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 Designing a Unison Solution
- SECTION 7 Installing Unison
- 7.1 Installation Requirements
- 7.2 Safety Precautions
- 7.3 Preparing for System Installation
- 7.4 Unison Component Installation Procedures
- 7.5 Splicing Fiber Optic Cable
- 7.6 Interfacing a Main Hub to a Base Station or a Roof-top Antenna
- 7.7 Connecting Contact Alarms to a Unison System
- 7.8 Alarm Monitoring Connectivity Options
- SECTION 8 Replacing Unison Components
- SECTION 9 Maintenance, Troubleshooting, and Technical Assistance
- APPENDIX A Cables and Connectors
- APPENDIX B Compliance
- APPENDIX C Changes and New Capabilities
- APPENDIX D Glossary
Help Hot Line (U.S. only): 1-800-530-9960 2-11
D-620003-0-20 Rev J CONFIDENTIAL
System Connectivity
2.3 System Connectivity
The double star architecture of the Unison system, illustrated in Figure 2-7, provides
excellent system scalability and reliability. The system requires only one pair of
fibers for eight antenna points. This makes any system expansion, such as adding an
extra antenna for additional coverage, potentially as easy as pulling an extra twisted
pair.
Figure 2-7 Unison’s Double Star Architecture
Main Hub
RS-232
PORT 1 PORT 2 PORT 3 PORT 4
Expansion Hub
Expansion Hub
Fiber
Expansion Hub
Expansion Hub
Cat-5/5E/6Cat-5/5E/6 Cat-5/5E/6
up to 8 RAUs per Expansion Hub
RAU RAU RAU