Orolia Spectracom EC20S Manuel utilisateur
SPECTRACOM LIMITED WARRANTY
© 2009-2018 Spectracom. All rights reserved.
The information in this document has been carefully reviewed and is
believed to be accurate and up-to-date. Spectracom assumes no
responsibility for any errors or omissions that may be contained in this
document, and makes no commitment to keep current the information in this
manual, or to notify any person or organization of updates. This User
Reference Guide is subject to change without notice. For the most current
version of this documentation, please see our web site at:
spectracom.com
Spectracom reserves the right to make changes to the product described in
this document at any time and without notice. Any software that may be
provided with the product described in this document is furnished under a
license agreement or nondisclosure 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 system, or
transmitted in any form or any means electronic or mechanical, including
photocopying and recording for any purpose other than the purchaser's
personal use without the written permission of Spectracom.
Other products and companies referred to herein are trademarks or
registered trademarks of their respective companies or mark holders.
Warranty Information
For a copy of Spectracom's Limited Warranty policy, see the Spectracom
website: http://spectracom.com/support/warranty-information
EPSILON CLOCK MODEL EC20S Spectracom
iii User’s Manual
TABLE OF CONTENTS
1. TERMINOLOGY ................................................................................................................................ 8
2. OVERVIEW........................................................................................................................................ 9
2.1 Main Features 9
2.2 Dimensions and Weight 10
2.3 Operating Environment 11
3. SAFETY PRECAUTIONS ................................................................................................................... 12
3.1 Power Supply 12
3.2 Safety during Adjustments, Maintenance and Repair 14
4. DELIVERY INSPECTION................................................................................................................... 15
4.1 Inventory 15
4.2 Inspection 15
5. FRONT AND REAR PANELS DESCRIPTION..................................................................................... 16
5.1 Front Panel Description 16
5.2 Back Panel Description 17
6. PUTTING THE EC20S INTO OPERATION ......................................................................................... 18
6.1 Preliminary Connections 18
6.2 Powering Up 18
6.3 Network Connection 19
6.4 Configuring the EC20S 19
6.5 Start-up sequence 20
7. POWER SUPPLY INTERFACE ........................................................................................................... 21
7.1 AC Power Supply Input 21
7.2 DC Power Supply Input 21
7.3 Redundancy System of the power supply 21
7.4 Power Supplies Monitoring 21
8. NETWORK INTERFACE .................................................................................................................... 22
Spectracom EPSILON CLOCK MODEL EC20S
iv User’s Manual
8.1 Ethernet Port 22
8.2 Network Services 23
8.2.1 DHCP Client .................................................................................................................................................23
8.2.2 HTTP SERVER.............................................................................................................................................23
8.2.3 SNMP SERVER............................................................................................................................................23
8.2.4 NTP SERVER...............................................................................................................................................23
8.2.5 TELNET SERVICE......................................................................................................................................24
8.2.6 FTP SERVICE ..............................................................................................................................................24
8.2.7 ICMP SERVICE ...........................................................................................................................................24
8.2.8 Monitoring the EC20S by means of nETWORK SERVICES ......................................................................24
9. SYNCHRONIZATION SOURCES ..................................................................................................... 25
9.1 Multi-GNSS Synchronization Source 25
9.2 External 1PPS Synchronization Source 26
9.3 External NMEA Datation Source 28
9.4 Synchronization Sources Monitoring 28
10. OPERATIONAL TASKS .................................................................................................................... 28
10.1 Selection of the Synchronization Source 28
10.2 Disciplining Algorithm –SFN Conditions 29
10.3 Synchronization Signals Distribution 31
10.3.1 Start-up sequence detail.................................................................................................................................32
10.3.2 Short loss of the GNSS source sequence detail.............................................................................................33
