Installation Guide
Table Of Contents
- Installation Guide
- Table of Contents
- List of Figures
- Chapter 1: Introduction
- Chapter 2: Site Installation
- 2.1 Scope of This Chapter
- 2.2 Wayside
- 2.3 On-board
- 2.4 Grounding
- Appendix A: Antenna Guidelines
- Appendix B: Terminology
- Appendix C: Revision History
FinMInstallationGuide DQ0266070/A.01 2‐28
SynchronizationUnits SiteInstallation
GSU
GSUs(GPSSynchronizationUnit)areoutdoordevicesthatreceiveaGPSclocksignaland
distributesthisoverthewa ysidenetwork.
AGSUismountedinthesamemannerasTBSexternalantennas(seeTBSAntennason
page 2‐17),andcanbemountedonaverticalorhorizontalpole,orawall.
TheexternalconnectionsoftheGSUareshowninFigure 2‐56,below.
ConnecttheexternalGPSantennatotheantennaport(labeled“GPS”ontheunit),andaPoE
unitwithbothethernetandpowertothe“IDU”port.The“Sync”portisusedwhenworking
withanexternalHubSiteSynchronizationunit(HSSunit),whichisnotusuallyrelevantfor
FinMprojects.
Figure2‐56:GSUExternalconnections
Verticalpole Horizontalpole Wall
Figure2‐55:MountedGSUs
FOR REGULATORY REVIEW