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Chapter 2 Modules and Interfaces
GT48 is designed based on modular architecture. Its modules and interfaces are followed:
2.1 Main Console Module
GT48 Main Console Module uses advanced framework and technology. Its main features include: high
performance processors for management and signaling processing and DSP sub module for voice processing.
The Main Console Module provides necessary interfaces to connect to peripheral devices and internal interface
modules. It can supports up to 48 analog line/trunk ports.
Figure 2-1 GT48 Main Console Module Physical View
①
Main Console Module Thumb Screw
②
FXO Port
③
Ethernet Port (0)
④
Ethernet Port(1)
⑤
Ethernet Port (2)
⑥
Console Port (CON)
⑦
Power LED
⑧
Status LED
⑨
Alarm LED
⑩
Main Console Module Thumb Screw
GT48 modules are hot swappable for easy service and maintenance. For example: users can pull the main
console module out for service by pulling the main console module thumb screw indicated by
①
and
⑩
.
Note
：
The main console module can be secured by turning the screw clockwise. Turn screws the other way to
pull the main console module out.
2.1.1 FXO
Port
There is on FXO port of RJ45 on the GT48 main console module.Table2-1 shows the wiring scheme for its
matting connectors.