Evertz Exponent 500DA-AESU Manuel utilisateur

Frame Manual

500DA-AESU Unbalanced AES Audio Distribution Amplifier

Revision 1.1

TABLE OF CONTENTS

1. OVERVIEW.......................................................................................................................................... 1

2. INSTALLATION................................................................................................................................... 2

3. SPECIFICATIONS............................................................................................................................... 3

3.1. AES AUDIO INPUTS .................................................................................................................. 3

3.2. AES AUDIO OUTUTS ................................................................................................................ 3

3.3. ELECTRICAL ............................................................................................................................. 3

3.4. PHYSICAL.................................................................................................................................. 3

4. STATUS LEDS .................................................................................................................................... 3

5. JUMPERS AND USER ADJUSTMENTS............................................................................................ 4

5.1. INPUT TERMINATION JUMPER ............................................................................................... 5

5.2. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED

BY THE GLOBAL FRAME STATUS.......................................................................................... 5

Figures

Figure 1: 500DA-AESU Block Diagram.................................................................................................................1

Figure 2: 500DA-AESU Rear Panel Overlay.........................................................................................................2

Figure 3: LED and Jumper Locations....................................................................................................................4

Frame Manual

500DA-AESU Unbalanced AES Audio Distribution Amplifier

Revision 1.1

REVISION HISTORY

REVISION DESCRIPTION DATE

1.0 Original Version Oct 02

1.1 Updated Block Diagram, LED and Jumper information Mar 03

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 Unbalanced AES Audio Distribution Amplifier

Revision 1.1 500DA-AESU-1

1. OVERVIEW

The 500DA-AESU provides an economical method of distribution for your AES digital audio signals. The

DA’s feature one auto-equalized input with nine re-clocked outputs.

The 500DA-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

•9 reclocked outputs provides jitter reduction

•Automatic equalization provides extended cable length capabilities

•High impedance or 75 ohm termination on input (jumper selectable)

•Card edge indicators for AES present, reclocker rate, and AES validity bit

•Tally output of input error conditions

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

Ω

AES

Valid

Figure 1: 500DA-AESU Block Diagram

Frame Manual

500DA-AESU Unbalanced AES Audio Distribution Amplifier

500DA-AESU-2 Revision 1.1

2. INSTALLATION

The 500DA-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 the

500FR chapter section 3.

Figure 2: 500DA-AESU Rear Panel Overlay

IN Input BNC connector for unbalanced AES audio signals compatible with the SMPTE 276M

standard.

OUT 1 to 9 There are nine BNC connectors with reclocked unbalanced AES, compatible with the

SMPTE 276M.

Frame Manual

500DA-AESU Unbalanced AES Audio Distribution Amplifier

Revision 1.1 500DA-AESU-3

3. SPECIFICATIONS

3.1. AES AUDIO INPUTS

Number of Inputs: 1

Standard: SMPTE 276M, single ended AES

Connectors: BNC per IEC 169-8

Coupling: Transformer

Signal Level: 1V p-p ±0.1V

Equalization: Automatic to 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 OUTUTS

Number of Outputs: 9 reclocked

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: 5 Watts.

3.4. PHYSICAL

Number of slots: 1

4. STATUS LEDS

The 500DA-AESU has seven LED Status indicators on the front card edge to show operational status of

the card at a glance. Figure 3 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.

Frame Manual

500DA-AESU Unbalanced AES Audio Distribution Amplifier

500DA-AESU-4 Revision 1.1

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.

5. JUMPERS AND USER ADJUSTMENTS

+12V GND

MODULE STATUS

(A)500DA-AES-UB

AES PRESENT

48 KHZ

44 KHZ

32 KHZ

AES VBIT

FRAME STATUS

OFF

TERMINATION

HI-ZTERM

Figure 3: LED and Jumper Locations

Frame Manual

500DA-AESU Unbalanced AES Audio Distribution Amplifier

Revision 1.1 500DA-AESU-5

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.

!WARNING: Make sure that the final destination of the signal is terminated.

Otherwise, reflections will occur affecting the signal throughout the cable.

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.

Frame Manual

500DA-AESU Unbalanced AES Audio Distribution Amplifier

500DA-AESU-6 Revision 1.1

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