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Viavi MTS-5800 User Manual

Timing expansion module (tem)
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T-BERD/MTS 5800
Timing Expansion Module
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  • Page 1 T-BERD/MTS 5800 Timing Expansion Module User Manual...
  • Page 3 T-BERD/MTS 5800 Timing Expansion Module User Manual Viavi Solutions 1-844-GO-VIAVI www.viavisolutions.com...
  • Page 4 Copyright/Trademarks © Copyright 2017 Viavi Solutions Inc. All rights reserved. No part of this guide may be reproduced or transmitted, electronically or otherwise, without written permission of the publisher. Viavi Solutions and the Viavi logo are trademarks of Viavi Solutions Inc.
  • Page 5 • Consult the dealer or an experienced radio/TV technician for help. In order to maintain compliance with the limits of a Class A digital device Viavi requires that quality interface cables be used when connecting to this equipment. Any changes or modifications not expressly approved by Viavi could void the user's authority to operate the equipment.
  • Page 6 It is the responsibility of the equipment owner to return equipment and batteries to Viavi for appropriate disposal. If the equipment or battery was imported by a reseller whose name or logo is marked on the equipment or battery, then the owner should return the equipment or battery directly to the reseller.

  • Page 7: Table Of Contents

    Contents About this Guide Purpose and scope ............... ii Assumptions .
  • Page 8 Contents Action Buttons ............... 17 Result Buttons .
  • Page 9 Contents Measuring TIE and calculating MTIE/TDEV ..........42 Analyzing 1PPS wander .
  • Page 10 ............75 Returning equipment to Viavi .
  • Page 11 About this Guide This preface explains how to use this User Manual. Topics discussed in this chapter include the following: • “Purpose and scope” on page ii • “Assumptions” on page ii • “Terminology” on page ii • “Related Information” on page iii •...

  • Page 12: Purpose And Scope

    Terminology The T-BERD 5800 is branded as the MTS-5800 in Europe, and it is interchangeably referred to as the T-BERD 5800, MTS 5800, MTS-5800, MTS5800 and Media Test Set 5800 throughout supporting documentation.

  • Page 13: Related Information

    Satellite System (GNSS) based clock or other precise sources. • Viavi Ethernet test set — A test set marketed by Viavi and designed to transmit an Acterna Test Packet (ATP) payload. These packets carry a time stamp used to calculate a variety of test results. The FST-2802 TestPad, the SmartClass Ethernet tester, the HST with an Ethernet SIM, the T-BERD/MTS 8000 Transport Module, the T-BERD/MTS 6000A MSAM, and the T-BERD ⁄...
  • Page 14 About this Guide Conventions Table 1 Text formatting and other typographical conventions Item(s) Example(s) Buttons, keys, or switches that Press the On button. you press or flip on a physical – Press the Enter key. device. – Flip the Power switch to the on position. Buttons, links, menus, menu Click Start options, tabs, or fields on a PC-...
  • Page 15 About this Guide Conventions Table 2 Symbol conventions This symbol indicates a note that includes important supplemental infor- mation or tips related to the main text. This symbol represents a general hazard. It may be associated with either a DANGER, WARNING, CAUTION, or ALERT message. See Table 3 more information.

  • Page 16: Safety And Compliance Information

    Safety and compliance information for the 5800v2 test instrument and the TEM Module are provided in the printed T-BERD ⁄ MTS 5800 Safety Information document that shipped with the instrument or module. Technical assistance If you require technical assistance, call 1-844-GO-VIAVI. For the latest TAC informa- tion, go to http://www.viavisolutions.com/en/services-and-support/support/technical- assistance.

  • Page 17: Overview

    Overview Chapter 1 This chapter provides a general description of each of the TEM Module. Topics discussed in this chapter include the following: • “About the TEM Module” on page 2 • “Features and capabilities” on page 2 • “What ships with the TEM Module?” on page 3 •...

