evertz 500DA2Q-AESU User manual

Frame Manual
500DA2Q-AESU Dual Unbalanced AES Audio Distribution Amplifier
Revision 1.2
TABLE OF CONTENTS
1. OVERVIEW.........................................................................................................................................1
2. INSTALLATION..................................................................................................................................2
3. SPECIFICATIONS..............................................................................................................................3
3.1. AES AUDIO INPUTS.................................................................................................................3
3.2. AES AUDIO OUTPUTS.............................................................................................................3
3.3. ELECTRICAL ............................................................................................................................3
3.4. PHYSICAL.................................................................................................................................3
4. STATUS LEDS...................................................................................................................................4
5. JUMPERS AND USER ADJUSTMENTS...........................................................................................5
5.1. SELECTING THE DA CONFIGURATION.................................................................................5
5.2. INPUT TERMINATION JUMPERS............................................................................................5
5.3. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS.........................................................................................6
Figures
Figure 1-1: 500DA2Q-AESU Block Diagram.......................................................................................................1
Figure 2-1: 500DA2Q-AESU Rear Panel Overlay...............................................................................................2
Figure 5-1: LED and Jumper Locations ..............................................................................................................5

Frame Manual
500DA2Q-AESU Dual Unbalanced AES Audio Distribution Amplifier
Revision 1.2
REVISION HISTORY
REVISION DESCRIPTION DATE
1.0 Original Version Mar 03
1.1 Updated Block Diagram, LED and Jumper information Mar 03
1.2 Fixed formatting and typos Jul 07
Information contained in this manual is believed to be accurate and reliable. However, Evertz assumes no responsibility for the use thereof nor for
the rights of third parties, which may be effected in any way by the use thereof. Any representations in this document concerning performance of
Evertz products are for informational use only and are not warranties of future performance, either express or implied. The only warranty offered by
Evertz in relation to this product is the Evertz standard limited warranty, stated in the sales contract or order confirmation form.
Although every attempt has been made to accurately describe the features, installation and operation of this product in this manual, no warranty is
granted nor liability assumed in relation to any errors or omissions unless specifically undertaken in the Evertz sales contract or order confirmation.
Information contained in this manual is periodically updated and changes will be incorporated into subsequent editions. If you encounter an error,
please notify Evertz Customer Service department. Evertz reserves the right, without notice or liability, to make changes in equipment design or
specifications.

Frame Manual
500DA2Q-AESU Dual Unbalanced AES Audio Distribution Amplifier
Revision 1.2 500DA2Q-AESU - 1
1. OVERVIEW
The 500DA2Q-AESU provides an economical method of distribution for your AES digital audio signals.
The DA’s feature two auto-equalized inputs with four re-clocked outputs each. The module can also be
configured for one input with eight reclocked outputs for applications where a larger numbers of outputs
are required.
The 500DA2Q-AESU is housed in the 500FR Frame that will hold up to 16 modules.
Features:
• Supports SMPTE 276M standard for AES audio on 75 Ωcoax
• 2 independent distribution amplifiers with 4 reclocked outputs provides jitter reduction
• Can be configured as one 8 output distribution amplifier
• Automatic equalization provides extended cable length capabilities
• High impedance or 75 ohm termination on inputs (jumper selectable)
• Card edge indicators for AES present, reclocker rate, and AES validity bit
• Tally output of input error conditions
AES Inputs
(SMPTE 276M) AES Outputs
(SMPTE 276M)
Module Status
Control
Indicators
Input
Coupling
75
Ω
AES1 Valid
Reclocker1 Rate
AES
Reclocker
48 kHz 44 kHz 32 kHz
Equalizer
AES1
Present
Input
Coupling
75
Ω
Reclocker2 Rate
AES
Reclocker
48 kHz 44 kHz 32 kHz
Equalizer
AES2
Present
AES2 Valid
Figure 1-1: 500DA2Q-AESU Block Diagram

Frame Manual
500DA2Q-AESU Dual Unbalanced AES Audio Distribution Amplifier
500DA2Q-AESU - 2 Revision 1.2
2. INSTALLATION
The 500DA2Q-AESU comes with a companion rear panel overlay that can be placed over the rear panel
BNC connectors to identify their function. For information on inserting the module into the frame see
section 3 of the 500FR chapter.
Figure 2-1: 500DA2Q-AESU Rear Panel Overlay
IN 1, 2 Input BNC connectors for unbalanced AES audio signals compatible with the SMPTE 276M
standard.
OUT 1 to 4 These four BNC connectors are reclocked unbalanced AES outputs, compatible with the
SMPTE 276M and are associated with input 1
OUT 5 to 8 These four BNC connectors are reclocked unbalanced AES outputs, compatible with the
SMPTE 276M and are normally associated with input 2. They can be configured as additional
outputs associated with input 1.

