MICROTRONIX DX-4400 Series User manual

4056 Meadowbrook Drive, Unit 126
London, ON Canada N6L 1E3
www.microtronix.com
MICROTRONIX
DX-4400
SD/HD/2K/4K-SDI TEXT &GRAPHICS
OVERLAY INSERTER
USER MANUAL –VERSION 1.5.1
DATE ISSUED:APRIL MARCH 15,2019

DX-4400
User Manual
Page 2 of 125
Document Revision History
This User Manual provides operating instructions and information the Microtronix DX-4400, SD/HD/2K/4K SDI
Text & Graphic Overlay Inserter, (Model Part Numbers: DX-4400-TI-2K and DX-4400-TI-4K).
The following table shows the document revision history.
Date
Rev.
Description
Mar. 30, 2017
0.9
Beta Release
Feb 14, 2017
1.0
Add 4K support
July 12, 2017
1.1
Add commands for output mode, chroma key for the PiP Text Inserter mode.
Added ancillary data enable/disable command for the PiP Text Inserter and Dual
Text Inserter modes.
Aug 2, 2017
1.2
Add user defined commands used to configure toggle and DIP switch actions.
Aug 23, 2017
1.2.1
Add information about licensing of 4K product.
Sep. 20, 2017
1.3
Add frame delay command for Dual & PiP modes.
Add double buffer option to allow running overlay with a single buffer. This will
improve performance for overlays with lots of updates.
Add ability to run QML scripts.
Nov. 2, 2017
1.3.1
Add QML application example for display of time, date and scrolling news feed.
Updated information on Serial/Network port user connections.
Fixed bug in QML scripts that required running in single buffer mode.
Added TZ command and changed TS command to change system time too.
Feb. 22, 2018
1.3.2
Re-formatted document layout with section numbering.
Fixed memory leak bug in QML.
April 11, 2018
1.3.3
Added Low Latency Dual mode and Dual mode with Zoom.
Aug. 10, 2018
1.4
Added feature to Savesets that allows the database to be used in memory thereby
reducing flash wear and allow Saveset replication.
Added Low Latency 4K mode.
Reduced command response to improve speed.
Nov. 6, 2018
1.4.1
Fix Compliance Appendix information and other minor edits
Jan. 8, 2019
1.4.2
Document Web UI feature and add Index
Feb. 20, 2019
1.5.0
Add Z4K and LPiP Modes. Update zoom description.
Mar. 4, 2019
1.5.1
Updated available fonts of Table 7

DX-4400 –3G-SDI Text & Graphics Overlay Inserter –User Manual
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How to Contact Microtronix
E-mail:
Sales Information: [e-mail]
Technical Support: [e-mail]
Website:
General Website: http://www.microtronix.com
FTP Upload Site: http://microtronix.leapfile.com
Phone Numbers:
General: [phone]-0091
Fax: [phone]
Product Design Customizations
Microtronix can customize the functionality of the DX-4400 –SD/HD/2K/4K-SDI Text & Graphics Overlay
Inserter software to customer requirements. Contact Microtronix sales ([e-mail]) with your
requirements.
Safety Critical & Life System Applications –Notice to User
The Microtronix DX-4400 SDI Video product family is not designed or approved by Microtronix for use in safety-
critical or life-critical system or application in which a failure or malfunction may result in one (or more) of the
following outcomes:
(a) death or serious injury to people,
(b) loss or severe damage to equipment/property, or
(c) environmental harm.
Microtronix assumes no liability for any consequential damages –whether direct or indirect –if the product is
used in this type of Application.

