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AcutimeTM2000 Synchronization Kit, Part Number 45005-00-ENG
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Acutime 2000 Synchronization Kit User Guide
List of Figures
Contents
Main
Timing and Synchronization Group
User Guide, part number 45005-00-ENG. It
Page
Page
Contents
About This Manual
1 Introduction
2 Getting Started
3 Acutime 2000 Installation
4 Acutime 2000 Connections
5 System Operation
6 NTP Software Installation and Configuration
A Trimble Standard Interface Protocol
B Timing Receiver Monitor
C NMEA 0183
D Specifications and Drawings
E NTP Diagnostics and Debugging
F Theory of Operation
Glossary Index
List of Figures
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List of Tables
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About This Manual
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Scope and Audience
Organization
Reader Feedback
Related Information
Technical Assistance
Abbreviations
Document Conventions
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1 Introduction
1.1 Overview
1.2 Acutime 2000 GPS Smart Antenna Features
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1.3 Starter Kit
2 Getting Started
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2 2.2 Connecting the Computer and Power Source
PC
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3.2 Mounting the Smart Antenna
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3 3.3 Routing and Securing the Interface Cable
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4.1 Interface and Power Connections
Acutime 2000 Synchronization Kit User Guide 4-3
Figure 4-2 illustrates the pin arrangement for this connector.
Figure 4-2 Acutime 2000 12-pin Connector format
4.2 Interface Cables and Connectors
4.2.1 Pin-Outs
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Table 4-3 Acutime 2000 RS-232 Cable Pin-Out
4.3 Connection Instructions
4.3.1 Power Connection (Red and Black Wires)
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4.3.2 Timing Pulse Connections
4.3.3 Serial Port Connections
4.3.4 Event Input
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5 System Operation
5.1 Start-Up
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5.2 Automatic Operation
5.2.1 Satellite Masks
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5.2.2 Tracking Modes
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5.2.3 PPS Output Options
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5.2.4 PPS Quantization Error
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5.2.5 External Event Input
5.2.6 Cable Delay Compensation
5.3 Serial Data Communication
5.3.1 Port B
5.3.2 Port A (Timing)
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5.4 GPS Timing
5.4.1 Timing Operation
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5.5 Using the Acutime 2000 in Mobile Applications
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5.6 Customizing Acutime 2000 Operations
Table 5-2 Receiver Configuration (segment 2)
Table 5-3 OEM Configuration (segment 3)
Table 5-4 Port A and B Configuration (segment 4)
Table 5-5 PPS Configuration (segment 5)
Table 5-6 Position Information (segment 6)
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6 NTP Software Installation and Configuration
6.1 Network Time Protocol
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6.1.1 NTP Time Servers
6.2 Software Sources and Compatibility
6.2.1 Installation Support
6.3 Pre-Installation Check List
6.3.1 GPS Preparation
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6.3.2 Host System Preparation
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6.4 Time Transfer Cable Connection
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6.5.1 NTP Configuration File
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6.5.2 Acutime Configuration
6.5.3 Network Server Selection
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6.6 Windows NT Installation
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6.6.1 Automatic Installation
6.6.2 Manual Installation
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6.6.3 Starting the Service
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6.7.1 Create the Configuration File
6.7.2 Set Up Device Links
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6.7.3 Hardware Configuration
6.7.4 Copying Executable Files
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6.7.6 Start NTP
6.8 Monitoring NTP
6.8.1 NTP Events on Windows NT
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6.8.2 UNIX System Log Files
6.8.3 NTPQ The NTP Query Utility
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A Trimble Standard Interface Protocol
A.1 Interface Scope
A.1.1 Packet Structure
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A.2 Physical Interface Characteristics
A.2.1 Nomenclature
A.2.2 Protocol Capabilities
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A.2.3 Event Input
A.3 Packets Output at Power-Up
A.4 Receiver Warm Start
A.5 Default Background Packets for Acutime 2000
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A.8 Low-Latency Timing Packets
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A.9 Event Packets
