Albalá Ingenieros AAD3014C01 User manual

AAD3014C01
DUAL 1 INPUT TO 6 OUTPUTS ANALOG AUDIO DISTRIBUTOR WITH
REMOTE GAIN CONTROL
Version 2.0
Albalá Ingenieros, S.A.
Medea, 4 - 28037 Madrid - Spain
29 June 2020 - © Albalá Ingenieros S.A. - All rights reserved

AAD3014C01

AAD3014C01
DUAL 1 INPUT TO 6 OUTPUTS ANALOG AUDIO DISTRIBUTOR WITH REMOTE
GAIN CONTROL
Version 2.0
1. DESCRIPTION ...................................................................................................................... 5
1.1. The AAD3014C01 ........................................................................................................................... 5
1.2. Features ............................................................................................................................................. 6
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. Power considerations ................................................................................................................. 12
3.5. Installing the module in the mounting frame ................................................................... 12
3.6. Interconnection ............................................................................................................................ 14
3.6.1. Analog audio connections ............................................................................................... 14
4. OPERATION ...................................................................................................................... 17
4.1. Front panel description .............................................................................................................. 17
4.2. Functional description ............................................................................................................... 18
4.3. Module remote control and supervision ............................................................................. 19
4.3.1. Details of the AAD3014C01 registers .......................................................................... 20
5. GLOSSARY ........................................................................................................................ 23
6. REGULATIONS .................................................................................................................. 25
7. VERSIONS ......................................................................................................................... 27

AAD3014C01

Albalá Ingenieros | Manual AAD3014C01
1. DESCRIPTION
1.1. The AAD3014C01
The AAD3014C01 is a two channel, low distortion audio amplifier-distributor. Each
channel provides six outputs, and both inputs and outputs are balanced.
The level adjust for each channel of the AAD3014C01 is performed remotely from a PC.
The range of level adjust runs from -24 to +24dB. The two channels can also be silenced
by applying the maximum attenuation.
The AAD3014C01 is equipped with detectors for overload and signal absence. The
thresholds for the overload and signal absence detectors are user-programmable. The
timing period for the signal absence detector is also programmable so that long periods
of silence in a program are not falsely detected as an absence of signal.
In order to adjust the gain, configure the error detectors and supervise the status of the
AAD3014C01 a communications controllers must be installed in the same mounting
frame. Certain communications controller models allow SNMP management along with
the possibility of saving the event log detailing the date and time for later analysis.
The AAD3014C01 is a TL3000 terminal line module and can be housed in a three rack
unit (3 RU) UR3000 mounting frame or a 1 RU UR3100 mounting frame.
The AAD30X4 family includes a group of analog audio distributors with the following
variants:
•AAD3014C01: A dual analog audio distributor with one input and six outputs per
channel along with remote gain adjustment.
•AAD3024C01: A dual analog audio distributor with one input and three outputs per
channel along with remote gain adjustment.
•AAD3034C01: A quadruple analog audio distributor with one input and three outputs
per channel, remote gain adjustment and channel summing.
5

Albalá Ingenieros | Manual AAD3014C01
1.2. Features
• Analog audio amplifier and distributor with remote supervision and control.
• Independent gain adjustment for each channel.
• Provides two independent channels.
• Each channel distributes one audio input to six outputs.
• Signal presence and signal overload detectors for each input.
•Allows combining both channels to provide one monaural channel with 6dB
attenuation before summing (only in v2.0).
• Excellent intermodulation.
• Gain adjustment from -24 to +24dB per channel.
• Low impedance outputs can drive loads of up to 600Ω at maximum signal levels.
• Front panel indicator for absence of signal for each channel.
•Module control and supervision can be done remotely when the mounting frame is
equipped with a communications controller module.
•One UR3000 mounting frame can house up to 12 AAD3014C01 modules. If power
supply redundancy is required and FA3000 or FA3001 modules are used then only 10
modules can be housed in the mounting frame. If PSU3300 or PSU3301 modules are
used for this purpose then up to 12 modules can be installed.
• One UR3100 mounting frame can house up to three AAD3014C01 modules.
• Low power.
6

Albalá Ingenieros | Manual AAD3014C01
1.3. Block diagram
7

Albalá Ingenieros | Manual AAD3014C01
AAD3014C01
8

Albalá Ingenieros | Manual AAD3014C01
2. SPECIFICATIONS
Analog audio signal input
Connector Plug-in terminal,
3.81mm pitch
Impedance >24 kΩ
Type Active balanced
Number of inputs 1 per channel, 2 channels
Common mode rejection ratio (CMRR):
at 50 Hz >75 dB
at 20 kHz >75 dB
Maximum common mode range ±12 V
Maximum input level 24 dBu
Analog audio signal output
Connector Plug-in terminal,
3.81mm pitch
Impedance 50Ω ± 1 %
Type Active balanced
Number of outputs 6 per channel
Difference between a 600Ω loaded output and an unloaded output 0.7 dB
Maximum output level +24 dBu
Output offset voltage <100 mV
Short-circuitable outputs Yes
Analog audio signal
Gain adjust range:
Discrete +24 .. -24dB with 0.5dB steps
Frequency response +0.1/-0.2dB from 20Hz to 20 kHz
3 dB cuttoff frequency:
Upper >150 kHz
Crosstalk between channels <- 100dB measured with a 1kHz
tone and 0dB gain
Crosstalk between modules <- 100dB measured with a 1kHz
tone and 0dB gain
Noise <80dBu measured from
20Hz to 20kHz and 0dB gain
Harmonic distortion plus noise (THD+N) <0.004 % measured with a 1kHz
maximum level tone,
output loaded with 600 Ω
General
Maximum power supply current + 700 / - 700 mA
9

Albalá Ingenieros | Manual AAD3014C01
Operating temperature range 0 .. 50 °C
Approximate weight 350 g
10