  • Page 18: About The Tem Module

    Chapter 1 Overview About the TEM Module About the TEM Module The TEM Module provides a stable, highly accurate timing reference for the T-BERD / MTS 5800v2, and the ability to conduct synchronized timing tests across multiple instruments with the support of a Global Navigation Satellite System (GNSS) and an internal rubidium oscillator.

  • Page 19: What Ships With The Tem Module

    Chapter 1 Overview What ships with the TEM Module? • Satellite Based Augmentation Systems (SBAS). SBAS can be used in combina- tion with GPS, GLONASS, or BeiDou GNSS systems to improve the availability of satellites during surveys of areas with poor satellite visibility. In the future, QZSS augmentation will also be supported for satellite constellations in Japan and Australia.

  • Page 20: Unpacking The Components

    When transporting the TEM Module and 5800v2 in a powered on state, Viavi strongly recommends only using the optional glove bag to transport the assembled test instrument. The standard bag should not be used.

  • Page 21: Exploring The Tem Module Connector Panel

    Chapter 1 Overview Exploring the TEM Module connector panel Exploring the TEM Module connector panel The connector panel of the TEM Module provides the connectors used to obtain timing information from an external timing source (for example, a 1 PPS or 10MHz reference clock), and to provide an external reference clock to another device during testing.
  • Page 22 Chapter 1 Overview Exploring the TEM Module connector panel SMB connectors - 10 MHz input and output Two additional SMB connectors are provided on the connector panel for 10 MHz input and output (labeled 10 MHz OUT and 10 MHz REF IN). The connector labeled 10 MHz OUT can be used to provide an external, disciplined 10MHz timing reference to other instruments, and emulate an accurate master 10MHz clock.

  • Page 23: Getting Started

    Getting Started Chapter 2 This chapter explains how to connect the TEM Module to your instrument, how to connect a GNSS antenna (if you are using GNSS timing as your synchronization source), and how to navigate the user interface. Topics discussed in this chapter include the following: •...

  • Page 24: Connecting The Tem Module To Your Test Instrument

    Chapter 2 Getting Started Connecting the TEM Module to your test instrument Connecting the TEM Module to your test instrument Before connecting your new TEM Module to a T-BERD ⁄ MTS 5800: • Verify that the instrument is a 5800v2 by checking the label on the back panel of the instrument, which will indicate whether or not it is a 5800v2.
  • Page 25 Chapter 2 Getting Started Connecting the TEM Module to your test instrument Locate the hinges on the TEM Module. Insert the hinges into the 5800v2 at about a 45 to 60 degree angle. Pivot the module down towards the connector. T-BERD/MTS 5800 Timing Expansion Module User Manual July 2017 22112315, Rev.

  • Page 26: Connecting A Gnss Antenna

    LEDs, results, and action buttons that are associated with the TEM module. Connecting a GNSS antenna A Viavi qualified GNSS antenna ships with each TEM Module. The cable is 3 meters long, and the antenna is equipped a magnetic base and a male SMA connector.

  • Page 27: Powering The Tem Module

    • When transporting the TEM Module to a test location after the oscillator has warmed up and tuned, Viavi recommends using an optional power inverter for the duration of the trip. To discuss the various power adapters and inverters available for the 5800v2, contact Viavi Customer Care, or contact Viavi via the company web site,www.viavisolu-...

  • Page 28: Verifying That You Have The Correct Adapter

    Chapter 2 Getting Started Powering the TEM Module Verifying that you have the correct adapter Figure 2 shows the label on the adapter that ships with T-BERD / MTS 5800v2 test instruments. This adapter must be used to provide power to the 5800v2 instrument and connected TEM Module.

  • Page 29: Turning On The Instrument

    Chapter 2 Getting Started Verifying the local time zone For power specifications, see the Getting Started Guide that shipped with your instru- ment. Turning on the instrument To power the instrument • Press the ON/OFF key. The On LED, located on the front panel, illuminates green when the unit is powered, and the instrument beeps.

