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.
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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.
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Albalá Ingenieros | Manual AAD3014C01
1.3. Block diagram
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Albalá Ingenieros | Manual AAD3014C01
AAD3014C01
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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
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Albalá Ingenieros | Manual AAD3014C01
Operating temperature range 0 .. 50 °C
Approximate weight 350 g
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Albalá Ingenieros | Manual AAD3014C01
3. INSTALLATION
THE AAD3014C01 MODULE CONTAINS ELECTRONIC DEVICES SENSITIVE TO
ELECTROSTATIC DISCHARGE. Always use antistatic bags clearly identified
with a high degree of shielding for storage and transportation.
The AAD3014C01 module is composed of two parts: one AAD3014P01 main board and
one XAD3000P02 rear board. Both parts must be installed in a UR3000 or UR3100
mounting frame following the instructions in the corresponding section of this chapter.
3.1. Initial inspection
Verify that the package has been properly handled during transport. After opening the
packaging, check that one AAD3014P01 main board and one XAD3000P02 rear board are
inside.
You must notify your Albalá Ingenieros distributor or dealer of any damage or defects
observed.
Follow the instructions in this manual to install this module in the mounting frame.
3.2. Safety instructions
•This equipment must be connected to a mains outlet with a protective
earth connection. Never use extension cords that do not have protective
earthing connection. The lack of an effective electrical connection between
the ground pin in the mains input connector of the equipment and the
protective earth of the electrical power distribution can cause serious harm.
•All modules of the Albalá Ingenieros TL3000 terminal line can be
hot-plugged or unplugged without suffering any damage or affecting the
processes that are currently taking place in other modules in the same
mounting frame. When a module is installed in an empty bay of a mounting
frame, it is necessary to mount the rear board that is part of that module.
Prior to installing this board, the mounting frame must be disconnected
from the power supply network. This is required because in addition to the
risk of electrocution for the person handling the device it is possible that a
high instantaneous current coming from the power supply could damage
the connectors and components of the mounting frame and/or the rear
board.
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Albalá Ingenieros | Manual AAD3014C01
•The AAD3014C01 module and the mounting frame should always be
installed, maintained, operated and removed by personnel with sufficient
technical qualifications. The equipment should never be placed in damp
areas, near splashing liquid, or in explosive or corrosive atmospheres.
Neither modules nor mounting frames can be used in applications that
could endanger human life.
3.3. Environmental considerations
This symbol indicates that this equipment must be deposited at a collection
point for proper waste treatment once it has reached the end of its useful
life.
3.4. Power considerations
The power supplies in the mounting frames of the TL3000 family have been designed to
supply 6 W/slot. The power consumption of the majority of the TL3000 family of
modules is less than 6 W under all conditions, therefore each mounting frame can house
as many modules as it has slots.
Under normal circumstances (with music or vocal signals with levels of 4dBu) the power
consumption of the AAD3014C01 is less than 6W and therefore up to 12 modules can be
installed in a UR3000 mounting frame or up to three modules in a UR3100.
If the AAD3014C01 is used to distribute signals with a higher average level and the
outputs are loaded with 600Ω then the power consumption of the module can exceed
the 6 W reserved per slot. In such cases the total number of AAD3014C01 modules that
can be installed in a mounting frame is lower than the number of available slots.
Use the following expression to calculate the actual power consumption of the
AAD3014C01 and to determine how many modules can be installed in a given mounting
frame without exceeding the capabilities of its power supply:
Power Consumption = 6.5W + (P output (W)/0.6) * Number of Outputs Used
3.5. Installing the module in the mounting frame
The steps needed to install the AAD3014C01 module with the rear board in the
mounting frame are:
1 - Disconnect all power cords from the power supplies of the mounting frame.
2 - Remove the blank panels covering the front and rear of the empty bays chosen for
installing the AAD3014C01 in the mounting frame.
