Belden GRASS VALLEY AMX-1901 Instruction Manual

DENSITÉ series
AMX-1901
3G/HD/SD 8 Analog Audio
& Metadata Embedder
Guide to Installation and Operation
M3004-9900-101
27 November 2014
3499 Douglas-B.-Floreani
St-Laurent, Québec, Canada H4S 2C6
Tel. [phone]
Fax. [phone]
www.grassvalley.com
© 2014 Grass Valley A Belden Brand

GUIDE TO INSTALLATION AND OPERATION
AMX-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
AMX-1901
Table of Contents
1AMX-1901 3Gbps/HD/SD 8 Analog Audio & Metadata 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 AMX-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.................................................................................................................. 14
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 AFD tab................................................................................................................................ 16
5.3.3 Audio tab.............................................................................................................................. 19
5.4 Audio Inputs panel ............................................................................................................................ 21
5.4.1 Analog 1-4, 5-8 tabs............................................................................................................. 21
5.4.2 The Config tab: .................................................................................................................... 21
5.5 Audio Output panel ........................................................................................................................... 22
5.5.1 CH 1-2, CH 3-4, … CH 7-8 tabs .......................................................................................... 22
5.5.2 Config tab............................................................................................................................. 23
5.6 Dynamic Processing panel ............................................................................................................... 23
5.7 Audio Programs panel ...................................................................................................................... 26
5.8 ALC panel ......................................................................................................................................... 27
5.8.1 Config tab............................................................................................................................. 28
5.8.2 PGM1-8 tabs........................................................................................................................ 28
5.9 Loudness Panel ................................................................................................................................ 30
5.9.1 Loudness | Config panel ...................................................................................................... 31
5.9.2 Loudness | PGM panel ........................................................................................................ 31
5.10 Alarms panel..................................................................................................................................... 33
5.10.1 Alarms – Video panel........................................................................................................... 33

GUIDE TO INSTALLATION AND OPERATION
AMX-1901
5.10.2 Alarms – Metadata panel .....................................................................................................34
5.10.3 Alarms – Audio panel ...........................................................................................................36
5.11 Reference panel................................................................................................................................39
5.12 Monitoring panel................................................................................................................................39
5.12.1 RALM Connections tab.........................................................................................................39
5.12.2 Meter Ballistics Config tab....................................................................................................40
5.13 Test panel..........................................................................................................................................41
5.14 Factory/Presets panel........................................................................................................................42
5.14.1 Factory/Presets tab ..............................................................................................................42
5.15 Options panel ....................................................................................................................................44
5.15.1 Dynamic Processing option:.................................................................................................45
5.15.2 ALC option............................................................................................................................45
5.16 Alarm Config panel............................................................................................................................46
5.17 Info panel...........................................................................................................................................49
6Specifications ........................................................................................................................51
7Grass Valley Technical Support ...........................................................................................53
ANNEX 1 – AMX-1901 Local User Interface ...............................................................................54
ANNEX 2 – Installing the Optical Interface ................................................................................55
ANNEX 3 – AFD Flags .................................................................................................................57
ANNEX 4 - Loudness Logging and the Miranda Audio Loudness Analyzer............................59

