Sams AAD-2s Instruction manual

AAD-2(s)
2ch analog to 1ch digital audio
converter
- for SRU rack frame
- standalone
Copyright © 1999 - 2014 Sams elektronik d.o.o.
Published: 16. april 2013.
Updated: 11. july 2014.
Z10-3 edition 1
Code: 005.302
005.303
ENGLISH
Sams elektronik d.o.o.
48 Zivka Davidovica st.
11050 Belgrade
Serbia
Tel/Fax: [phone]
[phone]
[email protected]
www.sams.rs
USER MANUAL FOR USE AND MAINTENANCE
Read the instructions before using the device.
Keep this manual for periodic usage.

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Dear User,
Thank you very much for purchasing our product.
Your purchase is a wise investment. The equipment you have purchased is manufactured with great care from
high-quality parts and materials. It is designed to fully meet the needs according to specications, if properly
installed, used and maintained according to the enclosed instructions.
Any technical failure or deciency that occurs during the warranty period specied on the invoice of the
purchased equipment will be inspected and serviced by Sams elektronik doo or an authorized service center of
the manufacturer, with the conditions set out in the warranty statement.
THIS DEVICE IS INTENDED FOR PROFESSIONAL USE.
WARRANTY STATEMENT
1. Product has declared characteristics. Within the warranty period, manufacturer ensures the removal of
technical failures, product defects or replacement of products if declared characteristics of the product are
changed.
2. If the goods are not delivered as specied with the contract, the consumer has the right to request from the
manufacturer / service provider to eliminate the lack of conformity, without charge, repair or replacement,
or to request an appropriate price reduction or terminate the contract.
3. Any repair or replacement must be made within a reasonable time without signicant inconvenience to
the consumer, taking into account the nature and the purpose for which the consumer has purchased the
product.
4. The consumer has the right to terminate the contract, if he can realize the right to repair or replacement,
or if the manufacturer / servicer has not completed repair or replacement within a reasonable time or if
the manufacturer / servicer did not perform repair or replacement without signicant inconvenience to the
consumer.
5. The consumer may not terminate the contract if the lack of conformity of the product is negligible.
6. The product will function properly when used in accordance with the user manual.
7. Period of servicing the product is 6 years from the launch on the market.
The product purchased outside the territory of Serbia does not fall under the terms of this warranty, only to 1
year factory warranty from date of purchase.
TERMS OF WARRANTY
1. The warranty period begins on the date of sale referred in the invoice.
2. The buyer loses the right to warranty if the defect cause failure from not following the user manual
instructions, improper installation, comes to mechanical damage during use, repairs and modications by
unauthorized persons, installation of non-genuine spare parts, and if the buyer does not comply with all
warnings listed in the user manual.
3. The warranty is voided if the device is damaged during the disturbances from the environment, natural
disasters (oods, hail, etc.), suffered an electric shock or lightning strike.
IMPORTANT NOTES
1. Be sure to thoroughly read the user manual.
If you have any doubts about the instructions, contact the technical support of the manufacturer.
2. Before contacting for technical help, please make sure that are provided with all necessary conditions for
normal operation.
3. If the malfunction or defect in the device does not eliminate within a reasonable time from the date of
failure, the warranty period shall be extended for as many days as the unit is in service.
4. For all maintenance interventions shall solely be authorized services listed in this Warranty Certicate.
WARRANTY

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IMPORTANT SAFEY
WARNING
TO AVOID RISK OF FIRE OR ELECTRIC SHOCK
DO NOT EXPOSE THE UNIT TO MOISTURE OR RAIN
The symbol “lightning in a triangle” is to alert the user to the presence of
high voltage. In poor conditions the user may be exposed to shock.
The symbol “exclamation mark in a triangle” is to alert the user to comply by
the terms of use in user’s manual, which is supplied with the device.
SAFETY WARNINGS FOR SRU RACK FRAME
ELECTRICAL SHOCK HAZARD
DO N OT O PEN
CAUTION
RIZIK OD S TRUJNOG UDARA
NE O TVARATI
DOK JE P OD N APONOM
UPOZORENJE
CLASS I DEVICE
Grounding is connected to the chassis of the device.
The power supply is protected with fuse against overload.
DECLARATION OF CONFORMITY for product:
SRU RACK FRAME WITH POWER SUPPLY (PSU-212) WITH CORRESPONDING MODULES AND
BACK CONNECTORS
The product is designed and manufactured according to the following regulations:
- Electromagnetic Compatibility Directive (EMC)
- Low Voltage Directive (ELV)
Documentation conrming statements can be obtained on written request for review.