  • Page 30: Turning On The Rubidium Oscillator

    Chapter 2 Getting Started Turning on the Rubidium Oscillator To verify the time zone Select the SYSTEM/HOME icon. The System screen appears. Select Date and Time. Review, and, if necessary, specify the Region, Country, and Area. The time zone has been verified. Turning on the Rubidium Oscillator By default, the TEM Module’s Rubidium Oscillator is off when you turn on your test instrument.

  • Page 31: Navigating The Tem Module User Interface

    Chapter 2 Getting Started Navigating the TEM Module user interface Table 4 Oscillator Modes (Continued) Mode Description Wait for 1PPS The TEM Module is waiting for a valid 1PPS signal from the specified synchronization source. Coarse Tune The oscillator is beginning to tune to the frequency for the synchronization source that you specified when you configured the oscillator.

  • Page 32: Timing Module Tab

    Chapter 2 Getting Started Navigating the TEM Module user interface provided to and by the module. Figure 4 shows the Timing Module tab when the module is configured to use a GNSS synchronization source. Figure 4 Main screen (Timing Module, GNSS Synchronization Source) For a detailed description of the UI elements on the 5800v2 user interface, refer to the Getting Started Guide that shipped with your instrument.

  • Page 33: Setup/Results Soft Key

    Chapter 2 Getting Started Navigating the TEM Module user interface Setup/Results soft key The Setup soft key located on the right side of the UI provides quick access to the screen and the setup tabs that you use to configure the TEM Module. After configuring the module, use the Results soft key to return to the Timing Module tab on the Main screen.

  • Page 34: Result Buttons

    Chapter 2 Getting Started Navigating the TEM Module user interface Figure 5 illustrates the buttons with the oscillator turned on and warming up. NOTE: The color of a button reflects its current state. Action buttons are highlighted in yellow when they are turned on; they are grey when they are off. Result Buttons Group and Category buttons are provided at the top of each result window.

  • Page 35: Turning Off The Rubidium Oscillator

    Chapter 2 Getting Started Turning off the Rubidium Oscillator Turning off the Rubidium Oscillator To turn off the oscillator • Press the yellow Rubidium Osc. On action button. The action button turns grey, and the text on the button changes to Rubidium Osc. Off. Turning off the instrument To turn off the instrument •...

  • Page 36: Disconnecting The Tem Module

    Chapter 2 Getting Started Disconnecting the TEM Module Disconnecting the TEM Module To disconnect the TEM Module from your instrument Verify that power is OFF on your instrument and that the AC power adapter is unplugged. Turn the instrument over so the display is facing downwards, and the back panel of the module is facing upwards.

  • Page 37: High Accuracy Timing

    igh Accuracy Timing Chapter 3 This chapter explains how to setup and configure the TEM Module for use as a high accuracy timing reference during testing. Topics discussed in this chapter include the following: • “Basic timing principles” on page 22 •...

  • Page 38: Basic Timing Principles

    Chapter 3 High Accuracy Timing Basic timing principles Basic timing principles The TEM Module is designed to provide a stable, highly accurate timing reference when performing tests that require: • The precise synchronization of multiple test instruments; • High accuracy wander analysis, •...

  • Page 39: Available Survey Modes

    The TEM Module ships with a default Antenna Bias value of 28, which is the optimal value for the Viavi supplied antenna. If you are using a different antenna, you should calculate the cumulative delay introduced by 1) the antenna, 2) the antenna’s cable, and if applicable, 3) any in-line splitter or amplifier, then change the Antenna Bias value on the GNSS setup tab.

  • Page 40: Fixed Position Mode

    Chapter 3 High Accuracy Timing Basic timing principles Fixed position mode If the values that the TEM Module’s GNSS receiver currently has in memory for position and altitude are correct and your instrument will remain in the same location, you do not need to conduct a survey.

