powersoft Duecanali Serie Mode D'emploi page 7

Digital Audio Input connection
Dante /AES67 enabled models accepts two input streams from the
TM
dedicated audio over IP port. Cabling must comply to TIA/EIA-568-B
and adopt the T568B scheme pinout.
In order to implement a Dante
Dante Controller have to be used. Dante
TM
application that manages devices on the network. Duecanali/
Quattrocanali DSP+D amplifiers are automatically discovered and
displayed in Dante Controller with the default identifier:
TM
MODELNAME-SERIAL (e.g. Duecanali1604-71520).
Ethernet connection
The port labelled Ethernet is designed to remotely control the
amplifier via an Ethernet connection through a personal computer
and Powersoft ArmoníaPlus software.
Powersoft recommend the use of Ethernet Cat5 straight through –
patch – cables with pin/pair assignments TIA/EIA-568-B, i.e. T568B.
Output connections
Output connections are made via the Phoenix PC 5/4-STF1-7,62
177859 port.
Any mixed configuration of low and high impedance output loads
can be made: in order to set the load configuration, each channel is
provided with four DIP switches.
Hi-Z 70V/100V operations
Any channel of can drive 70V/100V (Hi-Z) distributed line
loudspeakers. In order to connect any channel's output to a
70V/100V line, the rear panel DIP switch corresponding to the
channel must be set.
Powersoft recommends to use the built-in HPF (High Pass Filter)
when the amplifier is set to drive a distributed line to prevent
loudspeaker transformer saturation, which can considerably
degrade sound performance. The HPF can be activated by means of
the DIP switch corresponding to the channel, two cutting frequency
are available 35 Hz and 70 Hz.
Lo-Z 2Ω load operation
Duecanali/Quattrocanali Series amplifiers are optimized for working
with 4Ω output loads but a special configuration allows to connect
low loads down to 2Ω.
The 2Ω switch allows to activate on all output channels set to match
low impedance (i.e. in Lo-Z configuration) an operating condition
that optimizes the performance with very low loads, by limiting the
maximum output voltage to 85 V
For optimal 2Ω performance, it is recommended to select LowZ
mode for all the amplifier's channels.
Note that 2Ω capabilities are not supported by 4804 models, the
dip switch is therefore marked "USR C", and its function is reserved.
Diagnostics - GPO - Alarms
Duecanali/Quattrocanali Series provides a pair of paralleled general
purpose output connections per channel: one Normally Open
and one Normally Closed
The connections are available on the back panel via the 6-pin
Phoenix MC 1.5/6-ST-3.81 5447900 connector.
When the amplifier is in normal operating condition the NO contacts
are closed, whilst the NC contacts are open, and vice-versa.
These contacts are used to report potentially dangerous faults or
generally unsafe operation conditions by toggling alarm switches
relative to the following events, and any fault preventing the normal
operation of an output channel:
No AC mains (i.e. system shutdown);
Thermal stress: the system temperature is too high and the thermal
protection is engaged;
Short circuit in output wiring: either the loudspeaker or the line is
in short;
Amplifier is in Standby
DSP+D versions feature further monitoring on pilot tone and output
load trough ArmoníaPlus.
network, a computer running
TM
Controller is a software
TM
per channel.
peak
NC.
Self Check
The self check procedure tests the amplifier status and reports the
user in case of failures.
After few minutes, at the end of the self check procedure, a
combination of lit LED in the LED panel provides information about
the amplifier status.
In order to exit the self check test and resume normal operations,
press once the self check push button
If self check cannot be started because of a fault, the check
LED will blink fast, whilst a reassuring slow blink is an
indication of a completed self check procedure.
Pilot Tone monitoring
The detection of a mismatch in the input pilot tone parameters
(frequency and voltage level) can be used to trigger the backup policy
and activate an alert through the general purpose output switch.
The output pilot tone detection relies on an external signal passing
through the amplifier or the internal post DSP pilot tone generator;
in both cases any mismatch between the detected signal and the set
thresholds triggers the general purpose output switches.
Networking
Duecanali/Quattrocanali amplifiers support star network topology
via the Ethernet port and Dante
IP Addressing
Factory default network settings are DHCP/AutoIP.
In order for the amplifier to self-configure when connected to an
existing LAN or PC. Fixed IP policy can also be adopted and configured
through ArmoníaPlus.
If a DHCP server is not active within the network, the amplifier platform
initiates a stateless address auto-configuration (i.e. Zero-configuration
networking methodology – Zeroconf): it self assigns a local numeric
network address (of the type 169.254.x.y – 172.31.*.* for the secondary
network if present – with a subnet mask 255.255.0.0) and automatically
distributes and resolves the host names of the networking devices.
Both Armonia and the Duecanali/Quattrocanali must belong to
the same subnet. If a DHCP server is present on the network and a
Duecanali/Quattrocanali amplifier is in AUTO IP, networking may
become unstable.
As a rule of thumb, turn the DHCP
server on before connecting the amplifiers.
IP addressing of a Duecanali/Quattrocanali amplifier is established
during the bootstrap: when the amplifier discovers a DHCP server
on the network during the startup, it negotiates the networking
parameters. If the Duecanali/Quattrocanali does not reveal a DHCP
server on the network during the startup, it set itself in AUTO IP mode.
ArmoníaPlus
ArmoníaPlus is the default configuring interface that allows system setting
and customization of the Duecanali/Quattrocanali DSP+D amplifiers.
Armonía can be installed on a PC running Windows (XP SP3 and higher).
Download ArmoníaPlus for free from the dedicated website:
NO
https://www.powersoft.com/en/software/armoniaplus/
Input selection and Backup Policy
In Duecanali/Quattrocanali DSP+D and amplifiers it is possible to select
among two input signal sources per channel: analog and Dante
AES67 streams. ArmoníaPlus software provides an interface to select
the input source.
Furthermore Duecanali/Quattrocanali DSP, DSP+D, and DSP+ amplifiers
implement a backup policy aimed to improve reliability against signal
fault. By assigning a bus priority to the two different input sources per
channel, the system is able to automatically switch to a reliable input
connection in case of signal drop or pilot tone mismatch.
Output Load monitoring
Through the ArmoníaPlus software it is possible to set the thresholds
on the load impedance, at given frequency, that trigger the general
purpose output of any channel in Duecanali/Quattrocanali DSP,
DSP+D, and DSP+ amplifiers.
.
6
/AES67 dedicated AoIP port.
TM
Duecanali - Quattrocanali | 7
EN
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TM