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
Installing Unison Components PRELIMINARY
6-28 InterReach Unison User Guide and Reference Manual
PN 8700-10
620003-0
Connecting a Duplex Base Station to a Main Hub:
When connecting to a duplex base station, use a circulator between it and the Main
Hub.
You can insert attenuators between the circulator and Main Hub as needed; refer to
Section 8.6.1 on page 8-48 for more information.
1. Connect an N-male to N-male coaxial cable to the duplex connector on the base
station.
2. Connect the other N-male connector to a circulator.
3. Connect an N-male to N-male coaxial cable to the DOWNLINK connector on the
Main Hub.
4. Connect the other end of the N-male coaxial cable to the transmit connector on the
circulator.
5. Connect an N-male to N-male coaxial cable to the UPLINK connector on the Main
Hub.
6. Connect the other end of the N-male coaxial cable to the receive connector on the
circulator.
Figure 6-2 Duplex Base Station to a Main Hub
N-male to N-male
Coaxial Cable
Base Station
Duplex
T1/E1 to
Mobile
Switching
Center
Insert attenuator, if needed
N-male to N-male
Coaxial Cable
Circulator