AJA Video Systems Inc HA5-4K Operating instructions

HA5-4K Mini-Converter
HDMI to SDI
Version 1.18
Published October 23, 2023
Installation and Operation Guide

HA5-4K Mini-Converter v1.18 2 www.aja.com
Notices
Trademarks
AJA® and Because it matters.® are registered trademarks of AJA Video Systems, Inc.
for use with most AJA products. AJA™ is a trademark of AJA Video Systems, Inc. for
use with recorder, router, software and camera products. Because it matters.™ is a
trademark of AJA Video Systems, Inc. for use with camera products.
Corvid Ultra®, lo®, Ki Pro®, KONA®, KUMO®, ROI® and T-Tap® are registered trademarks of
AJA Video Systems, Inc.
AJA Control Room™, KiStor™, Science of the Beautiful™, TruScale™, V2Analog™ and
V2Digital™ are trademarks of AJA Video Systems, Inc.
All other trademarks are the property of their respective owners.
Copyright
Copyright © 2023 AJA Video Systems, Inc. All rights reserved. All information in
this manual is subject to change without notice. No part of the document may be
reproduced or transmitted in any form, or by any means, electronic or mechanical,
including photocopying or recording, without the express written permission of AJA
Video Systems, Inc.
Contacting AJA Technical Support or Sales
Please have all pertinent information at hand prior to contacting AJA support or sales.
Support Telephone: [phone]
Support Website: https://www.aja.com/support/contact
Support Email: suppor[email protected]
Sales Email: [email protected]
Shipping Address: AJA Video Systems
180 Litton Drive
Grass Valley, CA 95945, USA

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Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Contacting AJA Technical Support or Sales . . . . . . . . . . . . . . . . . . . . . . . 2
Chapter 1 – Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Default Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
AJA Mini-Cong Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
I/O Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Lock LED Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 2 – Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
USB Control and Setup—Using AJA Mini-Cong . . . . . . . . . . . . . . . . . . . 7
Acquiring AJA Mini-Cong . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Installing Mini-Cong . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Running Mini-Cong. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Operating AJA Mini-Cong . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Tabbed Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Input Tab Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
EDID Tab Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Output Tab Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
HDR Metadata Tab Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
HDMI In HDR Metadata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Output Overrides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Audio Tab Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Update Tab Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Info Tab Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Appendix A – Specications . . . . . . . . . . . . . . . . . . . . . . . . 23
HA5-4K Tech Specs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Appendix B – Safety and Compliance . . . . . . . . . . . . . . . . . .26
Warranty and Liability Information . . . . . . . . . . . . . . . . . . . .33
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Contents

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Chapter 1 – Introduction
Overview
AJA’s HA5-4K Mini-Converter provides high-quality conversion of HDMI to 4K SDI
with 4x 3G SDI outputs. HA5-4K allows conversion of HDMI video from DSLRs,
mirrorless cameras, action cameras, or prosumer 4K video cameras to 4K SDI for
use in professional workflows. HA5-4K is also capable of analyzing HDR infoframe
data coming in over HDMI when used with AJA Mini-Config software.
Default Operation
The HA5-4K auto configures to the connected HDMI input. The auto-configure
function identifies the connected input and outputs the equivalent SDI format.
An SD or HD output signal uses only BNC SDI Out 1, and the remaining BNC
output connectors are inactive by default. However, the DA function accessible
with Mini-Config allows replication of the output signal on those extra output
BNCs.
AJA Mini-Config Control
AJA’s Mini-Config application is available for firmware updates and advanced
configuration. Configuration set via Mini-Config is stored in the HA5-4K unit
through subsequent power cycles.

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Features
• Convert HDMI 2.0b to Quad-3G, 4K/UltraHD 60 fps at 4:4:4, 4:2:2, and 4:2:0
• Supports quadrant (square division) and 2SI (two sample interleave) 4K/
UltraHD SDI mapping
• EDID Emulation
• Analyzes HDR Infoframe data coming in over HDMI in accordance with HDMI
v2.0b/CTA-861-G
• HDR Metadata VPID Pass-through with optional override
• Convert between integer and non-integer frame rates using frame drop/
repeat
• Embedded audio pass-through of E-AC-3 (Dolby Digital Plus) compressed
audio, including DD+ Atmos (aka DD+ JOC) immersive sound
• Configure via USB port and supplied AJA Mini-Config software on PC/Mac
• Uses 5-20 VDC power (DWP-U-R1 universal power supply included)
• Five year warranty
NOTE: 3D is not supported in this converter.
NOTE: 720p 4:4:4 formats are not supported in this release.
Block Diagram
Figure 1. HA5-4K Converter, Simplified Block Diagram
SDI Out
1
SDI Out
2
SDI
XMIT
Delay
Sample
Rate
Converter
SDI Out
3
SDI Out 4
Video
Video
Audio
Audio
HDMI v2.0
Input with
Embedded
Audio
USB Bus
(connect to
PC or Mac)
Control
HDMI v2.0
RCVR
Frame
Buer
and
Video
Processing
Audio
Disembed
SDI
XMIT
SDI
XMIT
SDI
XMIT
Video
Video
Video

