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TAI

: International Atomic Time (Temps Atomique International)

The TAI time scale is based on the SI second and is not adjusted for leap

seconds. As of October 2017, TAI is ahead of UTC by 36 seconds. TAI is
always ahead of GPS by 19 seconds.

GPS

: The Global Positioning System time is the timescale maintained by

the GPS satellites.

Global Positioning System time is the time scale maintained by the GPS
satellites. The time signal is provided by atomic clocks in the GPS ground
control stations. The UTC–GPS offset as of October 2017 is 17 seconds.

For more information on Timescales, see "Timescales" below.

4.

If you want to override the system time with a

manually set User Time

, check the

Manual

Time Set

checkbox. For information, see "Manually Setting the Time" on the next page.

5.

Click

Submit

to update the System Time and close the window.

3.2.1.2

Timescales

The System Time can be configured to operate in one of several

timescales

, such as UTC, GPS

and TAI

(Temps Atomique International)

. These timescales are based on international time

standards, and are offset from each other by varying numbers of seconds.

When configuring NetClock, in most cases,

UTC

will be the desired timescale to select.

Note:

UTC timescale is also referred to as “ZULU” time. GPS timescale is the raw

GPS time as transmitted by the GNSS satellites (in 2017 the GPS time is currently
18 seconds ahead of UTC time. UTC timescale observes leap seconds while GPS
timescale does not).

Note:

The

TAI

timescale also does not observe leap seconds. The TAI timescale is

fixed to always be 19 seconds ahead of GPS time. As of January, 2017 TAI time
is 37 seconds ahead of UTC.

NetClock's System timescale is configured via the

MANAGEMENT > OTHER: Time Man

agement

screen, see "System Time" on the previous page.

Input timescales

Some of the inputs may not necessarily provide time to NetClock in the same timescale selected
in the System Time’s timescale field. These inputs have internal conversions that allow the times
cale for the inputs to also be independently defined, so that they don’t have to be provided in
the same timescale. For example, the System timescale can be configured as “UTC”, but the IRIG
input data stream can provide NetClock with “local” time, with no time jumps occurring when

3.2  System Time

CHAPTER

3

•

NetClock User Reference Guide

Rev.

16

149

Содержание NetClock 9400 Series

Страница 1: ...NetClock 9400 Series Time Server User Reference Guide Document Part No 1209 5000 0050 Revision 16 Date 28 Aug 2017 spectracom com...

Страница 2: ......

Страница 3: ...agreement The software may be used or copied only in accordance with the terms of those agreements No part of this publication may be reproduced stored in a retrieval sys tem or transmitted in any fo...

Страница 4: ...Blank page II NetClock User Reference Guide...

Страница 5: ...Front Panels 6 1 6 1 NetClock 9483 Front Panel 6 1 6 2 NetClock 9489 Front Panel 6 1 6 3 Front Panel Keypad and Display 6 1 6 3 1 Using the Keypad 7 1 6 3 2 Navigating the Front Panel Display 7 1 6 4...

Страница 6: ...s 23 1 11 Regulatory Compliance 24 CHAPTER 2 SETUP 27 2 1 Overview 28 2 1 1 Main Installation Steps 28 2 2 Unpacking and Inventory 29 2 3 Required Tools and Parts 29 2 3 1 Required GNSS Antenna Compon...

Страница 7: ...nnecting Reference Inputs and Network Interface 55 2 14 Configuring Network Settings 56 2 14 1 General Network Settings 58 2 14 2 Network Ports 59 2 14 3 Network Services 62 2 14 4 Static Routes 64 2...

Страница 8: ...TP Access Restrictions 120 2 15 11 Enabling Disabling NTP Broadcasting 122 2 15 12 NTP over Anycast 123 2 15 12 1 Configuring NTP over Anycast General Settings 124 2 15 12 2 Configuring NTP over Anyca...

Страница 9: ...econd Correction Sequence 156 3 2 3 4 Configuring a Leap Second 157 3 2 4 Local Clock s DST 157 3 2 4 1 Adding a Local Clock 158 3 2 4 2 DST Examples 160 3 2 4 3 DST and UTC GMT 161 3 3 Managing Input...

Страница 10: ...cillator Logs 221 CHAPTER 4 SYSTEM ADMINISTRATION 223 4 1 Powering Up Shutting Down 224 4 1 1 Powering Up the Unit 224 4 1 2 Shutting Down the Unit 225 4 1 3 Issuing the HALT Command Before Removing P...

Страница 11: ...ypical Configuration Tasks 256 4 4 1 Web UI Timeout 256 4 4 2 Configuring the Front Panel 257 4 4 3 Displaying Local Time 261 4 4 4 Creating a Login Banner 261 4 4 5 Show Clock 262 4 4 6 Configuring a...

Страница 12: ...ations to their Factory Defaults 313 4 7 2 Backing up and Restoring Configuration Files 314 4 7 2 1 Accessing the System Configuration Screen 314 4 7 2 2 Saving the System Configuration Files 316 4 7...

Страница 13: ...Option Module Settings via the Web UI 341 5 2 3 1 Web UI Navigation Option Modules 342 5 2 3 2 Viewing Input Output Configuration Settings 343 5 2 3 3 Configuring Option Module Inputs Outputs 344 5 2...

Страница 14: ...5 4 4 Spectracom Format 0 389 5 4 5 Spectracom Format 1 391 5 4 6 Spectracom Format 1S 392 5 4 7 Spectracom Format 2 394 5 4 8 Spectracom Format 3 396 5 4 9 Spectracom Format 4 398 5 4 10 Spectracom...

Страница 15: ...IRIG B Code Description 421 5 5 4 IRIG E Output 425 5 5 5 IRIG Output Accuracy Specifications 429 5 6 Technical Support 429 5 6 1 Regional Contact 430 5 7 Return Shipments 430 5 8 License Notices 431...

Страница 16: ...BLANK PAGE XIV NetClock User Reference Guide TABLE OF CONTENTS...

Страница 17: ...specifications The following topics are included in this Chapter 1 1 Getting Started 2 1 2 Introduction 2 1 3 NetClock 9483 Overview 2 1 4 NetClock 9489 Overview 4 1 5 Inputs Outputs 4 1 6 NetClock 94...

Страница 18: ...ly suited for a variety of communications applic ations such as Emergency Communications Centers that require extremely accurate timing and frequency synchronization for their mission critical systems...

Страница 19: ...MHz and 1 Pulse per second 1PPS signals are standard features and additional optional features include support for T1 E1 signals are available for synchronizing telecom systems and equipment and Prec...

Страница 20: ...489 also provides one 1 1PPS output two 2 RS 485 outputs and 1 RS 484 input There are a number of commonly shared features between both the NetClock 9483 and 9489 models However the NetClock Model 948...

Страница 21: ...ionality Type Connector 3 10 100 1000Base T Multi Ethernet RJ 45 auto sensing 1 1 544 or 2 048 MHz 2 1 544 or 2 048 MHz T1 E1 Balanced 3 81 mm Terminal Block 1 PTP IEEE 1588 RJ 45 For more information...

Страница 22: ...32 serial port interface for serial cable connections 1 6 2 NetClock 9489 Front Panel Figure 1 2 NetClock 9489 Front Panel The front panel of the NetClock 9489 unit consists of the following Three Sta...

Страница 23: ...and setup displays are access ible from the main Home menu To navigate through the menus use the arrow keys to highlight a selection and then press the ENTER button The main menu options and their pr...

Страница 24: ...nfirm the setting change Press ENTER to accept or BACK to cancel the parameter change All entered values are stored in the unit s non volatile memory and will be restored after a power cycle 1 6 4 Sta...

Страница 25: ...n chronized to its reference Orange The unit is in Holdover Mode It was synchronized to its selected input references but has since lost all available inputs or the inputs are not declared valid The t...

Страница 26: ...ector Only installed if the NetClock was ordered with DC input power option Note DC input power does not have an ON OFF switch Ethernet connector Provides an interface to the network for NTP synchroni...

Страница 27: ...connections Relay Alarm outputs GNSS antenna connector GNSS input for GNSSS antenna and coax cabling type N connector RS 485 output for serial connection Note The pin numbers for the RS 485 outputs a...

Страница 28: ...nel of NetClock model 9489 The pinout description for the RS 485 connector can be found under NetClock 9489 In Out puts on page 336 12 CHAPTER 1 NetClock User Reference Guide Rev 16 1 7 NetClock 9400...

Страница 29: ...2 048 MHz Module Outputs T1 mode 1 544 MHz square wave frequency output 2 1 544 Mb sec data rate outputs Outputs are DS1 framed all ones Supports Super Frame SF or D4 and Extended Super Frame ESF SSM...

Страница 30: ...abled or Disabled NTP server only Maximum Number of Cards 4 Ordering Information Option 16 Multi port Ethernet 3X Module 14 CHAPTER 1 NetClock User Reference Guide Rev 16 1 8 NetClock 9483 Available O...

Страница 31: ...Should it ever be necessary you can restore NetClock s configuration to the factory settings at any time See Resetting the Unit to Factory Configuration on page 313 1 9 1 The Web UI HOME Screen Note S...

Страница 32: ...ime and the Oscillator TOOLS Opens a drop down menu for access to the system maintenance screens and sys tem logs HELP Provides Spectracom Service Contact Information and high level system con figurat...

Страница 33: ...can be accessed through different menu items e g an optional output will be available under the OPTION CARDS menu and the OUTPUTS menu The headings of each of the INTERFACES drop down menus white on o...

Страница 34: ...of a mask alarm and or SNMP Trap and or email Time Management Manage the Local Clock UTC Offset DST Definition and Leap Second information Front Panel Configure the appearance of the NetClock front pa...

Страница 35: ...AC power source 100 to 240 VAC 50 60 Hz 10 and 100 120 VAC 400 Hz 10 via an IEC 60320 connector power cord included DC input option 12 17 VDC 15 20 or 21 60 VDC 15 20 secure locking device Note The DC...

Страница 36: ...z Galileo E1 B C transmissions at 1575 42 MHz BeiDou B1 transmissions centered at 1561 098 MHz QZSS L1 SAIF transmissions at 1575 42 MHz Satellites tracked Up to 72 simultaneously Update rate up to 2H...

Страница 37: ...user selectable Accuracy 2 to 200 microseconds IRIG Format dependent 1 10 8 Protocols Supported NTP NTP Version 4 Installed Version 4 2 8p8 Provides MD5 Stratum 1 through 15 RFC 5905 Note that NTP Au...

Страница 38: ...lator Type Accuracy to UTC 1 sigma locked to GPS Holdover constant temp after 2 weeks of GPS lock After 4 hours After 24 hours Rubidium 25 ns 0 2 s 1 s Standard OCXO 50 ns 1 s 25 s TCXO 50 ns 12 s 450...

Страница 39: ...of GPS lock Short Term Stability Allan vari ance Temperature Stability p p 1 sec 10 sec 100 sec Rubidium 5x10 11 month 3x10 11 month typ ical 2x10 11 2x10 12 2x10 12 1x10 10 Standard OCXO 5x10 10 day...

Страница 40: ...ine wave Vibration Operating 10 55 Hz 0 07 g Hz 55 500 Hz 1 0 g Hz Storage 10 55 Hz 0 15 g Hz 55 500 Hz 2 0 g Hz MIL STD 810F 501 4 502 4 507 4 500 4 516 5 514 5 1 11 Regulatory Compliance This produc...

Страница 41: ...sting no E311040 EMC CE EN 55022 2006 A1 2007 Class A EC Emissions Standard EN 55024 1998 A2 2003 EC Generic Immunity Standard EN 61000 3 2 2006 Harmonic Current Emissions EN 61000 3 3 1995 A2 2005 Vo...

