AEQ
PHOENIX STRATOS
8
1.4. Block diagram.
The internal design of the unit is organized in various functional modules that work together to
make the Phoenix STRATOS audiocodec a complete communications platform. The block
diagram below gives a simplified view of the distribution of these modules on the mainboard of
the equipment, as well as a brief description of the associated functions.
Phoenix STRATOS internal distribution detail
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The audio board contains all the audio input and output electronics, both analog and
digital, as well as the V.35/X21, IP & ISDN communication interfaces. It also includes a
serial port for high level debugging applications and for connecting other equipment for
carrying auxiliary data.
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The power supply module is responsible for converting the AC input into the various DC
voltages needed inside the device.
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The board containing the FPGA electronics also provides the interface toward the
microprocessor modules (CPU) and DSP, all of which form the processing and real
control core of the unit.
-
The front panel consists of an OLED display showing the control and configuration
menu as well as the set of buttons and indicators for operating the equipment, including
the alphanumeric keypad and the VU meters.
CONNECTORS & REAR PANNEL
RDSI/ISDN
INTERFACE
IP
INTERFACE
ANALOG & DIGITAL
AUDIO
POWER
DISPLAY & FRONT PANEL
MICRO
(CPU)
DSP
RS232
INTERFACE
V35/X21
INTERFACE
