED to go green prior to starting any measurement.

  • Page 69: Usb Mode - Configuration

    SyncWatch User Guide Issue 1.49 USB mode - configuration SyncWatch in USB mode uses an external USB storage device (typically a USB Flash Drive, or USB ‘Stick’) to configure a measurement and store measurement result files. The USB storage device must have single FAT32 partition format. Before starting the measurement configuration, ensure the SyncWatch probe is set to USB mode as described in section 7.

  • Page 70: Measurement Configuration

    SyncWatch User Guide Issue 1.49 Measurement configuration Start the SyncWatch SMART software and click on the USB Mode Configuration button on the left-hand menu bar, the following screen will appear: The GPS module option may not be available on all SyncWatch probes. The PTP module including SyncE is not supported in USB mode, this includes inputs X1, X2, X3 and X4.

  • Page 71: To Configure A Measurement Source

    SyncWatch User Guide Issue 1.49 In this example the GPS internal module is selected. The following window with drop-down menu will appear: Whenever selecting GPS, either as a reference or measurement source, the correct hardware option will need to be chosen: Select the required module type.

  • Page 72: To Configure A Second Measurement Source

    SyncWatch User Guide Issue 1.49 In this example Input D is selected. The following window will appear: Whenever selecting a Flexible Frequency input (Input B and D), either as a reference or measurement source, the frequency value needs to be entered manually: Enter the required frequency.
  • Page 73 SyncWatch User Guide Issue 1.49 In this example Input A is selected. The following window with drop-down menu will appear: Whenever selecting an E1/T1 input (Input A or C), either as a reference or measurement source, the required signal type needs to be selected: Select the required signal configuration.

  • Page 74: Monitor Output

    SyncWatch User Guide Issue 1.49 Monitor output The OUT connector can be configured to generate a buffered copy of any internal or external clock source (except E1 2.048 Mbit/s and T1 1.544 Mbit/s). Use the drop down menu to select required source.

  • Page 75: Start Measurement

    SyncWatch User Guide Issue 1.49 Start measurement Insert the USB key containing the measurement.conf file into either one of the USB ports in the combined LAN/USB connector. The probe will recognize the USB key and the contents of the measurement.conf file will be validated.
  • Page 76 SyncWatch User Guide Issue 1.49 EXFO Inc.

  • Page 77: Standalone Mode - Operation

    SyncWatch User Guide Issue 1.49 Standalone mode – Operation Multiple instances of SMART are supported on a PC. The number of instances of SMART will be limited by the specification / performance of the PC. This section details the operation of the SyncWatch probe in Standalone mode. It is assumed that the probe has already been configured to operate in this mode, as described in section 7.
  • Page 78 SyncWatch User Guide Issue 1.49 The following dialogue box will appear: Enter the IP address of the SyncWatch probe. To find the IP address of a SyncWatch probe allocated by a DHCP server, connect to the probe directly via a Local port and navigate to the Information menu as described in section 7. The default IP address of the probe is set to 192.168.1.30.
  • Page 79 SyncWatch User Guide Issue 1.49 If the user has opted to add a session name ‘Connect to SyncWatch probe’ dialogue box, the session name will appear in the window header. EXFO Inc.

  • Page 80: Frequency Measurement

    SyncWatch User Guide Issue 1.49 Frequency measurement Click on the Frequency Measurement button on the left-hand menu bar. This action will open the following window: EXFO Inc.

  • Page 81: Configure A Reference Source

    SyncWatch User Guide Issue 1.49 To configure a measurement click the Configure button. The following window will appear: To load an existing configuration: Click the Load Config button. To manually configure a new measurement configuration, follow the procedures below: The GPS and PTP internal modules are both optional and may not be available on all SyncWatch probes.
  • Page 82 SyncWatch User Guide Issue 1.49 Whenever selecting the GPS module, either as a reference or measurement source, the following window will appear showing the hardware type and available modes of operation: Select the required mode of operation. Changing the Cable delay will restart the GPS Internal Reference Module, affecting measurements for upto 5 minutes.