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TECHNICAL SUPPORT AND SERVICE
Sams elektronik has made every effort to ensure that the equipment works in perfect condition. In
the event that problems that occur can not be resolved, or if you have any questions regarding this
equipment or information about other products produced from Sams elektronik, contact your local sales
representative or call Sams elektronik directly through one of the ways listed below:
Sales: [phone]
Technical support: [phone]
Service: [phone]
Email:
Sales - [email protected]
Technical support and service - [email protected]
Web site: www.sams.rs
Address:
SAMS ELEKTRONIK d.o.o.
48 Zivka Davidovica st
11050 Belgrade
Serbia
WARNING
TO AVOID ELECTRIC SHOCK, DO NOT OPEN COVER.
DEVICE MAINTENANCE REQUIRES PROFESSIONAL PERSON AUTHORIZED BY THE MANUFACTURER.
1. Read all safety and operating instructions before using the device.
2. Keep all safety and operating instructions.
3. Follow the instructions from the user manual.
4. Do not upgrade device, except in the case advised by the manufacturer.
5. Do not use the device in the presence of water and / or moisture.
6. Do not pour water or moisten the device with any type of liquid.
7. Openings on device are provided for ventilation.
8. Do not block air ow through the ventilation openings.
9. This product is powered by AC ~ 230V ± 10%, 50Hz.
10. This product is equipped with a three-wire cord with grounding.
11. This device is equipped with a protective fuse in the power outlet. Do not bypass fuse.
12. Do not replace the fuse. Replacement can be made by a person authorized by the manufacturer.
13. Do not bend the power cord so that it can be damaged.
14. Connect connectors as in the enclosed instructions. Deviations from the allowed values predicted
for the inputs and outputs of the device can cause severe damage and warranty void.
15. Do not use the device in an environment that contains ammable or explosive materials in any
physical state.
16. Turn off the power corde before cleaning. Do not use liquid, aerosol or ammable cleaners. Use
only a dry cloth.
17. Servicing is performed by a qualied person. Removing the cover user is exposed to high
voltages.
18. Never use the device when the cover is open and the device is powered on.
19. Do not expose to extreme high or low temperatures.
20. Do not expose to sudden temperature changes.
21. Call service in the following cases:
- The power cord or plug is damaged
- Liquid or foreign objects is inside the device
- The machine is exposed to water and moisture
- The device does not function according to specication
- The unit has been dropped or damaged
- The characteristics are signicantly changed
22. Use only specied replacement parts.
23. Professional person authorized by the manufacturer must check the device after completion of
service.
24. Allow a free rack unit (1RU) above and below the device for ventilation or put rack fan under the
device.
Pictures and drawings listed in this user manual are for information purposes only and may differ
from the actual device. Design and specications of the device may change without prior notice.

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UNPACKING AND INSTALLATION....................................................................................6
MAINTENANCE..............................................................................................................6
REMOVAL AND STORAGE...............................................................................................6
DESCRIPTION...............................................................................................................7
MODULE INSTALATION IN SRU RACK FRAMES ................................................................9
BACK CONNECTORS ......................................................................................................11
SRU REAR SIDE ............................................................................................................12
PCB WITH THE LAYOUT OF ELEMENTS...........................................................................13
OUTPUT IMPEDANCE SELECTION...................................................................................13
FINE-TUNE OF THE INPUT LEVEL...................................................................................13
INSTALLATION (STANDALONE) ......................................................................................14
THE DEVICE FUNCTIONS...............................................................................................15
DIP-SWITCH SETUP ......................................................................................................15
NOTES .........................................................................................................................16
PageDescription
TABLE OF CONTENTS

