Albalá Ingenieros, S.A. AAD2000C03 Manual de usuario
AAD2000C03
1 INPUT TO 3 OUTPUTS ANALOG AUDIO DISTRIBUTOR WITH XLR
CONNECTORS
Version 1.0
Albalá Ingenieros, S.A.
Medea, 4 - 28037 Madrid - Spain
10 October 2016 - © Albalá Ingenieros S.A. - All rights reserved
AAD2000C03
AAD2000C03
1 INPUT TO 3 OUTPUTS ANALOG AUDIO DISTRIBUTOR WITH XLR CONNECTORS
Version 1.0
1. DESCRIPTION ...................................................................................................................... 5
1.1. The AAD2000C03 ........................................................................................................................... 5
1.2. Features ............................................................................................................................................. 5
1.3. Block diagram .................................................................................................................................. 7
2. SPECIFICATIONS ................................................................................................................. 9
3. INSTALLATION .................................................................................................................. 11
3.1. Initial inspection .......................................................................................................................... 11
3.2. Safety instructions ...................................................................................................................... 11
3.3. Environmental considerations ................................................................................................ 12
3.4. Installing the module in the mounting frame ................................................................... 12
3.5. Interconnection ............................................................................................................................ 12
3.5.1. Analog audio connections ............................................................................................... 13
4. OPERATION ...................................................................................................................... 15
4.1. Front panel description .............................................................................................................. 15
4.1.1. Functions of the INPUT LEVEL LED ................................................................................ 16
4.2. Module remote control and supervision ............................................................................. 17
4.2.1. Details of the AAD2000C03 registers .......................................................................... 18
5. GLOSSARY ........................................................................................................................ 19
6. REGULATIONS .................................................................................................................. 21
7. VERSIONS ......................................................................................................................... 23
AAD2000C03
Albalá Ingenieros | Manual AAD2000C03
1. DESCRIPTION
1.1. The AAD2000C03
The AAD2000C03 is a low-distortion amplifier-distributor module designed for use in
professional audio environments.
The module includes one input and three balanced outputs using XLR connectors.
The module includes a potentiometer for gain adjustment with a range of ±20dB.
Each audio output has an independent amplifier that improves the isolation between
channels.
The front panel includes an LED indicator that can be assigned several functions:
overload indicator, silence indicator, color changing to function as a VU meter or color
changing to function as a peak level meter.
The AAD2000 family is comprised of several audio distributors that differ in the presence
or lack of an input transformer and the type of connectors used: euroblock or XLR. The
various members of the family are described as follows:
•AAD2000C01: Distributor with one input, four outputs and euroblock terminal
connectors. Occupies one slot of a mounting frame, does not have an input transformer
and permits access to the rear bus.
•AAD2000C02: Distributor with one input, four outputs and euroblock terminal
connectors. Occupies one slot of a mounting frame, includes an input transformer and
permits access to the rear bus.
•AAD2000C03: Distributor with one input, three outputs and XLR connectors. Occupies
three slots of a mounting frame, does not have an input transformer and does not
permit access to the rear bus.
•AAD2000C04: Distributor with one input, three outputs and XLR connectors. Occupies
three slots of a mounting frame, includes an input transformer and does not permit
access to the rear bus.
It is possible to monitor the AAD2000C03 status remotely using a communications
controller module installed in the same mounting frame. In addition, certain controller
modules provide SNMP management and the ability to record events in a file including
date and time information for further analysis.
The AAD2000C03 is a TL2000 terminal line module and can be housed in a two rack unit
(2 RU) UR2000 mounting frame.
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Albalá Ingenieros | Manual AAD2000C03
1.2. Features
• Analog audio signal distributor.
• Excellent intermodulation and wide dynamic range.
• Distributes one audio input to three outputs.
• Input is electronically balanced.
• Low impedance outputs can drive loads of up to 600Ω at maximum signal levels.
• Provides gain adjustment from -20 to 20dB via front panel potentiometer.
• Provides VU or Peak Program meters.
•Module control and supervision can be done remotely when the mounting frame is
equipped with a communications controller module.
• Low power.
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Albalá Ingenieros | Manual AAD2000C03
1.3. Block diagram
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Albalá Ingenieros | Manual AAD2000C03
AAD2000C03
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Albalá Ingenieros | Manual AAD2000C03
2. SPECIFICATIONS
Analog audio signal input
Connector XLR
Impedance >20 kΩ
Type Active balanced
Common mode rejection ratio (CMRR):
at 50 Hz >65 dB
at 20 kHz >65 dB
Maximum common mode range ±12 V
Maximum input level 24 dBu
Analog audio signal output
Connector XLR
Impedance 73Ω ± 1 %
Type Active balanced
Number of outputs 3
Difference between a 600Ω loaded output and an unloaded output 1 dB
Maximum output level 24 dBu
Output offset voltage <30 mV
Short-circuitable outputs Yes
Analog audio signal
Gain adjust range:
Continuous ±20 dB
Frequency response ±0.1dB from 20Hz to 20 kHz
3 dB cuttoff frequency:
Upper >150 kHz
Upper >50 kHz
Crosstalk between modules <- 90 dB
Noise <- 90dBu measured from
20Hz to 20kHz and 0dB gain
Harmonic distortion plus noise (THD+N) <- 90dB measured with a 1kHz
maximum level tone,
20Hz to 20kHz,
output loaded withn 600 Ω
General
Power consumption 3.6 W
Operating temperature range 0 .. 50 °C
Approximate weight 140 g
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Albalá Ingenieros | Manual AAD2000C03
AAD2000C03
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