AEV Dual Switch User manual

AEV Dual Audio Switcer
AEV Broadcast Srl via della Tecnica 33, 40050 Argelato Bologna ITALY
www.aev.eu mail: [email protected]
1
Programable Audio Switcher

AEV Dual Audio Switcer
AEV Broadcast Srl via della Tecnica 33, 40050 Argelato Bologna ITALY
www.aev.eu mail: [email protected]
2
Guarantee
The equipment is warranted for a period of 2 years from the date of invoice (ex-works). The
warranty does not cover faults provoked by carelessness, natural causes and parts sub ect
to wear. In addition, the cost of shipment is not covered. The warranty will be voided if the
equipment is mishandled.
Technical Support
If you require technical support, contact AEV SERVICE giving a clear and concise account of
your speciic problem. Quote the serial number of your equipment by referring to the AEV
nameplate attached to the equipment itself as this is the most important piece of information
to be provided.
Telephone: [phone] Fax: [phone]
Factory Service and Repairs
If problems arise while the equipment is being installed, consult this manual and check that
the installation is being carried out properly. If the problems still cannot be solved, call the AEV
SERVICE Department for further information. If the problem is a minor one we can a telephone
call will probably sufice. If, on the other hand, the equipment is to be shipped to AEV for
service or repairs.
Shipping Instruction
When shipping the equipment to AEV, use the original package in order to be certain that it will
be fully protected during handling. If you need the original package, call us for a new one.
If you ship the equipment in a different packing container, take care to provide a double
package by interposing padding material between the two containers in order to fully protect
the equipment during shipment. The package should be marked “FRAGILE” in red.
Remember that the RMA number must be clearly visible on the package. If it is not, the
equipment will not be accepted.
IMPORTANT: Carefully read this paragraph as it contains important instructions concerning
operator safety and directions regarding the installation, operation and maintenance of the
equipment.
Failure to observe the safety instructions and information given in this manual constitutes an
infringement of the safety rules and design specifications provided for this piece of
equipment.
AEV Broadcast Srl declines all responsibility if any one of the safety rules given here in is not
observed.
AEV Broadcast Srl declines all responsibility if the end-user resells the product.
The equipment is to be used by people capable of operating it in a trouble-free manner and it is
assumed that they are aware of the following safety rules.
• Keep this manual with the utmost care and close at hand so that it can be consulted whenever
needed
• After unpacking the equipment, check it for condition.
• Avoid banging the equipment.
• The packing material (plastic bags, polystyrene, nails, etc.) must never be left within the reach of
the children, as these items are potential sources of danger.
• Do not use the equipment in places where the temperature is not within the recommended range,
as specified by the manufacturer.
• Before connecting the equipment, make sure the nameplate specifications correspond to the
mains electricity supply (the nameplate is located on the equipment enclosure).
• Do not remove the sticker from the equipment as it contains important specifications and the
relevant serial number.
• To oin the equipment to the mains supply, use the power cord purchased with the equipment.
• The equipment must be used only for the purpose it was designed for.
• Abuse or misuse of the equipment is extremely dangerous for people, pets and property. The
manufacturer declines all responsibility for damage and in ury resulting from improper use and
mishandling.
• Certain basic safety rules must be observed when using electrical equipment, in particular: -
Never touch the equipment with wet and/or damp hands or other parts of the body.

AEV Dual Audio Switcer
AEV Broadcast Srl via della Tecnica 33, 40050 Argelato Bologna ITALY
www.aev.eu mail: [email protected]
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- Keep the equipment away from drops of water or sprinkling systems.
- Never use the equipment near high heat sources or explosive material.
- Do not introduce any extraneous matter into the equipment.
- Do not allow children or untrained people to use the equipment.
• Before cleaning or servicing the equipment outside, disconnect it from the supply and wait at
least 2 seconds before working on it, as recommended by current safety regulations.
• In the event of faults and/or improper operation, turn off the equipment, shut off the electrical
power and call your dealer.
• Do not attempt to make repairs and/or ad ustments when covers/guards or circuit boards are to
be removed.
• Blown fuses inside the power supply indicate that there may be a fault in the power supply itself.
The fuses must be replaced by qualified and authorised persons. It is advisable to call your nearest
dealer.
• Call your dealer for any repairs and be certain original spare parts are used.
Failure to observe this rule may adversely affect the safety level of your equipment.
• The equipment is to be connected to the mains supply and provided with adequate and efficient
earth conductors.
• The electrical wiring must be done in compliance with current electrical codes CEI 64-8 “Electrical
specification for domestic buildings”.
• When installing, leave a clearance of at least 1 cm around the equipment to allow air to pass
freely.
OTE. This piece of equipment has been manufactured to the highest standards of
workmanship. It must be used properly and serviced as recommended to ensure long-
term dependable operation.
The installation must be done in order to be able to guarantee an easy access to the cable of
feeding.
The device of dissection of the equipment is the cable of feeding, so it must be unconnected from
the equipment every time it is necessary to do any type of maintenance.