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Table of Contents
1Key Product Features..............................................................................................................................10
1.1 Supported Functionality ...................................................................................................................10
1.2 Product Variants...............................................................................................................................11
1.3 Package Contents............................................................................................................................11
2Introduction..............................................................................................................................................12
2.1 Text and Graphics Overlay OSD Features ......................................................................................12
2.2 Other Features.................................................................................................................................12
2.3 User Connections.............................................................................................................................13
2.3.1 RS-232 Control Port..................................................................................................................13
2.3.2 USB Serial Port.........................................................................................................................13
2.3.3 Ethernet Port.............................................................................................................................13
2.4 Hardware..........................................................................................................................................13
2.4.1 Enclosure Dimensions..............................................................................................................14
2.5 Power Requirements........................................................................................................................14
2.5.1 DC Power Connector................................................................................................................15
2.6 Environmental Operating Limits.......................................................................................................15
3Operation.................................................................................................................................................16
3.1 Powering on the DX-4400................................................................................................................16
3.2 Modes of Operation..........................................................................................................................16
3.3 Default Configuration and Video Mode............................................................................................17
3.4 OSD Layers......................................................................................................................................17
3.5 LED Status Indicators ......................................................................................................................18
3.6 External Control of the DX-4400......................................................................................................18
3.6.1 Serial Control Mode of Operation .............................................................................................19
3.6.1.1 USB 2.0 to RS-232 Serial Port Adapter Kit .......................................................................19
3.6.1.2 USB Serial Port..................................................................................................................19
3.6.2 Network Control Using Raw TC/IP ...........................................................................................19
3.6.3 Network Control Using Web UI.................................................................................................20
3.6.3.1 Connecting to the Web UI .................................................................................................20
3.6.3.2 Default Static Network IP Address ....................................................................................21
3.6.3.3 DHCP Assignment of Network IP Address........................................................................21
3.6.4 Serial/Network Control –Command Port Syntax .....................................................................22
3.6.5 Manual Mode of Operation .......................................................................................................23
3.6.5.1 Toggle Switch Settings......................................................................................................23
3.6.5.2 DIP Switch Settings ...........................................................................................................23
3.7 Setting DX-4400 Mode of Operation................................................................................................23
3.7.1 Set Mode Commands...............................................................................................................25
3.7.1.1 Example - Set Mode Command ........................................................................................26
3.8 Overview of Overlay Fields ..............................................................................................................26
3.8.1 Coordinate System and Field Position......................................................................................27
3.8.2 Color and Transparency ...........................................................................................................28
3.8.3 Text Overlay Fields...................................................................................................................28
3.8.3.1 Available Text and Symbols Available Font & Symbol......................................................28
3.8.3.2 Text Overlay Command Syntax.........................................................................................29
3.8.3.3 Example: Text Drawing Style Options...............................................................................30
