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 6-7
620003-0
PRELIMINARY Installation Checklist
Power combiner/splitter N-male to N-male coaxial cables; power combiner/splitter to Main Hub and
base station or repeater
Attenuator Attenuation may be required to achieve the desired RF output at the RAU and
the desired uplink noise floor level
Circulator When using a duplex BTS: Installed between the repeater the Main Hub uplink
and downlink ports. Not used with a simplex BTS
Cabling
Coaxial: repeater or base station to
Main Hub
Coax approved; N-type male connectors
Coaxial: RAU to passive antennas Use low-loss cable; SMA male connector; typical 1 m (3.3 ft) using RG142
coaxial cable
Fiber: Main Hub to Expansion Hubs SC/APC (angle-polished) male connectors;
MMF: limited by optical loss of 3 dB, up to 1.5 km (4,921 ft);
SMF: limited by optical loss of 3 dB, up to 6 km (19,685 ft)
Cat-5/6 ScTP: Expansion Hub to
RAUs
TIA/EIA 568-A approved; shielded RJ-45 male connectors
• Absolute Minimum: 10 meters (33 ft)
• Recommended Minimum: 25 meters (82 ft)
• Recommended Maximum: 100 meters (328 ft)
• Absolute Maximum: 150 meters (492 ft)
Tie-off cables to avoid damaging the connectors because of cable strain
Daisy-chain cable For contact alarm monitoring: connecting up to 5 LGCell systems to Unison,
connecting up to 5 Unison systems to MetroReach Focus, or connecting up to 5
Unison systems to a base station
Null modem cable Female connectors; Main Hub to a laptop that is running the AdminManager
software; local connection
Straight-through cable Female/male connectors; Main Hub to a modem; remote connection
Configuring System
Laptop running AdminManager
software
Refer to requirements in Section 7.1.1, “PC/Laptop Requirements,” on page 7-2
Distances
Main Hub is within 3–6m (10–20 ft)
of connecting repeater
If longer distance, determine the loss of the cable used for this connection and
adjust the RF signal into the Main Hub accordingly. This can be done by read-
justing the power from the base station, or by changing the attenuation value
between the base station/repeater and the Main Hub
Main Hub is within 3–6m (10–20 ft)
of connecting base station
Main Hub is within correct distance of Expansion Hub(s);
SMF and MMF optical link budget: 3 dB
Table 6-2 Installation Checklist (continued)
Installation Requirement Consideration