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AMX-1901 | 1
1 AMX-1901 3Gbps/HD/SD 8 Analog Audio & Metadata Embedder
1.1 Introduction
The AMX-1901 is an advanced, high quality 24-bit 48 kHz analog audio embedder designed to insert up to eight
analog audio signals into a 3G/HD/SD video signal. The AMX-1901 can process the eight audio input channels with
functions including level, channel shuffling and mixing.
Options include Automatic Loudness Control and dynamic processing (limiter, compressor, and expander). The
loudness measurement features allows the measurement and logging of up to eight 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 2.7s can be programmed independently per audio input channel.
In the absence of an input video signal, an internally generated black or color bar signal is used, thus sustaining audio
embedding even with a loss of input.
The AMX-1901 can embed longitudinal timecode (LTC) as ancillary timecode (ATC) in 3G/HD and DVITC in SD. Up
to two GPI inputs can be used to embed GPI events to the timecode user bits in transport applications. Audio
metadata insertion in the VANC is possible from an embedded VANC stream or an external RS-422 link.
A fiber input/output SFP cartridge is offered as an option on some rear modules. Once the cartridge is installed, the
inputs or outputs are selectable through the control interface.
1.2 Features
Audio
•8 analog audio inputs with input shuffling
•Individually adjustable input level
•Audio delay adjustments of up to 2.7s to compensate for lip sync issues
•Audio dynamic processor option (compressor/limiter/expander)
•Optional 8 channels, up to 8 programs Automatic Loudness Control with Wideband processing
•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)
•Built-in test pattern generator (audio + video)
•Monitoring and reporting of audio input Overload, Max/Min Loudness, Silence and Phase
Video
•3G/HD/SD input
•Supports 3G level A (mapping 1) and level B Dual Link
•Internal black or color bar generator in case of input signal absence or loss
•Flexible HD/SD/URS reference input, used only when input signal is absent
•Optional optical fiber SFP cartridge
•Black Detection monitoring
Metadata
•AFD (SMPTE-2016), VLI (RP-186) and WSS insertion
•Longitudinal timecode (LTC input) embedding into DVITC (SD) or ATC (3G/HD)
•Audio metadata insertion (SMPTE 2020-A) from RS-422 serial data input
•2 GPI inputs that can be inserted in the timecode user bits

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

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2 Installation
2.1 Installation of Rear Connector Panels
Miranda 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 AMX-1901 card is designed to fit into Miranda’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:
•AMX-1901-DRP Double-slot-width panel for Densité-2
•AMX-1901-DRP-F Double-slot-width panel for Densité-2 with fiber I/O
With a factory-installed adapter mounted on the AMX-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:
•AMX-1901-3SRP Single-slot-width panel for Densité-3
•AMX-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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4| AMX-1901
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 AMX-1901 Card Installation
Note – The card itself (AMX-1901) is designed to fit the Densité-2 frame. If it was ordered for the Densité-3 frame
(AMX-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 AMX-1901 card as follows:
1. Open the front panel of the frame.
2. Slide the AMX-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
AMX-1901-3SRP
AMX-1901-3SRP-F
AMX-1901-DRP
AMX-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
REF IN 1 1 1* 1
Analog Audio IN on D-SUB 8 8 8 8
2 GPI IN, LTC IN and RS-422 IN on RJ45 yes yes yes yes
Fiber I/O module yes yes
* DIN1.0/2.3 connectors on AMX-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 BNC labeled 3G/HD/SD IN. The
AMX-1901 will automatically switch to the detected line/frame rate format.
3G/HD/SD OUT – Serial digital video outputs
The AMX-1901 provides two 3G/HD/SD SDI video outputs on BNC connectors, labeled 3G/HD/SD OUT 1 and 2. The
SDI video signal conforms to the input standard. When there is no signal connected to the input, the selected recovery
signal is used. The same signal is carried on both outputs.
REF IN – External reference input
Connect either Black Burst per SMPTE 170M / SMPTE 318M / ITU 624-4, or Tri-Level sync per SMPTE 274M /
SMPTE 296M.
ANALOG AUDIO IN – Analog audio inputs (8)
The eight analog audio inputs are high-impedance balanced inputs, via a 26-pin D-SUB 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:
Signal Pin #
AUDIO IN 1 (Hi) 1
AUDIO IN 1 (Lo) 10
AUDIO IN 2 (Hi) 2
AUDIO IN 2 (Lo) 11
AUDIO IN 3 (Hi) 3
AUDIO IN 3 (Lo) 12
AUDIO IN 4 (Hi) 4
AUDIO IN 4 (Lo) 13
AUDIO IN 5 (Hi) 5
AUDIO IN 5 (Lo) 14
AUDIO IN 6 (Hi) 6
AUDIO IN 6 (Lo) 15
AUDIO IN 7 (Hi) 7
AUDIO IN 7 (Lo) 16
AUDIO IN 8 (Hi) 8
AUDIO IN 8 (Lo) 17
GND 9, 18 to 26