Страница 42: ...BLANK PAGE 1 11 Regulatory Compliance 26 CHAPTER 1 NetClock User Reference Guide Rev 16...

Страница 43: ...Unit 34 2 6 Connecting Supply Power 36 2 7 Connecting the GNSS Input 40 2 8 Connecting Network Cables 40 2 9 Connecting Inputs and Outputs 41 2 10 Powering Up the Unit 41 2 11 Setting up an IP Addres...

Страница 44: ...Using a PC connected to NetClock via network cable You can connect your PC to NetClock either directly by means of a dedicated Ethernet cable or indirectly using your existing Ethernet network using...

Страница 45: ...damage If any equipment has been damaged in transit or you experience any problems during installation and configuration of your Spec tracom product please contact Spectracom see Technical Support on...

Страница 46: ...on using a GNSS reference with your NetClock you will also need Spectracom LMR 400 antenna cable with N connectors Spectracom outdoor GNSS antenna with mounting bracket Spectracom GNSS antenna surge s...

Страница 47: ...st Practices CHASSIS GROUND This symbol is used for identifying the functional ground of an I O signal It is always connected to the instrument chassis Analog Ground Shows where the protective ground...

Страница 48: ...pment must comply with local and national electrical codes DANGER DO NOT OPEN EQUIPMENT UNLESS AUTHORIZED The interior of this equipment does not have any user serviceable parts Contact Spectracom Tec...

Страница 49: ...t The equipment shall be located in the same immediate area such as adjacent cabinets as any other equipment that has a connection to the earthing conductor of the same AC or DC supply circuit earthin...

Страница 50: ...to use the product do the following Disconnect the supply voltage from the unit Clearly mark the equipment to prevent its further operation 2 5 Mounting the Unit NetClock units can be operated on a de...

Страница 51: ...ins the following parts needed for rack mounting 2 each 1165 1000 0714 rack mounting brackets 2 each MP09 0003 0030 equipment rack handles 4 each H020 0832 0406 8 32 flat head Phillips screws 6 each H...

Страница 52: ...wer sources is lost Before connecting power to the unit be sure that you have read all safety information detailed in section SAFETY on page 31 2 6 1 Power Source Selection Note Applies to NetClock 94...

Страница 53: ...C power is an option chosen at time of purchase The rear panel DC input port connector is only installed if the DC input option is available Different DC power input options are available 12 VDC with...

Страница 54: ...power supply switch to energize de energize NetClock externally DC power connector pin out NetClock units can be ordered in a DC version that includes the following DC plug on the back panel DC Plug 3...

Страница 55: ...12 V or 24 48 V this would be the ground or return output from the DC source For a 12 V or 24 48 VDC source this would be the negative output from the DC source Pin C goes to the Earth ground of the...

Страница 56: ...een 2 8 Connecting Network Cables NetClock provides a base 10 100 Ethernet port for full NTP functionality as well as a com prehensive web based user interface Web UI for configuration monitoring and...

Страница 57: ...input either in addition to or in lieu of GNSS NTP user set time and other available reference inputs To use e g an external IRIG reference connect the IRIG time source to the BNC connector J1 on the...

Страница 58: ...3 Check the front panel status LED indicators The Power lamp should be solid green The Sync lamp will probably be red since synchronization has not yet been achieved The Fault lamp will be OFF or sol...

Страница 59: ...x dependent on ETH port Subnet mask for the network The subnet mask defines the number of bits taken from the IP address that are used in the network portion The number of network bits used in the net...

Страница 60: ...lock 9483 only If you are setting up a NetClock 9489 unit which does not have a front panel information display and keypad see Setting Up a Temporary IP Address Remotely on page 51 b By connecting the...

Страница 61: ...eceiver information and log files or to perform oper ations such as resetting the admin password For this task you will need a serial cable and a Personal Computer PC with a command line user interfac...

Страница 62: ...address into a web browser s address bar Setting Up an IP Address via Ethernet Cable Note You may use an Ethernet crossover cable but you do not have to Turn on the unit with NO cable plugged into the...

Страница 63: ...r values in edit displays ENTER key Select a menu option or load a parameter when editing BACK key Return to previous display or abort an edit process An illustration showing how to navigate the front...

Страница 64: ...e setting then again to apply the new setting 3 The display will change allowing you to input an address at N 000 000 000 001 Enter the gateway address here The address entered must correspond to the...

Страница 65: ...rts DNS the hostname may also be entered instead the default hostname is Spectracom The start screen of the NetClock Web UI will be displayed 2 Log into the Web UI as an administrator The factory defa...

Страница 66: ...o configure an IP address via the serial port 1 Connect a serial cable to a PC running PuTTY Tera Term or HyperTerminal and to your NetClock For detailed information on the serial port connection see...

Страница 67: ...is to be disabled such as eth0 d Select DHCP from the next menu The display will show State Enabled and Action Disabled The State is the current DHCP setting and the Action is the action to take You...

Страница 68: ...pt window 3 Install the NetClock 9489 on your network and the same subnet as the workstation 4 Power on the NetClock 9489 wait for 2 minutes for the system to fully boot 5 From the command prompt issu...

Страница 69: ...twork Bits Equivalent Netmask Network Bits Equivalent Netmask 30 255 255 255 252 18 255 255 192 0 29 255 255 255 248 17 255 255 128 0 28 255 255 255 240 16 255 255 0 0 27 255 255 255 224 15 255 254 0...

Страница 70: ...rtificate security pop up window may continue to be displayed each time you open the Web UI until you saved the certificate in your browser Note Static IP address only To prevent the security pop up w...

Страница 71: ...include GPS as an external reference input If the GPS receiver is not installed or if the GPS will not be used as a NetClock reference just disregard the steps to install the GPS antenna and associate...

Страница 72: ...on page 6 to input the desired static IP subnet mask and gateway address Network Bits Equivalent Netmask Network Bits Equivalent Netmask 30 255 255 255 252 18 255 255 192 0 29 255 255 255 248 17 255...

Страница 73: ...next page Web Interface Settings Web interface timeout Determines how long a user can stay logged on For more information see Web UI Timeout on page 256 Access Control Allows the configuration of acce...

Страница 74: ...ee buttons INFO button Displays the Ethernet port Status window for review purposes GEAR button Displays the Ethernet port settings window for editing purposes TABLE button Displays a window that allo...

Страница 75: ...dow also displays the IPv4 Address and default IPv4 Gateway 2 14 2 Network Ports Ports act as communication endpoints in a network The hardware configuration of your unit will determine which ports e...

Страница 76: ...options needed to complete the port setup Fill in the fields as required Domain This is the domain name to be associated with this port Enable DHCPv4 Check this box to enable the delivery of IP addre...

Страница 77: ...the network administrator In the form xxx xxx xxx xxx See Subnet Mask Values on page 53 for a list of subnet mask values IPv4 Gateway The gateway default router address is needed if communication to...

Страница 78: ...es can be added and deleted by clicking the Edit IPv6 Address button at the bottom of the screen Note If the button is not displayed you need to Enable this port first and click Submit Enable SLAAC Ch...

Страница 79: ...TPS Hypertext Transfer Protocol Secure Classic UI This toggle switch allows the NetClock Classic User Interface as used in NetClock Web UI Version 5 0 2 and older to be turned ON or OFF Default OFF To...

Страница 80: ...Command Line Interface see CLI Commands on page 382 in combination with the Sudo command Please also note that you need to have admin user rights to run this command Note A listing of recommended and...

Страница 81: ...dress This is the address subnet to route to Prefix This is the subnet mask in prefix form e g 24 See also Subnet Mask Values on page 53 Router Address This is where you will go through to get there C...

Страница 82: ...to add dir ect IP addresses but instead they must be input as blocks i e you need to add 32 at the end of an IP address to ensure that only that address is allowed Example 10 2 100 29 32 will allow on...

Страница 83: ...are used for sender recipient authentication Note In order to configure HTTPS you need ADMINISTRATOR rights Note that NetClock supports two different modes of HTTPS operation The Standard HTTPS Level...

Страница 84: ...re outside the window Should you exit the HTTPS Setup window while filling out the certificate request parameters form before clicking the Submit button any information you entered will be lost When s...

Страница 85: ...herwise you may receive security warnings from your web browser each time you login 2 14 6 3 Supported Certificate Formats NetClock supports X 509 PEM and DER Certificates as well as PKCS 7 PEM and DE...

Страница 86: ...mise security and is not recommended Two Letter Country Code This code should match the ISO 3166 1 value for the country in question State Or Province Name From the address of the organization creatin...

Страница 87: ...ng authen ticated The Common Name field in the X 509 Certificate must match the host name IP address or URL used to reach the host via HTTPS Email Address This is the email address of the organization...

Страница 88: ...ommended because they can take several hours to generate The most common key bit length is the value 1024 Note The default key bit length value is 2048 When using a self signed Certificate choose valu...

Страница 89: ...u need to cre ate a Certificate Request 1 Navigate to MANAGEMENT HTTPS Setup or to MANAGEMENT Network Setup Actions panel HTTPS 2 In the HTTPS Setup window under the Certificate Request Parameters tab...

Страница 90: ...to a separate text file Save the file before generating a new request Using a Self Signed Certificate In the process of generating a Certificate Request a self signed certificate will automatically be...

Страница 91: ...r CA Certificate Uploading X 509 PEM certificate text To upload an X 509 PEM Certificate text to NetClock 1 Navigate to MANAGEMENT NETWORK HTTPS Setup 2 Select the Upload X 509 PEM Certificate tab 3 C...

Страница 92: ...ile provided to you by the Certificate Authority in a location accessible from the computer on which you are running the Web UI 2 In the Web UI navigate to MANAGEMENT NETWORK HTTPS Setup 3 Select the...

Страница 93: ...delete RSA or DSA keys for the SSH2 protocol Note Only SSH2 is supported due to vulnerabilities in the SSH1 protocol The SSH tools supported by NetClock are SSH Secure Shell SCP Secure Copy SFTP Secu...

Страница 94: ...he recommended key size is 1024 Though many key sizes are supported it is recommended that users select key sizes that are powers of 2 or divisible by 2 The most popular sizes are 768 1024 and 2048 La...

Страница 95: ...t line terminations and other EOL or EOF characters should correspond to UNIX conventions not Windows Changing Key Length Values You may change the key length of the RSA DSA ECDSA and ED25519 type hos...

Страница 96: ...the field for the key you wish to delete and click Submit Creating Host Public Private Key Pairs You may create individualHost Public Private Key pairs Host keys must first be deleted before new Host...

Страница 97: ...either method Whichever mode works is allowed for logging in If the Public Key is not correct or the Passphrase is not valid the user is then prompted for the login account password 2 Remove the old...

Страница 98: ...be forbidden You must select a method allow ing the use of account password authentication to enable login or file transfers using SCP or SFTP Editing the authorized_key File via CLI Secure shell ses...

Страница 99: ...ut from OpenSSH SCP and SFTP client commands are shown below Perform an SCP file transfer to the device using Account Password authentication scp authorized_keys scp 10 10 200 5 ssh spadmin 10 10 200...

Страница 100: ...live timeout is hard set to 7200 seconds This value is not configurable 2 14 8 SNMP SNMP Simple Network Management Protocol is a widely used application layer protocol for managing and monitoring netw...

Страница 101: ...authorization passwords as well as privilege Types and Passphrases Clicking on the symbol in the top right corner opens the SNMP V3 Screen See SNMP V3 on page 89 SNMP Traps This panel allows you to de...

Страница 102: ...uration To restore the NetClock to its default SNMP configuration 1 Navigate to the MANAGEMENT NETWORK SNMP Setup screen 2 In the Actions panel click the Restore Default SNMP Configuration button 3 Co...

Страница 103: ...n on your PC for later transfer to the SNMP Manager 4 Compile the MIB files onto the SNMP Manager Note When compiling the MIB files some SNMP Manager programs may require the MIB files to be named som...