  • Page 83: Configure A Measurement Source

    SyncWatch User Guide Issue 1.49 Configure a measurement source Click on the Measure1 box. Click on one of the available input ports or internal modules to select it as a measurement source. In this example Input D is selected. Whenever selecting a Flexible Frequency input (Input B and D), either as a reference or measurement source, the following window will appear: Enter the required frequency value.

  • Page 84: Configure A Second Measurement Source

    SyncWatch User Guide Issue 1.49 Configure a second measurement source Only when a second measurement source is required, these steps should be followed: Click on the Measure2 box. Click on one of the available input ports or internal modules to select it as a measurement source. In this example Input A is selected.

  • Page 85: Sample Rate

    SyncWatch User Guide Issue 1.49 Sample rate Can be set to 10 Hz, 1 Hz or 0.1 Hz (i.e. 1 result every 10 seconds). Monitor output The OUT connector can be configured to generate a buffered copy of any internal or external clock source (except E1 2.048 Mbit/s and T1 1.544 Mbit/s).

  • Page 86: Advanced Graphing (Frequency Data Analysis)

    SyncWatch User Guide Issue 1.49 Advanced graphing (Frequency data analysis) Click the Advanced Graphing button in the Frequency Measurement Window. This action takes you to the Advanced Graphing window where multiple TIE and MTIE data can be shown. Tick the appropriate Frequency checkboxes to select the data to be displayed. EXFO Inc.
  • Page 87 SyncWatch User Guide Issue 1.49 EXFO Inc.
  • Page 88 SyncWatch User Guide Issue 1.49 To view the MTIE masks, select the appropriate Mask checkbox. Because MTIE plots have logarithmic axes and TIE plots have linear axes, they cannot be viewed together on the same graph. Click the Customise Masks button to displayed additional masks that can be selected. Select the required mask.
  • Page 89 SyncWatch User Guide Issue 1.49 Select the required mask and click the View… button to view values of the standard and custom masks as displayed in the MTIE Masks Editor window below. Click the New… button in the MTIE Masks window to create a custom mask. Enter mask name and values for the Observation Windows in seconds and the corresponding MTIE values in nanoseconds in the table.

  • Page 90: Esmc Statistics

    SyncWatch User Guide Issue 1.49 ESMC statistics Click the ESMC Statistics button in the Frequency Measurement Window. This action takes you to the ESMC Statistics window as shown below. The ESMC statistics window displays the current QL-value of the ESMC messages that are being received during the SyncE measurement from the connected node.
  • Page 91 SyncWatch User Guide Issue 1.49 The 1PPS - Time of Day window displays the following information: Time Of Arrival The extracted Time of Day value from ToD packet in the format YY-MM-DD HH:MM:SS + the TIE offset of the PPS signal under test wrt the probe's internal GPS module.

  • Page 92: Packet Measurement

    SyncWatch User Guide Issue 1.49 Packet measurement Connect to the probe using SyncWatch SMART as described earlier in this section. Click the Packet Measurement button on the left-hand menu bar. The following window will appear: Click the Probe Info button on the left-hand menu bar. Module 1 will show the version of PTP module installed.

  • Page 93: Ctl611 Ptp Module

    SyncWatch User Guide Issue 1.49 CTL611 PTP Module Click on the Configure button. The following window will appear: Select the required Transmission Protocol: Ethernet - Link layer / Layer 2 or UDP - Transport layer / Layer 3. Select the Communication Mode of operation, Unicast or Multicast. Select the Timing Directions, Both (Frequency and time) or Master to Slave (Frequency only).
  • Page 94 SyncWatch User Guide Issue 1.49 Click Apply to return to the Packet Measurement window. Clicking APPLY will cause the CTL611 PTP module to re-initialize with new settings. This will result in a delay before the measurement commences. Click CANCEL to exit the window without any settings being applied.