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UNPACKING AND INSTALLATION
REMOVAL AND STORAGE
MAINTENANCE
The box contains:
- Module
- Back connector (optional)
- Protective pad for SRU rack frame (optional)
- M2.5x6/7985 screw (optional)
- SRU rack frame (optional)
- Power corde for SRU rack frame (optional)
- User manual (optional)
Before use, check the contents of the box. For any deciency report to the seller or the manufacturer
of the product.
DEVICE IS INSULATED BY PROTECTIVE WRAP AND PACKED IN A CARDBOARD BOX.
DEVICE IS SENSITIVE TO SHAKES AND DROPS. HANDLE WITH CARE DURING TRANSPORT
AND ASSEMBLY.
Check if the product is damaged during transport.
1. Before dismantling the device, switch off the power, remove
the power cord and remove all other connectors.
2. Remove the four screws for fastening.
3. Remove the device from rack cabinet.
4. Wrap the machine in the foil to protect it from dust. Package
it in a box.
5. The device must be stored in a room without moisture.
The system maintains only person authorized by Sams elektronik
doo.
Any voluntarily opening device, upgrading or servicing is strictly
prohibited and is subject to warranty void, and the possibility of
injury.
Places for fastening
PROCEDURES FOR SAFE USE OF THE DEVICE:
1. - If the device is not supplied with SRU rack frame, remove the protective wrap from the device. If
the device is supplied with SRU rack frame, remove the protective wrap from the chassis.
- For devices that are AC 230V / 50Hz powered, the device is supplied with power cord.
- Use only power corde that comes with the device.
2. SRU rack frame is mounted in a 19“ special-purpose rack cabinets designed for this type of device.
Screw device with four screws. Screws for fastening are not supplied with the device.
3. The device must be connected to ground. A device that is not connected to the grounding does
not function properly according to factory declarations and can cause adverse effects on users and
other equipment.
4. Strictly comply to all steps for proper connection of devices in the system.
5. On the SRU rack frame are 3 types of mass (CHASSIS, MAINS and 0V). The factory, all three are
connected. According to the user’s needs, the masses can be switched over between them.
Illustration - mounted device

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DESCRIPTION
V
68
AD AUDIO CONVERTER
• Sams elektronik d.o.o. • 48 Zivka Davidovica st. • 11050 Belgrade • Serbia • • [phone]; [phone] • [email protected] • www.sams.rs •
TECHNICAL SPECIFICATIONS
GENERAL INFORMATION
- Code: ....................................................................005.302
- Weight: ................................................................... 0.4 Kg
- Type: .....................................................................module
- Dimensions: ..................................................100 x 160mm
- Required: ................... SRU rack frame, back panel BCAA-61
- Delivery includes: ................................. device, user manual
ANALOG AUDIO INPUT
- Connectors: ....................................... 2, 3-pin terminal strip
- Impedance: ............................................ > 40KΩ, balanced
- S/N ratio: ...............................................................> 80dB
- Max. level: ................................................................. 24dB
REFERENCE INPUT
- Analog BB 300 mV / DARS / Word clock (optional): ....1, BNC
female
AES3 110Ω or 75Ω OUTPUT
- Connectors: ....................................... 1, 3-pin terminal strip
- Impedance: ....................................................110Ω or 75Ω
- Nominal level: .....................3.1 Vp-p ± 10% / 1V pp ± 10%
- Rising time: ......................................................4ns to 31ns
ORDERING INFORMATION
Code Name Description
005.302 AAD-2 Audio ADC
001.511 BCAA-61 Back connector
001.605 SRU-306 Rack frame for 6 modules
BACK CONNECTOR BCAA-61
Specications and designs are subject to change without notice
AAD-2
2ch analog to 1ch AES/EBU converter
- Broadcast quality
- 24bit conversion, 48 / 96 / 192 sampling rate
- 24dBU max input level
- 2ch analog inputs
- 1ch digital outputs
- The possibility of raising input level 0dbFS @ 24dBU or
0dbFS @ 18dBU
- Automatic or manual reference selection: BB / DARS / Word
clock (optional)
POWER
- Voltage: ........................................................... 2 x 12V AC
- Power: .........................................................................5W
TEMPERATURE
- Performance: .......................................................... 5-40°C
- Operating: .............................................................. 0-50°C
AAD-2 is a high quality two channel analog audio to digital one channel converter. The conversion is 24 bit and the device has
selectable sampling rates over the dip switch: 48 / 96 / 192 KHz. UNITS accepts different types of external references: Black Burst,
DARS, Free Run or Word clock (optional). Audio input level can be raised to +6 dB. Maximum input level is 24dB. The output can
be AES / EBU or SPDIF. The module is placed in the SRU-306 3RU chassis with capacity of 6 modules. Also, the device is available
in standalone version.