Страница 104: ...NAGEMENT NETWORK SNMP Setup 2 In the SNMP V1 V2 panel click the PLUS icon in the top right corner 3 The SNMP V1 V2c Settings for Access window will display 4 Enter the required information in the fiel...

Страница 105: ...arrow icon to a pointing finger to indicate that the entry is clickable 3 The SNMP V1 V2c Settings for Access window will display Note The options available for editing in the SNMP V1 V2c Settings for...

Страница 106: ...tween 1 and 31 characters in length The User Name must be the same on NetClock and on the management sta tion The Auth Type field provides a choice between MD5 and SHA The Auth Password must be betwee...

Страница 107: ...e one or more objects referred to as variable bindings or varbinds A varbind provides a current NetClock data object that is related to the specific trap that was sent For example when a Hol dover tra...

Страница 108: ...be sent The default port is 162 v1 v2c v3 The UDP Port number used by SNMP Traps default 162 v1 v2c Engine Id must be a hexadecimal number such as 0x1234 The Id originates from the MIB Browser SNMP M...

Страница 109: ...MIBs reside under the enterprise identifier 18837 3 For detailed descriptions of the objects and traps supported by the NetClock please refer to the Spectracom NetClock MIB files See Accessing the SN...

Страница 110: ...contains the time when the next 1PPS discrete will occur It is sent once per second prior to the 1PPS discrete Table 2 6 System Time Message format Word Byte 3 Byte 2 Byte 1 Byte 0 1 Msg ID 2 Msg Size...

Страница 111: ...to broadcast NTP data to the network s broadcast address NTP and SNTP are used to synchronize time on any computer equipment compatible with the Network Time Protocol This includes Cisco routers and...

Страница 112: ...NTP Service use the right Timescale See NTP Output Timescale on page 101 3 If required have you setup other NTP Servers and Peers for fallback purposes See NTP Servers and Peers on page 105 4 Have you...

Страница 113: ...view the NTP Peers that NetClock detects in your net work It is through this display that you configure NTP Peer reference inputs See NTP Peers Adding Configuring Removing on page 110 For more inform...

Страница 114: ...ns table include Type IP Version IP IP Mask Auth only Enable Query View NTP Clients Click here to reveal a table of all the clients your NetClock is ser vicing See also Viewing NTP Clients on page 100...

Страница 115: ...ratum 1 see NTP Reference Configuration on page 103 The NTP Status Summary panel provides a real time overview of your key NTP network parameters For more information see NTP Status Monitoring on page...

Страница 116: ...ents that are syn chronizing to NetClock via NTP You can search any of the fields for specific information in the Search field at the top of the window A limit of 10 entries will appear on the screen...

Страница 117: ...sed for network synchronization Note that the System Time affects not only NTP output but also all other aspects of time man agement e g time distributed via channels other than NTP logging and time d...

Страница 118: ...e in UTC The network PCs will receive UTC time via NTP TAI The network PCs will receive TAI time via NTP GPS The network PCs will receive GPS time via NTP Note When the Timescale is set to GPS the GPS...

Страница 119: ...time servers in an NTP network where the Stratum level 0 15 indicates the device s distance to the reference clock Stratum 0 means a device is directly connected to e g a GPS antenna Stratum 0 devices...

Страница 120: ...n which case this box should not be checked Enable Stratum 1 1PPS This option determines whether or not NTP uses the 1PPS input from the Timing System The 1PPS input to NTP needs to correlate with its...

Страница 121: ...o correlate which tends to result in better NTP performance 5 Click the Submit button 2 15 8 NTP Servers and Peers NetClock can be configured to receive time from one or more available NTP Servers Net...

Страница 122: ...ock will report to the network that it is a Stratum 2 Server In order for NetClock to use other NTP servers as a valid time reference to synchronize the Sys tem Time the input Reference Priority Setup...

Страница 123: ...ls The following columns are used to break down the status information for recognized NTP Serv ers and NTP Peers Note Servers will be displayed in the Status view only if they can be resolved They wil...

Страница 124: ...is reference was last polled for its time POLL The polling interval i e how often NetClock is polling this NTP reference for its time DELAY ms The measured one way delay between NetClock and its selec...

Страница 125: ...oll Interval Select a value from the drop down the default is 3 8s Max Poll Interval Select a value from the drop down the default is 3 8s For both NTP Peers and NTP Servers the Minimum and Maximum Po...

Страница 126: ...ormally recommended to select more than one NTP Server in the NTP Servers table as being Preferred Typically only one NTP server should be selected as Preferred 5 Click Submit or press Enter 2 15 8 3...

Страница 127: ...must be identically con figured on both the NetClock and the NTP Peer or NTP Server If the Symmetric Key ID Key string pair method is selected the Key ID must be first defined on the Symmetric Key pa...

Страница 128: ...authen tication keys are used to authenticate time synchronization thus detecting a fake time source before it can do harm 2 15 9 1 NTP Autokey The NTP version installed on NetClock supports the Autok...

Страница 129: ...he NTP serv ers closest to the actual time reference Stratum 1 should be designated trusted A single Stratum 1 NTP server generates the IFF Group Client Keys There is NO group name feature supported T...

Страница 130: ...Note When you configure NTP Autokey you must disable the NTP Service first and then re enable it after Autokey configuration is completed See Dis En abling NTP on page 99 To configure NTP Autokey 114...

Страница 131: ...ient certificates 7 Select the Certificate Type for your server by clicking the appropriate radio button for Server Client or Trusted T R U S T E D S e r v e r Before a server can be designated Client...

Страница 132: ...e system time 3 Verify this NetClock is in fact NTP Stratum 1 and its Time and 1PPS synchronization to GNSS are valid 4 Under the Autokey tab of the Edit NTP Services window Enable Autokey Check the b...

Страница 133: ...Prefer Stratum 1 Enable Stratum 1 1PPS 8 In the NTP Servers panel of the main window add an NTP server and enable the Autokey option box See NTP Servers Adding Configuring Removing on page 108 9 Enab...

Страница 134: ...ng an MD5 authenticator This feature does not encrypt the time packets but attaches an authenticator which consists of a key identifier and an MD5 message digest to the end of each packet This can be...

Страница 135: ...the NetClock must contain the same key ID key string pair the client must be set to use one of these MD5 pairs and the key must be trusted Key ID The key ID must be a number between 1 and 65532 Diges...

Страница 136: ...its own valid authenticator using the same Key ID provided in the NTP request You may define the trusted Symmetric Keys that must be entered on both NetClock and any net work client with which NetCloc...

Страница 137: ...estrictions Status window will display To ADD or EDIT an access restriction click the PLUS icon or the Change button respectively and proceed to Step 4 below To DELETE an access restriction click the...

Страница 138: ...r Autokey from this user or network segment Allow NTP Queries checkbox Check this box if you want to allow external NTP queries into NetClock services 5 Click the Submit button 2 15 11 Enabling Disabl...

Страница 139: ...Submit 2 15 12 NTP over Anycast NTP Network Time Protocol is a packet network based synchronization protocol for syn chronizing a client clock to a network master clock see also Configuring NTP on pag...

Страница 140: ...s a valid reference again it will make itself available to the OSPF router which will then use it as a time source again based on the principle of shortest path available Figure 2 3 All NTP Servers ar...

Страница 141: ...SPF area 2 In the NetClock Web UI navigate to MANAGEMENT Network NTP Setup 3 In the Actions Panel click NTP over Anycast 4 In the NTP Anycast window select the General tab 5 On the General tab select...

Страница 142: ...General tab select IPv6 as the IP Version 6 Select the port to associate the Anycast service with depending on the option card con figuration of your unit there may be only ETH0 available 7 Select the...

Страница 143: ...and displays the neighbor address field based on your needs 6 Select the port to associate the Anycast service with depending on the option card con figuration of your unit there may be only ETH0 avai...

Страница 144: ...only be utilized by advanced users as incorrectly altering the Anycast files can cause Anycast to stop working Caution Any configurations made in Expert Mode will be lost as soon as Expert Mode is dis...

Страница 145: ...32 ipv6 address 2000 10 10 1 64 Example zebra conf file with IPv4 and IPv6 configured on different ports Interface eth0 line followed by only IPv4 line because no IPv6 address is configured on that po...

Страница 146: ...t permit 10 10 14 1 32 access list default deny any Example ospf6d conf file interface eth0 router ospf6 router id 10 2 100 157 interface eth0 area 0 0 0 0 redistribute connected Example bgpd conf fil...

Страница 147: ...after expiration of the Holdover period can be of a low quality and therefore normally ought to be considered invalid NTP Orphan Mode exists as an option for timing networks that must stay intact eve...

Страница 148: ...ting When updating to future System Software versions the last setting will be carried over to the new software In any case after a system software update it is advisable to verify that Host Disciplin...

Страница 149: ...with CISCO routers Caution NTP Expert Mode should only be utilized by advanced users as incor rectly altering the NTP conf file can cause NTP to stop working if NTP is con figured as an input referenc...

Страница 150: ...le can be reset back to the factory default values by either using the procedure to restore all of the NetClock factory default settings see Restoring the Default NTP Configuration on page 100 or edit...

Страница 151: ...s file peerstats type day enable filegen clockstats file clockstats type day enable Prior to Expert mode being enabled the Network NTP Setup page will contain various tabs for configuring different op...

Страница 152: ...s disabled 2 15 16 Spectracom Technical Support for NTP Spectracom does not provide technical assistance for configuring and installing NTP on Unix based applications Please refer to www ntp org for N...

Страница 153: ...t reference settings method 2 1 In the INTERFACES REFERENCES drop down menu click REFERENCES white on orange or an input reference category GNSS reference for example 2 In the Status window click the...

Страница 154: ...k the GEAR button next to the desired output 3 The settings window for the chosen output will be displayed Edit the field s as desired 2 17 1 The Outputs Screen NetClock outputs deliver a time or freq...

Страница 155: ...is the on time point There is a fixed phase relationship between the 1PPS and the 10 MHz outputs as described below NetClock equipped with TCXO OCXO Low Phase Noise Rubidium oscillator With oscillato...

Страница 156: ...put 1 Navigate to INTERFACES OUTPUTS or to INTERFACES OPTION CARDS white on orange 2 In the panel on the right click the GEAR button next to the 1PPS Output you want to edit 3 The 1PPS Output Edit win...

Страница 157: ...e g ASCII or IRIG are available through Option Modules The functionality and configuration of these options are documented under Option Modules on page 335 2 17 4 Network Ports The Network Ports can b...

Страница 158: ...less NetClock is not synchronized to its references NetClock is in Holdover mode III Output Disabled in Holdover The 1PPS output is present unless the NetClock references are considered not qualified...

Страница 159: ...t to configure 2 In the Outputs panel click the GEAR button for the desired output Ehe Edit window will open with the current Signature Control setting and a drop down list to change it 2 17 Configuri...

Страница 160: ...BLANK PAGE 2 17 Configuring Outputs 144 CHAPTER 2 NetClock User Reference Guide Rev 16...

Страница 161: ...only to the concept of NetClock s System Time but also to reference con figuration as well as distribution of time and frequency The following topics are included in this Chapter 3 1 The Time Managem...

Страница 162: ...so required See System Time on page 148 Offsets panel The Timescales UTC TAI and the GPS supplied time are offset by several seconds e g to accommodate leap seconds The GPS offset may change over tim...

Страница 163: ...the System Time is synchronized to NetClock s input references such as GNSS IRIG ASCII data NTP PTP etc If a UTC based time is not required however it is also possible to manually set the System Time...

Страница 164: ...n the top left corner of the Time Management screen click the GEAR icon 3 The Edit System Time pop up window will display In the System Timescale field select a timescale from the drop down list The o...

