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
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D-620003-0-20 Rev J CONFIDENTIAL
Alarm Monitoring Connectivity Options
7.8.3 RS-232 Port Expander Connection
In this configuration a port expander is used to allow the connection of multiple
devices to a single PC serial port. Testing was performed with an Equinox SST-16P
Multiport Board. A DB-25 male to DB-9 female modem cable must be made to con-
nect the connector panel to the Main Hub (refer to Appendix A.6 on page A-5). Or,
you can use a DB-25 male/DB-9 male adapter with a DB-9 female to DB-9 female
null modem cable.
Figure 7-21 OA&M Connection using an RS-232 Port Expander
NOTE: Refer to Appendix A.6 on page A-5 for the modem cable wiring informa-
tion.
RS-232 Port Expander
Host Cable
Serial Expansion Card to Connector Panel
Connector Panel
DB-25 male to DB-9 female
Modem Cable
PC running
or OpsConsole
Software
AdminManager