Belden GRASS VALLEY ADX-1901 Instruction Manual

ADX-1901
3G/HD/SD 8 Channel Analog Audio De-Embedder
Guide to Installation and Operation
M3005-9900-101
2015-04-29

GUIDE TO INSTALLATION AND OPERATION
ADX-1901
Electromagnetic Compatibility
This equipment has been tested for verification of compliance with FCC Part 15, Subpart B requirements for
Class A digital devices.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
This equipment has been tested and found to comply with the requirements of the EMC directive
2004/108/CE:
•EN 55022 Class A radiated and conducted emissions
•ENV 50204 Radiated EMF Immunity – RF 900 MHz Pulsed
•EN 61000-3-2 Harmonic current emission limits
•EN 61000-3-3 Voltage fluctuations and flicker limitations
•EN 61000-4-2 Electrostatic discharge immunity
•EN 61000-4-3 Radiated electromagnetic field immunity – radio frequencies
•EN 61000-4-4 Electrical fast transient immunity
•EN 61000-4-5 Surge transient immunity
•EN 61000-4-11 Voltage-dips, short-interruption and voltage variation immunity

GUIDE TO INSTALLATION AND OPERATION
ADX-1901
Table of Contents
1ADX-1901 3G/HD/SD 8 Channel Analog Audio De- Embedder..............................................1
1.1 Introduction ......................................................................................................................................... 1
1.2 Features.............................................................................................................................................. 1
1.3 Functional Block Diagram................................................................................................................... 2
1.4 Front Card-edge Interface................................................................................................................... 2
2Installation................................................................................................................................3
2.1 Installation of Rear Connector Panels ................................................................................................ 3
2.2 ADX-1901 Card Installation ................................................................................................................ 4
2.3 Installation of the Optical Interface (option) ........................................................................................ 4
2.4 Rear Panels and Connectors.............................................................................................................. 5
2.4.1 Images of Rear Panel Connectors......................................................................................... 5
2.4.2 Summary of rear panel connections...................................................................................... 5
2.4.3 Details of rear panel connections .......................................................................................... 6
3User Interface...........................................................................................................................8
3.1 Control options.................................................................................................................................... 8
3.2 Card-Edge Status LED ....................................................................................................................... 8
4Local control using the Densité frame control panel ............................................................9
4.1 Overview ............................................................................................................................................. 9
4.2 Menu for local control........................................................................................................................ 10
5Remote control using iControl..............................................................................................11
5.1 The iControl graphic interface window.............................................................................................. 11
5.2 Video Input/Output panel .................................................................................................................. 13
5.2.1 Video Input/Output panel (no fiber support)......................................................................... 14
5.2.2 Video Input/Output panel with fiber support......................................................................... 14
5.3 Metadata panel ................................................................................................................................. 15
5.3.1 TC-GPI tab........................................................................................................................... 15
5.3.2 Audio tab.............................................................................................................................. 16
5.4 Audio Inputs panel ............................................................................................................................ 17
5.4.1 CH 1-4, 5-8, 9-12, 13-16 tabs.............................................................................................. 17
5.4.2 The Status tab:..................................................................................................................... 18
5.5 Audio Output panel ........................................................................................................................... 18
5.5.1 1-2, 3-4, 5-6, 7-8 tabs .......................................................................................................... 18
5.5.2 Config tab............................................................................................................................. 19
5.6 Audio Programs panel ...................................................................................................................... 20
5.7 Downmix panel.................................................................................................................................. 21
5.8 Loudness Panel ................................................................................................................................ 22
5.8.1 Loudness | Config panel ...................................................................................................... 22
5.8.2 Loudness | PGM panel ........................................................................................................ 23
5.9 Alarms panel..................................................................................................................................... 24
5.9.1 Alarms – Video panel........................................................................................................... 24
5.9.2 Alarms – Metadata panel..................................................................................................... 25
5.9.3 Alarms – Audio panel........................................................................................................... 26
5.10 Monitoring panel................................................................................................................................ 29
5.10.1 RALM Connections tab........................................................................................................ 29