Страница 165: ...t from each other by varying numbers of seconds When configuring NetClock in most cases UTC will be the desired timescale to select Note UTC timescale is also referred to as ZULU time GPS timescale is...

Страница 166: ...ed in the System Time s timescale field These outputs have internal conversions that allow the timescale for the outputs to also be independently defined so that they don t have to be provided in the...

Страница 167: ...ME If you do not select Set Year Only this box will show the current time in the format Year Month Day Hour Minute Second To set the time manually click anywhere in the System Time field A drop down c...

Страница 168: ...main yellow once Holdover has expired since the system time is not synchronized to a reference Note Contrary to the User reference discussed above the Local System reference can be used for Time or 1P...

Страница 169: ...the time is set manually in an autonomous system In a non autonomous system i e when using external reference s NetClock s System Clock will regularly update the battery backed time Another factor im...

Страница 170: ...s may change because of leap seconds see Leap Seconds on the facing page 3 2 2 1 Configuring a Timescale Offset To configure a timescale offset to the System Time 1 Navigate to MANAGEMENT OTHER Time M...

Страница 171: ...every six months either to announce a time step in UTC or to confirm that there will be no time step at the next possible date A Leap Second may be either added or removed but in the past the Leap Se...

Страница 172: ...ume that the Leap Second will be added not removed NTP Packets contain two Leap Indicator Bits In the 24 hours preceding a Leap Second Adjustment the Leap Indicator Bits 2 bits which normally are 00b...

Страница 173: ...dit Leap Second window will display 4 In the Leap Second Offset field enter the desired GPS Offset 5 In the Date and Time field enter the date that the desired leap second should occur 6 Click Submit...

Страница 174: ...spaces are allowed The name can be any meaningful name that helps you know your point of ref erence for example NewYork Paris or EasternHQ etc This name will be used as cross reference drop down in t...

Страница 175: ...ns will display EU Europe For locations complying with the European DST Rule This rule differs from all other rules because the DST changes occur based on UTC time not local time all time zones in Eur...

Страница 176: ...tional Local Clocks may need to be created if multiple input Timescales are being submitted 10 Click Submit Your local clock will appear in the Local Clocks panel 3 2 4 2 DST Examples The following tw...

Страница 177: ...k can be synchronized to different time and frequency sources that are referred to as Input References or just References References can be a GNSS receiver or other sources such as NTP PTP IRIG ASCII...

Страница 178: ...eference titles are listed in the following table Table 3 1 Reference priority titles Title Reference ASCII Timecode ASCII serial timecode input External 1PPS input External 1PPS input Frequency Exter...

Страница 179: ...moves the Index row from the Reference Priority table 3 3 1 1 Configuring Input Reference Priorities NetClock can use numerous external time sources referred to as references As external time sources...

Страница 180: ...e Status panel The Reference Status panel provides a real time indicator of the status of the NetClock s references It is the same as the Reference Status panel on the HOME screen of the Web UI Adding...

Страница 181: ...en via MANAGEMENT OTHER Reference Priority 2 In the Configure Reference Priorities table click the Delete button on the right hand side of the entry you wish to delete 3 In the pop up window that open...

Страница 182: ...e i e NetClock uses itself as an input reference for Time or as a 1PPS reference The Local System is a unique input reference in that it can be used as either the Time reference or the 1PPS reference...

Страница 183: ...gned to any standard therefore the time may drift and must be considered untraceable 3 3 1 3 The User User Reference While it is normally not required it is possible for you as the User to override th...

Страница 184: ...resets or after the Holdover period has expired In the Edit System Time window the checkbox Manual Time Set must be checked The System Time displayed in the field below will become valid the moment th...

Страница 185: ...ove the reference which has GPS 0 in the Time column and GPS 0 in the 1PPS column to the top of the table with a Priority value of 1 Click the Enabled checkbox 2 Move the reference which has GPS 0 in...

Страница 186: ...kbox 2 For all other references uncheck the Enabled checkbox so that they are all disabled 3 Configure the NTP Service as described under Configuring NTP Stratum Syn chronization on page 104 Note When...

Страница 187: ...y Backed Time on Startup Example 5 Time at power up Local System Time to be considered Valid GNSS input to serve as 1PPS reference The objective of this use case is to allow NetClock to use itself as...

Страница 188: ...lso be used to manually re organize reference priorities e g by assign ing a lower reference priority to a noisy reference or a reference with a significant phase off set or to automatically failover...

Страница 189: ...r validation in combination with automatic failover The phase error validation calculates long term averages and standard deviations of the phase offset between the monitored external reference and th...

Страница 190: ...the box next to 1PPS Phase Validation and click Submit 3 3 2 3 BroadShield What is BroadShield BroadShield is an optional software module for NetC lock that is capable of detecting the presence of GP...

Страница 191: ...t navigate to TOOLS SYSTEM Upgrade Backup The center panel System Con figuration will list the Options installed in your unit 2 BroadShield only works with a u blox M8T receiver not with Trimble recei...

Страница 192: ...SETTINGS ALGORITHMS and ensure that Jamming and or Spoofing detection are enabled Configuring BroadShield To configure BroadShield 1 Navigate to MONITORING BroadShield If you cannot see the MONITORIN...

Страница 193: ...osition 2 Click USE in the GNSS 1 Position box to apply the settings 3 The default Alarm Threshold is 50 m i e any detected position shift beyond a 50 m circle around the HOME BASE position will cause...

Страница 194: ...as described below BroadShield Alarm If BroadShield detects a jamming or spoofing event NetClock will emit a BroadShield Crit ical Major Alarm see illustration below NetClock will go into Holdover ye...

Страница 195: ...e Dashboard panel displays up to 7 days of history data and a real time amplitude fre quency spectrum The headline background color indicates the current jamming spoofing status red jamming or spoofin...

Страница 196: ...on as determined by NetClock s GNSS receiver Satellites Used The number of satellites currently received by NetClock This number includes all satellites currently received for all enabled constellatio...

Страница 197: ...the displayed position differ from the actual antenna position the GPS signal is likely spoofed Note that the map data is not part of the BroadShield software but is downloaded from the Internet Hence...

Страница 198: ...term ine your position on earth NetClock s GNSS receiver utilizes the signal provided by the GNSS antenna The GNSS receiver analyzes the incoming GNSS data stream and supplies the GNSS time and 1PPS P...

Страница 199: ...e INFO button or the GEAR button to configure the GNSS settings or review GNSS reference status information Note that the configurable settings displayed in the configuration window are highly depende...

Страница 200: ...Main default and Satellite Data The Main tab Under the Main tab the following information will display Note Detailed information on the different parameters can be found in the sub sequent GNSS topic...

Страница 201: ...by the user in nanoseconds Antenna Sense OK green Open Check the antenna for the presence of an open Short Check the antenna for the presence of a short circuit Position NetClock s geographic positio...

Страница 202: ...e being tracked over time SNR over Time A graphical track of maximum SNR and minimum SNR In both graphs to see a legend of the graphical data and time specific status data click inside the graph choos...

Страница 203: ...pped with a GNSS receiver at all 1 Navigate to TOOLS SYSTEM Upgrade Backup 2 In the System Configuration panel locate the line item GNSS Receiver GNSS Receiver Models Spectracom strives to equip NetCl...

Страница 204: ...SS reception Yes within these permissible settings GPS Galileo GLONASS Beidou X X X X X X X X X X X X X X X X X X Note The augmentation systems SBAS and QZSS can be enabled only if GPS operation is co...

Страница 205: ...ics on page 192 3 3 3 3 Selecting a GNSS Receiver Mode When connected to a GNSS antenna that receives a GNSS signal NetClock can use GNSS as an input reference The factory default configuration allows...

Страница 206: ...t GNSS receiver mode is the Standard Mode It is the most accurate and hence the preferred GNSS receiver mode The Standard Mode can be used only for stationary applications i e the NetClock unit will n...

Страница 207: ...e This occurs frequently in areas with limited view of the sky e g urban canyons In Single Satellite Mode the GNSS receiver will be considered a valid input reference as long as a the receiver was abl...

Страница 208: ...will NOT detect the new position and hence provide an incorrect time For more information about the GNSS Survey see Deleting the GNSS Receiver Position on page 197 For more information on Receiver Mo...

Страница 209: ...ith u blox receivers Mobile with Trimble receivers not recommended Notes Trimble Res T and Res SMT GG receivers will report Land dynamics during a survey until the survey is complete Then the dynamics...

Страница 210: ...namics RES SMT GG receivers and u blox M8T receivers will automatically re survey on reboot after the system has been moved In Standard mode and Stationary Dynamics the unit will survey only once and...

Страница 211: ...in the GNSS configuration window INTERFACES GNSS 0 Edit allows you to enter an offset to the GNSS time and 1PPS reference in order to account for antenna cable delays or other latencies entered and di...

Страница 212: ...n expressed as decimal i e 66 0 66 Value is provided by cable manufacturer When using Spectracom LMR 400 or equivalent coaxial cable this formula equates to approx imately 1 2 nanoseconds of delay per...

Страница 213: ...GNSS Reference The GNSS 0 window opens 3 Locate the Reset Receiver box check it and click Submit 3 3 3 8 Deleting the GNSS Receiver Position The NetClock timing system requires the exact geographic p...

Страница 214: ...boot See Setting GNSS Receiver Dynamics on page 192 Sanitization The Delete Position command must also be used when sanitizing a NetClock unit ensuring that no trace of position data remains on the un...

Страница 215: ...GNSS antenna is installed and thus how good the reception is the self survey may be adequate for most applications Setting a Manual Position however i e manually applying your current geographic posi...

Страница 216: ...y e n t e r i n g y o u r p o s i t i o n Manually entering your position may not only reduce the time to first fix during initial installation it may also enable the unit to synchronize to satellite...

Страница 217: ...decimal 4 Determine your altitude Finding the altitude of your NetClock s antenna position is not as crucial as finding the latitude and longitude Looking up the altitude for your general area will su...

Страница 218: ...ned To learn more about determining which receiver model is installed in your unit and which GNSS constellations and combinations are supported see Determining Your GNSS Receiver Model on page 187 In...

Страница 219: ...pable of receiving multiple GNSS constellations sim ultaneously the table below shows which combinations are possible GPS Galileo GLONASS BeiDou X X X X X X X X X X X X X X X X X X Note The augmentati...

Страница 220: ...Clock allows you to enable QZSS by itself it is recommended to use it in combination with GPS Determining Which GNSS Satellites Are Received To see which GNSS satellites your NetClock is currently rec...

Страница 221: ...timing signal upon a cold start of the unit A GPS client The A GPS client is used to send assistance data to the GPS receiver This is most useful in areas with poor GPS reception The A GPS client func...

Страница 222: ...ence The GNSS screen will be displayed 2 In the GNSS Reference panel on the right click the GEAR button next to GNSS 0 3 In the GNSS 0 window locate the A GPS panel at the bottom Note The options disp...

Страница 223: ...accurately entering latitude longitude both in decimal degrees and altitude in meters WGS 84 of your antenna NetClock can use this data during the satellite tracking adjustment process which typicall...

Страница 224: ...s valid for 4 hours Note that you can specify for a Trimble RES SMT GG receiver how often the RINEX3 data is updated Generate Rinex File Every second This is not needed for u blox M8T receivers since...

Страница 225: ...ys 3 Click Submit to start logging ephemeris and almanac data 4 Once you submitted the changes verify that the setup was successful by clicking on Status and confirming that the indicator lamp for Ser...

Страница 226: ...r alarm are asserted There are no changes to NTP or any of the other outputs i e while in Hol dover mode NTP inside NetClock continues to be at the same Stratum level it was at before going into Holdo...

Страница 227: ...on the TFOM value and Phase Error Limit see Configuring the Oscillator on page 215 Note Changes made to the Holdover Timeout always take effect immediately If NetClock is in Holdover and the Holdover...