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I/O Connections
Figure 2. HA5-4K Converter Connections
Input
HDMI
Connector
USB Port
+5-20 VDC
Power
Input
SDI Output 1
SDI Output 3
SDI Output 4
SDI Output 2
Power LED
Lock LED
Lock LED Status Indicators
• Off = No signal / no valid input
• Green = SD-SDI
• Red = HD -SDI
• Amber = 3G-SDI
Installation
Typically, HA5-4K installation consists of the following steps:
1. Ensure the HA5-4K is disconnected from power.
2. Connect video equipment to the converter BNCs and HDMI connector.
3. Apply power to the converter (AJA power supply included).
4. The HA5-4K will now run using the default factory settings. If you wish to
alter the factory settings, you’ll need to:
• Install the AJA Mini-Config software on your computer
• Attach the HA5-4K via USB
• Make your changes using AJA Mini-Config setup screens.
This process is detailed in "USB Control and Setup—Using AJA Mini-Config" on page
7.
NOTE: The HA5-4K packs an unprecedented feature set into a mini converter box. As
a result, the unit uses approximately 10 watts of power. It will be very warm
to the touch, which is normal. The unit is engineered to operate across the full
temperature range, from 0 to 40 degrees C.
NOTE: For highest reliability, the mini converter relies on convection cooling instead
of using a built-in fan. Therefore, when installing the unit, mount in a location
where it has access to air for proper cooling. Do not stack the HA5-4K with other
mini converters.

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Chapter 2 – Operation
USB Control and Setup—Using AJA Mini-Config
Your AJA Mini-Converter can be used right out of the box for some applications
since it is designed to recognize inputs and perform standard actions
automatically by default. However, to use its full capability, you must use AJA’s
Mini-Config software application for PCs and Macs. This same application can be
used to update to new Mini-Converter software released by AJA.
Acquiring AJA Mini-Config
AJA’s Mini-Config application is available for download from the AJA website.
To download the latest AJA Mini-Config package, which includes the AJA Mini-
Config application, Mini-Converter firmware, and documentation, go to:
https://www.aja.com/en/products/mini-converters/mini-config-software
Select either the Windows or Mac icon to download the desired version.
Mini-Converter Documentation
Included with the AJA Mini-Config package is a complete set of documentation
for all Mini-Converters supported by AJA Mini-Config. A .PDF of the Installation
and Operation Guide for the currently connected Mini-Converter can be accessed
from the AJA Mini-Config UI via the Help/Manual drop-down menu.
Documentation for all AJA Mini-Converters that use AJA Mini-Config can also
be accessed directly in the AJA Mini-Config download package Documentation
folder, and via the Documentation icon available on the Mac installer.
Documentation (and firmware) included with the AJA Mini-Config application
are the versions available at the time of distribution. However, Mini-Converter
software, firmware and documentation are updated regularly, so newer versions
may exist.
To download the latest documentation for an individual Mini-Converter, go to:
https://www.aja.com/en/category/mini-converters
and navigate to the Support webpage of that Mini-Converter.
Installing Mini-Config
PC Installation
NOTE: If you have an older version of Mini-Config software installed on your PC, AJA
recommends uninstalling the older version before installing the current version.
To install Mini-Config on a Windows PC:
1. Download the application from the AJA website (select the Windows icon
on the Mini-Config Support web page).
2. Open the AJA_MiniCong.zip le
3. Double-click on the MiniInstaller.msi le.
4. A Setup Wizard will guide you through the installation.