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ADX-1901
5.10.2 Meter Ballistics Config tab....................................................................................................29
5.11 Test panel..........................................................................................................................................30
5.12 Factory/Presets panel........................................................................................................................31
5.13 Alarm Config panel............................................................................................................................33
5.14 Info panel...........................................................................................................................................36
6Specifications ........................................................................................................................38
7Grass Valley Technical Support ...........................................................................................40
ANNEX 1 – ADX-1901 Local User Interface................................................................................41
ANNEX 2 – Installing the Optical Interface ................................................................................42
ANNEX 3 - Loudness Logging and the Miranda Audio Loudness Analyzer............................44

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1 ADX-1901 3G/HD/SD 8 Channel Analog Audio De- Embedder
1.1 Introduction
The ADX-1901 is an advanced, high quality 24-bit 48 KHz analog audio de-embedder designed to extract eight
analog audio signals from a 3G/HD/SD video signal. The ADX-1901 can process the 8 audio de-embedded channels
with functions including level, channel shuffling and mixing.
The loudness measurement features allows the measurement and logging of up to 8 audio programs with iControl
Loudness Monitoring software to analyze and report compliance with respect to various loudness legislation around
the world. Furthermore, a delay of up to 2.7 seconds can be programmed independently per de-embedded audio
channel to provide lip sync correction.
The ADX-1901 can de-embed Ancillary Time Code (ATC) in 3Gbps/HD, or DVITC in SD, to generate Linear Time
Code (LTC). Up to two GPIO can be generated by extracting GPI events from the Time Code user bits in transport
applications. Audio Metadata extraction from the VANC can be streamed to an external RS-422 output.
The ADX-1901 is designed for the Densité 2 frame, but will be compatible with the Densité 3 frame with the metal
extender. Multiple rear connector panels are available according to your application needs and the chassis type used.
A fiber input/output cartridge is offered as an option on some rear modules. Once the cartridge is installed, the input or
outputs are selectable through the control interface.
1.2 Features
Audio
•8 analog audio outputs
•Audio silence output on loss of video input.
•Full audio shuffling and mixing on a channel output basis
•Individually adjustable audio output levels
•Audio 5.1 surround downmix to Lo/Ro
•Audio delay adjustments of up to 2.7 seconds to compensate for lip sync issues
•Built in test generator (audio).
•Monitoring and reporting of audio output Max/Min Level, Silence and Phase.
•Loudness measurement of up to 8 audio programs and logging with iControl Loudness Monitoring software
•Loudness compliant to EBU R128, ATSC A/85:2013 and ARIB TR-B32 (ITU-R BS.1770-3))
Video
•3Gbps/HD/SD input with automatic equalization
•Supports 3Gbps level A (mapping 1) and level B
•Automatic detection of video input format
•Optional optical fiber SFP cartridge
•Black Detection monitoring
Metadata
•Linear Time Code (LTC) output translated from DVITC (SD) or ATC (3Gbps/HD)
•2 GPI data output signals reconstructed from ANC TC user bits.
•RS-422 serial data output to carry Audio Metadata (SMPTE 2020-A) from the VANC.

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1.3 Functional Block Diagram
Figure 1.1 ADX-1901 Functional Block Diagram
1.4 Front Card-edge Interface
The front card-edge of the ADX-1901 incorporates
two elements:
•Status LED (see section 3.2)
•Select Button (see section 4)
Figure 1.2Front card-edge layout
Select
Status
ADX-1901
Status LED
Select Button

