User's Guide
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
- SECTION 7 Installing Fusion
- SECTION 8 Replacing Fusion Components
- SECTION 9 Maintenance, Troubleshooting, and 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 Faults Reported by Fusion Main/SingleStar Hubs
- C.2 Faults Reported for System CPU
- C.3 Faults for Fusion Expansion Hubs
- C.4 Faults for RAUs
- C.5 Warning/Status Messages for Fusion Main/SingleStar Hubs
- C.6 Warning/Status Messages for System CPUs
- C.7 Warning/Status Messages for Fusion Expansion Hubs
- C.8 Warning /Status Messages for RAUs
RAU Overview
5-2 InterReach Fusion Installation, Operation, and Reference Manual
CONFIDENTIAL D-620610-0-20 Rev B
Figure 5-1 Remote Access Unit in a Fusion System
Figure 5-2 Remote Access Unit Block Diagram (Multiband)
Fusion Expansion Hub
RAU
Downlink Path: The RAU receives downlink IF signals from a Fusion Hub using 75 Ohm CATV cable. It converts the sig-
nals to RF and sends them to a passive RF antenna using 50 Ohm coaxial cable. Also, the RAU receives configuration
information from the Fusion Hub using the 75 Ohm CATV cable.
Uplink Path: The RAU receives uplink RF signals from a passive RF antenna using 50 Ohm coaxial cable. It converts the
signals to IF and sends them to a Fusion Hub using 75 Ohm CATV cable. Also, the RAU sends its status information to the
Fusion Hub using CATV cable.
The RAU receives 54VDC power from the Fusion Hub port through the 75 Ohm CATV cable center pin.
Downlink to RAU
Uplink from RAU
Fusion Main Hub
Downlink to antenna
Uplink from antenna
,3*
* for FSN-809019-1 RAU when Band 3 is active.