User's Manual
Table Of Contents
- SECTION 6 Installing Unison Accel
- 6.1 Installation Requirements
- 6.2 Safety Precautions
- 6.3 Preparing for System Installation
- 6.4 Unison Accel Installation Procedures
- 6.5 Interfacing an Accel Hub to a Base Station or a Roof-top Antenna
- 6.6 Connecting Contact Alarms to an Accel System
- 6.7 Alarm Monitoring Connectivity Options
- SECTION 7 Replacing Unison Accel Components in an Operational System
- SECTION 8 Maintenance, Troubleshooting, and Technical Assistance
- APPENDIX A Cables and Connectors
- APPENDIX B InterReach Unison Accel Property Sheet
- APPENDIX C Compliance
- APPENDIX D Release Notes
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620021-0 Rev. A
6.5.1 Connecting Multiple Accel Hubs
You can use power combiner/splitters as splitters to connect multiple Accel Hubs in
order to increase the total number of RAUs in a system. You can also use power com-
biner/splitters to combine base station channels in order to increase the number of RF
carriers the system transports.
Connecting Multiple Accel Hubs to a Simplex Repeater
or Base Station
Considerations:
• 2 hybrid power combiner/splitters; one for uplink and one for downlink (2x1 for
two Accel Hubs, 3x1 for three, 4x1 for four, etc.)
• 1 N-male to N-male coaxial jumper cable between each power combiner/splitter
and the base station
• 2 N-male to N-male coaxial jumper cables between each power combiner/splitter
and each Accel Hub
Procedure:
1. Connect the power combiner/splitters to the repeater or base station using N-male
to N-male coaxial jumper cables:
b. From the first power combiner/splitter to the repeater or base station
c. From the second power combiner/splitter to the repeater or base station
2. Connect the power combiner/splitters to the Hubs:
a. From the first Hub’s UPLINK port to the first power combiner/splitter
b. From the first Hub’s DOWNLINK port to the second power combiner/splitter
c. From the second Hub’s UPLINK port to the first power combiner/splitter
d. From the second Hub’s DOWNLINK port to the second power combiner/splitter
3. Check Hub LEDs.
After connecting and powering on the Hub, check all LEDs to ensure that the sys-
tem is operating properly.
NOTE: Use a 50 ohm terminator on any unused power combiner/splitter ports.
The following figure shows connecting two Hubs to a simplex repeater or base sta-
tion. Connecting two Hubs increases the total number of supportable RAUs from 8 to
16.