Страница 228: ...wo weeks but then loses GPS reception for an extended period of time while the ambient temperature remains stable This data can help you determine how long of a Holdover period can be tolerated based...

Страница 229: ...tomatically reset as soon as at least one reference has been restored returned for at least one second If GPS is restored and then lost again moments later the Holdover timer starts again with its ful...

Страница 230: ...stead If no external input reference such as GNSS IRIG etc is available or is temporarily lost NetClock may become an NTP Stratum 2 or higher reference If so configured NetClock can use a reference su...

Страница 231: ...m oscillator provides the greatest ability to extend the hold over period when input references are not present Extending the hold over period allows the unit to provide very accurate and useable time...

Страница 232: ...oldover see What is Holdover Timeout on page 211 Phase Error Limit Default 0 disables this feature Setting a Limit valid for for the Phase Error between an external 1PPS reference and the System 1PPS...

Страница 233: ...e larger the phase error estimate the larger the TFOM value will be For example TFOM 3 is reported when the estimated phase error is any value between 10 ns to less than 100 ns of the offset between t...

Страница 234: ...ion will cause a 1PPS out of specification alarm to be asser ted and the oscillator disciplining will change in order to speed up the alignment of the sys tem 1PPS to the selected reference causing it...

Страница 235: ...ce with excessive jitter will cause the phase error to be high The oscil lator disciplining control will gradually reduce the phase error over time Alternatively restarting the tracking manually see R...

Страница 236: ...be used to interpret oscillator performance Board temperature measured on the main board sometimes also referred to as System temperature CPU temperature Note Oscillator temperature is plotted over t...

Страница 237: ...the Delete icon in the top right hand corner will erase all current oscillator log data Clicking on the Download arrow icon will download the latest oscillator log data as a csv file 3 5 4 Oscillator...

Страница 238: ...BLANK PAGE 3 5 Managing the Oscillator 222 CHAPTER 3 NetClock User Reference Guide Rev 16...

Страница 239: ...ng topics are included in this Chapter 4 1 Powering Up Shutting Down 224 4 2 Notifications 227 4 3 Managing Users and Security 235 4 4 Miscellanous Typical Configuration Tasks 256 4 5 Quality Manageme...

Страница 240: ...For more information see Temperature Management on page 288 NetClock 9483 only The time display will reset and then start incrementing the time About 10 seconds after power up Starting up NetClock wil...

Страница 241: ...NetClock by using the HALT command offers the following advant ages over shutting the unit down via the AC ON OFF switch see NetClock 9400 Series Rear Panels on page 10 or otherwise interrupting the A...

Страница 242: ...re information on the keypad see Front Panel Keypad and Display on page 6 With a serial connection to the front panel serial port telnet connection or SSH connection type halt Enter to halt the unit f...

Страница 243: ...ations two events are generated One event occurs in the transition to a specified state and then another event occurs when transitioning back to the original state Examples of these are losing sync an...

Страница 244: ...revent the alarm Enable SNMP to send out an SNMP trap Send an email to the address specified in the corresponding Email Address column 4 2 1 Configuring Notifications To configure Notifications 1 Navi...

Страница 245: ...ee below and click Submit The columns under each tab are Event This is the event that will trigger the notification The events under each tab will vary according to context Mask Alarm Check here to en...

Страница 246: ...xample a mask alarm can be set for an In Sync event and a Not in Sync event but not for an In Holdover event 4 2 2 Notification Event Types The following types of events can be used to trigger notific...

Страница 247: ...re met i e the reception quality falls below the set number of satellites for the set amount of time an alarm is triggered The alarm notification feature described below allows you to be notified of a...

Страница 248: ...threshold set in the Minimum Satellites field before an alarm is triggered The alarm will be triggered when this time is reached By default this timeout value is set to 0 seconds As soon as the recei...

Страница 249: ...tup window provides a means to configure NetClock with the necessary settings to interface it with Exchange email servers and Gmail To set up Notification Emails 1 Navigate to MANAGEMENT OTHER Notific...

Страница 250: ...server name example exchange example com set smtp auth user user name set smtp auth password password set smtp auth login E x a m p l e I I S M T P i n t e r f a c e t o G m a i l set smtp smtp gmail...

Страница 251: ...cess You can add additional admin accounts to the pre installed administrator account spadmin factory The default factory account with the username spfactory is meant to provide access to Spectracom t...

Страница 252: ...Outputs and Option Cards MANAGEMENT Menu Network While the toggle switches in the Network Services panel are displayed user can not modify any of the network related configurations such as telnet FTP...

Страница 253: ...oot shutdown halt the unit 4 3 1 3 Rules for Usernames Length Usernames can be between 3 and 32 characters long Accepted characters All letters including the first must be lower case Numbers underscor...

Страница 254: ...noted that this may potentially limit remotely provided technical support User accounts can be created to have either limited user or full administrator rights Each user can be assigned his own login...

Страница 255: ...log files Changing Disciplining Setup options Changing configuration options for the following protocols or features NTP HTTPS SSH LDAP RADIUS SNMP with the exception of configuring SNMP notifications...

Страница 256: ...icy 3 The Password Security window will display Fill in the self explanatory fields and click Submit 4 3 2 2 The Administrator Password The factory default administrator login password value of admin1...

Страница 257: ...another desired value 1 Navigate to MANAGEMENT OTHER Change My Password 2 The Change Password window will display 3 In the Old Password field type the current password 4 In the New Password field typ...

Страница 258: ...window Changing the spadmin password via Web UI To change the spadmin password 1 Navigate to the MANAGEMENT OTHER Authentication window 2 Locate the spadmin entry in the Users table 3 Click the CHANGE...

Страница 259: ...e prompted to confirm the operation before the password is reset The spad min account password is now reset to admin123 To reset the spadmin account password via the serial port or SSH 1 Connect a PC...

Страница 260: ...password is changed in the LDAP server it automatically changes the login password for all of the appliances that are using the LDAP server to authenticate a user login In order to use the LDAP authe...

Страница 261: ...g You have a choice of Active Directory This will be used when the LDAP server is a Windows server Open LDAP This will be used when the LDAP server is a Linux UNIX server Server Base DN Specifies the...

Страница 262: ...se of LDAP referrals to be utilized in order to access locations that more likely hold a requested object LDAP Security Settings Under the LDAP Security tab you can upload and install the SSL required...

Страница 263: ...etC lock e g to eliminate expired certificates LDAP Group Settings Under the LDAP Group tab you can filter access by group To enable group authentication a Select the Enable group filter checkbox b En...

Страница 264: ...window displays Server The hostname s or IP address es of the LDAP server s that have been added Action After a server has been listed it can be removed by clicking the X button LDAP Server Status Thi...

Страница 265: ...dd additional server Enter the hostname or IP address of the LDAP server to be quer ied You may list multiple servers 4 3 Managing Users and Security CHAPTER 4 NetClock User Reference Guide Rev 16 249...

Страница 266: ...authentication via applications using any of these protocols Caution In order to utilize RADIUS authentication the account username on the RADIUS server must NOT be used with a local user account E x...

Страница 267: ...or NetClock to communicate with the RADIUS server default 0 5 Click Submit 4 3 4 2 Adding Removing a RADIUS Server To add a RADIUS authentication server or remove a server from the list 1 Navigate to...

Страница 268: ...nfirmation message The item has been added will be displayed if the server could be added and the server will be added to the list indic ating its status The server status can be DISABLED RADIUS servi...

Страница 269: ...exists However once the user deleted the local user3 account she will be able to login with the TACACS user3 account Sources of general reference information on TACACS https en wikipedia org wiki TACA...

Страница 270: ...is disabled UNREACHABLE This TACACS server cannot be reached REACHABLE This TACACS server can be reached 5 To remove a TACACS server from the list click the X button in the Actions column Note NetCloc...

Страница 271: ...lick on Web Interface Settings The Web Interface Set tings window will open 3 Click on the tab Security Level 4 Read the Caution statement and verify that you meet the requirements stated 5 Check the...

Страница 272: ...rds you allow the Certificate to expire someone deletes the Certificate and Private Keys and deletes the Host Keys you forget the Passphrase To regain access to the NetClock unit you must utilize the...

Страница 273: ...l To prevent inadvertent keypad operation it can be locked and unlocked from the Web UI Learn more about front panel keypad operation Front Panel Keypad and Display on page 6 The information display A...

Страница 274: ...24 hour format Timescale Local Clock This option configures the time scale for the LED time dis play The available options are UTC temps universel coordonn TAI Temps Atomique International GPS the ra...

Страница 275: ...seconds Network the default This option displays the current network settings If an option card is installed that provides additional network interfaces there will be additional network choices i e Ne...

Страница 276: ...No DST Always Standard Time the DST indicator won t ever be lit 4 Select the Lock Keypad check box if you want to lock the front panel keypad DEFAULT unlocked unchecked 5 Deselect the Allow Position D...

Страница 277: ...4 4 4 Creating a Login Banner A login banner is a customizable banner message displayed on the login page of the NetClock Web UI The login banner can be used e g to identify a unit Figure 4 2 Login ba...

Страница 278: ...of the window OR click Submit and log out of the Web UI and back in so as to see the banner on the actual login page 4 4 5 Show Clock Instead of the Web UI a large digital clock can be displayed on y...

Страница 279: ...a NetClock unit Figure 4 3 Spectracom TV400 series display clock The following procedure applies to Spectracom display clocks models TV400W and TV210W 1 Set up a Local Clock In the Web UI navigate to...

Страница 280: ...pens click the EDIT button 3 In ASCII Output 1 configuration window select Under Format Group Spectracom Under Format 1 Spectracom Format 0 and Under Timescale the Local Clock that you created in Step...

Страница 281: ...isy chain 6 TESTING Once the TV400W synchronizes the seconds will stop flashing and the time will read the Local Time configured in your NetClock If this does not happen check the configuration wiring...

Страница 282: ...pectracom continues to localize the NetClock Web UI into languages other than English e g French Additional languages will be displayed under the Language button in the top right corner of the screen...

Страница 283: ...an be accessed via the NetClock Web UI such as Time synchronization status including references GNSS satellites currently being tracked NTP sync status and current Stratum level Estimated time errors...

Страница 284: ...rrently synchronized to its references the front panel Sync light will also be green Orange indicates NetClock is not currently synchronized to its references the front panel Sync light will be red Ho...

Страница 285: ...anoseconds of the internal 1PPSs phase error with respect to the selected input reference if the input reference has excess ive jitter phase error will be higher 10 MHz Frequency Error An internal est...

Страница 286: ...graphs click the TRASHCAN icon Note that re populating the graphs with fresh data generated at a 1 min rate will take several minutes To download the logged data in csv format click the ARROW icon 4...

Страница 287: ...icular input reference click the cor responding INFO button The reference window being displayed will show additional status information and option card specific settings The type of input reference a...

Страница 288: ...to automatically failover to a different reference if certain quality thresholds are no longer met see Smart Reference Monitoring on the facing page NetClock allows Reference Monitoring by comparing...

Страница 289: ...error validation in combination with automatic failover The phase error validation calculates long term averages and standard deviations of the phase offset between the monitored external reference an...

Страница 290: ...n again Smart reference monitoring is OFF by default To turn it ON 1 Navigate to MANAGEMENT OTHER Disciplining 2 In the Status panel on the left click the GEAR icon The Oscillator Settings window will...

Страница 291: ...ode field indicates which transmission mode is being used for the given Ethernet port FULL duplex or HALF duplex Note that the Mode is auto negotiated by NetClock It can be changed only via the switch...

Страница 292: ...s on page 137 To refresh the information displayed click the REFRESH button circling arrows icon on the right side of the screen On the rear panel illustration click on an output connector to highligh...