AEV Dual Audio Switcer
AEV Broadcast Srl via della Tecnica 33, 40050 Argelato Bologna ITALY
www.aev.eu mail: [email protected]
4
Contenents
Guarantee. ..........................................................2
Technical support ...................................................2
Service ....................................................... ....2
Shipping instructions ...............................................2
Warnings............................................................ 2
Contents…........................................................... 4
Introduction ............................................... ........5
General details..................................................... 6
Description ...... ................................................. 6
Front panel......................................................... 6
ear panel...................................... ................... 6
Display functions .............................. ................... 7
Stereo section...................................................... 7
MPX section..........................................................7
Setup functions ............................................. ...... 8
Description of the parameters........................................8
Logic port I/O .............................. ......................10
Blocks diagram ......................... ...........................11
Technical details ......................... ........................12

AEV Dual Audio Switcer
AEV Broadcast Srl via della Tecnica 33, 40050 Argelato Bologna ITALY
www.aev.eu mail: [email protected]
5
Introduction
Dual Switch is an audio switch has two distinct sections: one for the management and control of
two stereo signals and another for two MPX signals.
Each section has two inputs and one output.
The Stereo section for switching between a stereo source (MAIN Left + Right) and a
secondary source (IN Left + Right).
The MPX section for switching between a primary source and a secondary source MPX MPX
such as, for example, a network of bridges receiving terrestrial radio emergency, causing it
possible alarms, and performing switching of emergency.
Use as a Supervisor is ideal to allow, in remote locations, the management of signals of different
backbones such as between the satellite and a network of bridges terrestrial radio
by managing alarms and performing switching of emergency.
General details
Dual Switch is extremely easy to program using the display and the encoder on the front panel.
Dual Switch is equipped with a system of By-pass passive (Relay) able to "bypass" directly to the
control circuit and switching, connecting the main entrance (MAIN) at the output (OUT) in the
event of failure of the device extended or in case of power failure (unless this option Back-Up).
Dual Switch is equipped with an auxiliary output stereo, on RCA pin connectors to allow any
connection to recording devices and a monitor output MPX that replicates the output resulting from
switching MPX.
Dual Switch is able to accept external commands normally closed or normally open, inputs are
optically isolated
Dual Switch, trough the Logic I/O port, provides commands optocoupled output that repeat the
status of the switches and the internal audio Stereo MPX.
The state of the photocoupler output is normally open,

AEV Dual Audio Switcer
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Description
Front panel
1 TFT color graphic display for viewing all the states of the machine, audio level input and to
program the configuration parameters.
2 encoder knob
Rear panel
Stereo section: is equipped with XLR balanced input
primary, secondary and output.
MPX section: is equipped with BNC type connectors at the main, secondary and output
Monitor section: monitor BNC connector MPX and pair RCA.
Dual Switch, in the model Stereo, allows to enable a control that provides an output (OUT) the
same audio level of the selected input (MAIN or SUB).
1 Power switch.
2 socket for the power supply VDE
3 USB connector remote
4 BNC monitor MPX out
5 RCA Stereo monitor out
6 RCA Stereo monitor out
7 DB9 serial port RS232
8 BNC MPX signal out
9 BNC MPX signal Sub input
10 BNC MPX signal Main input
11 DB15 Logic I / O connector 15-pin contacts opto isolated input / output.
12 XLR Right output
13 XLR Left output
14 XLR Sub Right input
15 XLR Sub Left input
1
2
3 4 5 6
7
8 9 10
11 12 13 14 15 16 17
1
2

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16 XLR Main Right input
17 XLR Main Left input
Display functions
Stereo section
At the top of the menu, the input signal is enabled in output is highlighted with a box on red
background,
In the lower left, in correspondence to the symbols that identify the input signals (M = Main, S =
Sub), shows the levels of the Stereo input channels.
In the bottom right, starting from the top downwards, are displayed:
audio signal present at the output (MAIN or SUB)
Management mode output ( SUPER, STUDIO, MAIN, SUB)
Time to wait before switching from MAIN to SUB
Contact status which input drive signal switching Stereo
MPX section
At the top of the menu, the input signal is enabled in output is highlighted with a box on green
background,
In the lower left, in correspondence to the symbols that identify the input signals (M = main, sub =
S), displays the channel levels MPX input.
In the bottom right, starting from the top downwards, are displayed:
audio signal present at the output (MAIN or SUB)
Management mode output (SUPER, STUDIO, MAIN, SUB)
Signal Level Pilot 19KHz