  • Page 95: Ctl612 Advanced Sync Module

    SyncWatch User Guide Issue 1.49 CTL612 Advanced Sync Module Click on the Configure button. The following window will appear: Click on the IP Configuration button. The following window will appear: The PTP Client IP Address can be set manually, select Use static IP address. Obtain dynamic IP address will obtain the required IP address from the DHCP Server.
  • Page 96 SyncWatch User Guide Issue 1.49 Enable VLAN if required. Set required VLAN ID (number between 0 and 4095) and VLAN priority (number between 0 and 7) Click OK to return the main configuration window. Set the PTP Mode to Slave. Select the required Transmission Protocol: Ethernet - Link layer / Layer 2 or UDP - Transport layer / Layer 3.
  • Page 97 SyncWatch User Guide Issue 1.49 Definitions of the PTP module status are as follows: Ready: The PTP module (Slave) is waiting for user configuration before it can begin to communicate with the Grandmaster. Calibrating: The PTP module is analyzing the network delays and is beginning to align its time base with that of the Grandmaster.
  • Page 98 SyncWatch User Guide Issue 1.49 The following three graphs show the auto scale feature: The graph above shows packet delay times all clustered around 6 µs. The graph above still shows significant clustering of packets around the 6 µs range. Two packets that experienced more delay have caused the “auto scaling”...
  • Page 99 SyncWatch User Guide Issue 1.49 After two of the ‘outlying’ packets have passed out of the rolling display window the graph again auto scales. This is normal operation. EXFO Inc.

  • Page 100: Packet Statistics

    SyncWatch User Guide Issue 1.49 Packet statistics Click the Packet Statistics button in the Packet Measurement window. Select the required packet stats tab, four types of PTP packet stats can be displayed. They are “Sync”, “Follow up”, “Request/Response” and “Announce” packets. Packet “Timestamps” can also be displayed.
  • Page 101 SyncWatch User Guide Issue 1.49 For each category of PTP message it is possible to see the following information. Total Packets: This is the total number of PTP packets that have been received since the packet measurement began. Out of Sequence: This is the number of the PTP packets that have arrived out of sequence i.e.

  • Page 102: Pdv Distribution Graph

    SyncWatch User Guide Issue 1.49 PDV Distribution Graph Click the PDV Distribution button in the Packet Measurement window. This enables access to the PDV Distribution graph window where multiple packet type line graphs are displayed. A bar chart will be provided as a selectable option in a future release. The line graph has been chosen because it allows the user to more easily view multiple plots than having bars that may obscure another set of bars Tick the appropriate Packet Type checkboxes to select the data to be displayed.

  • Page 103: Display

    SyncWatch User Guide Issue 1.49 Only one comparison data file can be display on the graph. The comparison data can be removed by selecting the Clear button. Display The comparison data and live data can be aligned by ticking the Align Loaded checkbox. The legend of the comparison data will indicate the size of the shift required in microseconds.

  • Page 104: Advanced Graphing (Packet Data Analysis)

    SyncWatch User Guide Issue 1.49 To change the x-axis values: Tick the X-Axis Zoom checkbox and enter the required Left and Right graph values. Select Zoom Now to update the graph. Advanced graphing (Packet data analysis) Click the Advanced Graphing button in the Packet Measurement window. This enables access to the Advanced Graphing window where multiple packet flows are displayed.

  • Page 105: Grand Master Mode

    SyncWatch User Guide Issue 1.49 Grand Master Mode CTL612 Advanced Sync Module Click the Packet Measurement button on the left-hand menu bar. Click on the Configure button. Set the PTP Mode to Grand Master. Click on the IP Configuration button. The following window will appear: The PTP grandmaster IP Address can be set manually, select Use static IP address.
  • Page 106 SyncWatch User Guide Issue 1.49 The following window will appear: Select the required Transmission Protocol: Ethernet - Link layer / Layer 2 or UDP - Transport layer / Layer 3. Select Communication Mode of operation, Unicast or Multicast. Select the Sync Messages Rate from the drop down box - Default 32 pkts/s. Select the Announce Messages Interval from the drop down box - Default 1.
  • Page 107 SyncWatch User Guide Issue 1.49 The Grand Master window shows configuration settings and details of the Slaves that are connected: If the Grand Master configuration is set to Ethernet/ Multicast, information on connected Slaves will not be displayed. PTP systems can use proprietary techniques to create a list of Slaves when in the multicast mode by examining the received PTP delay request messages, if present.

