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
Unison Expansion Hub PRELIMINARY
4-4 InterReach Unison User Guide and Reference Manual
PN 8700-10
620003-0
4.1.1 RJ-45 Connectors
The eight RJ-45 connectors on the Expansion Hub are for the Cat-5/6 ScTP cable that
is used to transmit and receive signals to and from RAUs. Use shielded RJ-45 con-
nectors on the Cat-5/6 cable.
The Cat-5/6 cable also delivers DC electrical power to the RAUs. The Expansion
Hub’s DC voltage output is 36V DC nominal. A current limiting circuit is used to
protect the Expansion Hub if any port draws excessive power.
4.1.2 Optical Fiber Uplink/Downlink Connectors
The optical fiber uplink/downlink port transmits and receives optical signals between
the Expansion Hub and the Main Hub using industry-standard SMF or MMF cable.
The fiber port has two female SC/APC connectors:
• Optical Fiber Uplink Connector
This connector (labeled
UPLINK) is used to transmit (output) uplink optical signals
to the Main Hub.
• Optical Fiber Downlink Connector
This connector (labeled
DOWNLINK) is used to receive (input) downlink optical sig-
nals from the Main Hub.
CAUTION: To avoid damaging the Expansion Hub’s fiber con-
nector port, use only SC/APC fiber cable connectors.