3 - Install the XAD3000P02 rear board ensuring that its 12-pin connectors are properly
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Albalá Ingenieros | Manual AAD3014C01
aligned with the mounting frame´s mating connectors. Check that the orientation of
the board is correct by looking at the placement of the text printed on it according to
the illustration below.
Details for installation of the module in 3 RU mounting frames
Details for installation of the module in 1 RU mounting frames
4 - Attach the rear board to the mounting frame with two M3 metric screws and tighten.
5 - Insert the AAD3014P01 board (main board of the AAD3014C01 module) into the front
of the mounting frame. The edges of the card slide into two plastic guides inside the
mounting frame.
6 - Affix the main board to the mounting frame using the two screws included on the
front panel.
After these steps, the module is ready to be connected to other equipment.
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Albalá Ingenieros | Manual AAD3014C01
3.6. Interconnection
The following figure shows the AAD3014C01 module rear board connector layout.
Rear view of the AAD3014C01
The AAD3014C01 module provides two analog audio inputs (IN-A,IN-B) and six outputs
(OUT1-A to OUT6-A,OUT1-B to OUT6-B) per section.
The distributor's balanced outputs are generated with two independent amplifiers - one
with a gain of +1 and the other with a gain of -1. If unbalanced operation is desired then
the number of outputs per channel is doubled (12 instead of six), however the maximum
output signal level cannot exceed 18dBm over 600Ω. Keep in mind that the output
marked with the negative (-) sign is 180oout of phase with the signal at the output
marked by a positive (+) sign.
The rear interconnection board is not designed to withstand mechanical stress. The
wiring must be fastened properly to the frame where the mounting frame is housed to
prevent the rear board from supporting the weight of the cables.
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Albalá Ingenieros | Manual AAD3014C01
3.6.1. Analog audio connections
Analog audio inputs are high impedance, balanced and use 3.81mm pitch terminal
block connectors. If another termination resistance is required, a resistor with the
desired termination value can be externally mounted between the + and - terminals.
The analog audio outputs are balanced, use 3.81mm pitch terminal block connectors
and their characteristic impedance is 50Ω.
For analog audio connections two-wire shielded cable is preferred. The GND terminal
allows connection of the cable shield.
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Albalá Ingenieros | Manual AAD3014C01
AAD3014C01
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Albalá Ingenieros | Manual AAD3014C01
4. OPERATION
This section describes the significance of the front panel indicators of the AAD3014C01
module and their remote control and monitoring ability.
4.1. Front panel description
The appearance of the front panel and the elements it contains are shown in the
following illustration.
Front panel of the AAD3014C01
The panel contains the following elements:
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Albalá Ingenieros | Manual AAD3014C01
In the upper box:
R (A): Red. This LED lights up to indicate that no signal is present in Channel R.
L (B): Red. This LED lights up to indicate that no signal is present in Channel L.
4.2. Functional description
The AAD3014C01 can distribute two audio channels to six outputs. Each channel
provides an independent gain adjust between -24 and +24dB along with detector for
signal absence and overload.
The detector for absence of signal are not instantaneous. The signal absence detector
has an adjustable activation delay time from three to 250 seconds in order to avoid false
tripping due to periods of silence in the program. Finally, the overload detector is nearly
instantaneous, with a response time of approximately 2ms.
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Albalá Ingenieros | Manual AAD3014C01
HUB/SWITCH
TL3000
COMMUNICATIONS
CONTROLLER MODULE
OTHER TL3000
MODULES
Ethernet
Ethernet
Ethernet
Ethernet
REMOTE CONTROL UNIT
EIA-RS232
EIA-RS485
TLE3100
LINK
FULLDUP.
100M
RXPCK.
TXPCK.
ERROR
ETHERNET
RXCMD.
TXCMD.
ERROR
EIA-232/485
RX DATA
TX DATA
INT.BUS
DEM3000 DEM3000 DEM3000 DEM3000 DEM30 00 DEM3000 DEM3000 DEM3000 DEM300 0 DEM3000 DEM3000 DEM3000 DEM3000
UR3000 INTERNAL BUS
TLE3100
LINK
FULLDUP.
