The Newtec AZ860 Concentrator-Deconcentrator is the ideal
product to realize transparent and efficient transmissions
of several MPEG Transport Streams on a single transmission
channel, such as a satellite DVB-S or DVB-S2 carrier, or a terrestrial
leased line.
The concentrator is installed at the transmit side and is designed
to combine up to 8 input Transport Streams into one single
stream on an ASI interface. The deconcentrator is installed at
the receiving end and restores the original Transport Streams.
The concentration/deconcentration process is completely
transparent and the combined stream is fully compatible with
MPEG/DVB transmission equipment.
The AZ860 makes use of an innovative proprietary concentration
technology developed by Newtec. This technology combines
Transport Streams into a single MPEG stream without changing
anything in their content, their bit rate or their clock reference
information (PCR). This feature is essential in networks with strict
synchronisation requirements like SFN networks where adjacent
towers are transmitting on the same frequency.
The AZ860 is widely used in primary distiribution networks for
terrestrial and mobile TV.
The AZ860 Concentrator – Deconcentrator also contains
a proprietary scrambling feature to protect each stream
individually against piracy. The inputs of the concentrator and
the outputs of the deconcentrators are standard ASI interfaces.
The concentrator and the deconcentrator are part of the Azimuth
family and are available as stand alone units.
The deconcentrator functionality can also be integrated in a
demodulator allowing deconcentration of up to 4 ASI streams
(HZ930)
The AZ860 is easy to operate and monitor. All control and
monitoring parameters are available locally on the front panel
and remotely through a web interface. It is also possible to
control or monitor the AZ860 via RMCP or SNMP.
AZ860 Key Features
Concentrates and deconcentrates up to 8 DVB or ATSC
Transport Streams into a single Transport Stream
Fully transparent: no PID translation, no PCR restamping, no
rate adaptation and no modification of SI/PSI tables
Compliant to SFN requirements
Each transport stream can be scrambled and descrambled
Independently
Matrix routing capability between the multiple inputs of
the concentrator and the multiple outputs of the deconcentrator
Main Advantages
Reduced capital investment on hub and remote sites
Lower operational cost thanks to efficient use of
transmission bandwidth
Cost effective and easy-to implement technology
compared to traditional multiplexer solutions
Protection of the data content against unauthorized access
by other parties
Applications
Primary distribution for Digital Terrestrial TV
Primary distribution for Mobile TV
ASI networking and routing
Interfaces
ASI Electrical Inputs
Connector
BNC female / 75 Ohms
Sensitivity
200 mVpp
Max input
880 mVpp
Return loss
>17 dB (22-270 MHz)
ASI Electrical outputs
Connector
BNC female / 75 Ohms
Level
800 mVpp ± 10%
10 MHz reference input / output (optional)
Connector
BNC (F) – 50 Ohms
Input level
-3dBm up to 7dBm
Output level
+7dBm
Performance
ASI Baud rate IN
270 Mbaud ± 100 ppm
ASI Baud rate OUT
accuracy (internal ref.)
accuracy (external ref.)
270 Mbaud
± 20 ppm
same as external ref.
ASI Transport Rate OUT
range
resolution
accuracy (internal ref)
accuracy (external ref)
4-160 Mbps
1 bps
± 20 ppm
external ref. ±10-11
ASI Transport Rate IN
total transport rate
4 – 156 Mbit/s
Transport packet format
input (automatic)
output (selectable)
188, 204-RS, 204-noRS
188, 204-noRS
Transport packet timing (“Byte” timing corresponds to DVB “Burst” timing
and means bytes are spread)
input (automatic)
byte timing, packet timing
output (fixed)
byte timing
Overhead
TranspRate OUT / TranspRate IN < 1.03
Deconcentrator mode
ASI Baud rate IN
270 Mbaud ± 100 ppm
ASI Baud rate OUT
see Concentrator mode
ASI Transport Rate OUT
range
accuracy
0 - 156 Mbps
follows input
ASI Transport Rate IN
total transport rate
4 - 160 Mbit/s
Transport packet format
input (automatic)
output (selectable)
188, 204-RS, 204-noRS
188, 204-noRS
Transport packet timing ("Byte" timing corresponds to DVB "Burst" timing
and means bytes are spread)