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2 Installation
2.1 Installation of Rear Connector Panels
Grass Valley Densité-series cards are each associated with a rear connector panel, which must be installed in the
Densité frame before the card can be inserted.
The ADX-1901 card is designed to fit into Grass Valley’s Densité-2 frame. Two different rear connector panels are
available for this configuration. Due to connector space requirements, a double-slot-width rear panel is necessary:
•ADX-1901-DRP Double-slot-width panel for Densité-2
•ADX-1901-DRP-F Double-slot-width panel for Densité-2 with fiber I/O
With a factory-installed adapter mounted on the ADX-1901 card, it can be installed in a Densité-3 frame. In this case,
only a single-slot-width panel is required. Two rear panels are available:
•ADX-1901-3SRP Single-slot-width panel for Densité-3
•ADX-1901-3SRP-F Single-slot-width panel for Densité-3 with fiber I/O
See section 2.4 for details of the signal connections available on each of these panel types.
All cards and rear panels can be installed with the frame power on. The card has connectors which plug into a mid-
frame mother board for distribution of power and for connection to the controller card, and a second connector which
plugs directly into the rear connector panel for input and output.
The rear connector panel must be installed with the card out of the frame.
•To remove an existing card from the slot, tilt up the swivel handle on the front of the card to lever the
connectors apart, then use the handle to pull the card straight out of the slot.
Figure 2.1 Densité-3 frame – rear panel installation

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To install the connector panel:
Note – the procedure is the same for both Densité-2 and Densité-3 frames.
1. If a card is installed in the slot whose rear panel is being changed, remove it as described above.
2. Remove the existing panel (either blank or belonging to an existing card that is being changed) by releasing the
captive screw(s) at the bottom.
3. Position the new panel and secure it in place with the captive screw(s) at the bottom.
2.2 ADX-1901 Card Installation
Note – The card itself (ADX-1901) is designed to fit the Densité-2 frame. If it was ordered for the Densité-3 frame
(ADX-1901-3RU), it will be delivered with an installed adapter that allows it to fit into the taller frame. The
adapter can be ordered separately and user-installed if required.
Once a matching rear connector panel is in place, install the ADX-1901 card as follows:
1. Open the front panel of the frame.
2. Slide the ADX-1901 card into the slot and push gently on the handle to seat the connectors.
When using the double-slot-width rear panel in a Densité-2 frame, the card should be inserted into the right-
most of the two slots. Inserting the card into the wrong slot will not damage the card, and will be flagged by the
on-card status LED flashing red to indicate that there is no connection to the rear panel.
3. Close the front panel of the frame.
2.3 Installation of the Optical Interface (option)
Refer to ANNEX 2.

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2.4 Rear Panels and Connectors
2.4.1 Images of Rear Panel Connectors
The four available rear panels are shown in the figure.
Details of the inputs and outputs are described below.
2.4.2 Summary of rear panel connections
ADX-1901-3SRP
ADX-1901-3SRP-F
ADX-1901-DRP
ADX-1901-DRP-F
Single-slot-width panel
♦
♦
Double-slot-width panel
♦
♦
CONNECTORS
3G/HD/SD IN 1 1 1* 1
3G/HD/SD OUT 2 2 2* 2
Analog Audio OUT on D-SUB 8 8 8 8
2 GPI OUT, LTC OUT & RS-422 OUT on RJ45 yes yes yes yes
Fiber I/O module yes yes
* DIN1.0/2.3 connectors on ADX-1901-3SRP-F panel; BNC connectors on all other panels.

