Using a Model 26 Fire Station Dispatcher for System Backup
128
If the Serial CAD interface was being used to allow CAD control of the FSA Server, that
CAD interface may also be switched to the Model 26. This will allow CAD control of the
system to continue with minimal interruption.
One of the significant attributes of this configuration is that the radio is
not
sharing the
receive and transmit audio connections on the Model 6203 with the IP interface. The
audio, whether voice or FFSK packets, is always passing just through the radio. This
should simplify the setting of audio levels.
Voice over VoIP
In a system of this type, the individual FSA console positions communicate control and
status request messages with the FSA Server (over the IP network) and then the server
communicates with the individual station units (again over the IP network). The reverse is
true when the station units communicate status information back to the consoles. In
addition, any voice audio transmitted between the console positions and the station
alerting units travels over the IP network.
In the event of a problem occurring with the FSA Server, the server can be shut down and/
or disconnected from the IP network. A properly programmed Model 26 is connected to a
suitable radio on a channel that is dedicated to providing backup communications for the
this system. At each of the stations, a matching radio transceiver is installed and interfaced
to the Model 6203. When the Model 26 is turned on it will interrogate the station units and
take control of the system using FFSK commands over the radio channel.
Figure 46: IP-FSA System with VoIP for Voice Audio (FFSK & Voice over Radio for Backup)
FSA Client
Console
Audio Interface
VoIP Gateway
Serial CAD
Interface
Model-26
"ColdStart" Radio
Backup
Private IP
Network
Radio Console
4-Wire
Audio
Radio Voice
With FFSK Radio
Backup
A
B
M26 Bakup
FFSK / Voice
Radio
Channel A
IP FSA
Primary Server
Serial CAD
Translator
4-Wire
Audio
Radio
Channel A
M6203
IP / VoIP
With FFSK
Backup
IP
Station
Control
&
VoIP
Audio
Summary of Contents for 025-9581M
Page 1: ...Fire Station Alerting System Installation and Maintenance 025 9581M ...
Page 6: ...6 025 9581M ...
Page 40: ...Creating Console Positions 40 025 9581M ...
Page 45: ...45 Installing the VoIP Gateway Server ...
Page 78: ...Configuring Station Transponder Units 78 025 9581M ...
Page 124: ...Installing the Station Transponder Units on Site 124 025 9581M ...
Page 146: ...Using a Model 26 Fire Station Dispatcher for System Backup 146 025 9581M ...
Page 188: ...Appendix C Using a Model 620x in a Model 26 based System 188 025 9581M ...
Page 196: ...Fire Station Alerting System Installation and Maintenance 196 025 9581M ...