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V
69
AD AUDIO CONVERTER
• Sams elektronik d.o.o. • 48 Zivka Davidovica st. • 11050 Belgrade • Serbia • • [phone]; [phone] • [email protected] • www.sams.rs •
AAD-2s
2ch analog to 1ch AES/EBU converter
- Broadcast quality
- 24bit conversion, 48 / 96 / 192 sampling rate
- 24dBU max input level
- 2ch analog inputs
- 1ch digital outputs
- The possibility of raising input level 0dbFS @ 24dBU or
0dbFS @ 18dBU
- Automatic or manual reference selection: BB / DARS / Word
clock (optional)
TECHNICAL SPECIFICATIONS
GENERAL INFORMATION
- Code: ....................................................................005.303
- Weight: ................................................................... 1.5 Kg
- Type: .........................................................1RU rack frame
- Dimensions: ........................................ 1RU x 19” x 150mm
- Delivery includes: ............. device, power corde, user manual
ANALOG AUDIO INPUT
- Connectors: ............................................................. 2, XLR
- Impedance: ............................................ > 40KΩ, balanced
- S/N ratio: ...............................................................> 80dB
- Max. level: ................................................................. 24dB
REFERENCE INPUT
- Analog BB 300 mV / DARS / Word clock (optional): ....1, BNC
female
AES3 110Ω or 75Ω OUTPUT
- Connectors: ............................................................. 1, XLR
- Impedance: ....................................................110Ω or 75Ω
- Nominal level: .....................3.1 Vp-p ± 10% / 1V pp ± 10%
- Rising time: ......................................................4ns to 31ns
ORDERING INFORMATION
Code Name Description
005.303 AAD-2s Audio ADC
Specications and designs are subject to change without notice
POWER
- Voltage: ................................................. ~230V AC ± 10%
- Power: .......................................................................30W
- Frequency: ................................................................ 50Hz
- Overload protection: .............. front Mounted Circuit Breaker
TEMPERATURE
- Performance: .......................................................... 5-40°C
- Operating: .............................................................. 0-50°C
AAD-2s is a high quality two channel analog audio to digital one channel converter. The conversion is 24 bit and the device has
selectable sampling rates over the dip switch: 48 / 96 / 192 KHz. UNITS accepts different types of external references: Black Burst,
DARS, Free Run or Word clock (optional). Audio input level can be raised to +6 dB. Maximum input level is 24dB. The output can
be AES / EBU or SPDIF.
front side
rear side

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- On the front side of rack frame, unscrew the screws.
- Open the door.
MODULE INSTALATION IN SRU RACK FRAMES
Make sure that the module is set to the correct place in relation to the back connector.
BEFORE INSTALLING OR REMOVING THE MODULE FROM SRU, ALWAYS TURN OFF THE
POWER
Lock module with lever to the position.
NOTE: NEVER PLACE MODULE TO PLACE OF THE POWER SUPPLY MODULE!
The label that indicates the place for power supply module
FOR
POWER SUPPLY
ONLY
WARNING!

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1. 2.
3.
1. The module set between the guides (not metal plate).
2. Locking lever mount behind the groove.
3. Push the lever to lock in an upright position. The module is locked.

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AAD-2
AAD-2
AAD-2 G + –
AES
OUT
#1
E X T.
REF.
G + – G + –
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
AAD-2
SPDIF
OUT
#1
E X T.
REF.
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
G + – G + –
AAD-2 G + –
G +–
AES
OUT
#1
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
REF
G + – G + –
AAD-2
SPDIF
OUT
#1
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
REF
G + – G + –
G +–
AAD-2
AAD-2 G + –
AES
OUT
#1
E X T.
REF.
G + – G + –
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
AAD-2
SPDIF
OUT
#1
E X T.
REF.
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
G + – G + –
AAD-2 G + –
G +–
AES
OUT
#1
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
REF
G + – G + –
AAD-2
SPDIF
OUT
#1
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
REF
G + – G + –
G +–
AAD-2
AAD-2 G + –
AES
OUT
#1
E X T.
REF.
G + – G + –
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
AAD-2
SPDIF
OUT
#1
E X T.
REF.
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
G + – G + –
AAD-2 G + –
G +–
AES
OUT
#1
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
REF
G + – G + –
AAD-2
SPDIF
OUT
#1
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
REF
G + – G + –
G +–
AAD-2
AAD-2 G + –
AES
OUT
#1
E X T.
REF.
G + – G + –
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
AAD-2
SPDIF
OUT
#1
E X T.
REF.
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
G + – G + –
AAD-2 G + –
G +–
AES
OUT
#1
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
REF
G + – G + –
AAD-2
SPDIF
OUT
#1
ANALOG
AUDIO
IN #2
ANALOG
AUDIO
IN #1
REF
G + – G + –
G +–
EXTERNAL REFERENCE
Fix the back connector with
M2.5 screw.
AES OUTPUT #1
ANALOG INPUT #1
ANALOG INPUT #2
Optional back connectors
Be sure to install a protective pad before installing the back connectors.
BACK CONNECTORS

