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TFS NTP80plus Reference Manual

Multiport time server gps version
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NTP80plus Multiport Time
Server Reference Manual
GPS Version
Revision H
March 2018
1
MANUAL P/N 900000165 REV H

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Summary of Contents for TFS NTP80plus

  • Page 1 NTP80plus Multiport Time Server Reference Manual GPS Version Revision H March 2018 MANUAL P/N 900000165 REV H...
  • Page 2 Read First: Safety Information Warnings and Cautions Warnings ... Dangerous voltages exist in this equipment. Do not attempt any repair without first switching off power to the system, at the front panel switch, and removing the power input connector. Nickel, cadmium and lithium are toxic substances. The nickel cadmium battery or lithium battery is dangerous if broken or dismantled.
  • Page 3 No part of this manual may be copied, reproduced, translated, or reduced to any electronic medium or machine-readable form for any use other than with the  Time & Frequency Solutions NTP80plus Network Time Server. All trademarks are the property of their respective owners.

  • Page 4: Revision History

    Correct LED indicator table. Add Appendix A for firmware upload and Factory Defaults. December 22 2012 Update to include all improvements to NTP80plus. NTP80plus additional. August 11 2016 Update to include new UI screenshots May 4 2017 Reformatted to meet Brandywine Document Style.

  • Page 5: Table Of Contents

    Table of Contents 1 Introduction ......................7 1.1 Introduction to the NTP80plus Multiport Time Server ........7 1.2 Packaging .....................8 1.3 Getting to know your NTP80plus ..............9 1.3.1 NTP80plus Time Server ................9 1.3.2 GPS Antenna .....................9 2 Site Preparation ..................... 11 2.1 Overview ..................... 11 2.2 Antenna ......................
  • Page 6 13.2 TFS-GPS-MIB.mib ..................53 13.3 TFS-NTP-MIB.mib ..................55 14 Support Information ..................57 MANUAL P/N 900000165 REV H...

  • Page 7: Introduction

    Congratulations on the purchase of your Time & Frequency Solutions NTP-Multiport Time Server, Model Number NTP80plus. This manual shows you how to install, configure and operate your NTP80plus to provide an NTP time server for your network. Once up and running the NTP80plus will provide accurate time...

  • Page 8: Packaging

    1.2 Packaging The NTP80plus Time Server is supplied as a package, and will contain the following items. Before you start please check that you have been supplied all of the components. Component Notes NTP80plus Network Time Server. GPS Antenna GPS Version Only...

  • Page 9: Getting To Know Your Ntp80Plus

    1.3 Getting to know your NTP80plus 1.3.1 NTP80plus Time Server This is the base product / unit and is the main integral part of the NTP80plus system. 1.3.2 GPS Antenna The NTP80plus requires an antenna for it to synchronise with GNSS satellites. The NTP80plus is supplied with a GPS antenna, and 30 metres of RG58 cable.
  • Page 10 MANUAL P/N 900000165 REV H...

  • Page 11: Site Preparation

    2 Site Preparation 2.1 Overview The NTP80 GPS version is supplied with The NTP80 unit GPS/GNSS Antenna 30m RG58 cable Serial breakout cable (15pin D only) 2.2 Antenna To prepare the site for the NTP80 installation a suitable antenna location has to be found. The antenna is a sealed unit.

  • Page 12: Quick Setup Guide

    3 Quick Setup Guide 3.1 Installation Ensure the power, network and antenna connections have been provided as described in section 2. Connect the antenna to the BNC connector labelled antenna on the rear of the unit along with power and a network connection. The network ports are supplied with default IP addresses of: ETH1 192.168.101.10 ETH2 192.168.102.10 ETH3 192.168.103.10...

  • Page 13: Network Configuration

    3.3.2 Network Configuration Use the network button on the right to select the network configuration page. This provides configuration for all the network settings, IP addresses, SNMP and service selection for the network ports. Configure each port as required. Note that submit must be pressed for each port modified. Changing ports without submitting will lose any changes.

  • Page 14: Ntp Configuration

    return to the status page otherwise use the button. These steps are shown in more detail STATUS in section 5.2 3.3.3 NTP Configuration If the unit is a peer to peer only, i.e. it does not have a GNSS receiver, then the button CONFIGURE will need to selected.

  • Page 15: Ntp80Plus Connections

    Outer: GPS Return. 4.2 GPS Head-End A remote GPS head-end option is available where the GPS receiver and antenna are combined at the antenna location. The NTP80plus is fed with a CAT 5 cable connection from the head- end. 4.3 1 PPS The 1 Pulse per second (1PPS) output is derived from the NTP80 internal clock.