  • Page 108: Load Measurements

    SyncWatch User Guide Issue 1.49 Load measurements Load data from file Previously captured frequency and packet measurement files (created by using “Enable logging”), can be reloaded for viewing and analysis. The picture above shows the SyncWatch log folder that contains folders for the measurements taken by each probe (or session).
  • Page 109 SyncWatch User Guide Issue 1.49 The picture below shows the contents of a measurement folder. EXFO Inc.
  • Page 110 SyncWatch User Guide Issue 1.49 Module Status GPS status check Click the GPS/Rb window LED in the Module Status box. The GPS signal status information will be displayed. A correct GPS signal will show ‘3D’ in the Fix Type, refer to section 6 for additional information.
  • Page 111 SyncWatch User Guide Issue 1.49 Module Reset Probe Informatation Click on the Probe Info button on the left-hand menu bar, the following screen will appear: Click on the Reset button of the module that needs to be reset. A warning message will be displayed if a measurement is in progress.
  • Page 112 SyncWatch User Guide Issue 1.49 EXFO Inc.

  • Page 113: Managed Mode - Operation

    SyncWatch User Guide Issue 1.49 Managed mode – operation The SyncWatch Managed system is able to work in isolation of any other Networks Management Systems (NMS) / Operational Support Systems (OSS) system in an operational network. SyncWatch is however designed to be able to be integrated in to operators’ existing management environment delivering highly valuable sync performance data right into the core of the business.

  • Page 114: Starting A User Session

    SyncWatch User Guide Issue 1.49 Starting a user session Using a web browser such as Internet Explorer or Mozilla Firefox, enter the NetSMART URL or IP address. The user will then be presented with a login screen. Enter a valid email address and password to proceed. The SyncWatch administrator can supply the IP address/URL of NetSMART and manage user accounts.
  • Page 115 SyncWatch User Guide Issue 1.49 After login the following Measurements screen will appear showing a list of all the current measurement profiles on NetSMART: If the user has access to more than one network, the following ‘Networks’ screen will appear: Click on the required network from the list to navigate to the Measurements screen.

  • Page 116: Probes

    SyncWatch User Guide Issue 1.49 Probes It is assumed that the probe has already been configured to operate in Managed mode as described in section 7. Add a probe Click on the Probes button located on the top navigation bar. The following screen will appear showing a list of all the probes currently on NetSMART: Click on the Add a probe link on the top left corner and the following screen will appear: Enter the serial number, license key and hardware variant of the probe and then click the Save...

  • Page 117: Measurement Profiles

    SyncWatch User Guide Issue 1.49 Measurement profiles The term Measurement refers to a configuration profile that can be allocated to a SyncWatch probe. Configure a measurement profile Click on the Edit: Measurements button on the navigation bar. The following screen will appear: Click on the New measurement link in the top left corner.
  • Page 118 SyncWatch User Guide Issue 1.49 Click on this measurement profile. The following screen will appear: Use the drop down menu to select the required probe from the available list. Click the Assign Probe button. EXFO Inc.
  • Page 119 SyncWatch User Guide Issue 1.49 The following screen will appear: The GPS cable delay can be entered in nanoseconds to compensate for timing delays through the GPS cable. The Information dialogue box can be used to add any custom free-text information about the measurement profile.

  • Page 120: Copying An Existing Measurement Profile

    SyncWatch User Guide Issue 1.49 The following screen will appear: The Profile tab shows the current settings of the measurement and reference inputs. A new profile can be created manually or copied from an existing profile. Copying an existing measurement profile To copy an existing profile, use the drop-down menu to select an existing Measurement profile on the server.
  • Page 121 SyncWatch User Guide Issue 1.49 The following screen will appear: Further details of each input must be entered on this screen. The options available will be dependent on the input type chosen. Click on the Review Profile button to view the profile settings. Click on the Submit Changes button to execute these setting.