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2.4.3 Details of rear panel connections
3G/HD/SD IN – Serial digital 3G/HD/SD input
Connect a serial digital video signal, conforming to the SMPTE 425M standard for 3G input signals, SMPTE 292M
standard for HD input signals or SMPTE 259M standard for SD input signals, to the connector labeled 3G/HD/SD IN.
The ADX-1901 will automatically switch to the detected line/frame rate format.
3G/HD/SD OUT – Serial digital video outputs
The ADX-1901 provides two 3G/HD/SD SDI video outputs on the connectors labeled 3G/HD/SD OUT 1 and 2. The
SDI video signal conforms to the input standard. The same signal is carried on both outputs.
ANALOG AUDIO OUT – Analog audio outputs (8)
The eight analog audio outputs are balanced outputs, via a 26-pin D-SUB female connector. Pinout for the connector
is shown in the table.
Fiber I/O – Fiber-optic inputs and outputs
Rear panels whose part number ends in –F incorporate a fiber optic interface. The interface consists of two parts:
•A socket on the rear panel into which an SFP interface module is plugged
•An SFP (Small Form-factor Pluggable) module into which the optical fibers are plugged, and which incorporates
the optical/electrical interface
The optical fibers must be terminated in an LC/PC connector.
Signal Pin #
AUDIO OUT 1 (Hi) 1
AUDIO OUT 1 (Lo) 10
AUDIO OUT 2 (Hi) 2
AUDIO OUT 2 (Lo) 11
AUDIO OUT 3 (Hi) 3
AUDIO OUT 3 (Lo) 12
AUDIO OUT 4 (Hi) 4
AUDIO OUT 4 (Lo) 13
AUDIO OUT 5 (Hi) 5
AUDIO OUT 5 (Lo) 14
AUDIO OUT 6 (Hi) 6
AUDIO OUT 6 (Lo) 15
AUDIO OUT 7 (Hi) 7
AUDIO OUT 7 (Lo) 16
AUDIO OUT 8 (Hi) 8
AUDIO OUT 8 (Lo) 17
GND 9, 18 to 26

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See ANNEX 2 for instructions on installing and removing the SFP interface module, and for plugging and unplugging
the LC-terminated fibers.
The SFP modules supported by the ADX-1901 are:
SFP Modules
Description
SFP-T-S13-LC Single fiber Tx (output) module at 1310 nm with LC/PC connector
SFP-TT-S13S13-LC Dual fiber Tx (output) module at 1310 nm with LC/PC connector
SFP-RT-S13-LC Dual fiber Rx (input) and Tx (output) module at 1310 nm with LC/PC connectors
SFP-R-LC Single fiber Rx (input) module with LC/PC connector
SFP-RT-W13-LC Single fiber Rx/Tx module at 1310 nm with WDM, LC/PC connector
SFP-RT-W15-LC Single fiber Rx/Tx module at 1550 nm with WDM, LC/PC connector
RS-422 / GPI / LTC – Metadata Output, GPI Outputs and Timecode Output
RS-422, GPI and LTC signals are carried on an RJ-45 connector, with the pinout as shown in the table:
Note: A GPI output is open when inactive and connected to ground when active.
Function Pin #
NC 1
NC 2
RS422-TX-1 3
LTC OUTPUT 4
GPIO USER2 OUTPUT 5
RS422-TX-0 6
GPIO USER1 OUTPUT 7
GND 8

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3 User Interface
3.1 Control options
The ADX-1901 can be controlled in three different ways:
•The local control panel and its push-buttons can be used to move through a menu of parameters and to adjust
parameter values (see section 4).
•Grass Valley’s iControl system can be used to access the card’s operating parameters from a remote computer,
using a convenient graphical user interface (GUI) (see section 5).
•Grass Valley’s RCP-200 panel (check for availability).
3.2 Card-Edge Status LED
The status monitor LED is located on the front card-edge of the ADX-1901, and is visible through the front access door
of the DENSITÉ frame. This multi-color LED indicates the status of the ADX-1901 by color, and by flashing/steady
illumination.
The chart shows how the various error conditions that can be flagged on the ADX-1901 affect the LED status.
•If a cell is gray, the error condition cannot cause the LED to assume that status
•If more than one LED status is possible for a particular error condition, the status is configurable.
See section 5.16 for details.
•The factory default status is shown by a 
The LED will always show the most
severe detected error status that it is
configured to display, and in the chart
error severity increases from left to
right, with green representing no
error/disabled, and flashing red the
most severe error.
If the LED is Flashing Yellow, it
means that the card is selected for
local control using the Densité frame’s
control panel. See section 4.1 for
details.
Error Condition
LED Status
Green Yellow Red
Flashing
Red
Hardware failure 
No Rear 
SFP – Absence 
SFP – Type mismatch 
SFP – Temperature 1 
SFP – Optical Power 1 
SFP – Voltage 1 
SFP – Temperature 2 
SFP – Optical Power 2 
SFP – Voltage 2 
Video – Input video error 
Video – input Black Detect 
Video – Audio MTDT absent 
Metadata – SMPTE 2020 
Metadata – DVITC.ATC 
Audio – TP Overload CH1
Audio – TP Overload CH8