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Recognition of the RDS signal and its PI code (if any)
Setup functions
You access the configuration by pressing the og dial on the right side of the display, the various
parameters are displayed in succession by turning the knob and the change is enabled by pressing
the og dial in the mailorder parameter to change.
The parameters (sub-menus) are displayed in sequence:
STE SW: mode switching Stereo section
MPX SW: mode switching MPX section
STE DELAY to SUB: Stereo section, delay time to switch from Main to Sub ( 0 - 255 sec)
STE DELAY to MAI : Stereo section, delay time to switch from Sub to Main (0 - 255 sec)
STE BLA K THR: Stereo section, the threshold of switching level
MPX DELAY to SUB: MPX section, delay time to switch from Main to Sub ( 0 - 255 sec)
MPX DELAY to MAI : MPX section, delay time to switch from Sub to Main (0 - 255 sec)
MPX BLA K THR: MPX section, the threshold of switching level
MPX PILOT LEV: MPX section, Pilot signal level 19KHz reference
MPX RDS ALARM: MPX section, selection of type of alarm signal RDS
MATCH PI: MPX section, to edit and view the code PI reference
Description of the parameters
STE SW; pressing the og dial at this menu enabling a change of mode switching section Stereo. In
succession, turning the knob, you see entries:
oSUPER: The priority input in the output is the MAIN, the level control signal is
applied on the MAIN, switching on the SUB can occur in case of lack of signal MAIN
or lowering of the level of the same below the threshold THR reference for a time
over one established. Restoring the MAIN signal input or its level above the threshold
THR, for the minimum time edited, the output will switch on the input MAIN. in this
mode is the primary external command applied via contact ST IN port Logic I / O
through which one can impose the switching input SUB regardless of the level of the
signal MAIN.
oSTUDI: The input signal at the output is determined by the state of the contact ST
IN port Logic I / O, open contact = MAIN, SUB = closed contact. The control of the
signal level, in this case, is applied to the SUB, in case of no signal or less than the
predetermined threshold THR, the end of the observation time imposed, the output is
switched to the MAIN regardless of the state contact IN ST.
oMAI ; manual setting and fixed input MAIN output, control the level of the signal
shows the status of the alarm contact output port Logic I / O but does not cause
switching. In this mode, the switch from MAIN to SUB can not be activated using the
appropriate door contact Logic I / O.
oSUB; manual setting and fixed input SUB output, control the level of the signal
shows the status of the alarm contact output port Logic I / O but does not cause
switching. In this mode, the switching from SUB MAIN can not be activated using the
appropriate door contact Logic I / O.
MPX SW; pressing the og dial at this menu enabling a change of mode switching section MPX. In
succession, turning the knob, you see entries:
•SUPER: the priority input output is the MAIN level control signal is applied on the MAIN
switch on the SUB can occur as a result of the following controls (if active):

