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
6-32 InterReach Unison User Guide and Reference Manual
PN 8700-10
620003-0
Connecting Multiple Main Hubs to a Simplex Repeater
or Base Station
You will need the following:
• 2 hybrid power combiner/splitters; one for uplink and one for downlink (2x1 for
two Main Hubs, 3x1 for three, 4x1 for four, etc.)
• 1 N-male to N-male coaxial jumper cable between each power combiner/splitter
and the base station
• 2 N-male to N-male coaxial jumper cables between each power combiner/splitter
and each Main Hub
Figure 6-4 on page 6-30 illustrates this procedure.
1. Connect the power combiner/splitters to the repeater or base station using N-male
to N-male coaxial jumper cables:
a. From the first power combiner/splitter to the repeater or base station
b. From the second power combiner/splitter to the repeater or base station
2. Connect the power combiner/splitters to the Main Hubs:
a. From the first Main Hub’s UPLINK port to the first power combiner/splitter
b. From the first Main Hub’s DOWNLINK port to the second power com-
biner/splitter
c. From the second Main Hub’s UPLINK port to the first power combiner/splitter
d. From the second Main Hub’s DOWNLINK port to the second power com-
biner/splitter
3. Check Main Hub LEDs.
After connecting and powering on the Main Hub, check all LEDs to ensure that
the system is operating properly.
NOTE: Use a 50 ohm terminator on any unused power combiner/splitter ports.