  • Page 16: User Port

    4800 baud, 8 bits/char, no parity, one stop bit. The message can be one of the following and the same on both ports: GPRMC TFS Message 1, byte sequence: centiseconds sec min hour weekday day month year 0 0 0x3f 0xff MANUAL P/N 900000165 REV H...

  • Page 17: 100 Base T Ports

    all time/date values are in BCD. Alarm connections Label Activity Remarks power closed Power is supplied to the NTP80 open Power is off status closed System is operating normally open System is not operating normally sync closed Unit has loaded and serving time open Unit has not loaded 4.5 100 BASE T Ports...

  • Page 18: Web-Based Configuration

    Set up the NTP operating parameters along with the local time zone. System Set up the web security to access the NTP80plus. The NTP80plus is delivered with the web security enabled so access the unit for the first time requires entry of the default username and password. Default username...

  • Page 19: System Security

    5.1 System Security The login credentials, username and password, are set here. If they are removed then the security is disabled. Do not lose these details. If they are lost then the unit will have to be restarted and the factory defaults restored using the user interface port. The remote configuration access limits access of the web interface to an IP address or a range of IP addresses.

  • Page 20: Network Configuration

    5.2 Network Configuration This page allows the configuration of each of the Ethernet ports. Select the port to configure from the drop down list box. The current settings for that port will be shown. The following settings are port specific: IP , Gateway, Netmask, Speed, Duplex DHCP - Permit port to acquire its address via DHCP.
  • Page 21 The following settings are not port specific: DNS server list - comma separated list of DNS server IP addresses. SNMP parameters - These are effective on the ports that have SNMP access enabled. The NTP80 will send traps when a trap address is set. There are rules as to where these traps will be sent depending on the port configurations.
  • Page 22 Note that if you change the IP address of the port through which the web page is being accessed the following will be shown, the link ‘Click here to redirect to STATUS PAGE’ is created to connect to the new address. The navigation panel at this point will not work as it has links to the old address.

  • Page 23: Configure, Ntp Configuration

    5.3 Configure, NTP Configuration This page sets up the NTP service. For the NTP80 with a GNSS receiver the GNSS checkbox must be ticked. The drop down list selects the GNSS constellation used for resolving time. This is after position is resolved in which all satellites in all constellations will be considered.
  • Page 24 AUTO-OFF / Holdover This provides a mechanism for non-standard NTP or SNTP clients that do not properly adhere to NTP protocols such as RFC1305. In particular where the leap indicator flags are not used or the monitoring of reference time is not taken into account. For these situations the auto-off mechanism will stop the NTP80 servicing NTP requests after a period specified, in seconds, from the time that synchronisation is lost.

  • Page 25: Status

    For network-wide broadcast the address would be 255.255.255.255, for a subnet set the host part of the address to the last host address, so for network 192.168.101.0 that would be 192.168.101.255 The above parameters are applied when submit is pressed. This will stop and re-start the NTP service.
  • Page 26 The status number has the following meaning 00,01,02,03: These are all valid. For normal operation this will be 2 04,06: indicates no time is set 08,0A: indicates there is no UTC information 0C,0E: no time and no UTC information Where multi-constellation mode has been selected then the satellites tracked from each constellation are identified.

  • Page 27: Events

    5.5 Events The event page shows all the recorded events from the GPS engine and NTP server parts of the NTP80. The example above shows a typical start up sequence from event id 12938 to 12949. The time shown is the NTP80 time, so if the local time zone has been set on the configure page then this will be NTP80 local time.
  • Page 28 The following lists all the events and their causes that can appear in the event log. They will cause an SNMP v1 trap to be sent to SNMP enabled ports. GPS events are also shown on the front panel of the NTP80, and these events will be shown in the relevant status field on the web status page.

  • Page 29: Remote Restart

    NTP SERVER Sync. Synchronised to source & serving time. System peer <ip address> Synchronisation source found. When this is the GPS engine the IP address will be shown as 127.127.46.0 Acquiring sync Locking to time source No system peers no valid synchronisation sources. Unit in holdover. NTP suspend NTP service suspended &...
  • Page 30 Pressing the reboot now button will cause the unit to do a complete restart. It will take approximately 1 minute to reboot. Clicking the link shown will take you back to the status page. The reboot is recorded in the event log.