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•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.
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 AMX-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 Input, GPI Inputs and Timecode Input
RS-422, GPI and LTC signals are carried on an RJ-45 connector, with the pinout as shown in the table:
Note: A GPI is inactive when its input is left unconnected, and active when
connected to ground.
Function Pin #
RS422-RX-1 1
RS422-RX-0 2
NC 3
LTC INPUT 4
GPIO USER2 INPUT
5
NC 6
GPIO USER1 INPUT 7
GND
8

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8| AMX-1901
3 User Interface
3.1 Control options
The AMX-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).
•Miranda’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).
•Miranda’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 AMX-1901, and is visible through the front access
door of the DENSITÉ frame. This multi-color LED indicates the status of the AMX-1901 by color, and by
flashing/steady illumination.
The chart shows how the various error conditions that can be flagged on the AMX-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 
Reference missing 
SFP – missing 
SFP – mismatch 
SFP – temperature 
SFP – voltage 
SFP – input power 
SFP – out A power 
SFP – out B power 
Video – no lock 
Video – black 
Video – DB MTDT absent 
Ext – DB MTDT absent 
AFD absent 
ATC absent 
LTC absent 
Audio – clip 1
Audio – clip 8



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Audio – group absent 1
Audio – group absent 4


Audio – overload 1
Audio – overload 8


Audio – NSD 1
Audio – NSD 8


Audio – min loudness 1
Audio – min loudness 8


Audio – max loudness 1
Audio – max loudness 8


Audio – phase error 1
Audio – phase error 4


Audio – mute 1
Audio – mute 8


Audio -tone 
4 Local control using the Densité frame control panel
4.1 Overview
Push the SELECT button on the AMX-1901 card edge
(see section 1.4) to assign the local control panel to
operate the AMX-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.
Figure
4.1 Densité Frame local control panel

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10 | AMX-1901
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:
[+] [–] 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 AMX-1901 has operating parameters which may be adjusted locally at the controller card interface.
•Press the SELECT button on the AMX-1901 front card edge to assign the Densité frame’s local control panel
to the AMX-1901
•Use the keys on the local control panel to step through the displayed menu to configure and adjust the AMX-
1901.
The complete menu structure is shown in ANNEX 1 to this document, beginning on page 54.

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5 Remote control using iControl
The operation of the AMX-1901 may be controlled using Miranda’s iControl system.
•This manual describes the control panels associated with the AMX-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 AMX-1901 icon to open the control panel.
5.1 The iControl graphic interface window
The basic window structure for the AMX-1901 is shown in figure 5.1. The window identification line gives the card type
(AMX-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 six 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 6
Move the mouse over an icon and a status message appears below the icon providing additional information.
1
2
3
4
Figure
5.1 AMX-1901 iControl graphic interface window

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12 | AMX-1901
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 – color bar and audio test tones enabled (see section 5.16)

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Icon #4 – Analog Audio Input / Output Status
(green)
Audio OK
(yellow)
Yellow alarm condition detected on 1 or more channels
(red)
Red alarm condition detected on 1 or more channels
Icon #5 – Reference
(green)
Reference OK. Mouse over to see the source of the reference, and its format, e.g.
External, NTSC
(red)
Video Input signal is invalid, and external and URS references are missing.
(gray)
A valid video input signal is present, the Reference signal is not used – displays recovery
format.
Icon #6 – Operation Mode
(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.

