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
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PRELIMINARY Troubleshooting Main Hub LEDs During Normal Operation
10.3.1 Troubleshooting Main Hub LEDs During Normal Operation
• All of the Main Hub’s LEDs should be green during normal operation. If any
LEDs are red, get status using the AdminManager software for the exact cause and
recommendations.
Table 10-7 Troubleshooting Main Hub Port LEDs During Normal Operation
During
Normal
Operation LED State Action Impact
Expansion
Hub Not
Connected
LINK
Red If the Expansion Hub was discon-
nected accidentally, re-connect the
cables. The LEDs should change to
Green/Red (then Green/Green, after
20 seconds, if the Main Hub band
has been programmed).
If the Expansion Hub is to be
removed from service permanently,
then use the AdminManager’s ‘Clear
All Disconnect States’ command to
clear all disconnect states to no con-
nect states. The Main Hub’s port
LEDs should change to Off/Off.
Expansion Hub was previously con-
nected, but it is not currently con-
nected; Expansion Hub cable
disconnect.
The AdminManager software will clear
all disconnects caused by installation
as part of the clean-up process. After
installation, power cycle the Main Hub
or use the AdminManager’s ‘Clear All
Disconnect States’ command.
E-HUB/RAU
Off
Expansion
Hub
Connected
LINK
Red Use the AdminManager to determine
the exact cause of the Main Hub’s
faults.
Lost communication with Expansion
Hub; could be Expansion Hub problem
or fiber cable problem.
E-HUB/RAU
Off
LINK
Green Expansion Hub or connected RAU
reports a fault condition; use the
AdminManager to determine the
exact cause of the Expansion Hub
and RAU’s faults.
E-HUB/RAU
Red
Table 10-8 Troubleshooting Main Hub Status LEDs During Normal Operation
During
Normal
Operation LED State Action Impact
At Any
Time
MAIN HUB
STATUS
Red Use the AdminManager to determine
the exact cause of the fault.
Power cycle one time. If fault
remains, replace the Main Hub.
Internal Main Hub fault.
MAIN HUB
STATUS
Alternating
Red/Green
Reduce input signal power; reduce
system gain.
Signal compression.