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
PN 9000-10 Help Hot Line (U.S. only): 1-800-530-9960 6-39
620021-0 Rev. A
6.7.4 POTS Line Sharing Switch Connection
Using a line sharing switch you can connect up to four modems to a single telephone
line. Testing was performed with a Teltone Line Sharing Switch, model number
M-394-B-01.
Figure 6-16 OA&M Connection using a POTS Line Sharing Switch
Up to 16 modems can be monitored using a single telephone line by cascading line
sharing switches, as shown in Figure 6-17.
Figure 6-17 Cascading Line Sharing Switches
LINK
RAU
PORT 1
LINK
RAU
PORT 2
LINK
RAU
PORT 3
LINK
RAU
PORT 4
LINK
RAU
PORT 5
LINK
RAU
PORT 6
LINK
RAU
PORT 7
LINK
RAU
PORT 8
POWER
STATUS
InterReach
Unison
Accel
Modem
PSTN
Line Sharing Switch
Up to 4 modems
per Switch
Modem
Modem
Straight-through
modem cable
Straight-through
modem cable
PC running
Software
AdminManager
Modem
PSTN
Line Sharing Switch
Line Sharing Switch Line Sharing Switch Line Sharing Switch Line Sharing Switch
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Straight-through
modem cable
Straight-
through
modem
cables
PC running
Software
AdminManager