A.10 Satellite Data Packets
A.11 Customizing Receiver Operations
The following packets let you customize receiver operations. Table A-13 Advanced Packets
A.12 Command Packets Sent to the Receiver
Table A-14 Command Packets Sent to the Receiver (Continued)
A.13 Report Packets Sent by the GPS Rec eiver to the User
Table A-15 Report Packets Sent by GPS Receiver to User (Continued)
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A.14 Packet Structure
<DLE> <id> <data string bytes> <DLE> <ETX>
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A.15 Packet Descriptions
0x1D
Oscillator Offset
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0x1E
Initiate Cold or Factory Reset
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0x1F
Software Versions Request
0x20
Almanac Request
0x21
Current Time Request
0x23
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0x26
Health Request
0x27
Signal Levels Request
0x28
GPS System Message Request
0x29
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0x2B
Initial Position (Latitude, Longitude, Altitude) Command
0x2D
Oscillator Offset Request
0x2E
GPS Time Command
0x2F
UTC Parameters Request
0x31
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0x32
Accurate Initial Position (Latitude, Longitude, Altitude) Command
0x34
Satellite Number For One-Satellite Mode Command
0x35
I/O Option Flags Command
Table A-22 Command Packet 35
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0x37
Last Position and Velocity Request
0x38
Download and UpLoad Satellite System Data
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Table A-23 Command Packet 38
0x39
Satellite Attribute Database Command
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0x3A
Last Raw Measurement Request
0x3B
Satellite Ephemeris Status Request
0x3C
Satellite Tracking Status Request
0x3D
Timing Port Configuration Command
0x3F-11
EEPROM Segment Commands
0x40
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0x42
Single-Precision Position Fix, XYZ ECEF Report
0x43
Velocity Fix, XYZ ECEF Report
0x45
Software Version Information Report
0x46
Health of Receiver Report
Table A-36 Report Packet 46
0x47
Signal Levels for all Satellites Report
0x48
GPS System Message Report
0x49
Almanac Health Page Report
0x4A
Reference Altitude or Single-Precision LLA Position Fix Report
"
0x4B
Machine/Code ID and Additional Status Report
0x4C
Operating Parameters Report
0x4D
Oscillator Offset
0x4E
GPS Time Change Acknowledgment
0x4F
UTC Parameters Report
0x54
Bias and Bias Rate Report
"
0x55
I/O Option Flags Report
0x56
Velocity Fix, East-North-Up (ENU) Report
0x57
Information About Last Computed Fix Report
0x58
Satellite System Data/Acknowledge from Receiver
Table A-50 Report Packet 58 ALMANAC Data Report
Table A-51 Report Packet 58 ALMANAC HEALTH Data Report
Table A-52 Report Packet 58 IONOSPHERE Data Report
Table A-53 Report Packet 58 UTC Data Report
Table A-54 Report Packet 58 EPHEMERIS Data Report
Table A-54 Report Packet 58 EPHEMERIS Data Report (Continued)
0x59
Satellite Attributes Database Report
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0x5A
Raw Measurement Data Report
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0x5B
Satellite Ephemeris Status Report
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0x5C
Satellite Tracking Status Report
(
<
Table A-58 Report Packet 5C (Continued)
0x5F-11
EEPROM Segment Status Reports
0x60
Type 1 Differential GPS Corrections
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0x61
Set Differential GPS Corrections
0x6D
All-In-View Satellite Selection Report
0x7A
Set or Request NMEA Interval and Message Mask
0x7B
NMEA Message Output
0x83
Double-precision XYZ Position Fix And Bias Information
0x84
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0xBB
Set Primary Receiver Configuration
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Table A-69 Command Packet BB (Continued)
0xBB
Report Receiver Configuration
0xBC
Set Port Configuration Parameters
0xBC
Request Port Configuration Parameters
Table A-70 Command Packet BC (Continued)
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0x8E-0B
Request or Configure Super Packet Output
0x8E-14
Set New Datum
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0x8E-15
Request Current Datum Values
0x8E-20
Request Last Fix with Extra Information
!
0x8E-26
Write Receiver Configuration to EEPROM
0x8E-41
Manufacturing Operating Parameters
0x8E-42
Production Parameters
0x8E-45
Revert Segments to Default Settings
0x8E-4A
Set/Request PPS Characteristics
0x8E-4D
Automatic Packet Output Mask
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0x8E-4E
Set PPS Output Option
Table A-77 Command Packet 8E-4D - Packets Affected By Bits
0x8E-4F
Set PPS Width
0x8E-A5
Set or Request Packet Broadcast Mask
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Table A-80 Command Packet 8E-A5
0x8E-A6
Issue Self-Survey Command
0x8E-A9
Set Self-Survey Parameters
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0x8E-AB
Request Primary Timing Packet
0x8E-AC
Request Supplemental Timing Packet
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0x8F-0B
Comprehensive Time
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0x8F-14
Current Datum Values
!