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Audio – Silence Detection CH1
Audio – Silence Detection CH8


Audio – min loudness PGM1
Audio – min loudness PGM8


Audio – max loudness PGM1
Audio – max loudness PGM8


Audio – phase error CH1-2
Audio – phase error CH7-8


Audio – mute CH1
Audio – mute CH8


Audio -Test Tone 
4 Local control using the Densité frame control panel
4.1 Overview
Push the SELECT button on the ADX-1901 card edge
(see section 1.4) to assign the local control panel to
operate the ADX-1901. Use the control panel buttons
to navigate through the menu, as described below.
All of the cards installed in a Densité frame are
connected to the frame’s controller card, which handles
all interaction between the cards and the outside world.
There are no operating controls located on the cards
themselves. The controller supports remote operation
via its Ethernet ports, and local operation using its
integrated control panel.
The local control panel is fastened to the front of the
CPU-ETH2 controller card, and when installed is located in the front center of the frame, positioned in front of the
power supplies. The panel consists of a display unit capable of displaying two lines of text, each 16 characters in
length, and five pushbuttons.
The panel is assigned to operate any card in the frame by pushing the SELECT button on the front edge of that card.
•Pushing the CONTROLLER button on the control panel selects the Controller card itself.
•The STATUS LED on the selected card flashes yellow.
The local control panel displays a menu that can be navigated using the four pushbuttons located beside the display.
The functionality of the pushbuttons is as follows:
Figure
4.1 Densité Frame local control panel

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[+] [–] Used for menu navigation and value modification
[SELECT] Gives access to the next menu level. When a parameter value is shown, pushing this button once
enables modification of the value using the [+] and [–] buttons; a second push confirms the new value.
[ESC] Cancels the effect of parameter value changes that have not been confirmed; pushing [ESC] causes the
parameter to revert to its former value.
Pushing [ESC] moves the user back up to the previous menu level. At the main menu, [ESC] does not
exit the menu system. To exit, re-push the [SELECT] button for the card being controlled.
If no controls are operated for 30 seconds, the controller reverts to its normal standby status, and the selected card’s
STATUS LED reverts to its normal operating mode.
4.2 Menu for local control
The ADX-1901 has operating parameters which may be adjusted locally at the controller card interface.
•Press the SELECT button on the ADX-1901 front card edge to assign the Densité frame’s local control panel
to the ADX-1901
•Use the keys on the local control panel to step through the displayed menu to configure and adjust the ADX-
1901.
The complete menu structure is shown in ANNEX 1 to this document, beginning on page 41.

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5 Remote control using iControl
The operation of the ADX-1901 may be controlled using Grass Valley’s iControl system.
•This manual describes the control panels associated with the ADX-1901 and their use.
•Please consult the iControl User’s Guide for information about setting up and operating iControl.
In iControl Navigator or iControl Websites, double-click on the ADX-1901 icon to open the control panel.
5.1 The iControl graphic interface window
The basic window structure for the ADX-1901 is shown in figure 5.1. The window identification line gives the card type
(ADX-1901) and the slot number where the card is installed in its Densité frame.
There are four main sections in the window itself, as identified in the figure:
Section 1. The top section displays five icons on the left. These icons report different statuses such as card
communication status, input signal and reference signal format and statuses. In some instances, they relate to
conditions defined through parameters settings.
Icon # 1 2 3 4 5
Move the mouse over an icon and a status message appears below the icon providing additional information.
1
2
3
4
Figure
5-1 ADX-1901 iControl graphic interface window