Страница 293: ...ayed click the REFRESH button circling arrows icon In the illustration of the rear panel click on a connector to highlight the corresponding list entry Displaying the settings of a specific output The...

Страница 294: ...e user editable See also Configuring Outputs on page 137 4 5 1 8 Monitoring the Oscillator The Oscillator Management screen provides current and history status information on dis ciplining state and a...

Страница 295: ...rence with excessive jitter will cause the phase error to be high The oscil lator disciplining control will gradually reduce the phase error over time Alternatively restarting the tracking manually se...

Страница 296: ...can be used to interpret oscillator performance Board temperature measured on the main board sometimes also referred to as System temperature CPU temperature Note Oscillator temperature is plotted ove...

Страница 297: ...hoose in real time Clicking on the Delete icon in the top right hand corner will erase all current oscillator log data Clicking on the Download arrow icon will download the latest oscillator log data...

Страница 298: ...rences and outputs by clicking the INFO button u status information or the GEAR button u edit settings Monitoring a SPECIFIC Option To monitor the status of a selected option 1 Navigate to INTERFACES...

Страница 299: ...s NTP Status Summary provides a means to monitor NTP status and performance parameters relevant to your NetClock at a glance 1 To access the NTP Status Summary panel navigate to MANAGEMENT NETWORK NTP...

Страница 300: ...resentation of the system frequency off set over time Clicking on this graph in the NTP Status Summary panel will open a window in the main panel containing a larger more detailed view of the graph Se...

Страница 301: ...erformance Graph panel will appear 5 To select the statistics for a particular day select a date from the drop down list in the Select Day for Statistics field The default date is the present date Cli...

Страница 302: ...atus Summary panel locate the Frequency Offset graph 3 Click the graph in the NTP Status Summary panel 4 The NTP Performance Graph panel will appear the data may be displayed with a delay The X axis r...

Страница 303: ...ply button To display a higher resolution graph of a shorter time frame move one or both of the two sliders inwards The NTP Jitter Performance Graph To view the NTP Jitter performance graph 1 Navigate...

Страница 304: ...tClock is equipped with one cooling fan located behind the right hand side of the front panel and several hardware temperature sensors including the board temperature near the CPU the CPU temperature...

Страница 305: ...e which turns ON the fan by default This feature also allows for a custom temperature window to be set for the fan Fan Control Feature The Web UI Fan Control feature allows you to define a temperature...

Страница 306: ...n the fan ON if the measured temperature is over 40 C Temperature Monitoring You can monitor the unit s measured temperatures actively by inspecting the temperature graphs in the Web UI or passively b...

Страница 307: ...The graph for the Oscillator Temperature is displayed under MANAGEMENT OTHER Dis ciplining 4 5 Quality Management CHAPTER 4 NetClock User Reference Guide Rev 16 291...

Страница 308: ...indicate e g a problem with the fan Note that the oscillator tem perature will have a direct impact on its accuracy i e there is a strong correlation between dis ciplining performance and oscillator...

Страница 309: ...efore an alarm clearance is triggered The default temperature threshold value for both Minor and Major Alarms is 100 C With sim ultaneous alarm triggerings the Major Alarm will override the Minor Alar...

Страница 310: ...es Temperature Readout via CLI Temperature data can be read out via the CLI using the i2cget command E X A M P L E i2cget y 0 0x4d register i2cget returns temperature in Celsius in hex format No addit...

Страница 311: ...receiver will attempt to continue the normal acquisition and tracking process regardless of the antenna status The current draw measurements that will indicate an antenna problem are Under current in...

Страница 312: ...OR the Input references were not restored before the Hol dover period expired Time Sync alarm is asserted In Sync NetClock is synchronized to its selected Time and 1PPS reference inputs Not In Sync Ne...

Страница 313: ...hour The GNSS qualification log shows the number of satellites that were tracked followed by the number of seconds that the particular number of satellites were tracked during the hour 3600 seconds in...

Страница 314: ...ically while synchronizing to a reference Journal Log Displays log entries created for all configuration changes that have occurred such as creating a new user account for example Update Log Displays...

Страница 315: ...xternally if so desired The log entries for the logs can also be configured to be automatically sent to a Syslog Server for external log storage In order for these logs to be sent to a Syslog server e...

Страница 316: ...mp shows if events of the corresponding log category are stored remotely or locally The Logs Actions panel The Actions panel on the upper left corner of the Logs screen allows you to perform batch act...

Страница 317: ...isplaying a Logs overview see The Logs Screen on page 299 it is also possible to access individual NetClock logs 1 From the TOOLS drop down menu select the desired Logs category for example Alarms or...

Страница 318: ...Saving and Downloading Logs The NetClock Web UI offers a convenient way to save bundle and download all logs in one simple step This feature may be useful when archiving logs for example or for troubl...

Страница 319: ...mance data such as frequency error and phase error The data can be retrieved as a comma separated csv file that can be read and edited with a spreadsheet software such as Microsoft Excel You may want...

Страница 320: ...in the available fields see below for explanations 4 Click Submit The following log configuration options are available a Add Remove Remote Server The Syslog server s to which remote logs are sent Thi...

Страница 321: ...e server Note Regarding Facility and Priority values In addition to configuring the log entries to be sent to a specific location in the Syslog server the com bination of these two values also determi...

Страница 322: ...slog storage all log entries are displayed using Syslog formatting Each log entry contains the date and time of the event the source of the log entry and the log entry itself The time of all log entri...

Страница 323: ...r panel and as a SERVER NAME in any Log File configuration screen 6 Once a remote log server has been setup successfully do not forget to configure the logs to be sent to the remote server see Configu...

Страница 324: ...selects the server as that particular log s remote log server Note In the event that a syslog server does not support listening on the standard syslog port you may redirect the syslog port to the desi...

Страница 325: ...T OTHER Log Configuration 2 In the Actions panel click Clear All Logs 3 In the grey confirmation window click OK 4 5 2 10 Clearing Selected Logs Note NTP logs cannot be cleared To clear selected local...

Страница 326: ...d all configuration inform ation will be erased as part of the update See Backing up and Restoring Configuration Files on page 314 for details To roll back system elements to an earlier version select...

Страница 327: ...for details consult the above mentioned instructions for updating NetClock software To free up disk space a Delete old log files Tools Upgrade Backup Disk Status Clear All Logs b Delete old statistics...

Страница 328: ...by applying a license file OPT xyz Typically NetClock units are shipped with the license file pre installed reflecting the system con figuration as ordered If however a feature is to be activated aft...

Страница 329: ...les can be cleared via the Web UI Caution It is not possible to clear the Authentication logs and NTP logs Note Restoring configurations reloading a saved configuration erasing the stored GNSS locatio...

Страница 330: ...ation files to a PC for off unit storage If necessary in the future the original configuration of the NetClock can then be restored into the same unit The capability to backup and restore configuratio...

Страница 331: ...tion panel provides the following information System The model name of this unit and the software version currently installed Model The model number of this unit Serial Number The serial number of thi...

Страница 332: ...nding buttons in the bottom right corner The Disk Status panel The Disk Status panel provides information on the Compact Flash card memory usage This information is relevant for troubleshooting purpos...

Страница 333: ...f 4 7 2 3 Uploading Configuration Files To upload configuration files from a PC 1 Navigate to TOOLS SYSTEM Upgrade Backup 2 In the Actions panel click the Upload Configuration button 3 Click Choose Fi...

Страница 334: ...Configuration To restore the System Configuration 1 Navigate to TOOLS SYSTEM Upgrade Backup 2 In the Actions panel click Restore Configuration 3 Click OK in the grey confirmation window The system wi...

Страница 335: ...of the default settings may deviate from best practices recommendations though The following table outlines the differences between factory default and recommended configuration settings for your con...

Страница 336: ...to trace the unit s former usage This data may include but is not limited to logs con figuration settings IP addresses passwords GNSS geographic positioning data and network specific usage data From a...

Страница 337: ...sition Network settings can be changed if desired via the Web UI via the front panel or the serial command line interface The GPS position can be deleted via INTERFACES REFERENCES GNSS 0 Clean Configu...

Страница 338: ...4 Further Reading For more information on sanitization see Deleting the GNSS Receiver Position on page 197 Certificate of Volatility for NetClock Certificate of Volatility NetClock Additional informat...

Страница 339: ...35 5 3 Command Line Interface 380 5 4 ASCII Time Code Data Formats 387 5 5 IRIG Standards and Specifications 413 5 6 Technical Support 429 5 7 Return Shipments 430 5 8 License Notices 431 5 9 List of...

Страница 340: ...ed on the DC connector is applied to the DC power connector 3 See Unpacking and Inventory on page 29 Sync LED is off No valid Reference inputs avail able since power up 1 Make sure the Input Reference...

Страница 341: ...ble Make sure the antenna has a clear view of the sky Fault LED is blinking orange GNSS Antenna problem alarm is asserted 1 Verify GNSS antenna is connected to NetClock GNSS input connector 2 Check an...

Страница 342: ...ldover Examples of not being synced include When the Timing System has just booted up and has not yet synced to a ref erence When all input references were lost and Holdover Mode has since expired Tim...

Страница 343: ...zilla Firefox Internet Explorer Ver 8 Using different or older browsers may lead to some incompatibility issues 5 1 4 Troubleshooting Unable to Open Web UI With NetClock connected to either a stand al...

Страница 344: ...5 1 5 Troubleshooting via Web UI Status Page NetClock s Web UI includes pages that provide current remote status information about NetC lock The following table includes information that can be used a...

Страница 345: ...esent at the input connector 3 Verify DC input polarity MANAGEMENT NTP Setup page NTP Status Sum mary panel Stratum row Stratum 15 NTP is not syn chronized to its available input references NetClock m...

Страница 346: ...the minimum number of satellites With the GNSS antenna installed outdoors with a good view of the sky the view of the sky is not being blocked by obstructions NetClock will typically track between 5 1...

Страница 347: ...e on NetClock 9483 are not present input power may not be applied Or NetClock is not synchronized to its input ref erences and Signature Control is enabled Web UI Page Current Status Indication Troubl...

Страница 348: ...ndicated by the power light being green and the LED time display incrementing the 4 line LCD Information Display is capable of displaying data The Information Display can be configured to display diff...

Страница 349: ...ogram does not display any data when the keyboard Enter key is pressed either NetClock is not powered up or there is a problem with the connection between NetClock and the PC Using a multimeter ring o...

Страница 350: ...n on syncing Windows PC s see http support spectracom com articles How_To Synchronizing Windows Computers The last section of this document also contains troubleshooting assistance for Windows synchro...

Страница 351: ...System Software Software Versions older than 5 3 0 Note that failed update attempts may result in lost Disk Space on the NetClock Reboot the sys tem to erase unwanted update files Software Version 5 3...

Страница 352: ...16 on page 359 Option 13 1209 0A T1 E1 100 20 T1 E1 Out Module Option 13 on page 361 Contact sales spectracom com general inquiries regarding option module card functionality or availability If you do...

Страница 353: ...CII time generator e g another NetClock unit serving as an input reference in order to synchronize NetClock in con junction with or in lieu of other available inputs such as GNSS Accuracy Accuracy 100...

Страница 354: ...nder the name of the local clock you have set up Local timescale allows a Local Clock to apply a time offset for Time Zone and DST correction The incoming input time information may be provided as loc...

Страница 355: ...consecutive format message to be outputted Select None if only one output format is desired None will be the only choice avail able if Format 2 is None Signature Control Signature Control controls wh...

Страница 356: ...cal Clock to apply a time offset for Time Zone and DST correction The incoming input time information may be provided as local time but System Time may be configured as UTC time so internal computatio...