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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.
5.2.1 Video Input/Output panel (no fiber support)
Timing
Select the Minimum Delay checkbox to configure the card for
minimum video delay – less than ¼ line. This allows cascading
of AMX-1901 cards if an operation requires the embedding of
more than 8 channels.
Entering this mode disables certain metadata processing in the
card in order to achieve such a small delay:
•AFD and audio metadata modes Pass, Insert, Auto and
Blank modes are disabled
•Add mode is forced.
A warning message is displayed, requiring user confirmation
before the minimum delay mode is triggered.
Recovery
If there is no signal on the electrical video, the card uses the
reference signal to generate an output video signal in which to
embed the audio. Use the two pull-downs in this section to
specify the output signal format:
•Format: select the video standard
•Signal: select the output signal (black or color bar)
Output Status
The data box reports the actual output video format. If there is
neither reference nor input video signal, the card enters a free-
run mode, flagged by the “Free-Run” icon.
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).
Figure
5.2 Video Input/Output panel (without fiber)
Figure
5.3 Video Input/Output panel (with fiber)

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AMX-1901 | 15
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 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
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 three tabs that give access to metadata processing on the AMX-1901 card:
•TC-GPI
•AFD
•AUDIO
5.3.1 TC-GPI tab
This tab controls timecode and GPI embedding into the output
SDI data stream.
Insertion – Timecode (DVITC) or Timecode (LTC & VITC):
•3G/HD signals – select BOTH to insert both LTC and
VITC; select OFF to disable insertion and pass incoming
signals through unchanged.
•SD signals – select ON to insert DVITC into the output,
incoming TC present on the insertion line will be deleted;
select OFF to disable insertion and pass incoming
signals through unchanged
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:
Figure
5.4 Metadata Panel – TC-GPI tab

GUIDE TO INSTALLATION AND OPERATION
16 | AMX-1901
•LTC input (on the rear panel)
•DVITC (SD) embedded in the SDI input on the same line that has been selected in this panel for embedding
•ATC-LTC (3G/HD) embedded in the SDI input
•ATC-VITC (3G/HD) embedded in the SDI input
The Timecode Embedding section provides resources to configure the embedding process.
Delay: Adjust the timecode value to compensate for a 1-to-50 frame offset between the video and the LTC.
Value: [0, 1, 2, …, 50 frames]
SD Insertion Line: Select the line in which to embed LTC in the SD-SDI output signal. Available only when SD is
detected at the input.
[Range is 10-20 for 525; 7-22 for 625]
SD Duplicate: Embed a duplicate LTC in the SD-SDI output signal on the “SD Insertion Line” + 2. Available only when
SD is detected.
GPI Status: The icons show the status of the two GPI inputs on the rear panel.
GPI Embedding: Set up the embedding of GPI data in the output data streams. For each of the two GPIs:
Mode: Use the pulldown list to select the operating mode for this GPI:
•OFF – the GPI state is not embedded
•Embed – the data placed on the rear-panel GPI port is embedded to a pre-defined user bit within timecode in
the outgoing data stream.
When Embed is selected, use the Bit pulldown list to set which of the user bits (1-16) will be used to carry
the GPI data. The default is: GPI 1 on bit 1; GPI 2 on bit 2. If the same bit is selected for both GPIs, GPI 1 is
embedded.
5.3.2 AFD tab
The Active Format Descriptor (AFD) flag is used to identify
the aspect ratio and protected areas of a video signal. The
AMX-1901 manages the transfer of the AFD flag between its
input and output, but does not use the AFD flag to perform
any picture manipulation. The AFD flag is implemented
differently in HD and SD:
•In HD, the AFD flag (SMPTE 2016) is sent as an ancillary
packet, normally found on line 11 in the vertical ancillary
space.
•In SD, the AFD flag is sent as a Video Line Index (VLI)
signal (RP 186), as an AFD packet (SMPTE 2016), and, for
625 only, as a Wide Screen Signaling (WSS) signal (ITU-R
BT.1119-2).
Note: The term AFD is used to represent all three types of
flags – SMPTE 2016 ancillary packet, VLI, and WSS.
The two graphics at the top of the panel show representations
of the input and output AFDs and indicate the status (e.g.
detected, inserted) and the AFD code. If no AFD is present,
the “screen” will be gray. See ANNEX 3 – AFD Flags on page
57 for information about AFD flags and terminology.
Figure
5.5 Metadata - AFD tab