Architecture
Analog Telephony Laboratory System Architecture
Architecture
This section presents the technical and educational architecture of the Analog Telephony Laboratory.
The diagrams illustrate how the laboratory PBX generates analog telephone service, how that service is routed through a simulated outside-plant environment, and how students build and test the customer-premises infrastructure.
End-to-End Service Path
The service path represents:
PBX Service Source → Simulated Outside Plant → Student Installation → Functional Verification
The laboratory PBX generates the analog service through FXS interfaces. That service is distributed through the laboratory infrastructure and routed through components representing the outside plant before reaching the student-installed customer-premises infrastructure.
PBX Architecture
The PBX architecture integrates the Linux server, Asterisk/FreePBX, analog telephony interface, FXS modules, and 25-pair distribution infrastructure.
This configuration provides multiple analog extensions without requiring connection to the public switched telephone network.
Mobile Training Platform
The mobile training platform integrates the telecommunications server, analog interface, Ethernet/PoE network, wireless connectivity, telephone distribution, and functional endpoints into a transportable instructional system.