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™
Acutime 2000
Synchronization Kit
User Guide
Part Number 45005-00-ENG
Revision A
April 2001
F
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Corporate Office Copyright and Trademarks Trimble Navigation Limited © 2001, Trimble Navigation Limited. All rights Timing and Synchronization Group reserved. No part of this manual may be 645 North Mary Avenue copied, reproduced, translated, or reduced to Post Office Box 3642 any electronic medium or machine-readable Sunnyvale, CA 94088-3642 form for any use other than with the U.S.A. Acutime™ 2000 GPS Smart Antenna, or Phone: +1-408-481-8940, 1-800-545-7762 Acutime 2000 Synchronization
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Software and Firmware License, Limited Warranty Exclusions and Disclaimer Warranty These warranties shall be applied only in the event This Trimble software and/or firmware product and to the extent that: (i) the Products and (the “Software”) is licensed and not sold. Its use is Software are properly and correctly installed, governed by the provisions of the applicable End configured, interfaced, maintained, stored, and User License Agreement (“EULA”), if any, operated in accordance with Tri
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TRIMBLE NAVIGATION LIMITED IS NOT Notices RESPONSIBLE FOR THE OPERATION OR FAILURE OF OPERATION OF GPS SATELLITES Class B Statement – Notice to Users. This OR THE AVAILABILITY OF GPS SATELLITE equipment has been tested and found to comply SIGNALS. with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits Limitation of Liability are designed to provide reasonable protection against harmful interference in a residential TRIMBLE’S ENTIRE LIABILITY UNDER
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Contents About This Manual Scope and Audience . . . . . . . . . . . . . . . . . . . . . . . . xix Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx Reader Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . xxi Related Information . . . . . . . . . . . . . . . . . . . . . . . . xxii Update Notes . . . . . . . . . . . . . . . . . . . . . .
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Contents 3 Acutime 2000 Installation 3.1 Choosing a Location . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.2 Mounting the Smart Antenna. . . . . . . . . . . . . . . . . . . . 3-4 3.3 Routing and Securing the Interface Cable . . . . . . . . . . . . . 3-5 3.4 Connecting the Host System . . . . . . . . . . . . . . . . . . . . 3-6 4 Acutime 2000 Connections 4.1 Interface and Power Connections. . . . . . . .
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Contents 5.5 Using the Acutime 2000 in Mobile Applications . . . . . . . . . 5-15 5.6 Customizing Acutime 2000 Operations . . . . . . . . . . . . . . 5-16 6 NTP Software Installation and Configuration 6.1 Network Time Protocol. . . . . . . . . . . . . . . . . . . . . . . 6-1 6.1.1 NTP Time Servers . . . . . . . . . . . . . . . . . . . . .6-2 6.2 Software Sources and Compatibility . . . . . . . . . . . . . . . . 6
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Contents 6.8 Monitoring NTP . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31 6.8.1 NTP Events on Windows NT . . . . . . . . . . . . . . .6-32 6.8.2 UNIX System Log Files . . . . . . . . . . . . . . . . . .6-34 6.8.3 NTPQ – The NTP Query Utility . . . . . . . . . . . . .6-35 A Trimble Standard Interface Protocol A.1 Interface Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 A.
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Contents B Timing Receiver Monitor B.1 Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 B.2 Main screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2 C NMEA 0183 C.1 The NMEA 0183 Communication Interface . . . . . . . . . . . . C-2 C.2 NMEA 0183 Message Format . . . . . . . . . . . . . . . . . . . C-2 C.3 NMEA 0183 Message Options . . . . . . . . . . . .
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Contents E.2.4 Running NTP with Event Polling Disabled . . . . . . . .E-12 E.2.5 Incorrect Port and Bad Data . . . . . . . . . . . . . . . .E-15 E.2.6 Serial Port is Unavailable . . . . . . . . . . . . . . . . .E-16 E.3 Compiling the NTP Distribution . . . . . . . . . . . . . . . . . . E-17 E.4 Windows NT Administration . . . . . . . . . . . . . . . . . . . . E-21 E.4.1 Controlling the NTP Service . . . . . . . .