  • Page 122: Mtie Exception Threshold

    SyncWatch User Guide Issue 1.49 Click on the MTIE tab, the following screen will appear: MTIE exception threshold MTIE Exception Threshold is the limit above which a probe will generate an MTIE exception (alarm event) if the measured MTIE exceeds any point of the mask. Lower thresholds will usually result in more regular exceptions.

  • Page 123: Alarm Notification

    SyncWatch User Guide Issue 1.49 The following screen will appear: Alarm notification NetSMART can send email and SMS alerts every time an alarm event is generated by the SyncWatch probe. Enter email addresses and phone numbers to be alerted in the relevant boxes. Multiple email addresses must be separated by commas.

  • Page 124: Heartbeat Configuration

    SyncWatch User Guide Issue 1.49 Heartbeat configuration Specifies the time and interval at which Heartbeats are to be generated by the probe. The probes communicate to the server when there has been an exception or fault, and at a regular interval dictated by the Heartbeat interval settings.

  • Page 125: Location Maps

    SyncWatch User Guide Issue 1.49 Location maps The position of each SyncWatch probe can be viewed on a Location map. Sub-level maps can be created within a map. To view a map: Click on the Map button located on the navigation bar. The example above shows a map with probes and Location icons on it.

  • Page 126: Replace A Location Map

    SyncWatch User Guide Issue 1.49 Click the Create button to load this map. (This new Location will be added to the left-hand list). To place this Location icon on to a map tick the Allow node movement checkbox. Navigate to the required map, this might be the top-level map or a sub-level map, and then drag and drop the Location icon to the required position on the map.

  • Page 127: Measurements Plots

    SyncWatch User Guide Issue 1.49 Measurements plots View MTIE plots Click on the View: Measurement button located on the top navigation bar. The following ‘Measurements’ screen will appear: This screen shows a list of all the Measurement profiles on NetSMART. Click on the required Measurement profile to view the latest 24 hour MTIE plot at the last probe Heartbeat.

  • Page 128: View Historical Mtie Plots

    SyncWatch User Guide Issue 1.49 View historical MTIE plots Click on the View: Measurement button located on the top navigation bar. Select the required Measurement profile from the list and then click the List all events link below it. The following ‘Events’ screen will appear: This screen shows a list of all the alarm events and Heartbeats.

  • Page 129: View Tie Plots

    SyncWatch User Guide Issue 1.49 To view multiple MTIE plots simultaneously: Select multiple Heartbeat and Exception checkboxes as shown below: View TIE plots Tick the checkbox of any Exception event to view 24 hour TIE plots. The TIE plot will be based on the time the exception was generated.
  • Page 130 SyncWatch User Guide Issue 1.49 Three options are available: Half-hour snapshot: Click this link to request 30 mins of TIE data. The data will take 15mins to be generated; this is so that there is 15mins of TIE data before and after the time the data was requested.

  • Page 131: Alarm And Event

    SyncWatch User Guide Issue 1.49 Alarm and event View alarms To view outstanding alarms on any probe, click on the View: Measurement button located on the top navigation bar. The following Measurements screen will appear: This screen shows a list of all the Measurement profiles on NetSMART. Click on the required Measurement profile to view the outstanding alarms.

  • Page 132: View Historical Alarms

    SyncWatch User Guide Issue 1.49 The diagram below shows the relationship between each alarm state: View historical alarms 1. Click on the View: Measurement button located on the top navigation bar. 2. Select the required Measurement profile from the list and then click the List all events link below it.

  • Page 133: Filter Alarms

    SyncWatch User Guide Issue 1.49 Filter alarms Click the Filter tab. The following screen will appear: Tick the Alarm and Event types to be hidden from the list. EXFO Inc.