Страница 357: ...S 485 TX 3 GND 4 RS 485 TX ASCII Output 2 5 RS 485 TX 6 GND 7 RS 485 RX ASCII Input 8 RS 485 RX 9 GND 10 n a Not used 5 2 3 Accessing Option Module Settings via the Web UI The topics below describe We...

Страница 358: ...provides a status overview as well as access to the Status window and the Edit window Status window Under INTERFACES OPTION CARDS clicking subordinate indented entries will open the Status window pro...

Страница 359: ...input or out put you want to configure e g ASCII Output 0 Note If you have only one input or output of any type NetClock will num ber that input or output 0 Additional inputs or outputs will be number...

Страница 360: ...lock 9489 In Outputs on page 336 5 2 3 3 Configuring Option Module Inputs Outputs The configurable settings of any NetClock input or output interface are accessible through the Edit window of the opti...

Страница 361: ...te to the INTERFACES OPTION CARDS drop down menu and click the list entry of the option module identified above The option module s Status Summary panel opens 3 Click on the GEAR button next to the in...

Страница 362: ...e To view if an input or output is currently enabled or disabled go to the option module s Status Summary panel 1 Identify the name of the option module e g NENA and the name of the input or out put y...

Страница 363: ...LED green or DISABLED orange The current state of an input signal is indicated as VALID in green or INVALID in red The Status Summary panel will be refreshed automatically every 30 seconds Click the R...

Страница 364: ...lid and qualified the two indicators will then turn Valid Green 5 2 4 NENA Compliant Module NetClock 9483 is equipped with a NENA compliant module which provides IRIG support including support for all...

Страница 365: ...dent 100 1000 s format dependent Switch time 4ms max Table 5 7 NENA module specifications Figure 5 3 Rear plate of NetClock 9483 NENA compliant module 5 2 4 2 IRIG Output Specifications AM IRIG Output...

Страница 366: ...2 DB 9F RS 232 Input 25 VDC to 25 VDC 0 6VIL min 1 2VIL TYP 1 5VIH TYP 2 4VIH MAX Input impedance 3k RS 232 Output 5VDC minimum 5 4 VDC typical Output impedance 300 minimum 13 2 VDC to 13 2 VDC 1PPS O...

Страница 367: ...4 4 ASCII RS 485 and Alarms Relays Specifications Inputs Outputs 2 Two contact relay connections NC common NO Signal Type and Connector Terminal block Contacts Switch under max load of 30 VDC 2A Conta...

Страница 368: ...1 COMMON Out Common Contact 30 VDC 2A max switching power 7 Relay 2 NO Out Normally Open 30 VDC 2A max switching power 8 Relay 2 NC Out Normally Closed 30 VDC 2A max switching power 9 Relay 2 COMMON O...

Страница 369: ...k will number that input or output 0 Additional inputs or outputs will be numbered 1 or above The IRIG output Edit window offers the following configuration fields Signature Control Used to control wh...

Страница 370: ...CC 2004 IRIG spec 200 04 specified a location for year value if included in this field IEE 1344 C37 118 2005 IRIG B format with extensions Control Field contains year Leap Second and DST information S...

Страница 371: ...er latencies in the IRIG input The Offset value is entered and displayed in nanoseconds ns The available Off set range is 500 to 500 ms Each IRIG code specifies a carrier frequency that is modulated t...

Страница 372: ...e Data Formats on page 387 Choices are None NENA Spectracom Formats 0 1 2 3 4 7 8 9 1S NMEA GGA RMC ZDA message BBC Formats 1 2 3 PSTN 4 5 RMC ICD 153 Buffer Box Time Transfer Current Status EndRun En...

Страница 373: ...out on authorized con dition Signature control every second a message is generated in sync with the 1PPS Request On time A format message is generated in sync with 1PPS after the con figured request c...

Страница 374: ...I time source must be set correctly especially if other input references are enabled Failure to configure the Timescale of the ASCII input correctly could result in time jumps occurring in the System...

Страница 375: ...rovides NetClock with three 10 100 1000 Base T network interfaces in addition to the standard 10 100 Base T network interface 5 2 5 1 Gigabit Ethernet Module Specifications Inputs Outputs 3 Gigabit Et...

Страница 376: ...play the available Ethernet ports and their connection status Eth0 is the built in NetClock Ethernet port Eth1 through eth3 are the ports provided by the 1204 06 card To learn more about Ethernet setu...

Страница 377: ...k packet For information on configuring routing tables see Static Routes on page 64 and see Spec tracom Tech Note Routing of data across multiple networks Domains and Domain Name Servers DNS Each netw...

Страница 378: ...er Frame ESF SSM support E1 mode 2 048 MHz square wave frequency output 2 2 048 Mb sec data rate outputs Outputs are E1 frame all ones Supports CRC4 and CAS Multiframe SSM support Connector and Signal...

Страница 379: ...GR 499 G 703 Tip 6 T1 E1 output B1 GR 499 G 703 Ring 7 GND Ground Ground 8 T1 E1 output A2 GR 499 G 703 Tip 9 T1 E1 output B2 GR 499 G 703 Ring 10 GND Ground Ground 5 2 6 2 E1 T1 Output Edit Window T...

Страница 380: ...n selects the framing standard D4 Superframe Extended Super frame CRC 6 no CR C 6 or AIS T1 Encoding This option selects the encoding method B8ZS or AMI T1SSM Value This option selects the SSM quality...

Страница 381: ...M is enabled 5 2 7 PTP Grandmaster 1204 32 Precision Time Protocol PTP is a protocol that can be used to synchronize computers on an Eth ernet network The Precision Time Protocol PTP option module sup...

Страница 382: ...ing Information 1204 32 PTP Precision Timing Protocol Option Module Figure 5 8 Model 1204 32 option card rear plate 5 2 7 2 PTP Grandmaster 32 Edit Window 1 To configure this option card go to its Edi...

Страница 383: ...cess to three different tabs described below Top panel settings Enable PTP Enables Disables PTP Check the box to enable PTP Uncheck it to disable PTP Profile offers a choice of Default incl Enterprise...

Страница 384: ...ver is not requested or is requested but not avail able the PTP Module will use this IP address In the format with no leading zer oes or spaces where each is a decimal integer from the range 0 255 Net...

Страница 385: ...the packet identifier Sequenced When the Master Clock is set in Multicast mode this module will deny the requests from the Slaves Clocks to run in Unicast mode When the Master Clock is set in Unicast...

Страница 386: ...transport protocol used for PTP packets Clock Class Set Parameter broadcast in a PTP profile indicating the quality of the attached reference PTP default ARB ITU Telecom1 See also ESMC Signal Control...

Страница 387: ...roadcast Output Disabled in Holdover The output uses the selected SSM code unless the NetClock references are considered not qualified and invalid the output is not present while in the Holdover mode...

Страница 388: ...ster Clock on the network Passive PTP Module has become a Passive Master Clock There is another Master Clock on the network with better quality or higher priority This Master will wait until the Best...

Страница 389: ...ve to its UTC reference see IEEE Standard 1588 2008 Section 7 6 2 5 Offset Scaled Variance A constant value based on the variance of the oscillator installed in the NetClock unit Clock Class A number...

Страница 390: ...Disabled PTP Ethernet port is Disabled See PTP Setup Network page PTP Net work Settings options Initializing Ethernet link is unplugged PTP Module is in power up state A Master Clock doesn t leave th...

Страница 391: ...Peer to Peer Mechanism Disabled No Delay Mechanism Default setting E2E Note Peer to Peer Delay Mechanism is only applicable on networks equipped with Transparent Clocks switches routers IEEE 1588 com...

Страница 392: ...up C lock page A valid IP address is currently being used check the Ethernet Settings on the PTP Setup Network page When the PTP Module is set to be a Master Clock the module will immediately attempt...

Страница 393: ...lock The BMC algorithm selects the Best Master Clock on the network from the following criteria i The BMC algorithm first selects the clock having the higher Priority1 parameter a lowest value means a...

Страница 394: ...ode To enter the Unicast mode perform the following steps 1 In the GB PTP Edit window navigate to the Advanced tab 2 Confirm that Unicast Sync is checked The 1204 32 PTP module should always respond t...

Страница 395: ...a DHCP Server The default setting is enabled the box is checked Static IP Address When a DHCP server is not requested or is requested but not available the PTP Module will use this IP address In the f...

Страница 396: ...e interval granted by the Master Clock In packets per second Max Announce Duration The maximum value of the Announce interval granted by the Master Clock In seconds Min Delay_Req Interval In packets p...

Страница 397: ...tor and newer Microsoft oper ating systems no longer include HyperTerminal However there are several third party open source programs available such as TeraTerm or PuTTY The example below illustrates...

Страница 398: ...indow or the Terminal window The default user name is spadmin and the password admin123 4 Using the Terminal window you can now submit commands see CLI Commands below for a list of commands 5 3 2 CLI...

Страница 399: ...n perform set commands or change reset password Refer to Adding Deleting Changing User Accounts on page 237 for user account setup information Command Description clean Restores NetClock configuration...

Страница 400: ...lays the DNS hostname hostset Sets the DNS hostname hotstart Initiate a hot start operation on the SAASM GPS receiver ip4get Displays IPv4 Ethernet port information IP address net mask and gateway ip4...

Страница 401: ...ity table radius setretry value Sets how many radius login retries will be attempted radius getretry value Gets the number of radius login retry attempts radius server list Lists radius servers radius...

Страница 402: ...an entry in the reference priority table index 0 15 state 0 dis able 1 enable status Displays information about the oscillator disciplining syncstate Display timing system synchronization state sysupg...

Страница 403: ...A Format provides essential fix data which includes 3D location and accuracy data E x a m p l e m e s s a g e GPGGA 123519 00 4807 038 N 01131 000 E 1 08 0 9 545 4 M 46 9 M 47 NOTE The GGA format does...

Страница 404: ...ID number 47 Checksum data always begins with 5 4 2 NMEA RMC Message NMEA Message Format RMC Recommended Minimum provides fix information speed over ground and Magnetic Variance information E x a m p...

Страница 405: ...om Format 0 Format 0 is the universal NENA format along with formats 1 2 and 3 Format 0 includes a time synchronization status character day of year time reflecting Time Zone Offset and DST correction...

Страница 406: ...ronization lamp is red When the receiver time is derived from the battery backed clock or set manually through the Setup Port Interface The Daylight Saving Time indicator D is defined as S During peri...

Страница 407: ...2 3 10 11 whereas other systems need to see a two digit day of the month for all days 1 through 9 with a leading 0 instead of a space 01 02 03 10 11 If your device requires the two digit day of the mo...

Страница 408: ...12 45 36 5 4 6 Spectracom Format 1S Format 1S Space is very similar to Format 1 with the exception of a space being the first char acter of Days 1 through 9 of each month instead of the leading 0 whi...

Страница 409: ...or MM Minutes 00 59 SS Seconds 00 60 The leading edge of the first character CR marks the on time point of the data stream The time synchronization status character I is defined as described below Whe...

Страница 410: ...Format 2 data structure is shown below Note Format 2 cannot be configured for a Time Zone Offset or with automatic Daylight Saving Time adjustment Attempting to configure a Local clock using Data Form...

Страница 411: ...Quality indicators below lists the quality indicators and the corresponding error estimates based upon the GNSS receiver 1PPS stability and the time elapsed tracking no satellites The Tracking Zero Sa...

Страница 412: ...Time 12 45 36 UTC time Standard time is in effect 5 4 8 Spectracom Format 3 Format 3 provides a format identifier time synchronization status character year month day time with time zone and DST corre...

Страница 413: ...the Serial Com or Remote port is con figured A time difference of 0500 represents Eastern Time UTC is represented by 0000 The Daylight Saving Time indicator D is defined as S During periods of Standa...

