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2
S Y S T E M D E S C R I P T I O N
The functional elements of the system are pictured in Fig. 2.
FIG. 2
2.1
Functionality
The MAGIC AE1 DAB System incorporates a X.21 interface
tion to the e.g. DM-001 Ensemble Multiplexer from Rohde & Schwarz. The X.21
clock is derived from the Ensemble Multiplexer clock.
The complete signal processing is taken over by two digital signal processors. In
this way the following functions are realised:
DSP1:
– ISO/MPEG2 Layer II Decoder
– digital audio router
– Signalling management
– Control of the complete system (Keypad, display, relays, TTL, RS232)
– PAD multiplexer
1
The LAN interface for control & management will be supported in a later release.
FUNCTIONAL ELEMENTS OF MAGIC AE1 DAB DAB AUDIO ENCODER
S y s t e m
D e s c r i p t i o n
1
for a direct connec-
PAG E 17
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