3.8.3.4 Example: Sample of DX-4400 Font Styles........................................................................31
3.8.4 Graphic Overlay Fields .............................................................................................................32
3.8.4.1 Rectangle Shapes .............................................................................................................32
3.8.4.2 Example of Drawing an Ellipse..........................................................................................33
3.8.4.3 Circle and Ellipse Shapes..................................................................................................33
3.8.4.3.1 Example of Drawing an Ellipse. .....................................................................................33
3.8.4.4 Line Shape.........................................................................................................................33
3.8.4.4.1 Example of Drawing a Line............................................................................................33

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3.8.4.5 Graphic Overlay Command Syntax...................................................................................33
3.8.5 Image Overlay Fields................................................................................................................35
3.8.5.1 Image Field File Formats...................................................................................................35
3.8.5.2 Image Overlay Command Syntax......................................................................................35
3.8.5.3 Example: Image Field Overlay Display..............................................................................37
3.8.6 QML Field Commands..............................................................................................................37
3.8.6.1 QML Image Overlay Command Syntax.............................................................................38
3.8.6.2 Example: QML Field Example of Time, Date & Scrolling News Feed Overlay.................38
3.9 Video Path Settings & Control..........................................................................................................40
3.9.1 PiP Size and Position Commands............................................................................................40
3.9.1.1 Example: Configuring Side By Side Display Using PiP Commands.................................42
3.9.1.2 Example: Switching between two inputs using a Full Screen PiP.....................................42
3.9.2 Video Zoom Commands...........................................................................................................43
3.9.2.1 Example: Configuring a Split Screen Display Using PiP and Zoom Commands..............44
3.9.3 Video Output Mode Commands ...............................................................................................45
3.9.3.1 Conversion of Video Formats............................................................................................46
3.9.4 Video Background Color Command.........................................................................................46
3.9.5 Video Alpha Commands...........................................................................................................47
3.9.5.1 Example: Alpha-blending of Computer-generated Graphics Overlay ...............................48
3.9.6 Video Buffering and Frame Delay.............................................................................................49
3.9.6.1 Video Frame Delay Compensation Commands................................................................49
3.9.6.1.1 Example: Setting Frame Delay of SDI Output ...............................................................50
3.9.7 Miscellaneous Video Path, Status & Report Control Port Commands.....................................51
3.10 Time Commands..............................................................................................................................51
3.11 Database Saveset Commands ........................................................................................................52
3.11.1 Saveset Default Commands.....................................................................................................52
3.12 User Defined Commands.................................................................................................................53
3.12.1 Configuring Toggle Switch Functions .......................................................................................53
3.12.1.1 Example 1: Toggle Switch Control of PiP Window Functions...........................................54
3.12.1.2 Example 2: Toggle Switch Control of ARM Graphics Overlay Fields................................54
3.12.1.3 Example 3: Controlling the Display of a Single Text Field.................................................55
3.12.2 Configuring DIP Switch Functions ............................................................................................55
3.12.2.1 Example: Control of PiP Window Size via DIP Switch Settings........................................56
3.13 Miscellaneous Control Port –System Status & Report Commands................................................57
3.13.1 Serial Port Command Buffer Reset ..........................................................................................57
3.14 ARM SoC Processor........................................................................................................................57
3.15 Network Interface.............................................................................................................................57
3.16 Linux OS Root Account Login..........................................................................................................57
3.16.1 Default Linux OS User Login ....................................................................................................58
3.16.2 Mounting Removable File Systems ..........................................................................................58
3.16.3 Copying Files ............................................................................................................................58
