evertz exponent 500DA-AESU-L Manuale utente
Frame Manual
500DA-AESU-L Unbalanced AES Audio Distribution Amplifier with Loop Thru
Revision 1.0 500DA-AESU-L - i
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. INPUT TERMINATION JUMPER ..............................................................................................5
5.2. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS.........................................................................................6
Figures
Figure 1-1: 500DA-AESU-L Block Diagram Installed in 500FR-L-A-Frame .......................................................1
Figure 2-1: 500DA-AESU-L Rear Panel Overlay................................................................................................2
Figure 5-1: LED and Jumper Locations ..............................................................................................................5
Frame Manual
500DA-AESU-L Unbalanced AES Audio Distribution Amplifier with Loop Thru
500DA-AESU-L - ii Revision 1.0
REVISION HISTORY
REVISION DESCRIPTION DATE
1.0 First Release Oct 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
500DA-AESU-L Unbalanced AES Audio Distribution Amplifier with Loop Thru
Revision 1.0 500DA-AESU-L - 1
1. OVERVIEW
The 500DA-AESU-L is an eight output re-clocking and auto equalizing DA for unbalanced 75Ω AES with
passive loop thru designed for use within the Evertz high-density analog looping frame (500FR-L-A). The
DA automatically equalizes up to 1500m of Belden 1694A coax and provides re-clocked outputs with
sampling frequencies of 32kHz, 44.1kHz, 48kHz and 96kHz.
The 500DA-AESU-L card edge LED indicators provide quick and accurate assessment of the incoming
signal integrity. When installed within the 500FR-L-A, a passive loop output is available to enable
cascading of multiple DA cards. The passive loop is implemented on the 500FR-L-A back-plane. As a
result, a failure of any single card or the removal of any single card does not affect any other cards being
used for signal distribution. Up to sixteen 500DA-AESU-L cards may be cascaded error free in the
500FR-L-A frame. The 500DA-AESU-L is housed in the 3RU 500FR-L-A exponent frame that will hold up
to 16 modules.
FEATURES:
• Data re-clocking provides jitter reduction
Inputs:
o SMPTE 276M standard for AES audio on 75Ω coax
o EQ and re-clock provide extended cable length compensation (> 1500m)
o Transformer coupled 75Ω unbalanced input
Outputs:
o Eight 75Ω coax outputs
Card Edge LEDs:
o Module Health Status
o Error LED indication for input PLL out of lock, parity error or bi-phase coding error
o Re-clocker locked
AES Input
(SMPTE 276M)
AES Outputs
(SMPTE 276M)
Input
Coupling
Reclocker Rate
Equalizer AES
Reclocker
Module
Status
Control
Indicators
AES
Present
48 kHz 44 kHz 32 kHz
AES
Valid
VistaLINK
®
Interface
Passive Loop Thru
AES Output
Figure 1-1: 500DA-AESU-L Block Diagram Installed in 500FR-L-A-Frame
Frame Manual
500DA-AESU-L Unbalanced AES Audio Distribution Amplifier with Loop Thru
500DA-AESU-L - 2 Revision 1.0
2. INSTALLATION
The 500DA-AESU-L 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.
500DA-
AESU-L
Loop
Thru
Figure 2-1: 500DA-AESU-L Rear Panel Overlay
IN Input BNC connector for unbalanced AES audio signals compatible with the SMPTE 276M
standard.
OUT 1 to 8 There are eight BNC connectors with reclocked unbalanced AES, which are compatible
with the SMPTE 276M.
Frame Manual
500DA-AESU-L Unbalanced AES Audio Distribution Amplifier with Loop Thru
Revision 1.0 500DA-AESU-L - 3
3. SPECIFICATIONS
3.1. AES AUDIO INPUTS
Number of Inputs: 1
Standard: SMPTE 276M
Connectors: BNC per IEC 60169-8 Amendment 2
Coupling: Transformer
Input Level: 1V p-p
Equalization: Automatic to 1500m with Belden 1694A (or equivalent) @ 48kHz AES signal
Input Impedance: 75Ω
Return Loss: > 25dB 100kHz to 6MHz
Sampling Frequency: 32kHz, 44.1kHz, 48kHz and 96kHz
3.2. AES AUDIO OUTPUTS
Number of Outputs: 1 passive loop thru, 8 Unbalanced re-clocked AES
Connectors: BNC per IEC 60169-8 Amendment 2
Output Level: 1V p-p
Output Impedance: 75Ω
Return Loss: > 25dB 100kHz to 6MHz
3.3. ELECTRICAL
Voltage: +12V DC
Power: 5W
EMI/RFI: Complies with FCC Part 15 Class A EU EMC Directive
3.4. PHYSICAL
Number of slots: 1
Ordering Information:
500DA-AESU-L Unbalanced AES Distribution Amplifier (1x8) with Loop Thru
Enclosures:
500FR Compact High Density Distribution Frame
S501FR Standalone enclosure
Frame Manual
500DA-AESU-L Unbalanced AES Audio Distribution Amplifier with Loop Thru
500DA-AESU-L - 4 Revision 1.0
4. STATUS LEDS
The 500DA-AESU-L has seven LED Status indicators on the front card edge to show operational status of
the card at a glance. Figure 5-1 displays 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 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
500DA-AESU-L Unbalanced AES Audio Distribution Amplifier with Loop Thru
Revision 1.0 500DA-AESU-L - 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. INPUT TERMINATION JUMPER
The TERMINATION jumper J5, located at the rear of the module, determines whether the input signal will
be terminated or not.
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. The "T" connector is not required when installing
the 500DA-AESU-L module within a 500FR-L-A frame.
"WARNING: Make sure that the final destination of the signal is terminated.
Otherwise, reflections will occur affecting the signal throughout the cable.
Frame Manual
500DA-AESU-L Unbalanced AES Audio Distribution Amplifier with Loop Thru
500DA-AESU-L - 6 Revision 1.0
5.2. 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.
Indice
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