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Figure 3. Mini-Config PC Setup Wizard
5. Click Next to begin. Answer the questions in the subsequent dialogues.
When nished, an AJA Mini-Cong shortcut will be installed on the desktop,
and you will be able to locate the Mini-Cong application in the AJA folder
in the Programs listing.
NOTE: If the same version of the Mini-Config application already exists on the PC, a
different Setup Wizard appears.
Figure 4. Mini-Config Setup Wizard, Reinstallation
With this screen you can Repair (reinstall) or Remove (uninstall) Mini-Config on
the PC.
Mac Installation
To install the application on a Mac:
NOTE: Intel and Apple Silicon (M1/M2) based CPUs are supported for use with AJA Mini-
Config software.
1. Download the application from the AJA website (select the Apple icon on
the Mini-Config Support web page).
2. Open the AJA_MiniCong folder.
3. Double-click on the AJAMiniCong.dmg le.

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4. Answer the prompt and a utility program will be launched.
Figure 5. Mini-Config Mac Installer
5. To complete the installation drag the MiniCong.app icon to the
Applications folder.
Running Mini-Config
Connect the Mini-Converter to the PC or Mac via the supplied USB cable. Connect
the external power supply (supplied) to the Mini-Converter.
PC Startup
To run Mini-Config on a PC, double-click on the AJA Mini-Config icon on your
desktop, or open the AJA folder in the program list and click on the AJA Mini-
Config application located inside the Mini-Config folder.
Mac Startup
To run Mini-Config on a Mac, open the Applications folder and locate the AJA
Mini-Config application. Double-click the application to launch it.

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Saving Setups
A File drop down menu on the Mini-Config application bar (similar for Mac and
PC) allows you to save the current state of the Mini-Converter to a preset file for
later recall.
Using this feature you can set up the converter for different applications, storing
each configuration (Save Preset As...) with a unique name for easy recall (Open
Preset...).
A Revert to Factory Settings menu item similarly allows you to change the
settings back to AJA’s factory defaults.
Operating AJA Mini-Config
The AJA Mini-Config application provides a graphic interface for viewing settings
and updating software. It consists of an information area at the top that shows
the available Mini-Converters attached to the computer via USB, with a graphical
rendering of the selected Mini-Converter showing all the connectors and their
current state.
Colored text next to the connectors indicates the signal type and what the Mini-
Converter is doing:
• Blue text indicates the values automatically selected
• Black text indicates values that you have manually selected
• Red text indicates the Mini-Converter is not detecting a signal, or cannot
operate with the current user settings.
NOTE: Even if no output device is detected, the SDI connector text still shows the signal it
is outputting.
NOTE: Configuration settings in red will change based on the attached output device as
well as input signals. For improved accuracy and reliability, you should configure
the Mini-Converter only when the target output device is attached and input
signals are supplied at the inputs.
Screens are virtually the same on both PC and Mac, with subtle differences that
reflect the general look of the platform environment.

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Figure 6. Example AJA Mini-Config Screen
Select a USB port and
an attached
Mini-Converter
(name in parentheses).
Firmware Version
and Serial Number
Status Message
Tabbed Screens
Each connector is
labeled with the
signals currently
detected or
manually selected.
Selecting a Mini-Converter with the pulldown menu causes this application to
connect to the selected converter. The graphic of the Mini-Converter and text
below it provides:
• Type of converter
• Firmware version
• Serial number of the unit.
A status field at the bottom of the screen shows if your application is connected
and communicating with the Mini-Converter.
When configuring the Mini-Converter, select it from the top pulldown, view the
current settings and change any values. Making a change communicates that
new value to the Mini-Converter’s non-volatile memory.
Tabbed Screens
The Tabs delineate control screens with groups of controls for each type of task to
be performed. The controls for the actual configuration parameters are specific
to each Mini-Converter type. When you Click on any of the tab buttons, the pane
below the tabs will change to match your tab selection. Any changes you make
are immediately applied and will be saved, overwriting previous settings.

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Input Tab Screen
About Bits Per Pixel
With HDMI, YCbCr is always reported as 24bpp, which is 12 bit depth (whether the
input signal is 8, 10, or 12 bit depth).
To determine the bit depth for RGB, divide the bpp by 3. For example:
• 24bpp = 8 bit depth
• 30bpp = 10 bit depth
• 36bpp = 12 bit depth
RGB Range
Selects the Input Video Color Range for RGB signals. Choose from:
• Auto (default)
• SMPTE
• Full
Preprocess
Preprocessing circuitry allows HA5-4K to receive high jitter sources.
• Off (default) - No jitter preprocessing.
• On - Jitter preprocessing active.