  • Page 134: Alarm And Event Types

    SyncWatch User Guide Issue 1.49 Alarm and event types The table below describes all the different types of alarms and events that can be generated by the SyncWatch probe: Event Type Description Heartbeat Heartbeats are events sent by a probe at regular intervals as configured in the location’s personality to inform NetSMART that it is still online and operational.

  • Page 135: Gps Status

    SyncWatch User Guide Issue 1.49 GPS status To check the GPS status of a SyncWatch probe click on the View: Measurement button located on the top navigation bar. Select the required Measurement profile from the list and then click the List all events link below it to navigate to the Events screen.

  • Page 136: User Accounts

    SyncWatch User Guide Issue 1.49 User accounts To manage user accounts click on the Users button located on the top navigation bar. The following ‘Users: List’ screen will appear: Create new account To create a new user account on the server the administrator must enter the user’s email address. This is what they will use to login with.

  • Page 137: Delete Account

    SyncWatch User Guide Issue 1.49 The table below gives a description of each privilege: Privilege Enabled Features Manage Status Acknowledge and clear alarms for locations and events Add event notes Manage Measurements Add, modify and delete measurements Configure MTIE exception threshold mask and select MTIE display masks Configuration for SMS and Email alerts Heartbeat configuration...

  • Page 138: Measurement Performance Statistics

    SyncWatch User Guide Issue 1.49 Measurement performance statistics To view performance statistics for a Measurement: Click on Reports button located on the top navigation bar. The following ‘Reports’ screen will appear: This screen shows a list of all the Measurement profiles. The performance statistics can be viewed individually for each Measurement or for the entire network.

  • Page 139: By Time

    SyncWatch User Guide Issue 1.49 By time To view the performance statistics based on each hour of the day: Click the Time link against the required Measurement or the Entire Network. The following screen will appear: Choose the required start and end dates using the ‘calendar’ icons. The performance statistics graph shows the total number of exceptions for each hour of the day.

  • Page 140: Networks

    SyncWatch User Guide Issue 1.49 Networks Multiple networks can be created on NetSMART. Each network will manage its own set of SyncWatch probes. A probe can only be managed on one network at a time. Create network Only the SyncWatch administrator can create Networks on NetSMART. Once logged in as the SyncWatch administrator, the following screen will appear: If there is only one Network on NetSMART, the Measurement screen will appear instead of the screen above...

  • Page 141: Switch Network

    SyncWatch User Guide Issue 1.49 Switch network A user with access to multiple networks can switch between networks in the following way: 1. Click on the Switch link located on the right-hand side of the top navigation bar. A screen showing a list of all the Networks will appear. 2.

  • Page 142: Add A New Mask

    SyncWatch User Guide Issue 1.49 Add a new mask 1. Type a name between 1 and 64 characters in the left-hand box. Mask names must be unique within a network. 2. Enter the mask values for the given observation periods. 3.

  • Page 143: Snmp - Optional

    SyncWatch User Guide Issue 1.49 SNMP - optional Only the SyncWatch administrator has access to the server setting required to configure the Northbound SNMP. Once logged in as the SyncWatch administrator, the following screen will appear: If there is only one Network on NetSMART, the Measurement screen will appear instead of the screen above 1.
  • Page 144 SyncWatch User Guide Issue 1.49 2. Click on the Server Licenses tab located under the top navigation bar. The following ‘Server: Manage’ screen will appear: 3. Enter ‘snmp’ into the Feature text box. 4. Enter the SNMP License key into the text box. 5.

  • Page 145: Configure Northbound Snmp

    Traps Further details about the SNMP traps sent by NetSMART and the varbinds that they contain can be found in the MIB file located on the server c:\SyncWatch-110\snmp\share\mibs Server configuration SNMP Northbound Interface settings need to be configured on the ‘Server: Manage’ screen.
  • Page 146 SyncWatch User Guide Issue 1.49 7. Enter the SNMP target port: text entry (default value is 162 - standard SNMP trap receiving port). 8. Select Add to save the configuration to the SNMP Target List. 9. Repeat steps 6, 7 and 8 to add multiple SNMP targets. EXFO Inc.

