Specifications

15
Overall System Operation
Figure 2: Basic IP FSA System Using VoIP Gateway
Using a radio channel cuts down on network traffic and network bandwidth requirements.
It also opens up the possibility of using a Model 26 as a backup dispatch system. Figure 3
provides an example of the basic system when a radio channel is used to distribute voice
audio.
FSA alerting and
status traffic
Dispatch Channel Card Rack
with Audio Channel Cards
Voice audio for station
alerts and talkback
FSA Server
and VoIP Server
IP Network
DISPATCH CENTER
BACK ROOM EQUIPMENT
Audio & Digital
Input Interface
950-0690
BACK ROOM EQUIPMENT
OUTSIDE NETWORK CONNECTING STATIONS
FSA alerting and
status traffic
Voice audio for station
alerts and talkback
Voice Audio
and PTT
Indication
IP Station
Unit #1
Model 6203,
Model 6204,
or
Upgraded Model 6
FSA Console
running on a
Dispatch position