EGi Millennium, Техническое руководство

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230 V~
16 W
20 W
32 W
10+10 W
230 V~
10 W
10 W
10 W
10 W
20 W
20 W
4
2
8
T
L
90
5
6
7
1
0
PIN1
PIN2
PIN3
9
4 W
Digital 20 W amplifier 1310.1
1310.1 Digital 20 W amplifier. 230 V~
• 10 + 10 W (2 W ) / 20 W (4 W ) amplifier.
• With 3 mixed audio inputs, one of them adjustable.
• Message broadcast with override input.
• Digital assignment of zone number.
• Functional terminals for connection to general line.
• 230 V~ power supply.
Schematics
1
PIN position
for terminal block "0" to operate
TECHNICAL SPECIFICATIONS 1310.1
Power supply
Power
Power
Consumption
230 V~
20 W; minimum line impedance 4 W
10 + 10 W;minimum line imoedance 2 W
40 VA
• 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 input (see below for connection of non- MILLENNIUM devices).
3) Audio signals arriving to the IN inputs.
4) 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 10 W outputs over a minimum load of 2 W each or as a single 20 W output over a minimum 4 W load.
• The amplifier itself is able to detect how the speakers are connected (if connected only to the 20 W output or if distributed between the two 10 W outputs) and gets automatically self-configured according to this.
Terminal blocks for connection
to the general line
NUMBER OF SPEAKERS
Up to 4 speakers Up to 8 speakers
8 + 8 speakers 16 + 16 speakers
External push buttons
or 1206
keyboard connection
Speakers output
Ground
Power supply output 15 V
Priority control input.
A 15
V
signal here will give priority
to non- MILLENNIUM signals at the PIN input
(optional)
Adjustable audio input
Direct audio input
Direct audio input
Power supply lamp
SETUP push button
for zone assignment
SETUP lamp
for zone assignment
1 speaker
2 + 2 speakers
52
Output +7 V to activate
inputs IN or PIN of other
modules.