  • Page 147: Firmware Upgrade

    SyncWatch User Guide Issue 1.49 Firmware upgrade 1. Click on the Probes button, located on the top navigation bar. The following screen will appear showing a list of all the probes currently on NetSMART: 2. Tick the probed to be upgraded. Either load a new firmware file by clicking the Browse button or select an existing firmware file from the drop-down menu.
  • Page 148 SyncWatch User Guide Issue 1.49 EXFO Inc.

  • Page 149: Maintenance

    SyncWatch User Guide Issue 1.49 Maintenance Probe firmware upgrade USB mode The probe firmware can be upgraded via a USB stick. Follow the procedures below: 1. Name the required firmware as syncwatch-usb-upgrade.bin and save it in the root directory of the USB stick. 2.

  • Page 150: Calibration Procedure (Via Gps)

    SyncWatch User Guide Issue 1.49 Calibration procedure (via GPS) 1. Connect a SyncWatch GPS antenna to the GNSS port using the procedure described in section 6. 2. Start a measurement on the probe by following the steps applicable to the probe’s mode of operation.

  • Page 151: Troubleshooting

    SyncWatch User Guide Issue 1.49 Troubleshooting SMART: Connection times out - Changing the system clock whilst connected to a SyncWatch probe will force the connection to drop. SMART: Initialization Error - If an initialization error appears referring to ‘delay adjustment values’, delete the file "%UserProfile%\My Documents\SyncWatchSMART\sys\settings.ini"...
  • Page 152 SyncWatch User Guide Issue 1.49 EXFO Inc.

  • Page 153: Advanced Results Analysis

    SyncWatch User Guide Issue 1.49 Advanced results analysis Measurement results files generated by the SyncWatch probe during any mode of operation can be analyzed using the SyncWatch SMART software. Further in-depth analysis of these results files can be done using the Time Monitor Analyzer software. Key features of the Time Monitor Analyzer: ...
  • Page 154 SyncWatch User Guide Issue 1.49 EXFO Inc.

  • Page 155: Specifications

    SyncWatch User Guide Issue 1.49 Specifications Probe measurement inputs  General purpose frequency inputs: (justify to the left, do same for others).  Frequencies between 64 KHz and 200 MHz in 8 KHz steps.  1, 5 or 10 MHz. ...

  • Page 156: Probe Management Interfaces

    SyncWatch User Guide Issue 1.49 Probe management interfaces  10/100 BaseT on RJ45.  RS232 on DE9 connector.  (Optional) GSM/GPRS 850/900/1800/1900 MHz modem.  USB Maintenance connector for re-flash (return to base). Probe power supply  40 to -72 VDC including all tolerances. ...

  • Page 157: Syncwatch Smart Software

    SyncWatch User Guide Issue 1.49  Electrical  Finisar FCMJ-8251-3  Avago ACBU-5710-RZ SyncWatch SMART software Platform requirements  Operating Systems: Windows Server 2008 R2; Windows XP; Windows 7*.  Related software: Microsoft.NET Framework 3.5 or later.  Processor: 1 GHz Pentium processor or equivalent (Minimum); 2 GHz Pentium processor or equivalent.

  • Page 158: Netsmart Software

    SyncWatch User Guide Issue 1.49 NetSMART software Platform requirements  Operating Systems: Windows® 2000 SP4, XP, Vista.  Related software: Microsoft.NET Framework 3.5.  Processor: Pentium IV 2.0 GHz or higher.  RAM: 512 MB or higher.  Hard disk: 6 GB or higher. ...

  • Page 159: Contacting The Technical Support Group

    SyncWatch User Guide Issue 1.49 Contacting the Technical Support Group To obtain after-sales service or technical support for this product, contact EXFO at one of the following numbers. The Technical Support Group is available to take your calls from Monday to Friday, 8:00 a.m.
  • Page 160 SyncWatch User Guide Issue 1.49 EXFO Inc.