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If there is an error, the error status message appears in the message area without mouse-over.
•If there are multiple errors, the error messages cycle so all can be seen
•The icon whose status or error message is shown is highlighted with a mauve background
The table below describes the various status icons that can appear, and how they are to be interpreted.
•In cases where there is more than one possible interpretation, read the error message in the iControl window to
see which applies.
Table –iControl Status Icon interpretation
Icon #1 – Manual Card Configuration
(green)
Remote card control activated. The iControl interface can be used to operate the card
(yellow)
Local card control active, The card is being controlled using the Densité frame control
panel, as described in section 4. Any changes made using the iControl interface will have
no effect on the card.
Icon #2 – Input status
(green)
Signal detected and valid.
•Beneath the icon, the format will be indicated as 3G, HD or SD, and the specific
format details will be listed if the cursor is moved over the icon.
(red)
No rear
Video not locked
(gray)
Video input alarm disabled
Icon #3 – Operation Mode
(green)
Operation mode: process – normal processing of the input signal
(yellow)
Operation mode: TEST – audio test tones enabled (see 5.11)

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Icon #4 – Analog Audio Input / Output Status
(green)
Audio OK
(yellow)
Yellow alarm condition detected on 1 or more channels or programs.
(red)
Red alarm condition detected on 1 or more channels or programs.
Icon #5 – Health Monitoring
(green)
Hardware OK
(red)
Hardware Health Monitoring (Hardware fault detected, SFP errors).
If this icon appears flashing red, return the card to Grass Valley and specify the error code.
Section 2. The left portion of the window contains all the parameter groups, which become highlighted when they are
selected; the main panel (4) then displays the group’s set of parameters. Each of the groups is described in detail
below.
Section 3. The lower left corner of the window identifies the Preset currently in use or “Custom” if none is applicable.
Section 4. The main panel contains all the parameters specific to the group selected. It may contain several tabs to
help manage the different parameters.
Each of the panels associated with the groups accessed from the buttons in Section 2, and shown in Section 4, is
described individually in the following sections.
5.2 Video Input/Output panel
This panel allows input selection and determination of the output in the event of loss of input signal.
The panel appearance is different for installations supporting a fiber input (i.e. using a –F rear panel) and those
without fiber support.

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5.2.1 Video Input/Output panel (no fiber support)
When the ADX-1901 is installed with a rear panel that has no fiber
connectivity, the electrical input (BNC) is automatically selected, and
this panel has no active functions.
The current input format, or the last valid input format, is displayed in
the Output Status area.
5.2.2 Video Input/Output panel with fiber support
With fiber support, the following sections are added or activated:
Input Select: use the pulldown list to select between the copper input
(BNC) and the fiber optic input (only when a receiver SFP module is
installed).
Fiber Output Config: This control is only available when a transmitter
SFP module is installed. The fiber Out 2 selector is only available
when a dual-transmitter SFP is installed.
SFP Mismatch: Illuminates Yellow if the installed SFP module is not
supported by the ADX-1901 card.
SFP Info: Displays information about the type and status of the
installed SFP module. The two columns showing status data are
labeled to reflect the type of SFP module:
•Transceiver SFP: RX-A TX-B
•Single transmitter SFP: TX-A (N/A)
•Dual transmitter SFP: TX-A TX-B
The following identifying information about the SFP module is
displayed:
•Vendor name
•Type
•Part Number
•Serial Number
•Date Code
Figure
5-3 Video Input/Output panel (with fiber)
Figure
5-2 Video Input/Output panel (no fiber)

