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Table of Contents
Summary of Contents for World Time Solutions GPS6000-DEC
- Page 1 GPS6000-DEC Remote GNSS Decoder User Manual Version 1.0...
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Page 2: Rohs Compliance
All registered trademarks and trademarks are property of their respective owners. In the event of failure, the GPS6000-DEC should be returned to the manufacturer for inspection and repair. Please visit our support pages for further details: RoHS COMPLIANCE www.worldtimesolutions.com/support.html... - Page 3 GNSS systems in large buildings, where long RF cable runs would be impractical. The GPS6000-DEC is compatible with a range of GNSS antenna, lightning arrester and coaxial cabling options (available separately). 1.2 - The GNSS decoder The GNSS decoder converts satellite data into highly accurate time information.
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Page 4: System Installation Overview
CABLE DELAY OFFSET GPS6000-DEC ANTENNA STATUS GPS6000 - GNSS TIME DECODER Output cable (CAT 5 Structured Cabling or Belden 9502) Time server Figure 2.1 - GPS6000-DEC installation overview (including optional accessories) GPS6000-DEC - GNSS Decoder - User Manual - Version 1.0... - Page 5 RG-58C/U TNC to TNC coaxial cable. If you are installing a system without a lightning arrester, the antenna should be connected directly to the GPS6000-DEC Remote Decoder using a pre-terminated RG-58C/U TNC to SMA coaxial cable. A range of pre-terminated cable lengths are available. Your sales advisor will be happy to assist you.
- Page 6 CAREFULLY W HEN I NSTALLING Y OUR L IGHTNING A RRESTER. 2.4 - Installing the GPS6000-DEC 2.4.1 - Mounting the GPS6000-DEC The GPS6000-DEC converts the raw satellite data into highly accurate time information. The decoder should be installed internally, close to the output of the lightning arrester.
- Page 7 2.4.3 - Connecting to the time server To enable simple installation into a data centre or office complex, the GPS6000-DEC Remote Decoder can be connected to your time server using category 5, category 5e or category 6 structured cabling. The GPS6000-DEC is supplied with a removable terminal block, allowing simple cable connections using a terminal screwdriver.
- Page 8 Section 2: Installing the GPS6000-DEC 2.5 - The cable delay offset The GPS6000-DEC is capable of providing time data accurate to within 30 nsec of UTC. At this level of accuracy, taking account of cable lengths becomes critical. Every metre of cable between the GNSS antenna and your time server causes an additional error of approximately 5 nsec (see note over page).
- Page 9 Figure 2.5 - Example 59m cable delay offset A NOTE REGARDING THE CABLE DELAY OFFSET ACCURACY: The GPS6000-DEC advances the time data by 5 nsec for every additional metre added to the cable delay offset value. This 5 nsec per metre value has been chosen as a good approximation to the velocity of propagation for RG-58C/U (at 66%, or 5.05 nsec/m).
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Page 10: System Operation
GNSS tracking), the computed reference location is stored and the GPS6000-DEC moves to high-accuracy timing mode. In this mode, the GPS6000-DEC is able to provide time data accurate to within 30 nsec of UTC. Note that if your GPS6000-DEC has previously performed a full self-survey and the location has not changed, a new self-survey will not be performed. -
Page 11: Synchronisation Status
3.4 - Synchronisation status The status LED provides a visual indication of the synchronisation status of your GPS6000-DEC. In normal operation, the status LED will be flashing green. A red LED indicates the system is not synchronised or there is an error. See table 3.1 for more details. - Page 12 BS EN 55032: 2015 +A1:2020 Immunity requirements: BS EN 55035: 2017 +A11:2020 Radio equipment directive: EN 303 413: V1.2.1 (2021-04) CE / UKCA: Meets all applicable directives RoHS: RoHS compliant GPS6000-DEC - GNSS Decoder - User Manual - Version 1.0...
- Page 14 World Time Solutions Limited Unit 2 Oxford Court, St James Road, Brackley, NN13 7XY, United Kingdom +44 (0) 1280 830 380 - sales@worldtimesolutions.com www.worldtimesolutions.com...
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