Frame Manual
500DA2Q-AESU Dual Unbalanced AES Audio Distribution Amplifier
Revision 1.2 500DA2Q-AESU - 3
3. SPECIFICATIONS
3.1. AES AUDIO INPUTS
Number of Inputs: 2
Standard: SMPTE 276M, single ended AES
Connectors: BNC per IEC 169-8
Coupling: Transformer
Signal Level: 1V p-p ±0.1V
Equalization: Automatic 1500m @48KHz with Belden 1694A or equivalent cable
Impedance: 75 Ohms
Return Loss: >25 dB 100 kHz to 6 MHz
Sampling Rate: 32 KHz, 44.1 kHz, 48 kHz and 96 kHz
3.2. AES AUDIO OUTPUTS
Number of Outputs: 4 reclocked outputs per input (normal)
8 outputs from input 1 (jumper selectable)
Standard: SMPTE 276M, single ended AES
Connectors: BNC per IEC 169-8
Signal Level: 1V p-p ±0.1V
Impedance: 75 Ohms unbalanced
Return Loss: >25 dB 100 kHz to 6 MHz
3.3. ELECTRICAL
Voltage: + 12VDC
Power: 1.2 Watts.
3.4. PHYSICAL
Number of slots: 1

Frame Manual
500DA2Q-AESU Dual Unbalanced AES Audio Distribution Amplifier
500DA2Q-AESU - 4 Revision 1.2
4. STATUS LEDS
The 500DA2Q-AESU has twelve LED Status indicators on the front card edge to show operational status
of the card at a glance. Figure 5-1 shows the location of the LEDs.
Two large LEDs on the front of the board indicate the general health of the module:
LOCAL FAULT: This Red LED indicates poor module health and will be On during the absence of a
valid input signal, or if a local input power fault exists (i.e.: a blown fuse). The
LOCAL FAULT indication can also be reported to the frame through the FRAME
STATUS jumper.
MODULE OK: This Green LED indicates good module health. It will be On when a valid input
signal is present, and the board power is good.
There are five small LEDs for each input that indicate the status of the input AES audio.
AES PRESENT: This LED will be On when there is an AES carrier present at the input to the module.
48 kHz: The reclocker is currently locked to 48 kHz
44 kHz: The reclocker is currently locked to 44.1 kHz
32 kHz: The reclocker is currently locked to 32 kHz
AES VBIT This LED indicates the status of the AES validity bit. When the LED is Off it
indicates that the AES sample data is suitable for conversion to an analog audio
signal. When the LED is On it indicates that the AES sample data is carrying data
such as Dolby E and is not suitable for conversion to an analog audio signal.

Frame Manual
500DA2Q-AESU Dual Unbalanced AES Audio Distribution Amplifier
Revision 1.2 500DA2Q-AESU - 5
5. JUMPERS AND USER ADJUSTMENTS
+12V GND
MODULE STATUS
(A)500DA-AES-UB
J1 FRAME STATUS
ON
OFF
J5
HI-ZTERM
AES2 PRESENT
AES2 48 KHZ
AES2 44 KHZ
AES2 32 KHZ
AES2 VBIT
AES1 PRESENT
AES1 48 KHZ
AES1 44 KHZ
AES1 32 KHZ
AES1 VBIT
J7
TERMINATION
HI-ZTERM
TERMINATION
J3
SINGLE 1X8
DUAL 1X4
Figure 5-1: LED and Jumper Locations
5.1. SELECTING THE DA CONFIGURATION
DA CONFIG: To configure the 500DA2Q-AESU for four outputs from Input 1 and four outputs
from Input 2, move the jumper J3 to the DUAL 1x4 position.
To configure the 500DA2Q-AESU for eight outputs from Input 1, move the jumper
J3 to the SINGLE 1x8 position.
5.2. INPUT TERMINATION JUMPERS
The TERMINATION jumpers J5 and J7, located at the rear of the module, determines whether the input
signals will be terminated or not. J5 is for input 1 and J7 is for input 2
TERMINATION When set in the "TERM" position, (default) the input impedance is set to 75 Ohms.
Use this position when the cable stops at this card. It will provide the proper
impedance to eliminate electrical reflections.
If set to "UNTERM", the input will be high impedance. Use this position when the
signal does NOT stop at this card. Install a "T" connector on the INPUT BNC to
"loop" the signal through this card.
"WARNING: Make sure that the final destination of the signal is terminated.
Otherwise, reflections will occur affecting the signal throughout the cable.

Frame Manual
500DA2Q-AESU Dual Unbalanced AES Audio Distribution Amplifier
500DA2Q-AESU - 6 Revision 1.2
5.3. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS
The FRAME STATUS jumper J1, located at the front of the module, determines whether local faults (as
shown by the Local Fault indicator) will be connected to the 500FR frame's global status bus.
FRAME STATUS: To monitor faults on this module with the frame status indicators (on the power
supply’s FRAME STATUS LED's and on the Frame's Fault Tally output) install this
jumper in the On position.
When this jumper is installed in the Off position local faults on this module will not
be monitored.