User's Manual
Table Of Contents
- SECTION 1 General Information
- SECTION 2 InterReach Fusion System Description
- SECTION 3 Fusion Main Hub
- SECTION 4 Fusion Expansion Hub
- SECTION 5 Remote Access Unit
- SECTION 6 Designing a Fusion Solution
- 6.1 Overview
- 6.2 Downlink RSSI Design Goal
- 6.3 Maximum Output Power per Carrier
- 6.3.2 700 MHz (Upper C)
- 6.4 System Gain
- 6.5 Estimating RF Coverage
- 6.6 Link Budget Analysis
- 6.6.1 Elements of a Link Budget for Narrowband Standards
- 6.7 Optical Power Budget
- 6.8 Connecting a Main Hub to a Base Station
- 6.8.1 Uplink Attenuation
- 6.8.2 RAU Attenuation and ALC
- SECTION 7 Installing Fusion
- 7.1 Installation Requirements
- 7.1.2 Cable and Connector Requirements
- 7.1.3 Distance Requirements
- 7.2 Safety Precautions
- 7.2.1 Installation Guidelines
- 7.2.2 General Safety Precautions
- 7.2.3 Fiber Port Safety Precautions
- 7.3 Preparing for System Installation
- 7.3.1 Pre-Installation Inspection
- 7.3.2 Installation Checklist
- 7.3.3 Tools and Materials Required
- 7.3.4 Optional Accessories
- 7.4 Fusion Installation Procedures
- 7.4.1 Installing a Fusion Main Hub
- 7.4.3 Installing RAUs
- 7.4.4 Configuring the System
- 7.5 Splicing Fiber Optic Cable
- 7.6 Interfacing the Fusion Main Hub to an RF Source
- 7.6.1 Connecting a Single Fusion Main Hub to an RF Source
- 7.7 Connecting Contact Alarms to a Fusion System
- 7.8 Alarm Monitoring Connectivity Options
- 7.8.1 Direct Connection
- 7.8.5 Ethernet RF Modem
- SECTION 8 Replacing Fusion Components
- SECTION 9 Maintenance, Troubleshooting, and Technical Assistance
- APPENDIX A Cables and Connectors
- APPENDIX B Compliance
- APPENDIX C Faults, Warnings, Status Tables for Fusion, Fusion Wideband, Fusion SingleStar
Maximum Output Power per Carrier
6-4 InterReach Fusion Installation, Operation, and Reference Manual
CONFIDENTIAL D-620610-0-20 Rev F
6.3 Maximum Output Power per Carrier
The following tables show the recommended maximum power per carrier out of the
RAU 50 Ohm Type-N connector for different frequencies, protocols, and numbers of
carriers. These maximum levels are dictated by RF signal quality and regulatory
emissions issues. In general, as the number of RF carrier increases, the maximum
power per carrier decreases. If these levels are exceeded, signal quality will be
degraded and/or regulator requirements will be violated. The maximum input power
to the Hub is determined by subtracting the system gain from the maximum output
power of the RAU. System gain is software selectable from 0 dB to 15 dB in 1 dB
steps. Additionally, both the uplink and downlink gain of each RAU can be attenuated
0 or 10 dB.
When connecting a Hub to a base station or repeater, attenuation on the downlink is
typically required to avoid exceeding Fusion’s maximum output power recommenda-
tions.
WARNING: Exceeding the maximum input power may cause perma-
nent damage to the Hub. Do not exceed the maximum composite input
power of 1W (+30 dBm) to the Hub at any time.
NOTE: These specifications are for downlink power at the RAU output (excluding
antenna).