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List of Figures Figure 1-1 Acutime 2000 GPS Smart Antenna Enclosure . . . . . . . 1-3 Figure 2-1 Connection Diagram . . . . . . . . . . . . . . . . . 2-3 Figure 3-1 Mounted Antenna . . . . . . . . . . . . . . . . . . 3-2 Figure 4-1 Acutime 2000 Interface Connector . . . . . . . . . . . 4-2 Figure 4-2 Acutime 2000 12-pin Connector format. . . . . . . . . . 4-3 Figure 5-1 PPS Qu
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List of Figures xii Acutime 2000 Synchronization Kit User Guide
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List of Tables Table 4-1 Mating Connectors . . . . . . . . . . . . . . . . . . . . . . . 4-4 Table 4-2 Acutime 2000 RS-422 Cable Pin-Out . . . . . . . . . . . . . 4-5 Table 4-3 Acutime 2000 RS-232 Cable Pin-Out . . . . . . . . . . . . . 4-6 Table 5-1 Default Satellite Mask Settings. . . . . . . . . . . . . . . . . 5-2 Table 5-2 Receiver Configuration (segment 2) . . . . . . . . . . . . . . 5-17 Table 5-3 OEM Configuration
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List of Tables Table A-11 Satellite Data Packets. . . . . . . . . . . . . . . . . . . . . . A-11 Table A-12 Customizing Receiver Operations . . . . . . . . . . . . . . . A-12 Table A-13 Advanced Packets . . . . . . . . . . . . . . . . . . . . . . . A-13 Table A-14 Command Packets Sent to the Receiver . . . . . . . . . . . . A-14 Table A-15 Report Packets Sent by GPS Receiver to User . . . . . . . . . A-16 Table A-16 Co
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List of Tables Table A-41 Report Packet 4B . . . . . . . . . . . . . . . . . . . . . . . . A-51 Table A-42 Byte 1 Bit Encoding – Status 1. . . . . . . . . . . . . . . . . A-51 Table A-43 Report Packet 4C . . . . . . . . . . . . . . . . . . . . . . . . A-52 Table A-44 Report Packet 4E . . . . . . . . . . . . . . . . . . . . . . . . A-53 Table A-45 Report UTC Parameters . . . . . . . . . . . . . . .
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List of Tables Table A-71 Command Packet 8E-14 . . . . . . . . . . . . . . . . . . . . A-87 Table A-72 Command Packet 8E-14 . . . . . . . . . . . . . . . . . . . . A-88 Table A-73 Command Packet 8E-20 . . . . . . . . . . . . . . . . . . . . A-89 Table A-74 Command Packet 0x8E-45 . . . . . . . . . . . . . . . . . . . A-90 Table A-75 Command Packet 8E-4A . . . . . . . . . . . . . . . . . . . . A-91 Table
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List of Tables Table A-101 Datums . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-126 Table C-1 NMEA 0183 Characteristics . . . . . . . . . . . . . . . . . . C-2 Table C-2 Acutime 2000 NMEA Messages . . . . . . . . . . . . . . . . C-4 Table C-3 GGA – GPS Fix Data Message Parameters . . . . . . . . . . C-5 Table C-4 GLL – Geographic Position – Latitude / Longitude Message Parameters . . . . . . . . . . .
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List of Tables xviii Acutime 2000 Synchronization Kit User Guide
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About This Manual Welcome to the Acutime 2000 Synchronization Kit User Guide. This manual describes how to integrate the Acutime 2000 smart antenna with your host system. Note The Acutime 2000 has replaced the Palisade and Palisade ! Network Time Protocol (NTP). It can be used with NTP (See Chapter 6) or as a stand-alone timing receiver. In some instances the term Palisade is still used in the screen captures and text in this manual. This will be updated in future revisions. Scope
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About This Manual Organization This manual contains the following: Chapter 1, Introduction, describes the Acutime 2000 GPS smart antenna. Chapter 2, Getting Started, describes how to quickly install, connect and operate the Acutime 2000. Chapter 3, Acutime 2000 Installation, provides general installation guidelines. Chapter 4, Acutime 2000 Connections, provides detailed interfacing guidelines for connecting the Acutime 2000 GPS smart antenna to the host system. Chapter 5, System