  • Page 41: External 1 Pps And 10 Mhz Timing

    Chapter 3 High Accuracy Timing Basic timing principles page 30) and perform a short survey to generate accurate coordinates (see “Surveying GNSS constellations” on page 34). NOTE: The TEM Module provides the highest degree of accuracy and stability when it is operated with a connected GNSS antenna and with an accurate Antenna Time Bias setting and in fixed timing mode;...

  • Page 42: Common Test Applications

    PTP Delay To accurately measure PTP delay, you must either use two precisely synchronized Viavi Ethernet test instruments that are optioned and configured for PTP testing, or one test instrument synchronized to a PTP Master (for example, a Grandmaster or Boundary Clock).

  • Page 43: Ptp Delay Symmetry

    To accurately measure one way delay, you must use two precisely synchronized Viavi Ethernet test instruments that are optioned and configured for one way delay testing.

  • Page 44: Warming Up The Oscillator

    Chapter 3 High Accuracy Timing Warming up the oscillator The TEM Module’s oscillator, when tuned to a highly accurate synchronization source, can be used as a precise reference clock when analyzing wander or jitter on the 5800v2 test instrument. Specific applications include: •...

  • Page 45: Configuring The Module

    Chapter 3 High Accuracy Timing Configuring the module TEM Module to leave the oscillator off by default, you must manually turn the oscillator on to allow it to warm up. To turn the oscillator on • Press the grey Rubidium Osc. Off action button on the Timing Module tab. The button turns yellow, and states Rubidium Osc.

  • Page 46: Specifying Gnss Settings

    Chapter 3 High Accuracy Timing Configuring the module In Sync Source, select the synchronization source to be used to tune the TEM Module’s rubidium oscillator. – If you want the module to use GNSS timing, verify that you have connected a GNSS antenna (see “Connecting a GNSS antenna”...

  • Page 47: Specifying Location Settings

    (another device is providing power to the antenna), or you are using a special low-power antenna, select 0. The default Antenna Time Bias value is 28 (the optimal value for the Viavi qualified antenna). If you are using a different antenna, determine the optimal bias value by referring to the vendor specifications for the antenna (and, if applicable, splitter or amplifier), then specify the bias value in nanoseconds.

  • Page 48: Fixed Position Settings

    Each selectable survey mode is auto- matically associated with a specific duration and survey position accuracy. For optimal timing performance, Viavi recommends conducting surveys for at least 12 to 24 hours. Satellites complete two orbits per day; therefore, a survey of at least 12 hours will provide data from an entire constellation.

  • Page 49: Saving Location Coordinates

    Chapter 3 High Accuracy Timing Configuring the module on the Location tab to indicate that a survey does not need to be conducted. In this mode, precise timing can be maintained from the signal received from a single satellite. NOTE: The specified Fixed Position Accuracy value must be reasonably accurate or performance may be degraded.

  • Page 50: Surveying Gnss Constellations

    Chapter 3 High Accuracy Timing Surveying GNSS constellations Surveying GNSS constellations After specifying survey settings (as described in “Survey settings” on page 31), you are ready to start the survey. To start the survey Press the grey Start Survey action button on the Timing Module tab of the Main screen.

  • Page 51: Tuning To An External Reference Clock Or Signal

    Chapter 3 High Accuracy Timing Forcing the oscillator into holdover mode Tuning to an external reference clock or signal If you are using an external 1 PPS or 10 MHz reference signal as the synchronization source, you must provide the signal to the TEM Module via the appropriate input connector on the module’s connector panel (see “Exploring the TEM Module connector panel”...

