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
Replacing Unison Components in an Operating System PRELIMINARY
9-2 InterReach Unison User Guide and Reference Manual
PN 8700-10
620003-0
Checking the RAU’s LEDs
1. The RAU’s LINK and ALARM LEDs should blink (green/red) on power up.
• If the LEDs do not blink on power up, replace the RAU.
2. After several seconds both LEDs should change to green, which indicates that the
unit has been successfully replaced, there is communication with the Expansion
Hub, and the RAU band is correct.
a. If the LINK LED remains green and the ALARM LED remains red, verify that
the RAU model is correct for the intended frequency band.
– Disconnect the cable and then reconnect it once; doing this more than once
will not change the result.
b. If both LEDs still don’t change to green, use the AdminManager to determine
the exact nature of the fault and see a recommendation of how to correct it.
c. If both LEDs turn red (after 45 seconds), the Expansion Hub has terminated
communications.