EGi Millennium, Техническое руководство

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T L 9 90 8 7 6 5
2
4
1
PIN1
PIN2
PIN3
0
• The order of priority of the amplifier inputs is the following (from higher to lower):
1) Audio signals arriving at the " 1 " terminal block –if the digital information at wires " 9 and 90 " confirms that there is a general call or a private message to this zone-.
2) Audio signals arriving to the PIN inputs (see below for connection of non- MILLENNIUM devices).
3) Audio signals from the general line channels arriving through the inputs " 5 , 6 , 7 and 8 ".
Whenever an audio signal reaches one of these inputs, all the inputs that have a lower priority level fade down and remain silent as long as the new signal is present.
• There are three PIN inputs in the amplifier. The gain of two of them is constant, while the gain of the third one is adjustable. These inputs are added (mixed) internally giving as a result an input signal to the multiplexer.
• If the audio signal reaching a PIN input of this amplifier comes from a MILLENNIUM device, its origin can be a OUT output (such as those present in auxiliary input modules or in volume regulators for microphone
bases) or the " + " terminal of a control unit. In these cases, the micro-controller of the amplifier detects a direct voltage component (7 V ) that is transmitted together with the audio signal and it reacts to
that signal by giving access to it according to the above explained priority order. This 7V signal is typical of the MILLENNIUM devices, except for the 1205 .
• Normally non- MILLENNIUM audio sources should be connected to the sound system through their specific pre-amplifiers ( 1105 , 1106 and 1107 ). If we wanted an audio signal that does not come from a
MILLENNIUM device to directly enter the amplifier, we must connect it to one of the PIN inputs. In order for this signal to be detected by the PIN inputs, a signal of 15 V must be provided to the terminal block
" 0 ", and it will have to remain present as long as we want the signal to keep being broadcast.
• Regarding the amplified output, it can be configured in two different ways: two 5 W outputs over a minimum load of 4 W each or as a single 10 W output over a minimum 8 W load.
• The amplifier itself is able to detect how the speakers are connected (if connected only to the 10 W output or if distributed between the two 5 W outputs) and gets automatically self-configured according to this.
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connection to 1105 pre-amplified XLR
microphone base and 1206 digital control keyboard
Digital 10 W amplifier 1311
1311 Digital 10 W amplifier. 15 V
• 10 W digital amplifier with 4 channels.
• With 3 mixed audio inputs with priority, one of then adjustable.
• To be installed in 100 x 100 mm standard connection box.
• It can be controlled from the 1202 control console, from 1206.xx digital control keyboards or
using standard electric push buttons.
• 15 V power supply from the general line or from an auxiliary power supply 1307.1 .
Schematics
1
NUMBER OF SPEAKERS IN EACH ZONE
4
8 + 8
2
4 + 4 1 + 1
Min. impedance
8 W
Min. impedance
4 W
10 W
32 W
5+5 W
16 W 4 W
4
8 + 8
2
4 + 4 1 + 1
10 W
32 W
5+5 W
16 W 4 W
0917
Speakers output
Speakers common output
15 V power supply
Ground
Message audio and general call
15 V priority input
Priority audio inputs
Adjustable priority audio input
Jumper position for "0" to operate
Input of 4 music channels
Digital data
Connection to external push buttons
or to 1206 digital control keyboard
SETUP button
1311
2
General line
0918
1206 1107 1105
1311
T L 9 90 8 7 6 5
2
4
1
PIN1
PIN2
PIN3
0
2 4 MIC OUT
2 4 IN MIC IN
OUT OUT
L
T
4
2
4
5 W
5 W
or 10 W
TECHNICAL SPECIFICATIONS 1311
Power supply
Consumption
Power
15 V
16 W
10 W; min. line impedance 8 W
or 5 + 5 W; min. line impedance 4 W
7 V to activate inputs
IN or PIN of other modules.