100M
RXPCK.
TXPCK.
ERROR
ETHERNET
RXCMD.
TXCMD.
ERROR
EIA-232/485
RX DATA
TX DATA
INT.BUS
DEM3000 DEM3000 DEM3000 DEM3000 DEM30 00 DEM3000 DEM3000 DEM3000 DEM300 0 DEM3000 DEM3000 DEM3000 DEM3000
UR3000 INTERNAL BUS
Module remote control and supervision
4.3. Module remote control and supervision
The AAD3014C01 can optionally be remotely controlled/supervised.
In order to perform remote configuration and supervision of the module an optional
TL3000 family remote communications controller must be installed in the mounting
frame.
The main function of the communications control module is to interface between a
10/100 Ethernet port, an EIA-RS232 or an EIA-RS485 serial port and the internal bus of
the mounting frame. The following illustration shows the most common control
situations: from a computer or control panel via Ethernet, from a computer via an
EIA-RS232 serial port and from a control panel via an EIA-RS485 serial port.
Certain communications control modules provide additional, more advanced functions
such as an SNMP agent, logging of status changes of the modules and a Web interface
for remote control, etc.
Software for simple configuration and supervision with a GUI for multiple modules can
be downloaded from the Albalá Ingenieros website.
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Albalá Ingenieros | Manual AAD3014C01
The following functions of the AAD3014C01 can be performed remotely:
- Signal level adjustment.
- Configuration of the signal absence and overload detectors.
- Supervision of the status of the error detectors.
4.3.1. Details of the AAD3014C01 registers
The AAD3014C01 module provides control and status registers that can be read and
written by means of specific commands described in the communication control
module user manuals.
The parameter information grouped in the CONTROL or RAM sections is stored in
volatile memory. Any modifications to the parameters will be lost when the module
power supply is disconnected unless the "EEPROM Save" button within the software
has been pressed.
The STATUS section parameters are read-only and cannot be modified.
The parameters that can be controlled and supervised remotely for each version of
the firmware are listed below:
VERSION 2.X
CONTROL
Name add ext msk snmp trap Description
MONO 0x00 0x01 Y N Allows summing R&L to make a monophonic channel
0=Disabled, 1=Enabled
SILENCE_MASK_R 0x01 0x01 N N Allows masking silence fail right channel
0=Disabled, 1=Enabled
OVERLD_MASK_L 0x01 0x02 N N Allows masking silence fail left channel
0=Disabled, 1=Enabled
OVERLD_MASK_R 0x01 0x04 N N Allows masking overload fail right channel
0=Disabled, 1=Enabled
SILENCE_MASK_L 0x01 0x08 N N Allows masking overload fail left channel
0=Disabled, 1=Enabled
GAIN_R 0x02 0xFF Y N Allows adjusting right channel gain
= x/2-96 dB
GAIN_L 0x03 0xFF Y N Allows adjusting left channel gain
= x/2-96 dB
OVL_THR_LEVEL 0x04 0xFF Y N Overload threshold level
= x/2 dBu (-128=<- ? dBu)
SIL_THR_LEVEL 0x05 0xFF Y N Silence threshold level
= x/2 dBu (-128=<- ? dBu)
NO_SIG_TOUT 0x06 0xFF Y N Silence timeout
= x s
STATUS
Name add ext msk snmp trap Description
SILENCE_R 0x01 0x01 Y Y Silence fail right channel
0=OK,1=Fail
SILENCE_L 0x01 0x02 Y Y Silence fail left channel
0=OK,1=Fail
OVERLOAD_R 0x01 0x04 Y Y Overload fail right channel
0=OK,1=Fail
OVERLOAD_L 0x01 0x08 Y Y Overload fail left channel
0=OK,1=Fail
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