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EDID Tab Screen
EDID (Extended Display Identification Data) is used to find the highest signal
resolution that is compatible with both the source and the destination. When
an HDMI source device is initially connected to the HA5-4K, the HA5-4K will
communicate with the signal source about what formats the HA5-4K supports.
The HA5-4K and the signal source will negotiate the best mutually compatible
signal resolution.
Preferred Video Format
The HA5-4K's default EDID selection is Auto, but it can be configured by the user
to any of the following formats and frame rates:
• Auto
• 1280x720p50
• 1280x720p60
• 1920x1080i50
• 1920x1080i60
• 1920x1080p50
• 1920x1080p60
• 2048x1080p50
• 2048x1080p60
• 3840x2160p50
• 3840x2160p60
YCbCr Support
This parameter determines whether the HA5-4K will signal to its HDMI source that
the HA5-4K will support (Yes) or will not support (No) YCbCr input formats.
NOTE: RGB formats are always supported by default in an HDMI sink.

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Max Audio Channels
Selects the number of audio channels to be used from the signal source. Choose
from:
• 2 Ch
• 8 Ch

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Output Tab Screen
Color Space
Selects the desired output video format. Choose from the following:
• Auto (default) Selects the video format based on the input video and the
attached device's capabilities.
• 4:2:2 YCbCr
• 4:4:4 RGB
• 4:4:4 YCbCr (HFR 4K/UltraHD 4:4:4 limited to 8 bit)
Color Range
Selects the Color Range. Choose from the following:
• Auto - (default) Selects SMPTE vs Full based on incoming HDMI and setting of
Input Color Range.
• SMPTE
• Full
Pad/Crop
Selects pixel padding and cropping conversions between UltraHD and 4K
formats. Choose from the following:
• Off - (default) No processing
• Pad - Add black pixels to the left and right sides of the raster to fill a wider
aspect ratio (UltraHD to 4K, or HD to 2K).
• Crop - Crop pixels from left and right sides of the raster to fit a narrower aspect
ratio (4K to UltraHD, or 2K to HD).

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Genlock
Select the genlock reference. Choose from the following:
• HDMI In (default) - Locks to incoming HDMI clock.
• FreeRun - Locks to free running SDI internal clock.
Mapping
Select the 4K/UltraHD pixel mapping format:
• Quadrant (default) - Square Division
• 2SI - Two Sample Interleave
3G-SDI Mode
Selects the 3G SDI Video Mode. Choose from the following:
• Level A (default)
• Level B-DL (Dual Link)
• 2x1.5G-SDI
Enable PtoPsF
Choose to convert incoming progressive format HDMI video to PsF SDI video.
• Off - (default) No conversion.
• On - Converts the video to PsF (if it is progressive format and low frame rate).
DA Function
Choose to replicate the signal on any extra BNC outputs. An SD or HD input signal
can be distributed to all four BNCs. A 4K/UltraHD LFR dual stream output signal
can be distributed to each pair (1-2 and 3-4) of BNC output connectors.
• Off - (default) no video sent to any extra BNC outputs;.
• On - For HD/SD signals, three additional copies of the signal are sent to the SDI
Out 2, 3, and 4 BNCs. For dual link output signals one additional copy of the
signal is sent to the pair of SDI Out 3 and 4 BNCs.
4K/UHD LFR
Controls how Low Frame Rate (23.98, 24, 25, 29.97, 30 fps) incoming video will be
output, using all four BNC outputs (at 1.5 Gbps each), or two BNC outputs (at 3
Gbps each). Choose from the following:
• Quad 1.5 Gbps (default)
• Dual 3 Gbps
Frame Rate
The Output Frame Rate control can be set to convert an integer input frame
rate (like p60) to the matching fractional or non-integer output frame rate (like
p59.94). The frame rate converter accomplishes this by dropping a complete
video frame every 1001 frames. This control can also be set to convert a fractional
or non-integer input frame rate (like p59.94) to an integer output frame rate (like
p60), accomplished by repeating a complete video frame every 1000 frames.

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NOTE: Because audio is disembedded prior to any video processing and then re-
embedded after video processing, there will be no disruption to audio when the
frame rate converter is working.
• Off (default) - No frame rate conversion will be performed. The output frame
rate will match the input frame rate.
• Fractional - If the input frame rate is an integer frame rate, the output frame
rate will be converted to the matching fractional frame rate. Fractional frame
rate input signals are unaffected.
• Integer - If the input frame rate is a fractional frame rate, the output frame rate
will be converted to the matching integer frame rate. Integer frame rate input
signals are unaffected.
HDR Metadata Tab Screen
Click on the HDR Metadata tab to view the received High Dynamic Range static
metadata extensions settings.
The HDR Metadata tab indicates whether HDR metadata is being received on
the HDMI input. If so, it decodes and presents the static metadata descriptors as
defined in CTA-861.3 and HDMI v2.0a.
NOTE: The HA5-4K HDR function does not modify the video data.
NOTE: Hover the cursor over each parameter field to view its corresponding CTA-861.3
description in a pop-up window.
HDMI In HDR Metadata
The twelve Custom Metadata parameters on the left side of the HDR Metadata
displays the incoming HDR color, white point, and luminance values, if present.

