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 Designing a Unison Solution
- SECTION 7 Installing Unison
- 7.1 Installation Requirements
- 7.2 Safety Precautions
- 7.3 Preparing for System Installation
- 7.4 Unison Component Installation Procedures
- 7.5 Splicing Fiber Optic Cable
- 7.6 Interfacing a Main Hub to a Base Station or a Roof-top Antenna
- 7.7 Connecting Contact Alarms to a Unison System
- 7.8 Alarm Monitoring Connectivity Options
- SECTION 8 Replacing Unison Components
- SECTION 9 Maintenance, Troubleshooting, and Technical Assistance
- APPENDIX A Cables and Connectors
- APPENDIX B Compliance
- APPENDIX C Changes and New Capabilities
- APPENDIX D Glossary
Troubleshooting
9-30 InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL D-620003-0-20 Rev K
NOTE: When you power cycle the Expansion Hub the UL STATUS LED should be
green for approximately 90 seconds before it turns red. If it isn’t, replace the Expan-
sion Hub.
Table 9-13 Troubleshooting Expansion Hub Status LEDs During Normal
Operation
During
Normal
Operation
Expansion
Hub
Status
LEDs State Action Impact
At Any Time
UL STATUS
Red Check uplink fiber for optical loss.
Power cycle Expansion Hub one
time to check uplink laser.
No communications between the Main
Hub and the Expansion Hub.
Uplink laser failure.
DL STATUS
Red Check the downlink fiber for opti-
cal loss
No communications with the Main Hub.
E-HUB
STATUS
Red If either the UL STATUS or the DL
STATUS
are also red, see above.
Cycle power on the Expansion
Hub. If fault remains, replace the
Expansion Hub.
Internal Expansion Hub fault (including
either of the above
UL STATUS or DL
STATUS
states).