3.16.4 Adding New Font Files..............................................................................................................58
3.16.5 Date and Time Configuration....................................................................................................59
3.16.5.1 Time Zone..........................................................................................................................59
3.16.5.2 Linux OS System Time......................................................................................................59
3.16.5.3 Accessing NTP Servers.....................................................................................................59
4IP Core Firmware ....................................................................................................................................60
4.1 IP Core Firmware Files ....................................................................................................................60
4.1.1 IP Core Firmware Upgrades.....................................................................................................60
4.2 Firmware Licensing of 4K Features .................................................................................................61
4.2.1 IP Core License Installation......................................................................................................61
5Using the Web UI ....................................................................................................................................62
5.1 Connecting to the Web UI................................................................................................................62
5.2 Overview of Web UI .........................................................................................................................63
5.2.1 Web UI Menu............................................................................................................................63
5.3 Web UI –General Environment Menu.............................................................................................63
5.3.1 General Environment –Mode of Operation Page ....................................................................63

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5.3.2 General Environment –Manage Savesets Page .....................................................................64
5.3.2.1 Use of Savesets.................................................................................................................65
5.3.3 General Environment –Control Interface Page........................................................................66
5.3.4 General Environment –Status Page........................................................................................66
5.4 Web UI –Video Setup Menu............................................................................................................67
5.4.1 Video Setup –Alpha Blend Page .............................................................................................67
5.4.2 Video Setup –Background Color Page....................................................................................68
5.4.3 Video Setup –Frame Delay Compensation Page....................................................................69
5.4.3.1 Video Setup –PiP Display Settings Page.........................................................................69
5.4.3.2 Video Setup –Video Control Page....................................................................................70
5.4.3.3 Video Setup –Video Output Page.....................................................................................71
5.4.3.4 Video Setup –Zoom Page ................................................................................................71
5.4.4 Web UI –Overlay Fields Menu.................................................................................................72
5.4.4.1 Overlay Fields –Graphic Field Page.................................................................................72
5.4.4.1.1 Use of Graphic Fields Page...........................................................................................72
5.4.4.2 Overlay Fields –Image Field Page ...................................................................................72
5.4.4.2.1 Use of Image Field Page................................................................................................73
5.4.4.3 Overlay Fields –QML Script File Page .............................................................................73
5.4.4.3.1 Management of QML Script Files ..................................................................................74
5.4.4.4 Overlay Fields –Text Fields Page.....................................................................................75
5.4.4.4.1 Use of Text Fields Page.................................................................................................75
5.5 Web UI –User-defined Commands Menu.......................................................................................76
5.5.1 User-defined Commands –Reset Page...................................................................................76
5.5.2 User-defined Commands –DIP Switches ................................................................................76
5.5.2.1 Use of DIP Switch Page ....................................................................................................77
5.5.3 User-defined Commands –Toggle Switch Left Page...............................................................77
5.5.3.1 Use of Toggle Switch Left Page........................................................................................78
5.5.4 User-defined Commands –Toggle Switch Right Page ............................................................78
5.5.4.1 Use of Toggle Switch Right Page......................................................................................79
5.6 Web UI –File Manager Menu ..........................................................................................................79
5.6.1 File Manager –DX Command Files Page................................................................................79
5.6.1.1 Use of Command Files Manager Page .............................................................................80