  • Page 52: Qualifying Gnss Antennas

    Chapter 3 High Accuracy Timing Qualifying GNSS antennas mode, or fine tune, which provides the best accuracy when testing for a prolonged period of time. NOTE: The oscillator should be placed into holdover mode before removing the reference signal for a synchronization source. If you do not place the oscillator into holdover mode before removing the signal, tuning may be adversely impacted.
  • Page 53 Chapter 3 High Accuracy Timing Qualifying GNSS antennas If the signal strength for the satellites used is “40 or higher,” you can conclude that the antenna is in the optimal location. For details concerning the supporting results, see “Signal Strength” on page 54 of this manual.
  • Page 54 Chapter 3 High Accuracy Timing Qualifying GNSS antennas T-BERD/MTS/SC Timing Expansion Module User Manual Page 38 22112315, Rev. 004 July 2017...

  • Page 55: 1Pps Wander Analysis

    1PPS Wander Analysis Chapter 4 This chapter provides step-by-step instructions for analyzing 1PPS wander using the TEM Module. Topics discussed in this chapter include the following: • “About 1PPS wander analysis” on page 40 • “Impact on oscillator tuning” on page 41 •...

  • Page 56: About 1Pps Wander Analysis

    Chapter 4 1PPS Wander Analysis About 1PPS wander analysis About 1PPS wander analysis If your TEM Module optioned to do so, you can place it into 1PPS Analysis mode, then use it to perform highly accurate wander analysis of a 1PPS signal by measuring the Time Interval Error (TIE) and calculating the Maximum Time Interval Error/Time Devia- tion (MTIE/TDEV) on the TEM itself.

  • Page 57: Impact On Oscillator Tuning

    Chapter 4 1PPS Wander Analysis Impact on oscillator tuning cates that the module is in 1PPS Analysis mode, and that the oscillator has been placed into Holdover mode. Figure 7 1 PPS Analysis LEDs Impact on oscillator tuning If the TEM oscillator has reached Fine Tune mode, after you put the TEM into 1 PPS Analysis mode the oscillator is automatically placed into Holdover mode.

  • Page 58: Measuring Tie And Calculating Mtie/Tdev

    Chapter 4 1PPS Wander Analysis Measuring TIE and calculating MTIE/TDEV be lost too. If you want use a GNSS tuned oscillator to perform measurements at a loca- tion without a GNSS synchronization source, you must use the 1 PPS OUT connector on the TEM to provide the GNSS derived reference signal to the 1 PPS IN 1 connector.
  • Page 59 Chapter 4 1PPS Wander Analysis Measuring TIE and calculating MTIE/TDEV Under Mode, select 1PPS Analysis, then specify the source of the reference timing signal: – If you want to use an external 1PPS reference clock: Select 1 PPS IN 1. In Differential Time Bias, specify the time difference between the refer- ence 1 PPS IN 1 and the analyzed 1 PPS IN 2 input in nanoseconds.

  • Page 60: Analyzing 1Pps Wander

    Chapter 4 1PPS Wander Analysis Analyzing 1PPS wander TIE is measured, and MTIE/TDEV is calculated. To view the supporting results, display the 1 PPS Analysis category. Analyzing 1PPS wander After you accumulate TIE data, you can analyze the data for wanter using the On-board Wander Analysis tool.
  • Page 61 Chapter 4 1PPS Wander Analysis Analyzing 1PPS wander If you want to observe the frequency offset curve, clear the Remove Offset checkbox. To select the data curve to observe, under Curve Selection, do one of the following: – To observe both TIE and frequency offset data curves, select Both Curves. –...

  • Page 62: Saving And Exporting Tie Measurement Data

    The TIE data is saved. NOTE: The Viavi offline analysis tool can only analyze .hrd files. To export the TIE data to a USB memory key Insert a USB memory key into one of the two slots provided on the top panel of the base unit.
  • Page 63 Chapter 4 1PPS Wander Analysis Saving and exporting TIE measurement data Supported ToD formats for the DUT include NMEA GPZDA and ITU-T Draft G.8271. T-BERD/MTS 5800 Timing Expansion Module User Manual July 2017 22112315, Rev. 004 Page 47...
  • Page 64 Chapter 4 1PPS Wander Analysis Saving and exporting TIE measurement data T-BERD/MTS 5800 Timing Expansion Module User Manual Page 48 22112315, Rev. 004 July 2017...