Страница 414: ...e FFFF Format Identifier 0004 I Time Sync Status Space MJDXX Modified Julian Date Space separator HH Hours 00 23 UTC time MM Minutes 00 59 SS SSSS Seconds 00 0000 60 0000 L Leap Second Indicator space...

Страница 415: ...s a time data stream with millisecond resolution The Format 7 data stream consists of indicators for time synchronization status leap second and Daylight Saving Time Time data reflects UTC time and is...

Страница 416: ...e synchronization lamp is red When the receiver time is derived from the battery backed clock or set manually through the Setup Port Interface The leap second indicator L is defined as Space When a le...

Страница 417: ...or and the Time Zone Offset value Format 8 data structure is shown below E x a m p l e CR LF I YYYY DDD HH MM SS D XX CR LF or CR LF I YYYY DDD HH MM SS D XX CR LF Where CR Carriage Return LF Line Fee...

Страница 418: ...00 59 SS Seconds 00 59 00 60 for leap second Q Time Sync Status as INPUT space SYNC SYNC NOT IN SYNC NOT IN SYNC NOT IN SYNC Q Time Sync Status as OUTPUT space Time error is less than time quality fla...

Страница 419: ...ectracom Epsilon Formats 5 4 13 1 Spectracom Epsilon TOD 1 This message corresponds to the TOD 1 format provided by EPSILON 2S 3S Series products on RS232 422 ports The structure of this format is as...

Страница 420: ...Line Feed ASCII Character 10 0x0A 5 4 13 2 Spectracom Epsilon TOD 3 This message corresponds to the TOD 3 format provided by EPSILON 2S 3S Series products on RS232 422 ports The structure of this for...

Страница 421: ...Character 13 0x0D LF Line Feed ASCII Character 10 0x0A 5 4 14 BBC Message Formats 5 4 14 1 Format BBC 01 This format is based on string ASCII characters and is sent once per second It provides year m...

Страница 422: ...uch that the final 99 occurs at 0 msec and 500 msec Number of bytes 26 Format START Year Month Day Hour Min Sec AA AA 07 DA 06 16 13 59 01 Millisecond Time Zone Daylight Leap second Sign Leap second M...

Страница 423: ...start identifier but excludes the 9999 end identifier 5 4 14 3 Format BBC 03 PSTN The third format is a string ASCII characters and is sent on a received character The message should be advanced by an...

Страница 424: ...cters 7 including CR s command NetClock transmits the status information on request Input format s CR Output Format status Number of output characters 1 Where returned values for status are G System G...

Страница 425: ...ho Hours 00 23 mi Minutes 00 59 sc Seconds 00 59 dw Day of week 01 Monday to 7 Sunday da Day of month 01 31 mo Month 01 12 ye Year 00 99 lp 0 for 60s no leap or 1 for 61s leap cs Checksum This is calc...

Страница 426: ...807 038 N 01131 000 E 022 4 084 4 230394 003 1 W 6A Where RMC Recommended Minimum sentence C 123519 Fix taken at 12 35 19 UTC A Status A active or V Void 4807 038 N Latitude 48 deg 07 038 N 01131 000...

Страница 427: ...lled data is included in the messages hence no SAASM GPS receiver is required The ASCII Output supports two configurations for supporting SINCGARS A configuration of Time Transfer as Message Format1 a...

Страница 428: ...et to UTC implies time is ahead of UTC ZZ The magnitude of the offset to UTC in units of half hours If ZZ 0 then z m Time mode character is one of G GPS L Local U UTC T TAI CR Carriage Return LF Line...

Страница 429: ...nt leap seconds FF The future leap seconds which will show a leap second pending 24 hours in advance CR Carriage Return LF Line Feed 5 5 IRIG Standards and Specifications 5 5 1 About the IRIG Output R...

Страница 430: ...that is modulated to encode date and time as well as control bits to time stamp events Initially IRIG applications were primarily military and gov ernment associated Today IRIG is commonly used to sy...

Страница 431: ...100 pps 1 sec IRIG B B004 DCLS N A BCDTOY BCDYEAR CF and SBS 100 pps 1 sec IRIG B B005 DCLS N A BCDTOY BCDYEAR and CF 100 pps 1 sec IRIG B B006 DCLS N A BCDTOY BCDYEAR 100 pps 1 sec IRIG B B007 DCLS N...

Страница 432: ...Hz BCDTOY 10 pps 1 sec IRIG E E113 AM 100 Hz BCDTOY SBS 10 pps 1 sec IRIG E E114 AM 100 Hz BCDTOY BCDYEAR CF and SBS 10 pps 1 sec IRIG E E115 AM 100 Hz BCDTOY BCDYEAR and CF 10 pps 1 sec IRIG E E116...

Страница 433: ...o individual IRIG Time Code description figures and text IRIG Standard 200 98 format B had 27 control bits and format E had 45 bits for control functions These control bits could be used for any use a...

Страница 434: ...feature may be enabled for any IRIG out put Signature control removes the modulation code when a Time Sync Alarm is asserted 5 5 3 IRIG B Output The IRIG B Time Code description follows Figure 5 10 IR...

Страница 435: ...first CF IRIG formats reserve a set of elements known as Control Functions CF for the encoding of various control identification or other special purpose functions IRIG B has 27 Control Functions loca...

Страница 436: ...cond The reference marker appears as two consecutive pos ition identifiers The second position identifier marks the on time point for the succeeding code word Resolution Pulse width coded signal 10 mi...

Страница 437: ...ied IRIG B code The FAA modified the IRIG B code by including satellite lock status and time error flags in the Control Function Field The error flags provide an inaccuracy estimate based on the time...

Страница 438: ...Code word structure BCD Word seconds digits begin at index count 1 Binary coded elements occur between position identifier elements P0 and P5 7 for seconds 7 for minutes 6 for hours and 10 for days un...

Страница 439: ...seconds and a Binary 0 dur ing all other conditions of operation Element 58 580 ms is the 500 millisecond error flag Element 58 is set to Bin ary 1 when the expected time error is within 500 milliseco...

Страница 440: ...1 The binary coded subword elements occur between position identifiers P0 and P5 7 for seconds 7 for minutes 6 for hours 10 for days until the code word is complete An index marker occurs between the...

Страница 441: ...ons IRIG formats reserve a set of elements known as Control Functions CF for the encoding of various control identification or other special purpose func tions IRIG E has 45 Control Functions located...

Страница 442: ...de description Additional information The beginning of each 10 second time frame is identified by two consecutive 80 ms elements P0 and PR The leading edge of the second 80 ms element PR is the on tim...

Страница 443: ...tifiers P5 and P0 Any control function element for combination of control function elements can be programmed to read a binary one during any specified number of time frames Each control element is id...

Страница 444: ...ACE 79 PID P8 POSITION IDENTIFIER 80 28 SBS 20 81 29 SBS 21 82 30 SBS 22 83 31 SBS 23 84 32 SBS 24 85 33 SBS 25 86 34 SBS 26 87 35 SBS 27 88 36 SBS 28 89 PID P9 POSITION IDENTIFIER 90 37 SBS 29 91 38...

Страница 445: ...l Category Measured Accuracy IRIG A 30 ns IRIG B 30 ns IRIG G 30 ns IRIG NASA 30 ns IRIG E 30 ns IRIG AM Signal Category Measured Accuracy IRIG A 200 ns IRIG B 800 ns IRIG G 200 ns IRIG NASA 800 ns IR...

Страница 446: ...1 France Les Ulis Cedex 33 0 1 6453 3980 USA Rochester NY 1 585 321 5800 Table 5 17 Spectracom contact information Additional regional contact information can be found on the Contact Us page of the Sp...

Страница 447: ...opyright notice and this permission notice appear in supporting documentation and that the name University of Delaware not be used in advertising or pub licity pertaining to distribution of the softwa...

Страница 448: ...t atlsoft de hopf Elektronik serial line and PCI bus devices 4 Viraj Bais vbais at mailman1 intel com and Clayton Kirkwood kirkwood at strider fm intel com port to WindowsNT 3 5 5 Michael Barone micha...

Страница 449: ...g PARSE GENERIC driver 14 reference clocks STREAMS modules for PARSE support scripts syslog cleanup dynamic interface hand ling 29 Johannes Maximilian Kuehn kuehn at ntp org Rewrote sntp to comply wit...

Страница 450: ...ov Datum PTS clock driver 52 Harlan Stenn harlan at pfcs com GNU automake autoconfigure makeover various other bits see the ChangeLog 53 Kenneth Stone ken at sdd hp com HP UX port 54 Ajit Thyagarajan...

Страница 451: ...that any information and cryptographic algorithms used in this software are publicly available on the Internet and at any major bookstore scientific library and patent office worldwide More informati...

Страница 452: ...Bosselaers and Paulo Barreto is in the public domain and distributed with the following license version 3 0 December 2000 Optimised ANSI C code for the Rijndael cipher now AES author Vincent Rijmen v...

Страница 453: ...dl Theo de Raadt Niels Provos Dug Song Aaron Campbell Damien Miller Kevin Steves Daniel Kouril Per Allansson Redistribution and use in source and binary forms with or without modification are permitte...

Страница 454: ...NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED IN NO EVENT SHALL THE OpenSSL PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT INDIREC...

Страница 455: ...PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES LOSS OF USE DATA OR PROFITS OR BUSINESS INTERRUPTION HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NE...

Страница 456: ...ING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE Part 3 Cambridge Broadband Ltd copyright notice BSD Portions of this code are copyright c 2001 2003 Cam...

Страница 457: ...ight notice BSD Copyright c 2003 2004 Sparta Inc All rights reserved Redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions...

Страница 458: ...17 Table 4 1 Factory default facility and priority codes 305 Table 4 2 Default and recommended configurations 319 Table 5 1 Troubleshooting NetClock using the front panel Status LED indications 325 Ta...

Страница 459: ...4 1 NetClock front panel 224 Figure 4 2 Login banner example 261 Figure 4 3 Spectracom TV400 series display clock 263 Figure 4 4 Wiring the RS 485 signal 265 Figure 5 1 Rear panel NetClock Model 9489...

Страница 460: ...d Option Licensing NTP update Jan 2013 G 3411 General updates to reflect new software release 5 1 2 April 2014 8 multiple Changes pertaining to A GPS Software version 5 1 3 Web UI modifications V 5 1...

Страница 461: ...language support NTP Autokey not sup ported under 4 2 8p6 configuration of network access rules NTP over Anycast OSPF changes BGP new configuration via Expert Mode new May 2016 12 980 Extensive re de...

Страница 462: ...BLANK PAGE 446 NetClock User Reference Guide...

Страница 463: ...Backed Time 152 BBC Message Formats 405 BGP Border Gateway Protocol 127 Border Gateway Protocol BGP 127 Browser support 327 C Cable delay 196 Cannot access Unit 256 Certificate HTTPS 74 Classic UI 63...

Страница 464: ...22 91 105 106 125 126 127 131 139 142 152 161 167 168 173 174 210 214 216 220 227 229 230 268 273 280 295 324 326 328 330 332 334 371 Host disciplining 132 214 Host keys SSH 78 HTTPS 67 I Inaccessible...

Страница 465: ...rs 105 107 110 Servers 105 107 108 Setup screen 96 stratum 103 Symmetric Keys 118 time stamp 101 timescale 101 NTP Peer Preference 112 O Offset 140 Offset GNSS receiver 195 On time point 140 Oscillato...

Страница 466: ...Single satellite GNSS receiver mode 191 Smart reference monitoring 173 273 SNMP 84 SNMP traps 84 software version version number software 326 Specifications 19 Spectracom Format 389 SSH 77 SSH client...

Страница 467: ...310 Upgrade software 310 User time manually setting 149 Usernames rules 237 V Volatile memory 320 W Web Interface Settings 257 Web UI opening 53 Y Yellow PPS status light 173 273 Yellow status light...

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