10.3.3 Source change sequence detail ......................................................................................................................34
10.3.4 Holdover sequence detail ..............................................................................................................................35
11. SIGNALLING INTERFACES ............................................................................................................. 36
11.1 Visual Signalling 36
11.2 Alarms Signaling 37
11.2.1 Urgent Alarms...............................................................................................................................................38
11.2.2 Non-Urgent Alarms.......................................................................................................................................38
EPSILON CLOCK MODEL EC20S Spectracom
v User’s Manual
12. DISTRIBUTION INTERFACE.............................................................................................................. 38
12.1 1PPS Outputs 39
12.2 10MHz Outputs 39
12.3 NMEA Output 39
13. WEB INTERFACE ............................................................................................................................. 41
13.1 Welcome Page 41
13.2 Upper task bar and page header 42
13.3 Clock Status page 44
13.3.1 Global Status .................................................................................................................................................45
13.3.2 Alarms...........................................................................................................................................................47
13.3.3 Output status..................................................................................................................................................51
13.3.4 GNSS Status..................................................................................................................................................52
13.4 Administrator Password page 55
13.5 Network Setup page 56
13.6 SNMP & Traps Setup page 58
13.7 Time & Synchronization Source Setup page 63
13.7.1 User-defined datation ....................................................................................................................................64
13.7.2 Datation Setup...............................................................................................................................................64
13.7.3 Synchronization Setup...................................................................................................................................66
13.7.4 Distribution Setup .........................................................................................................................................69
13.7.5 Distribution Status for “On Time” Mute Mode .............................................................................................70
13.8 GNSS Setup page 72
13.9 Power Setup page 75
13.10 Events Logging 76
13.10.1 Event Origin..................................................................................................................................................77
13.10.2 Event Gravity ................................................................................................................................................77
13.10.3 Events log filtering........................................................................................................................................77
13.10.4 Clear events log.............................................................................................................................................78
Spectracom EPSILON CLOCK MODEL EC20S
vi User’s Manual
13.10.5 Download events log.....................................................................................................................................78
13.11 Software Version 78
13.12 Software Upgrade 80
13.13 Admin Page 82
13.13.1 SYSTEM RESET..........................................................................................................................................83
13.13.2 PASSWORD CHANGE................................................................................................................................83
13.13.3 CONFIGURATION EXTRACTION............................................................................................................83
13.14 Reboot 84
14. SNMP INTERFACE........................................................................................................................... 86
14.1 MIB Description 86
14.1.1 SNMP STATUS PARAMETERS.................................................................................................................86
14.1.2 SNMP CONFIGURATION PARAMETERS...............................................................................................89
14.1.3 SNMP TRAPS...............................................................................................................................................92
15. COMMAND LINE INTERFACE (CLI)............................................................................................... 94
15.1 Network settings 94
15.2 SNMP settings 96
15.3 EC20S restart 96
16. LEAP SECOND APPLICATION........................................................................................................ 96
17. TECHNICAL FEATURES ................................................................................................................... 97