5.6.2 File Manager –Font Files Page................................................................................................81
5.6.2.1 Use of Image Files Manager Page....................................................................................81
5.6.3 File Manager –Image Files Page.............................................................................................81
5.6.3.1 Use of Font Files Manager Page.......................................................................................81
5.6.4 File Manager –QML Files Page...............................................................................................82
5.7Web UI –System Configuration Menu.............................................................................................83
5.7.1 System Configuration –Authentication Page...........................................................................83
5.7.2 System Configuration –Date and Time Page ..........................................................................83
5.7.3 System Configuration –Maintenance Page .............................................................................84
5.7.4 System Configuration –System Log Page...............................................................................85
5.7.5 System Configuration –Web Server Page...............................................................................86
5.7.6 System Configuration –Edit System Files Page......................................................................86
5.8 Web UI –System Status Menu........................................................................................................87
5.8.1 System Status –Command Line Page.....................................................................................87
5.8.2 System Status –System Logs Page ........................................................................................87
6Extended Font Tables .............................................................................................................................89
6.1 Wingding Font..................................................................................................................................89
6.2 Extended ASCII Fonts......................................................................................................................92
7Troubleshooting.......................................................................................................................................93
8Product Warranty.....................................................................................................................................94
8.1 Hardware Warranty..........................................................................................................................94
8.2 Firmware Warranty...........................................................................................................................94
8.2.1 Limited Liability .........................................................................................................................94
Appendix A: Description of the DX-4400 OEM Board...............................................................................95
A.1 DX-4400 OEM Board –Hardware Features ....................................................................................95

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A.1.1 SDI Video Interfaces.................................................................................................................96
A.1.2 DB9 RS-232 Control Port, J10..................................................................................................96
A.1.3 USB Serial Control Port, J11 ....................................................................................................96
A.1.4 USB OTG Port, J4 ....................................................................................................................96
A.1.5 RS-232 Serial Console Port, J5................................................................................................96
A.1.6 10/100/1G Ethernet Port, J2.....................................................................................................97
A.1.7 Power Requirements ................................................................................................................97
A.1.8 12VDC Board Power Header, J7 & J8......................................................................................97
A.1.9 Fan Header, J9 .........................................................................................................................97
Appendix B: Establishing User Connections to the DX-4400 Product ......................................................99
B.1 Installation of USB to RS-232 Serial Port Adapter Software ...........................................................99
B.1.1 ICUSB232V2 Software Drivers.................................................................................................99
B.1.1.1 Installation of ICUSB232V2 Serial Driver and Terminal Emulator Program......................99
B.2 Establishing RS-232 Serial Communication to a PC.....................................................................100
B.3 Establishing TCP/IP Connection to the DX-4400 Product.............................................................102
B.4 Establishing SSH Connection to the DX-4400 Product .................................................................104
Appendix C: How to Image a New SD Card............................................................................................106
C.1 From a Windows Machine..............................................................................................................106
C.2 From a Linux Machine....................................................................................................................106
Appendix D: Time Zone Names...............................................................................................................107
Appendix E: Regulatory Compliance Information....................................................................................112