00x8F-20
Last Fix with Extra Information (binary fixed point)
Table A-88 Report Packet 8F-20
Table A-87 Report Packet 8F-20 (Continued)
0x8F-26
Response to Save EEPROM Segments
0x8F-41
Manufacturing Parameters
0x8F-42
Production Parameters
0x8F-45
0x8E-AD
Request or Configure Super Packet Output
0x8F-4A
PPS Characteristics
0x8F-4D
Automatic Packet Output Mask
0x8F-4E
0x8F-A5
0x8F-A6
0x8F-A9
0x8F-AB
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Table A-96 Report Packet 0x8F-AB
0x8F-AC
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The table below identifies the fields associated with packet 8F-AC. Table A-97 Report Packet 8F-AC
Table A-97 Report Packet 8F-AC (Continued)
0x8F-AD
Primary UTC Time
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A-126 Acutime 2000 Synchronization Kit User Guide
A.18 Datums
The table on the following pages lists datums. Table A-101 Datums
Acutime 2000 Synchronization Kit User Guide A-127
A-128 Acutime 2000 Synchronization Kit User Guide
Acutime 2000 Synchronization Kit User Guide A-129
A-130 Acutime 2000 Synchronization Kit User Guide
Acutime 2000 Synchronization Kit User Guide A-131
Index DX DY DZ A-axis Eccent ricity Des cription
A-132 Acutime 2000 Synchronization Kit User Guide
Acutime 2000 Synchronization Kit User Guide A-133
A.19 Sample TSIP Routines
Acutime 2000 Synchronization Kit User Guide A-135
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Acutime 2000 Synchronization Kit User Guide A-137
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B Timing Receiver Monitor
B.1 Start-Up
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C NMEA 0183
C.1 The NMEA 0183 Communication Interface
C.2 NMEA 0183 Message Format
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C.3 NMEA 0183 Message Options
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C.4 NMEA 0183 Message Formats
C.4.1 GGA GPS Fix Data
C.4.2 GLL Geographic Position Latitude/Longitude
C.4.3 GSA GPS DOP and Active Satellites
C.4.4 GSV GPS Satellites in View
C.4.5 RMC Recommended Minimum Specific GPS/Transit Data
C.4.6 VTG Track Made Good and Ground Speed
C.4.7 ZDA Time & Date
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Table C-9 ZDA Time & Date Message Parameters
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D Specifications and Drawings
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D.1 Acutime 2000 GPS Smart Antenna Specifications
Table D-2 Environmental Specifications
Table D-3 Performance Specifications
D
Table D-3 Performance Specifications (Continued)
Table D-4 Electrical Specifications
Table D-5 Serial Protocols
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D-6
Specifications and Drawings D
Part Number/Rev Level Label
Wires
50' 6"
1.6"0.1" REF 4.0" 1.0"
Pin 10 Pin 1 Pin 9 Pin 12 Pin 5
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E.1.2 Error Log Entries
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E.2 Running NTP in Debug Mode
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E.2.3 Acutime is not Responding
E.2.4 Running NTP with Event Polling Disabled
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E.2.5 Incorrect Port and Bad Data
E.2.6 Serial Port is Unavailable
E.3 Compiling the NTP Distribution
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E.4 Windows NT Administration
E.4.1 Controlling the NTP Service
E.4.2 Removing the NTP Service
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F Theory of Operation
F.1 GPS Satellite Message
F.2 Satellite Acquisition and Time to First Fix
F.2.1 Cold Start
F.2.2 Warm Start
F.2.3 "Garage Search" Strategy
F.2.4 Hot Start
F.3 Position Accuracy
F.3.1 Selective Availability (S/A)
F.4 Coordinate Systems
F.4 .1 T SI P
F.4.2 NMEA 0183
F.5 Performance Characteristics
F.5.1 Update Rate
F.5.2 Dyn amic Limits
F.5.3 Re-Acquisition
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F.6 System Architecture
Acutime 2000 Synchronization Kit User Guide F-11
Figure F-1 Acutime 2000 Block Diagram (RS-232 Version)
Figure F-2 Acutime 2000 Block Diagram (RS-422 Version)
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Glossary
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Index
A
C
D
E
G
H
I
M
R
S
T
U
W
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