  • Page 31: Front Panel Setup & Status

    6 Front Panel Setup & Status. With the NTP80plus switched on and connected to a GPS signal a typical status display would show: Tue Nov 27 16:29:38 2012 9 GPS Normal This indicates that the unit has time from GPS and that the GPS signal is normal. The second row indicates the number of visible satellites as the first number on the left followed by the tracked satellites in the selected constellations.
  • Page 32 So to modify the ETH2 port configuration the following sequence should be followed: Press left Main > Ethernet <- [OK-enter] Press OK [OK-enter] Main > Ethernet > ETH1 [OK-enter] -> Press left [OK-enter] Main > Ethernet > ETH2 <- [OK-enter] ->...
  • Page 33 Ensure that the unit is not left unattended in the port edit page. The GPS status information that can be shown on the front panel is shown below. This is an example power up sequence following on front the NTP80plus identification message at the start. Example GPS start-up sequence…...
  • Page 34 Finally loaded time & default display. Tue Nov 27 16:29:38 2012 9 GPS Normal Other possible status messages are: Antenna not connected Tue Nov 27 16:29:38 2012 12 GPS 0 No antenna present Antenna connection fault Tue Nov 27 16:29:38 2012 12 GPS Antenna shorted All other status messages are detailed in the Events section of Web Management above.

  • Page 35: Working With The Tfs Network Management System

    7 Working with the TFS Network Management System The status of the NTP80plus will be shown on the status tab for the particular time server. There are five sources of possible alarm states. These relate to the status elements NTP overall state, GPS system state and the ETHx ifOperState for each port.
  • Page 36 Time Not loaded NTP80plus GPS engine has not yet loaded time. Should only occur at start-up of NTP80plus. After time has been set the alarm will clear. It can then never be set again without power-down. Acquiring sync GPS is not currently synchronised. The likelihood is that there are not enough tracked satellites.

  • Page 37: Understanding The Network Time Protocol

    8 Understanding the Network Time Protocol. 8.1 Why use the Network Time Protocol Accurate Time has always been an important issue, especially in today’s world where computer systems are required to precisely time stamp events and occurrences. However, computers are notorious for poor time keeping because they use a basic watch crystal as their internal timebase.

  • Page 38: Understanding Ntp

    8.2 Understanding NTP The client computer obtains the NTP protocol by requesting a NTP packet from the NTP Server. The Software that requests the packet handles reception, maintenance and distribution of the time on the computers where it is installed. All Time & Frequency Solutions NTP Time Servers are supplied, with client software as standard for a range of operating systems &...

  • Page 39: Ntp Hierarchical Structure

    Stratum 2 server, and so on. This hierarchical structure allows sub partitioning of groups of networks. Up to 512 Computers may synchronise to a single NTP80plus Time Server. We do not recommend increasing the number of clients beyond this limit, as the performance will become degraded due to non-responses.

  • Page 40: Frequently Asked Questions

    Yes, in most cases the client software will allow the configuration for two IP addresses; one IP address will be the “preferred” server. How do I know if the NTP80plus is free running? ie the NTP80plus has synchronised to GPS at some point but has now lost synchronisation? The webpage status and the NTP80plus front panel will indicate that the GPS status is no longer Normal.
  • Page 41 How many Clients may I connect to one NTP80plus Time Server? The NTP80plus can handle up to 512 packets per second, which equates to a theoretical 512 x 64 (32,000+) clients assuming standard NTP operation. We do however recommend not exceeding 1000 clients as good practise in designing NTP networks.

  • Page 42: Troubleshooting Guide

    Chapter 11. Unable to obtain Time from the server? If the NTP80plus STATUS LED is blue and the display shows Normal, check that you are using the correct software. Some synchronising software looks for a NTP broadcast message, if this is the case, ensure the NTP80 broadcast address is configured correctly.
  • Page 43 Confirm that the NTP80 has not been free running for a long period. Free running occurs when the NTP80 has gained synchronisation and then lost it again. The NTP80 must be synchronised for the NTP to function correctly. Check the web status page to ensure that GPS status is normal and NTP status indicates GPS engine as the synchronisation source.

  • Page 44: Specifications

    11 Specifications Model Number: NTP80Plus (Rackmount Version) Size: 19” Rack Mounting, 1U High, 200mm Deep 1.5kg typical Power: 90-264V AC, 47-63Hz, Load 20W Synchronisation Source: GPS , GPS+GLONASS, GPS+BEIDOU, GLONASS, BEIDOU Input Level: +11dB to +35dB Synchronisation Accuracy: ± 100 nanoseconds from UTC with Signal availability.
  • Page 45 Environment (Operation & Storage) Temperature: 0°C to +75°C Humidity: up to 95% RH (non-condensing) EMC: CE compliant Antenna (Standard): Model Number: 012000002 Output Level: +40dB Frequency Stability: Oscillator Stability Holdover Locked frequency stability over averaging times Per °C Stability for 1 100s 1000s 10000s...

