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
Maintenance, Troubleshooting, and Technical Assistance PRELIMINARY
10-10 InterReach Unison User Guide and Reference Manual
PN 8700-10
620003-0
10.3 LED Troubleshooting Guide
The following troubleshooting guide is from the perspective that all Unison equip-
ment is installed, their cables are connected, and they are powered on; it is assumed
that the system was operating normally before the current problem. (Refer to
Section 6 for information on troubleshooting during initial installation of the system.)
Always use AdminManager, if possible, to troubleshoot the system. The LEDs are for
backup troubleshooting; although, an Expansion Hub uplink laser failure can only be
resolved using the
EH UL STATUS LED.
Begin with troubleshooting the Main Hub’s LEDs and then the Expansion Hub’s
LEDs. The RAU LEDs probably will not provide additional information for trouble-
shooting.