User's Manual
Table Of Contents
- SECTION 1 General Information
- SECTION 2 InterReach™ Unison System Description
- SECTION 3 Unison Main Hub
- SECTION 4 Unison Expansion Hub
- SECTION 5 Unison Remote Access Unit
- SECTION 6 Installing Unison Components
- 6.1 Installation Requirements
- 6.2 Safety Precautions
- 6.3 Preparing for System Installation
- 6.4 Unison Component Installation Procedures
- 6.5 Starting and Configuring the System
- 6.6 Interfacing a Main Hub to a Base Station or Roof-top Antenna
- 6.7 Connecting Contact Alarms to a Unison System
- SECTION 7 Installing and Using the AdminManager Software
- SECTION 8 Designing a Unison Solution
- 8.1 Maximum Output Power per Carrier at RAU
- 8.2 Estimating RF Coverage
- 8.3 System Gain
- 8.4 Link Budget Analysis
- 8.4.1 Elements of a Link Budget for Narrowband Standards
- 8.4.2 Narrowband Link Budget Analysis for a Microcell Application
- 8.4.3 Elements of a Link Budget for CDMA Standards
- 8.4.4 Spread Spectrum Link Budget Analysis for a Microcell Application
- 8.4.5 Considerations for Re-Radiation (over-the-air) Systems
- 8.5 Optical Power Budget
- 8.6 Connecting a Main Hub to a Base Station
- 8.7 Designing for a Neutral Host System
- SECTION 9 Replacing Unison Components in an Operating System
- SECTION 10 Maintenance, Troubleshooting, and Technical Assistance
- APPENDIX A Cables and Connectors
- APPENDIX B Compliance
- APPENDIX C Glossary
PN 8700-10 Help Hot Line (U.S. only): 1-800-530-9960 2-3
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PRELIMINARY System Hardware
2.2 System Hardware
The InterReach Unison system consists of three modular components:
• 19" rack-mountable Main Hub (connects to up to 4 Expansion Hubs)
• Converts RF signals to optical on the downlink; optical to RF on the uplink
• Microprocessor controlled (for alarms, monitoring, and control)
• Software configurable band
• Simplex interface to any RF source
• System master – periodically polls all downstream units (Expansion
Hubs/RAUs) for system status, and automatically reports any warnings/alarms
• 19" rack-mountable Expansion Hub (connects to up to 8 Remote Access Units)
• Converts optical signals to electrical on the downlink and electrical signals to
optical on the uplink
• Microprocessor controlled (for alarms, monitoring, and control)
• Software configurable band (based on command from Main Hub)
• Supplies DC power to RAU
• Remote Access Unit (RAU)
• Converts electrical signals to RF on the downlink; RF to electrical on the
uplink
• Microprocessor controlled (for alarms, monitoring, and control)
• Protocol/band specific units
The minimum configuration of a Unison system is one Main Hub, one Expansion
Hub, and one RAU (1-1-1). The maximum configuration of a system is one Main
Hub, four Expansion Hubs, and 32 RAUs (1-4-32). Multiple systems can be com-
bined to provide larger configurations.