  • Page 65: Timing And 1 Pps Analysis Results

    Timing and 1 PPS Analysis Results Chapter 5 This chapter describes the groups, categories and results that are available when tuning the TEM Module oscillator for use as a high accuracy timing reference or performing 1 PPS wander analysis. Topics discussed in this chapter include the following: •...

  • Page 66: About Tem Module Timing And 1 Pps Analysis Results

    Chapter 5 Timing and 1 PPS Analysis Results About TEM Module timing and 1 PPS analysis results About TEM Module timing and 1 PPS analysis results If an optional TEM Module is connected to your instrument, LEDs and results associ- ated with timing are provided when the Timing Module tab is selected.

  • Page 67: Gnss Leds

    Chapter 5 Timing and 1 PPS Analysis Results Event Log Table 6 Oscillator LEDs TEM Mode Indicates 1 PPS Analysis Ref CLK Valid Green – A valid reference clock is present. Grey – A valid reference clock is not present. Input CLK Valid Green –...

  • Page 68: Satellite Results

    Chapter 5 Timing and 1 PPS Analysis Results Satellite Results and duration. Table 8 provides a sample Event Log for the TEM Module as the oscillator tunes to the Internal GNSS receiver. Figure 8 Sample Event Log, GNSS Synchronization Source If the TEM is in 1PPS analysis mode, the event log reports an event each time the analyzed 1PPS signal exceeds a value specified for an enabled threshold.

  • Page 69: Sky Plot

    Chapter 5 Timing and 1 PPS Analysis Results Satellite Results Sky Plot The Sky Plot (shown in Figure 9) illustrates the satellites that were identified using the GNSS receiver attached to the TEM Module. The ID is provided for each satellite, and colors are used to indicate the satellite’s status (No Signal, Signal, Ready, or Used).

  • Page 70: Signal Strength

    Chapter 5 Timing and 1 PPS Analysis Results Satellite Results Table 8 Satellite Status (Continued) Color Status Indicates Green Used The signal from the satellite is being used to provide GNSS timing. Signal Strength The signal strength for each received channel for used satellites is illustrated graphi- cally in the signal strength category, and represents the Carrier to Noise Ratio (C/No or CNO) on a scale of 0 to 50, with 50 representing the optimal signal strength.

  • Page 71: Gnss Results

    Chapter 5 Timing and 1 PPS Analysis Results GNSS Results as well. The CNO Sky Plot test is an easy way to determine what the GNSS receiver will be able to see given the antenna location. The test will take 6-8 hours but the data it produces will enable planners to determine if GNSS antennas are in a good location or if they need to be moved to roll out advanced services.

  • Page 72: Status

    Chapter 5 Timing and 1 PPS Analysis Results GNSS Results Status The Status category provides general information concerning the GNSS satellites reported in the almanac and the TEM Module’s GNSS receiver. Table 9 describes the Status results. Table 9 Status results Result Definition Fix Type...

  • Page 73: Time

    Chapter 5 Timing and 1 PPS Analysis Results GNSS Results Table 10 Location results (Continued) Result Definition Latitude (deg) Longitude determined using either the GNSS receiver’s triangulation algorithm (in degrees), or entered manually when configuring the module. Depending on the location, this may be a positive or negative value.

  • Page 74: Oscillator Results

    Chapter 5 Timing and 1 PPS Analysis Results Oscillator Results Table 11 Time results (Continued) Result Definition GPS Time Valid Indicates whether the GPS time is valid per the timing information received by the GPS receiver. Leap Seconds Displays the leap seconds. Local Time Displays the local time which is derived from the time zone with respect to GNSS time.