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HDR Infoframe Detected
Indicates whether an HDR Infoframe is being received.
• YES - HDR metadata is being received.
• NO - HDR metadata is not being received.
Red, Green, Blue, White Point
These eight values define the color gamut and white point, and are adjustable in
units of 0.00002 cd/m2, with a range of 0.00000 to 1.00000 cd/m2.
DM Lum
These two parameters define the Display Mastering Luminance.
• Minimum: Defines the floor of the SMPTE ST 2086 color volume (in the case of
HDR) and is determined by the mastering environment.
• Range: 0.00000 cd/m2to 1.00000 cd/m2.
• Step size: 0.00002 cd/m2.
• Maximum: Defines the ceiling of the SMPTE ST 2086 color volume (in the case
of HDR) and is determined by the mastering environment.
• Range: 1 cd/m2to 65535 cd/m2.
• Step size: 1 cd/m2.
Maximum: CLL
Represents the highest-value pixel component in an entire scene. It is
determined by analyzing each frame of video, and can be determined in the post
environment.
• Range: 1 cd/m2to 65535 cd/m2.
• Step size: 1 cd/m2.
Maximum: FALL
Represents the maximum of frame-based average light levels taken over an entire
scene, and can be determined in the post environment.
• Range: 1 cd/m2to 65535 cd/m2.
• Step size: 1 cd/m2.
Output Overrides
The override controls on the right can be used to replace incoming or missing
HDR metadata with alternative values for the HA5-4K's SDI VPID outputs.
SDR/HDR
This setting controls what SDR/HDR metadata value is applied to the video
output.
• Auto - Passes the SDR/HDR value from the video input to the output.
• SDR - An SDR value is applied to the output.
• PQ - A PQ value is applied to the output.
• HLG - An HLG value is applied to the output.

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Colorimetry
This setting controls what Colorimetry metadata value is applied to the video
output.
• Auto - Passes the Colorimetry value from the video input to the output.
• BT.601, BT.709 and BT.2020 values are passed through.
• If a non-supported colorimetry value is received, then BT.601 is signaled
for SD formats and BT.709 is signaled for HD/UltraHD formats.
• BT.709 - A BT.709 value is applied to the output.
• BT.2020 - A BT.2020 value is applied to the output.
Audio Tab Screen
SRC
Choose the audio conversion to be performed on the incoming HDMI audio.
• Convert - HDMI audio will be sample rate converted, if necessary, to 24-bit/48
kHz audio.
• Pass Through - HDMI audio will be passed to the SDI embedded audio
channels without conversion.
Embed into SDI
Choose which set of SDI embedded audio output channels will receive up to
eight channels of embedded audio received from the incoming HDMI signal.
Audio is embedded only into the SDI 1 output link, which may be carried on one
or more of the SDI Out BNC connectors, depending on configuration. Choose
from the following:
• Channels 1-8

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• Channels 9-16
In Quad output mode, the SDI embedded audio will only be sent out the SDI Out
1 BNC.
In Dual output mode, when the DA function is Off the audio will only be sent out
the SDI Out 1 BNC. When the DA Function is On, the audio will also be sent out
the SDI Out 3 BNC.
In Single output mode, when the DA function is Off the audio will only be sent
out the SDI Out 1 BNC. When the DA Function is On, the audio will also be sent
out the SDI Out 2, 3, and 4 BNCs.
Update Tab Screen
Use this Update screen to view the software version currently installed on the
converter or install new firmware.
NOTE: When discussing Mini-Converters, “Firmware” is software that will be stored in
the Mini-Converter’s non-volatile memory and used when it is powered up. This is
something different than the AJA Mini-Config application software. The version
numbers shown in the Update screen refer only to the firmware.
Installed
This field shows the version of the firmware currently installed inside the Mini-
Converter.
Desired
This field shows the version of firmware embedded in the AJA Mini-Config
application which you can install into the Mini-Converter by clicking the Update
button.