Codan Radio P25 Training Guide - Manual (Page 76)

TRAINING GUIDE | P25 RADIO SYSTEMS
Chapter 5: Conventional Fixed Station Interface Page 68
DIGITAL FIXED STATION INTERFACE
The digital fi xed station interface uses Internet protocols to connect between a fi xed station and a host.
The DFSI has a Control Service and a Voice Conveyance Service. The Control Service is a point-to-
point connection between the host and a fi xed station. The Voice Conveyance service can be a point
to multi-point connection (host to fi xed stations).
Figure 5-4 shows the conventional Digital Fixed Station Interface (DFSI).
Figure 5-4: Digital Fixed Station Interface
Console
Subscriber Analog, Digital or
Mixed Mode
Fixed Station
Control Service
Host Repeats
(Full Duplex interface only)
Fixed Station
Repeats
Voice Conveyance Service