17.1 Phase Lock-in at Power-up 97
17.1.1 Warming-up ..................................................................................................................................................97
17.1.2 Lock-in Time with GNSS signal...................................................................................................................97
17.1.3 Phase Noise ...................................................................................................................................................97
17.1.4 Holdover Mode .............................................................................................................................................98
17.1.5 Short Term Stability (Allan Variance) ..........................................................................................................98
17.2 Temperature Stability 99
17.3 Electromagnetic Compatibility & ROHS COMPLIANCE 99
17.4 Safety 99
EPSILON CLOCK MODEL EC20S Spectracom
vii User’s Manual
18. MAINTENANCE ............................................................................................................................ 100
18.1 Periodic Verification and Calibration 100
18.2 Updating the Software Version 100
18.3 Spare Parts 100
18.4 Troubleshooting 100
18.5 Customer Support Information 101
19. APPENDIX.....................................................................................................................................102
19.1 NMEA Connector 102
19.1.1 Pin-Out........................................................................................................................................................102
19.1.2 NMEA Message Input.................................................................................................................................104
19.1.3 NMEA Message Output..............................................................................................................................105
19.2 ALARM & RS232 SERIAL PORT Connector 106
19.3 DC Connector 108
EPSILON CLOCK MODEL EC20S Spectracom
User’s Manual 8
1. TERMINOLOGY
1PPS One Pulse Per Second
1PPS driver Pulse signal obtained through division of the frequency driver
DHCP Dynamic Host Configuration Protocol
Frequency driver Frequency signal generated by the built-in oscillator
FTP File Transfer Protocol
GALILEO European positioning system
GLONASS GLObalnaya NAvigatsionnaya Sputnikovaya Sistema (RUS)
GNSS Global Navigation Satellite System
GPS Global Positioning System (US)
HTTP HyperText Transfer Protocol
ICMP Internet Control Message Protocol
IERS International Earth Rotation Service
IRIG Inter Range Instrumentation Group
MAC Medium Access Control
MIB Management Information Base
NMEA National Marine Electronics Association
NTP Network Time Protocol
OCXO Oven Controlled XTAL (Crystal) Oscillator
OID Object IDentifier
Rb Rubidium oscillator
S/A Selective Availability
SFN Single Frequency Network
SNMP Simple Network Management Protocol
TELNET TELetype Network
TRAIM Time Receiver Autonomous Integrity Monitoring
UTC Universal Time Coordinated
Spectracom EPSILON CLOCK MODEL EC20S
9 User’s Manual
2. OVERVIEW
2.1 MAIN FEATURES
The EPSILON CLOCK MODEL EC20S is a multi-GNSS Clock, providing the best cost-effective solution for
reliable, and 24-hour-a-day, uninterrupted applications. The EC20S is particularly well-suited for
broadcast operators requiring high quality, reliability and availability.
The EC20S is well dedicated to digital broadcast applications using SFN (Single Frequency Network)
mode. The EC20S gives the high reliability required at any step of the network, from SFN adapters to
high and medium power transmitters and gap fillers.
The EPSILON CLOCK MODEL EC20S provides accurate time and frequency synchronization.
Key parameters are:
•High performance OCXO or Rubidium oscillator disciplined by a GNSS synchronization source
through Epsiltime© smart predictive disciplining algorithm
•High performance holdover stability (2.10-10/day –OCXO STD version & 5 x 10-11/month-RUBIDIUM
version)
•AC and DC power supply redundancy
•Up to 10 x 1 PPS outputs
EPSILON CLOCK MODEL EC20S Spectracom
User’s Manual 10
•Up to 10 x 10 MHz outputs
•1 PPS and 10 MHz signals are phased locked, which helps prevent phase jump and wander between
time and frequency signals
•Remote monitoring via the Ethernet port thanks to built-in supervision interfaces (13 Web Interface,
14 SNMP Interface) - Stratum 1 time stamp over Ethernet 10/100 Base-T (RJ45 port).
•Local monitoring via signalling interfaces (11.1 Visual Signalling, 11.2, ALARMS Signalling).
2.2 DIMENSIONS AND WEIGHT
Width : 19" (441 mm), without bracket
Height : 1 U (44 mm).
Depth : 340 mm.
Weight : <4.7 kg.
Compatibility : 19” rack
The EC20S unit is compatible with 19” racks and can be mounted with slides. Screws to fix the slides on
the equipment sides are provides with the equipment. Use Slides Accuride, part number: DZ 2907-0020
Hub 559mm.
Table des matières
Manuels Horloge populaires d'autres marques
Silicon Laboratories
Silicon Laboratories SI5324 Manuel utilisateur
Heathkit
Heathkit GC-1005 Manuel utilisateur
Oregon Scientific
Oregon Scientific PRYSMA RMR221P Manuel utilisateur
Andrew O'Malley
Andrew O'Malley DOTKLOK Manuel utilisateur
ALGE-Timing
ALGE-Timing ASC3 Manuel utilisateur
Bodet
Bodet Profil 960 Manuel utilisateur