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Additionally, some parameters are measured and their values displayed here:
•Temperature
•Voltage (V)
•Optical Power (dBm)
•Wavelength (nm)
5.3 Metadata panel
This panel contains two tabs that give access to metadata processing on the ADX-1901 card:
•TC-GPI
•AUDIO
5.3.1 TC-GPI tab
This tab controls timecode and GPI de-embedding from the input
SDI data stream.
Timecode presence:
The Status icons indicate the presence of different time code
formats – those that do not apply to the current input format are
grayed-out:
•DVITC (SD) embedded in the SDI input on the same line
that has been selected in this panel for de-embedding
•ATC-LTC (3G/HD) embedded in the SDI input
•ATC-VITC (3G/HD) embedded in the SDI input
The Timecode De-embedding section provides resources to
configure the de-embedding process.
•Delay: Adjust the timecode delay value to compensate
for a 1-to-50 frame offset between the video and the
LTC.
Value: [0, 1, 2, …, 50 frames]
•Extraction:Use the pulldown to specify the source of
extracted time code:
[OFF, DVITC, ATC-VITC, ATC-LTC, AUTO]
AUTO mode functions as follows:
o3G/HD signal – the extracted signal will be VITC or LTC if either is present, and LTC if both are present.
oSD signal – the extracted signal will be DVITC.
.
•SD Detection Line: Use the pulldown to specify the line number to extract a time code (SD only).
[AUTO, 10 to 20 (SD525), 7 to 22 (SD625)]
In AUTO mode the ADX-1901 extracts the first timecode encountered in the vertical blanking interval. For
example, if timecode is present on lines 12 and 14, the line 12 timecode will be extracted.
Figure
5-4 Metadata Panel – TC-GPI tab

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GPI Status: The GPI Content icon shows the presence of GPI information in the embedded timecode at the SDI input
The two GPI status icons show the status of the two GPI outputs on the rear-panel RJ45 connector.
GPI De-embedding: Set up the de-embedding of GPI data from the input data streams.
•SD Extract Line: Use the pulldown to specify the line number from which to extract a time code (SD only).
[AUTO, 10 to 20 (SD525), 7 to 22 (SD625)]
In AUTO mode the ADX-1901 extracts the GPI from the first timecode encountered in the vertical blanking
interval. For example, if timecode is present on lines 12 and 14, the line 12 timecode will be extracted.
•GPI Latch Mode: When no valid time code with embedded GPI data has been detected, the user has the
option of releasing the GPI outputs (Latch mode OFF), or holding the last valid de-embedded values (Latch
Mode ON).
For each of the two GPIs:
•Mode: Use the pulldown list to select the operating mode for this GPI:
oOFF – the GPI output state is inactive.
oDe-embed – the GPI data located on a pre-defined user bit within timecode in the incoming SDI signal is
de-embedded.
When De-embed is selected, use the Bit pulldown list to set which of the user bits (1-16) will be
selected to de-embed the GPI data. The default is: GPI 1 on bit 1; GPI 2 on bit 2.
5.3.2 Audio tab
This tab provides resources to configure the input and output
selections and processing of audio metadata for the ADX-1901
card.
VANC Metadata Extractor
The card can extract an audio metadata stream from the VANC
interval.
•The icon flags the presence of the audio metadata
•Extraction is controlled by the SDID selected by the
pulldown:
(range = 01 to 09).
Delay
Use the two sliders – coarse (ms), and fine (samples) – to adjust
the delay of the extracted audio metadata by up to 2.7 seconds
to account for video/audio timing differences.
Output Serial Stream
The de-embedded metadata can be output as an RS-422
datastream on the RJ45 rear panel connector. Select the RS-
422 status as OFF or Metadata using the pulldown.
The SDID is used to specify the relationship between the VANC
metadata stream and the first channel of its associated audio program.
Figure
5-5 Metadata – Audio tab