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6.6
Connection of the ETI Decoder in the DAB network
Before the system is put into operation please define its location. The Ensem-
ble Multiplexer DM-001 from Rohde&Schwarz provides two ETI outputs (see
FIG. 9). One can be used for the transmission of the ETI signal to DAB trans-
mitters, the other one for the connection of the ETI Audio Decoder. If the sys-
tem is to be used at the transmitter location the ETI Audio Decoder has to be
connected into the ETI signal transmission path. The system loops the incom-
ing and regenerated 2-Mbit signal to the 2-Mbit output (see FIG. 10).
Remark
If you use the looped 2-Mbit output a break in the ETI Audio Decoder will re-
sult in an interruption in the ETI transmission path.
i
The loop in the ETI Audio Decoder will be implemented in the last component
of the 2-Mbit interface. Only a defect of this component and a defect of the
power supply will cause an interruption in the ETI signal path.
In the following application the ETI Audio Decoder is connected to the Ensem-
ble Multiplexer DM-001 from Rohde&Schwarz.
FIG. 9
2-Mbit/s (STI-D/C)
2-Mbit/s (STI-C)
2-Mbit/s
network
Possible Channel Configuration:
TS 1
TS 0
G.704
ETI-Frame with Audio and Data streams
P u t t i n g
APPLICATION WITH THE ETI AUDIO DECODER
DAB Ensemble Multiplexer
(e.g. DM-001)
2-Mbit/s
(STI-D/C)
2-Mbit/s (STI-C)
MAGIC STI DECODER
CALL
#1
#2
MOD
POWER
SYNC
CONNECT
ALARM
LEFT RIGHT
DISC
STI Audio Decoder
TS 2
TS 3
....
i n t o
o p e r a t i o n
ETI
ETI Audio Decoder
ETI
MAGIC ETI DECODER
CALL
#1
#2
#3
MOD
POWER
SYNC
CONNECT
ALARM
LEFT RIGHT
DISC
DAB Source Encoder MAGIC-B
2-Mbit/s
#3
(STI-D/C)
DAB Source Encoder MAGIC-E
DAB Source Encoder MAGIC-E
MAGIC DAB Source Enc
TS16
.....
TS 30
ETI-Frame with Audio and Data streams
PA G E 2 5
TS 31
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