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olack of signal MAIN or lowering of the level of the same below the threshold
THR reference for a time over one established.
odetection of a level of the 19 KHz pilot signal which differs by a value greater
than or less than ± 1 dB than the set value
oabsence of RDS signal or inconsistent data of the it
odetection of a PI code in the RDS signal, different from that set.
oRestoring the MAIN signal input or its level above the threshold THR, or one of the
checks listed above, for the minimum time edited, the output will switch on the input
MAIN. in this mode is the primary external command applied via contact ST IN port
Logic I/O through which one can impose the switching input SUB regardless of the
level of the signal MAIN.
oSTUDI: The input signal at the output is determined by the state of the contact ST
IN port Logic I/O, open contact = MAIN, SUB = closed contact. The control of the
signal level, in this case, is applied to the SUB, in case of no signal or less than the
predetermined threshold THR, the end of the observation time imposed, the output is
switched to the MAIN regardless of the state contact ST IN.
oMAI ; manual setting and fixed input MAIN output, control the level of the signal
shows the status of the alarm contact output port Logic I/O but does not cause
switching. The switch from MAIN to SUB can not be activated by contact of dedicated
Logic I/O port.
oSUB; manual setting and fixed input SUB output, control the level of the signal
shows the status of the alarm contact output port Logic I/O but does not cause
switching. Switching from SUB MAIN can not be activated by contact of dedicated
Logic I/O port.
STE DELAY to SUB; pressing the og wheel, at this entry, to access setting of the observation
time signal MAIN, beyond which, in SUPERVISOR mode (SUPER), with allame active, the output is
switched on the SUB. The available range is from 0 to 255 seconds
STE DELAY to MAI ; pressing the og wheel, at this entry, to access setting of the observation
time of the signal level SUB, beyond which, in STUDIES mode, the output is switched on MAIN. The
available range is from 0 to 255 seconds.
STE BLA K THR; pressing the og wheel, at this entry, to access setting the threshold level of
Stereo. The available range varies from -18 to -4 dB; OFF control is disabled.
MPX DELAY to SUB; pressing the og wheel, at this entry, to access setting of the observation
time signal MAIN, beyond which, in SUPERVISOR mode (SUPER), compared with alarm, the output
is switched on the SUB. The available range is from 0 to 255 seconds
MPX DELAY to MAI ; pressing the og wheel, at this entry, to access setting of the observation
time of the signal level SUB, beyond which, in STUDIES mode, the output is switched on MAIN. The
available range is from 0 to 255 seconds.
MPX BLA K THR; pressing the og dial, at this entry, to access setting the threshold level of the
stereo signal; . The available range varies from -18 to -4 dB; OFF control is disabled.
MPX PILOT LEV; pressing the og wheel, at this entry, to access setting the threshold level of the
pilot signal 19 KHz. The available range varies from -26 to -14 dB; OFF control is disabled.
.
MPX RDS ALARM; pressing the og wheel, at this item, you can then select the type of control
activated the RDS signal :
oRDS S, Control of the RDS signal, data consistency in the RDS signal
oPI CHK, Control of the PI code contained in the RDS signal
oOFF, Disabling the control signal RDS

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MATCH PI; displays the PI code set for control, pressing the og dial, at this item, you enable the
writing of the PI code starting with the first character to the left, turning the knob you select the
character and with an additional press of the og proceed the storage and the selection will move to
the next character.
Logic I/O port
Pin 2-9 :Opto 1 IN, switching control Stereo section
Pin 3-10 :Opto 2 IN, switching control MPX section
Pin 4-11 :Opto 1 OUT, state output Stereo section
Pin 5-12 :Opto 2 OUT, state output MPX section
Pin 6-13 :Opto 3 OUT, alarm level pilot signal 19 KHz
Pin 7-14 :Opto 4 OUT, alarm segnal RDS
Pin 1: +5Vdc max I=50 mA
Pin 8-15: GND

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Block diagram

AEV Dual Audio Switcer
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Techincal details
Inputs Stereo ( Main, Sub)
Analog audio input configuration Electronically balanced Left & Right
Input Impedance 10 KΩ
Common mode re ection Greater than 50 dB (30 Hz 15 KHz)
Connectors XLR Female
Output Stereo
Analog audio output configuration Electronically balanced Left & Right
Output level As Input Level in Transparent Mode,
Connectors XLR Male
Inputs MPX ( Main, Sub)
configuration Unbalanced
Composite input level 0 dBu
Impedance 10 KΩ
Connector BNC grounded to chassis
Output MPX
MPX Output configuration Unbalanced
Composite output level As Input Level in Transparent Mode
Connector BNC grounded to chassis
Monitor Stereo Output
Output configuration Unbalanced
Output level As Input Level
Output Impedance 100 Ω
Connectors PIN RCA
Monitor MPX Output
Output configuration Unbalanced
Output level As Input Level in Transparent Mode
Output Impedance 50 Ω
Connectors BNC grounded to chassis
LOGIC I PUT
Configuration Opto-coupled (with internally 330 Ω protection)
Typical Voltage input 5 Vdc (for 10 mA input)
Max Reverse Voltage 5 Vdc
Connector DSUB 15 pole female
LOGIC OUTPUT
Configuration Optic solid state relay
Max Voltage 50 Vac/dc
Max Current 100 mA
Connector DSUB 15 pole female
RS232 SERIAL CO ECTIO
Connector DSUB 9 pole female
USB SERIAL I TERFACE
Connector USB B
General Specifications
Stereo Separation degradation < 1 dB
Distortion @ 1 KHz < 0.01%
Signal to noise ratio < 85 dB (CCIR)
Power requirement 90 - 264 V ~ 50 - 60 Hz
Consumption 4 W
Power supply max power 8 W
Dimension (WxHxD) 48,3 x 19,4 x 4,4 cm 1 rack unit
Weight 2,5 Kg. (5.5 Lbs)
Operating Temp. 0 ÷ 50° C.