powersoft Duecanali 3904 User Manual

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31
Duecanali User Guide
Ethernet networkAES3 source
Port 1
Port 2
Device mode: forward to AES3-A
Port 1 Port 2
Device mode: repeat
Port 1 Port 2
Device mode: repeat
Port 1 Port 2
Device mode: repeat
AES3-A
Ethernet
FIGURE 48: Daisy chain connection of four ampliers
The rst amplier in the chain receives the AES3 input from the
rear panel Phoenix connector and then forwards it to the AES3-A
(or, alternatively, the AES3-B) stream. In order to do so, the rst
amplier mode is set to “forward to AES3-A stream”. Instructions
on how to set the amplier mode can be found in section “10.1
Device Mode” on page 33. The second amplier in the chain
receives the AES3-A stream from the master port number 1. Set
in repeater mode, this amplier relays the AES3-A signal to the
third amplier in the chain via the RJ45 port number 2. This setup
is repeated until the nal amplier in the chain receives its AES3-A
signal. The rst connection to the Ethernet network is done via
a CAT-5 cable inserted in any free RJ45 port. The control data
stream, travelling using the Ethernet standard, travels within the
chain alongside the AES3-A stream in a bidirectional manner.
The daisy chain topology is not robust. If any single AES3 or
Ethernet cable connection is interrupted, the whole system fails.
In the diagram below, if the crossed out connection should fail,
both ampliers number 3 as well as 4 would not be able to receive
any audio signal to play. Their connection to the Ethernet network
would fail as well.
Ethernet networkAES3 source
Port 1
Port 2
Device mode: forward to AES3-A
Port 1 Port 2
Device mode: repeat
Port 1 Port 2
Device mode: repeat
Port 1 Port 2
Device mode: repeat
AES3-A
Ethernet
#1
#2
#3
#4
FIGURE 49: Daisy chain connection of four ampliers: case of internal
connection failure between amps number 2 and 3
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Intermediate audio robust chain
A slightly more robust network with respect to the audio system
is the one illustrated in the following diagram. In this connection,
two ampliers, the rst and the last one in the network, are set to
work in forward mode. The remaining “central ampliers” are set
to work in repeater mode.
Ethernet network
AES3 source
Port 1
Port 2
Device mode: forward to AES3-A
Port 1 Port 2
Device mode: repeat
Port 1 Port 2
Device mode: repeat
Port 1 Port 2
Device mode: forward to AES3-A
AES3-A
Ethernet
FIGURE 50: Intermediate connection, internally robust with respect to
the AES3 stream.
The fourth amplier’s audio input is the AES3 stream coming
from the Phoenix connector because it is in forward mode; the
AES3-A stream coming from amplier number 3 via port 1 is
redundant, meaning it is not necessary for the fourth amplier to

powersoft Duecanali 3904 Specifications

General

Brand	powersoft
Model	Duecanali 3904
Category	Amplifier
Language	English