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
PN 8700-10 Help Hot Line (U.S. only): 1-800-530-9960 4-5
620003-0
PRELIMINARY LED Indicators
4.1.3 LED Indicators
The unit’s front panel LEDs indicate fault conditions and commanded or fault lockouts.
The LEDs do not indicate warnings or if the system test has not been performed. Use
the LEDs as a go/no go test or as a backup when you are not using AdminManager.
Upon power up, the Expansion Hub goes through a five-second test to check the LED
lamps. During this time, the LEDs blink through the states shown in Table 4-2, letting
you visually verify that the LED lamps and the firmware are functioning properly.
NOTE: Refer to Section 10 for troubleshooting using the LEDs.
Unit Status and DL/UL Status LEDs
The Expansion Hub unit status and DL/UL status LEDs can be in one of five states,
as shown in the following table. These LEDs can be:
steady green
steady red
There is no off state when the unit’s power is on.
Table 4-1 Expansion Hub Unit Status and DL/UL Status LED States
LED State Indicates
Green / Green
Green / Green
• Expansion Hub is connected to power
• Expansion Hub is not reporting a fault or lockout; but the system
test may need to be performed or a warning condition could exist
• Optical power in is above minimum (Main Hub is connected)
although the cable length may be longer than recommended
maximum
• Optical power out (uplink laser) is normal
Green / Green
Red / Green
• Expansion Hub is reporting a fault or commanded lockout, but
optical power in and out are normal
Green / Red
Red / Green
• Fault condition detected, optical power in is below minimum.
(Main Hub is not connected, is not powered, or Main Hub’s DL
laser has failed.)
Green / Green
Red / Red
• Expansion Hub is reporting a fault condition
• Optical power in is normal, optical power out is below minimum
(Expansion Hub uplink laser has failed; unable to communicate
with Main Hub)
Green / Red
Red / Red
• No downlink or uplink: replace Expansion Hub
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS
POWER
E-HUB STATUS
DL STATUS
UL STATUS