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HIGH VOLTAGE!
DANGER!
Place the back connector. Fix the back connector with M2.5 screw.
1. Mass
2. Power switch
3. The socket
4. Connections for back connectors
Rear side view
SRU REAR SIDE
DO NOT INSERT SHARP METAL OBJECTS OR FINGERS INTO THE SPACE BEHIND
THE POWER PANEL!
THE SIGN “LIGHTNING IN A TRIANGLE” IS TO ALERT THE USER TO THE
PRESENCE OF LIFE-THREATENING HIGH POWER.
LABEL IS PLACED NEXT TO POWER PANEL.

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Output impedance
selection 110Ω or 75Ω
OUTPUT IMPEDANCE SELECTION
FINE-TUNE OF THE INPUT LEVEL
Set the jumpers to set the output impedance.
For ne-tune of the input level use trimmers.
JMP2
OUTPUT 1
CH 1HP 1
CH 2HP 2
JMP2
75 Ω
110 Ω
Fine-tune of the input level
Dip-switch setup
PCB WITH THE LAYOUT OF ELEMENTS

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1
2
34
EXT. REF.
FUSE: 500mA
AC ~230V/50Hz
DIGITAL AUDIO OUT 1ANALOG AUDIO IN 1ANALOG AUDIO IN 2
USE ONLY WITH A 250V FUSE
www.sams.rs
Made in Serbia
AAD-2s
CODE: 000.000
SN:
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
Analog to digital audio converter AAD-2s
www.sams.rs
POWER DARS LOCKED
BB LOCKED
WC LOCKED
FREE RUN OVERFLOW CH1
OVERFLOW CH2
Connect the power cord.
The device works only on AC ~ 230 V / 50 Hz.
Rear side
Connect all necessary connectors
before the unit is turned on.
Connectors on rear side
External reference input
Device supports:
DARS, BB, WC
EXT. REF.
DIGITAL AUDIO OUT 1ANALOG AUDIO IN 1ANALOG AUDIO IN 2
Analog audio inputs Digital audio outputs
Turn on the device
by pressing switch. LEDs will illuminate according to setup.
Front side
INSTALLATION (STANDALONE)

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Set dip-switch by numbers as appropriate:
- 48KHz sample rate.
- 96KHz sample rate.
- 192KHz sample rate.
- Free run. Refers to the ext. reference. Connected ext. reference will not affect on the device.
- High pass lter. Ampliers can generate a small DC offset. In order to eliminate this activate this
option.
- Gain +6db. Raises the level ch1 for +6dB.
- Gain +6db. Raises the level ch2 for +6dB.
1
2
34
EXT. REF.
FUSE: 500mA
AC ~230V/50Hz
DIGITAL AUDIO OUT 1ANALOG AUDIO IN 1ANALOG AUDIO IN 2
USE ONLY WITH A 250V FUSE
www.sams.rs
Made in Serbia
AAD-2s
CODE: 000.000
SN:
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
Analog to digital audio converter AAD-2s
www.sams.rs
POWER DARS LOCKED
BB LOCKED
WC LOCKED
FREE RUN OVERFLOW CH1
OVERFLOW CH2
Uključiti uređaj pritiskom
prekidača. Diode će svetleti prema podešavanju.
Prednja strana
Priključiti strujni kabl.
Uređaj radi samo na AC ~230 V /50Hz.
Zadnja strana
Priključiti sve potrebne kablove na
konektore pre nego sto se uredjaj ukljuci.
Konektori sa zadnje strane uredjaja
Ulaz eksterne rererence
Uređaj podržava: DARS, BB,WC
Analogni audio ulazi Digitalni audio izlaz
EXT. REF.
DIGITAL AUDIO OUT 1ANALOG AUDIO IN 1ANALOG AUDIO IN 2
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
Front side
THE DEVICE FUNCTIONS
STATUS LEDs:
DARS LOCKED - The device is connected to the DARS reference (green LED)
BB LOCKED - The device is connected to the Black Burst reference (green LED)
WC LOCKED - The device is connected to the Word Clock reference (green LED)
FREE RUN - The device is connected to the external reference or dip-switch is set (yellow LED)
OVERFLOW CH1 - Warning that the analog input is close to 24dB (red LED)
OVERFLOW CH2 - Warning that the analog input is close to 24dB (red LED)
When the device is on and if it’s properly connected, the status is displayed.
DIP-SWITCH SETUP

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NOTES