Instruction Manual

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Table Of Contents

SECTION 1 General Information
- 1.1 Firmware Release
- 1.2 Purpose and Scope
- 1.3 Conventions in this Manual
- 1.4 Standards Conformance
- 1.5 Related Publications
SECTION 2 InterReach Fusion System Description
- 2.1 System Overview
- 2.2 System Hardware Description
- 2.3 System OA&M Capabilities Overview
  - 2.3.1 System Monitoring and Reporting
  - 2.3.2 Using Alarm Contacts
- 2.4 System Connectivity
- 2.5 System Operation
- 2.6 System Specifications
  - 2.6.1 RF End-to-End Performance
SECTION 3 Fusion Main Hub
- 3.1 Fusion Main Hub Front Panel
- 3.2 Fusion Main Hub Rear Panel
  - 3.2.1 Fusion Main Hub Rear Panel Connectors
    - 3.2.1.1 9-pin D-sub Connector
    - 3.2.1.2 N-type Female Connectors
- 3.3 Main Hub Specifications
- 3.4 Faults, Warnings, and Status Messages
  - 3.4.1 Description
  - 3.4.2 View Preference
SECTION 4 Fusion Expansion Hub
- 4.1 Expansion Hub Overview
- 4.2 Expansion Hub Front Panel
- 4.3 Expansion Hub Rear Panel
- 4.4 Faults, Warnings, and Status Messages
- 4.5 Expansion Hub Specifications
SECTION 5 Remote Access Unit
- 5.1 RAU Overview
- 5.2 Remote Access Unit Connectors
  - 5.2.1 50 Ohm Type-N Connector
  - 5.2.2 75 Ohm Type-F Connector
- 5.3 RAU LED Indicators
- 5.4 Faults and Warnings
- 5.5 Remote Access Unit Specifications
SECTION 6 Designing a Fusion Solution
- 6.1 Overview
- 6.2 Downlink RSSI Design Goal
- 6.3 Maximum Output Power per Carrier
- 6.4 System Gain
  - 6.4.1 System Gain (Loss) Relative to CATV Cable Type Length
- 6.5 Estimating RF Coverage
- 6.6 Link Budget Analysis
- 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
    - 6.8.2.1 Using the RAU 10 dB Attenuation Setting
    - 6.8.2.2 Using the Uplink ALC Setting
SECTION 7 Installing Fusion
- 7.1 Installation Requirements
- 7.2 Safety Precautions
- 7.3 Preparing for System Installation
- 7.4 Fusion Installation Procedures
- 7.5 Splicing Fiber Optic Cable
  - 7.5.1 Fusion Splices
- 7.6 Interfacing the Fusion Main Hub to an RF Source
  - 7.6.1 Connecting a Single Fusion Main Hub to an RF Source
  - 7.6.2 Connecting Multiple Fusion Main Hubs to an RF Source
- 7.7 Connecting Contact Alarms to a Fusion System
- 7.8 Alarm Monitoring Connectivity Options
SECTION 8 Replacing Fusion Components
- 8.1 Replacing an RAU
- 8.2 Replacing a Fusion Expansion Hub
- 8.3 Replacing a Fusion Main Hub
SECTION 9 Maintenance, Troubleshooting, and Technical Assistance
- 9.1 Service
- 9.2 Maintenance
- 9.3 Troubleshooting
- 9.4 Troubleshooting CATV
- 9.5 Technical Assistance
APPENDIX A Cables and Connectors
A.1 75 Ohm CATV Cable
A.2 Fiber Optical Cables
A.3 Coaxial Cable
A.4 Standard Modem Cable
A.5 TCP/IP Cross-over Cable
A.6 DB-25 to DB-9 Null Modem Cable
APPENDIX B Compliance
B.1 Fusion System Approval Status
B.2 Human Exposure to RF
APPENDIX C Faults, Warnings, Status Tables
C.1 Fault Messages Reported by Hubs
C.2 Faults Reported for System CPU
C.3 Faults for RAUs
C.4 Warning/Status Messages for Hubs
C.5 Warning/Status Messages for System CPUs
C.6 Warning /Status Messages for RAUs

Interfacing the Fusion Main Hub to an RF Source

7-38 InterReach Fusion Installation, Operation, and Reference Manual

CONFIDENTIAL D-620TBD-0-20 Rev A

3. Connect an N-male to N-male coaxial cable to the receive simplex connector on

the base station.

4. Connect the other end of the N-male to N-male coaxial cable to the UPLINK con-

nector on the Hub for either Band 1, Band 2, and Band 3.

Figure 7-12 Simplex Base Station to a Fusion Main Hub

Connecting a Duplex Base Station to a Fusion Main Hub:

When connecting to a duplex base station, use a circulator or duplexer between it and

the Fusion Main Hub.

You can insert attenuators between the circulator or duplexer and Hub as needed.

1. Connect an N-male to N-male coaxial cable to the duplex connector on the base

station.

2. Connect the other N-male connector or duplexer to a circulator.

3. Connect an N-male to N-male coaxial cable to the DOWNLINK connector on the

Hub for either Band 1, Band 2, and Band 3.

4. Connect the other end of the N-male coaxial cable to the transmit connector on the

circulator.

5. Connect an N-male to N-male coaxial cable to the UPLINK connector on the Hub

for either Band 1, Band 2, and Band 3.

6. Connect the other end of the N-male coaxial cable to the receive connector on the

circulator.

N-male to N-male

Coaxial Cable

Base Station

Simplex

T1/E1 to

Mobile

Switching

Center

Insert attenuator, if needed

Note: This applies to either Band 1, Band 2, and Band 3.