  • Page 75: Pps Analysis Results

    Chapter 5 Timing and 1 PPS Analysis Results 1 PPS Analysis Results Table 12 Oscillator Status results (Continued) Result Definition Oscillator Mode The current mode of the oscillator (Warm Up, Coarse Tune, Fine Tune, or Holdover). 1 PPS Analysis Results The 1PPS Analysis category provides results describing the offset analyzed signal as compared to the reference signal.
  • Page 76 Chapter 5 Timing and 1 PPS Analysis Results ToD Results T-BERD/MTS 5800 Timing Expansion Module User Manual Page 60 22112315, Rev. 004 July 2017...

  • Page 77: Chapter 6 Troubleshooting

    Troubleshooting Chapter 6 This chapter describes how to identify and correct issues related to the operation of the TEM Module. Topics discussed in this chapter include the following: • “About troubleshooting” on page 62 • “Assembly and setup” on page 62 •...

  • Page 78: Troubleshooting About Troubleshooting

    Chapter 6 Troubleshooting About troubleshooting About troubleshooting If you experience problems using your instrument, you may be able to solve these prob- lems on your own after referring to this section. If you experience significant problems with the module, call the Technical Assistance Center (see “Technical assistance”...

  • Page 79: No Gnss Time Is Detected

    Chapter 6 Troubleshooting Performing tests No GNSS Time is detected There are several reasons why GNSS time may not be detected: • Verify that the GNSS antenna is properly connected (see “Connecting a GNSS antenna” on page 10), and that the antenna power level specified is correct for the antenna that you are using (see “Specifying GNSS settings”...

  • Page 80: Application Does Not Appear On The Test Menu

    Chapter 6 Troubleshooting Maintaining your TEM Module Application does not appear on the Test menu Verify that all required test options are installed on your 5800v2 test instrument. For example, if you are using the TEM Module to provide high accuracy timing during PTP or One Way Delay testing, verify that the associated test option has been installed.

  • Page 81: Does The Module Need To Be Calibrated

    Chapter 6 Troubleshooting Maintaining your TEM Module Does the module need to be calibrated? The TEM Module does not need to be calibrated; every time rubidium oscillator is tuned to a high accuracy synchronization source, the oscillator is disciplined. T-BERD/MTS 5800 Timing Expansion Module User Manual July 2017 22112315, Rev.
  • Page 82 Chapter 6 Troubleshooting Maintaining your TEM Module T-BERD/MTS 5800 Timing Expansion Module User Manual Page 66 22112315, Rev. 004 July 2017...

  • Page 83: Appendix A Specifications

    Specifications Appendix A This appendix contains specifications for the TEM Module. Topics discussed in this appendix include the following: • “About the TEM Module specifications” on page 68 • “Physical specifications” on page 68 • “Environmental specifications” on page 68 •...

  • Page 84: About The Tem Module Specifications

    Appendix A Specifications About the TEM Module specifications About the TEM Module specifications Refer to the following sections for specifications for the TEM Module and rubidium oscil- lator: • “Physical specifications” on page 68 • “Environmental specifications” on page 68 •...

  • Page 85: Power Specifications

    Appendix A Specifications Power specifications Power specifications Power is provided to the TEM Module by the connected 5800v2 test instrument. Battery life varies depending on the type and duration of the tests that you conduct; the 5800v2 may also be powered using the AC Adapter that shipped with the test instrument. Connector specifications The TEM Module connector panel provides an SMA connector for a GNSS Antenna, and five SMB connectors for 1 PPS and 10 MHz input and output signals.

  • Page 86: Performance Specifications

    Appendix A Specifications Performance specifications Performance specifications Table 18 Table 19 provide GNSS and time performance specifications. GNSS specifications Table 18 lists GNSS performance specifications. Table 18 Performance (GNSS) specifications Specification Description Receiver Type 72-channel – GPS L1C/A – GLONASS L1OF –...