  • Page 46: Resetting Factory Defaults

    12 Appendix A 12.1 Resetting Factory Defaults. Connect a terminal to the serial port, with serial parameters 115200 baud, 8 bits/char, no parity and 1 stop bit. Power up the NTP80, the following menu will appear: 1> Firmware Update 2> Factory Def. As soon as this menu appears press 1 to reset the NTP80 back to the following factory defaults.

  • Page 47: Firmware Update

    12.2 Firmware update When a firmware update is provided it will consist of two files, a .x file and a .ck file. The .ck will contain a line similar to the following: 2673811419 3683505 arch/powerpc/boot/cuImage.pq2fads.x The first number in this file is the checksum, so in this case, 2673811419. Enter http://<IP.ADDRESS>/update.html into a browser.
  • Page 48 Ensure that the power supply will not be interrupted and press submit. The firmware update can be transferred to the NTP80 with an FTP client, such as FileZilla. In the client enter the IP address of the NTP80, there is no username or password.

  • Page 49: Appendix B: Mib File

    13 Appendix B: MIB File The MIB files for the NTP80plus and NTP80plus are listed here. There are three MIB files that define the NTP80plus enterprise MIB: 13.1 TFS-NTPCOMMON-MIB.mib --*********************************************************************-- TFS Enterprise MIB for s/w 0123NT-X v7.00 Rationalisation of TFS mibs for all products.
  • Page 50 ::= {common 4} codeversion OBJECT-TYPE SYNTAX OCTET STRING (SIZE(0..8)) ACCESS read-only STATUS mandatory DESCRIPTION "Firmware version number" ::= {common 5} systemstatus OBJECT IDENTIFIER ::= {tfs 4} lastevent OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "Last event ID" ::= {systemstatus 2}...
  • Page 51 SYNTAX INTEGER sysOK (0), sysFATAL (1), sysWARN (2), sysNET (3), sysINF (4), sysERR (5) ACCESS read-only STATUS mandatory DESCRIPTION "Event type" ::={syslogEntry 4} module OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "Originating module" ::={syslogEntry 5} function OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "function within module"...
  • Page 52 ACCESS read-only STATUS mandatory DESCRIPTION "Event type" ::={linuxlogEntry 3} message OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "Description of event" ::={linuxlogEntry 4} modules OBJECT IDENTIFIER ::= {tfs 8} eventTrap TRAP-TYPE ENTERPRISE VARIABLES timestamp, resolver, eventid, severity, module, function, description DESCRIPTION "System log event trap"...

  • Page 53: Tfs-Gps-Mib.mib

    13.2 TFS-GPS-MIB.mib --*********************************************************************-- TFS Enterprise MIB for s/w 0123NT-X v7.00 Rationalisation of TFS mibs for all products. Initial GPS MIB for NTP80plus. --*********************************************************************-- TFS-GPS DEFINITIONS ::= BEGIN IMPORTS enterprises FROM RFC1155-SMI OBJECT-TYPE FROM RFC-1212 TRAP-TYPE FROM RFC-1215 tfs, modules FROM TFS;...
  • Page 54 latitude OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "latitude degrees N" ::= {gps 7} longitude OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "longitude degrees E" ::= {gps 8} height OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "m above ellipsoid"...

  • Page 55: Tfs-Ntp-Mib.mib

    13.3 TFS-NTP-MIB.mib --*********************************************************************-- TFS Enterprise MIB for s/w 0123NT-X v7.00 Rationalisation of TFS mibs for all products. Initial specific NTP MIB for NTP80plus. --*********************************************************************-- TFS-NTP DEFINITIONS ::= BEGIN IMPORTS enterprises FROM RFC1155-SMI OBJECT-TYPE FROM RFC-1212 TRAP-TYPE FROM RFC-1215 tfs, modules FROM TFS;...
  • Page 56 SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "Frequency error ppm" ::= {ntp 8} clkStability OBJECT-TYPE SYNTAX OCTET STRING ACCESS read-only STATUS mandatory DESCRIPTION "Clock stability ppm" ::= {ntp 9} ntpmode OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "Bit flags set means 3 - NTP no peers, 2 - NTP peer to peer not locked, 1 - GPS source not locked,...

  • Page 57: Support Information

    14 Support Information If the unit is still exhibiting problems not covered by the troubleshooting guide, contact us for technical support at Time & Frequency Solutions Ltd 25 Eastways Witham Essex CM8 3AL United Kingdom Tel +44 (0) 1376 514114 Fax +44 (0) 1376 516116 Email support@timefreq.com...

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