  • Page 161: Warranty

    SyncWatch User Guide Issue 1.49 Warranty General information EXFO Inc. (EXFO) warrants this equipment against defects in material and workmanship for a period of one year or from the date of original shipment. EXFO also warrants that this equipment will meet applicable specifications under normal use. During the warranty period, EXFO will, at its discretion, repair, replace, or issue credit for any defective product, as well as verify and adjust the product free of charge should the equipment need to be repaired or if the original calibration is erroneous.

  • Page 162: Liability

    SyncWatch User Guide Issue 1.49 Liability EXFO shall not be liable for damages resulting from the use of the product, nor shall be responsible for any failure in the performance of other items to which the product is connected or the operation of any system of which the product may be a part.

  • Page 163: Exfo Service Centers Worldwide

    SyncWatch User Guide Issue 1.49 After repair, the equipment will be returned with a repair report. If the equipment is not under warranty, you will be invoiced for the cost appearing on this report. EXFO will pay return-to- customer shipping costs for equipment under warranty. Shipping insurance is at your expense. Routine recalibration is not included in any of the warranty plans.
  • Page 164 SyncWatch User Guide Issue 1.49 EXFO Inc.
  • Page 165 SyncWatch User Guide Issue 1.49 Appendix A 1 PPS and TOD Signal Specifications This appendix provides electrical specifications for 1PPS and TOD input signals. 1PPS+TOD Timing relationship between 1 PPS and TOD Transmission of a TOD message starts 1 ms after the rising edge of 1 PPS signal, and the tramission is completed within 500 ms, as shown in Figure A-1.
  • Page 166 SyncWatch User Guide Issue 1.49 Figure A1 – Timing relationship between 1 PPS & TOD for 1 PPS+TOD signals Frame Header Message Header Length SYNC SYNC LENGTH CHAR CHAR CLASS Payload (Big Endian) Check Sum Figure A2 –TOD frame structure for 1 PPS+TOD signals EXFO Inc.
  • Page 167 SyncWatch User Guide Issue 1.49 Field Name Field Length Description Part of Frame Header 0x43 = ASCII character “C” Sync Char 1 1 byte Part of Frame Header 0x4D = ASCII character “M” Sync Char 2 1 byte Class 1 byte Basic classification of TOD message 1 byte Serial number of TOD message...
  • Page 168 SyncWatch User Guide Issue 1.49 Byte Data Name Units Notes Offset Type Time Week GPS second time of week seconds (TOW) Reserved Reserved GPS week (GPS time), 16 bits Week number Whole weeks since 1980-01-06 LeapS seconds Leap Seconds (GPS-UTC) 0x00 = normal 0x01 Time...
  • Page 169 SyncWatch User Guide Issue 1.49 Byte Data Type Name Units Notes Offset Clock source type 0x00 = Beidou 0x01 = GPS 0x02 = IEEE-1588 0x03 = Other Status of the clock GPS fix type, range = 0 to 3 source 0x00 = No fix 0x01 = Dead reckoning only 0x02 = 2D fix...
  • Page 170 SyncWatch User Guide Issue 1.49 Size Short Type Range Resolution Comments (bytes) Unsigned Char 0 to 255 2’s complement Signed Char -128 to 127 Unsigned 0 to 65535 Short 2’s complement Signed Short -32768 to 32767 Unsigned 0 to 4,294,967,295 Long 2’s complement Signed Long...

  • Page 171: Rohs Statement

    SyncWatch User Guide Issue 1.49 ROHS statement EXFO Inc.
  • Page 172 SyncWatch User Guide Issue 1.49 EXFO Inc.
  • Page 173 P/N:1067824 www.EXFO.com - info@exfo.com CORPORATE HEADQUARTERS 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA Tel.: 1 418 683-0211 · Fax: 1 418 683-2170 EXFO AMERICA 3400 Waterview Parkway Suite 100 Richardson, TX 75080 USA Tel.: 1 972-761-9271 · Fax: 1 972-761-9067 EXFO EUROPE Winchester House, Chandlers Ford, Hampshire S053 4DG ENGLAND...

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