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
Expansion Hub Rear Panel
4-6 InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL D-620003-0-20 Rev J
4.2 Expansion Hub Rear Panel
Figure 4-4 Expansion Hub Rear Panel
1. Power on/off switch
2. AC power cord connector
3. Three air exhaust vents
4. DB-9 connector (UNS-EH-2 specific)
Table 4-3 DB-9 Pin Connectors
This interface can both generate contact alarms and sense a single external alarm con-
tact.
Pin Connection Signal Name
1N/C N/A
2 +5V through a 10K Ohm resistor. Input to micro controller ALARM3
3 +5V through a 10K Ohm resistor. Input to micro controller ALARM1
4 GND N/A
5 +5V through a 10K Ohm resistor. Input to micro controller) ALARM2
6N/C N/A
7N/C N/A
8 GND N/A
9 GND N/A
1
2
3
4