  • Page 87: Oscillator Specifications

    Appendix A Specifications Oscillator specifications Oscillator specifications Table 20 lists phase noise specifications for the TEM Module’s Rubidium Oscillator. Table 20 Rubidium Oscillator specifications Specification Description Phase Noise - 1 Hz <-70 dBc - 10 Hz <-87 dBc - 100 Hz <-114 dBc - 1 kHz <-130 dBc...
  • Page 88 Appendix A Specifications 1 PPS Analysis specifications T-BERD/MTS 5800 Timing Expansion Module User Manual Page 72 22112315, Rev. 004 July 2017...

  • Page 89: Appendix B Storage And Shipment

    “Storing the instrument and module” on page 74 • “Transporting your TEM Module” on page 74 • “Shipping your TEM Module” on page 75 • “Returning equipment to Viavi” on page 75 T-BERD/MTS 5800 Timing Expansion Module User Manual July 2017 22112315, Rev. 004 Page 73...

  • Page 90: Storing The Instrument And Module

    Store the battery in a cool, dry, clean environment. Do not leave the battery in a car or truck, particularly during extremely warm weather. While out of the instrument, the battery will discharge at a slow rate. Viavi recommends checking the battery periodically while it is in storage, and keeping it charged to at least 40%.

  • Page 91: Shipping Your Tem Module

    NOTE: Viavi is not liable for any damage that may occur during shipping. Returning equipment to Viavi Before you return any equipment to Viavi, contact Viavi Customer Care at 1-844-GO- VIAVI or www.viavisolutions.com for the correct shipping address and for a Return or Reference Authorization.
  • Page 92 Returning equipment to Viavi Clearly mark the outside of the package with the Viavi-issued Return or Reference Authorization number and ship it prepaid and insured to Viavi. For information on pack- aging equipment for shipment, see “Packing the components” on page...

  • Page 93: Glossary

    Glossary Symbols/Numerics 10 MHz — 10 Megahertz timing reference. The TEM Module provides one 10 MHz input connectors and one 10 MHz output connector. 1 PPS — 1 Pulse Per Second timing reference. The TEM Module provides two 1 PPS input connectors and one 1 PPS output connector.
  • Page 94 Glossary BERT — Bit error rate test. A known pattern of bits is transmitted, and errors received are counted to figure the BER. The Bit Error Rate test is used to measure transmission quality. BITS — Building Integrated Timing Supply. C/No —...
  • Page 95 Glossary Frequency stabilization — The process of tuning an oscillator to a specific frequency for a period of time sufficient to ensure that the oscillator provides a stable timing refer- ence. The frequency of the TEM Module’s oscillator must be stabilized before it is used for high accuracy timing applications.
  • Page 96 Glossary reached coarse tune, intermediate tune, or fine tune mode (as indicated by the corre- sponding action key); however, for optimal timing performance, the oscillator should first reach fine tune mode. ISO — International Organization for Standardization. IP — Internet Protocol. Protocol specifying the format and address scheme of packets transmitted over the Internet.
  • Page 97 Glossary Rx — Receive or receiver or input. SBAS — Satellite-based augmentation system. A GNSS augmentation system that improves satellite availability when performing surveys in areas with poor satellite visibility. See GNSS Augmentation. SETS — Synchronous Equipment Timing Source. Slave clock — PTP clock that obtains precisely synchronized time generated and distributed by a Grandmaster clock over packet networks (per the IEEE1588 v2 stan- dard).
  • Page 98 Glossary USB — Universal Serial Bus. A bus designed to handle a broad range of devices, such as keyboards, mouses, printers, modems, and hubs. VNC — Virtual Network Computing. A thin client system that enables you to run appli- cations on a VNC server from any other computer connected to the Internet. Using VNC, you can run the T-BERD ⁄...
  • Page 100 22112315 Rev. 004, July 2017 English Viavi Solutions North America: 1.844.GO VIAVI / 1.844.468.4284 Latin America +52 55 5543 6644 EMEA +49 7121 862273 APAC +1 512 201 6534 All Other Regions: viavisolutions.com/contacts email TAC@viavisolutions.com...

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