E.1 Industry Canada (IC)......................................................................................................................112
E.2 Federal Communications Commission (FCC) Declaration of Conformity......................................114
E.3 CE Declaration of Conformity.........................................................................................................116
E.4 RoHS/REACH Compliance Statement ..........................................................................................119
Index.............................................................................................................................................................121

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Listing of Tables
Table 1: Description of SDI LED Status Indicators 18
Table 2: Command Port Acknowledgement Codes 22
Table 3: Operation of 2-Position Momentary Toggle Switch 23
Table 4: Operation of 4-Postion DIP Switch 23
Table 5: DX-4400 Modes of Operation 24
Table 6: Set Mode Command Syntax 26
Table 7: Text Font and Symbol Font Attributes 29
Table 8: Text Overlay Command Syntax 29
Table 9: Graphic Overlay Command Syntax 34
Table 10: Supported Image Formats 35
Table 11: Image Field Overlay Command Syntax 36
Table 12: QML Field –Image Overlay Command Syntax 38
Table 13: List of Supplied Example QML Files 39
Table 14: PiP Size & Position Command Syntax 41
Table 15: Zoom Command Syntax 43
Table 16: Video Output Mode Command Syntax 45
Table 17: Video Background Color Command Syntax 47
Table 18: Video Alpha Command Syntax 47
Table 19: Video Frame Delay Compensation Command Syntax 50
Table 20: Miscellaneous Video Path, Status & Report Control Port Commands 51
Table 21: Time Command Syntax 51
Table 22: Database Saveset Command Syntax 52
Table 23: Command Syntax for Saveset Default Values 52
Table 24: Toggle Switch –User Defined Command Syntax 53
Table 25: DIP Switch User Defined Command Syntax 55
Table 26: DIP Switch –User Defined Group Command Syntax 56
Table 27: Miscellaneous Control Port Commands 57
Table 28: Windings Character Table 89
Table 29: Windings 2 Character Table 90
Table 30: Windings 3 Character Table 91
Table 31: Extended ASCII Character Table 92
Table 32: Troubleshooting Symptoms 93
Table 33: RS-232 Serial Control Port, DB9 Pin Assignments 96
Table 34: RS-232 Serial Console Port, J5 97
Table 35: 12VDC 2-Pin Header, J8 97
Table 36: Fan 3-Pin Header, J9 98
Table 37: Microtronix RoHS/REACH Compliant DX-4400 SDI Video Products 119
Table 38: List of SCHC Compounds 119

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Listing of Figures
Figure 1: DX-4400 –SD/HD/2K/4K-SDI Text & Graphics Overlay Inserter Product 14
Figure 2: 12Vdc 2.5A 100-240VAC Power Adapter 14
Figure 3: DX-4400 Layer Order 17
Figure 4: DC Power LED 18
Figure 5: SDI Input / Output Status LEDs 18
Figure 6: DX-4400 Web UI Home Page 21
Figure 7: Examples of the DX-4400 Text Drawing Styles 31
Figure 8: Examples of the DX-4400 Font Styles 32
Figure 9: Image Field Overlay Display 37
Figure 10: QML Field Example of Time, Date, & Scrolling News Feed Overlay 39
Figure 11: Side by Side Display Example 42
Figure 12: Split Screen Display Example 45
Figure 13: Example of Computer-generated Graphics Overlay with Transparency 49
Figure 14: DX-4400 Web UI Home Page 62
Figure 15: General Environment –Mode of Operation Page 64
Figure 16: General Environment –Manage Database and Saveset Page 65
Figure 17: General Environment –Control Interface Page 66
Figure 18: General Environment –Command Files Page 67
Figure 19: Video Setup –Alpha Blend Page 68
Figure 20: Video Setup –Alpha Blend Page 68
Figure 21: Video Setup –Frame Delay Compensation Page 69
Figure 22: Video Setup –PiP Display Settings Page 70
Figure 23: Video Setup –Video Control Page 70
Figure 24: Video Setup –Video Output Mode Page 71
Figure 25: Video Setup –Video Output Mode Page 71
Figure 26: Overlay Fields –Graphic Field Page 72
Figure 27: Overlay Fields –Image Field Page 73
Figure 28: Overlay Fields –Image Field Page 74
Figure 29: Overlay Fields –Image Text Page 75
Figure 30: User Defined Command –Reset Page 76
Figure 31: User Defined Command –DIP Switch Page 77
Figure 32: User Defined Command –Toggle Switch Left Page 78
Figure 33: User Defined Command –Toggle Switch Right Page 79
Figure 34: File Manager –Command Files Page 80
Figure 35: File Manager –Font Files Page 82
Figure 36: Overlay Configuration –QML Files Page 82
Figure 37: System Configuration –Authentication Page 83
Figure 38: System Configuration –Time and Date Page 84
Figure 39: System Configuration –Maintenance Page 85
Figure 40: System Configuration –System Log Page 85
Figure 41:System Configuration –Web Server Page 86
Figure 42:System Configuration –Web Server Page 86
Figure 43: System Status –Command Line Page 87
Figure 44: System Status –System Log Page 88
Figure 45: DX-4400 –SD/HD/2K/4K-SDI Text & Graphics Overlay Inserter OEM Board 95
Figure 46: USB to DB9 RS-232 Serial Port Adapter Kit 99
Figure 47: PuTTY Serial Port Session Settings 101
Figure 48: PuTTY Serial Port Terminal Settings 101
Figure 49: PuTTY Serial Port Settings 102
Figure 50: PuTTY TCP/IP Session Settings 103
Figure 51: PuTTY Terminal Settings 103
Figure 52: PuTTY SSH Session Settings 105
Figure 53: PuTTY SSH Terminal Settings 105

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1 Key Product Features
The key hardware features of the DX-4400 –SD/HD/2K/4K-SDI Text & Graphics Inserter includes:
•Two 75Ω 3G-SDI input ports
•Four 75Ω 3G-SDI output ports
oTwo for overlay on output
oLoop outputs for SDI input 1 and input 2
•One DB9 RS-232 Serial Control Port
•One USB Serial Control Port
•One USB OTG Port,
•One 10/100/1000 Ethernet Port, and
•Integrated real-time clock with support for NTP & PTP protocols.
1.1 Supported Functionality
The DX-4400 SD/HD/2K/4K-SDI Text & Graphics Overlay Inserter supports the following functionality:
•Video Input formats::
oNTSC @ 29.97 fps (frames per second)
oPAL @ 25 fps
o720p @ 25 / 29.97 / 30 / 50 / 59.94 / 60 fps
o1080i @ 23.98 / 24 / 25 / 29.97 / 30 fps
o1080p @ 23.98 / 24 / 25 / 29.97 / 30 / 50 / 59.94 / 60 fps
o1080psf @ 23.98 / 24 / 25 / 29.97 / 30 fps
o2048x1080p @ 23.98 / 24 / 25 / 29.97 / 30 / 50 fps
oUHD 4K: 3840x2160p @ 23.98 / 24 / 25 / 29.97 / 30 fps (Dual Link, 3 Gb/s SDI, Quad and 2SI
mapping)
oDCI 4K: 4096x2160p @ 23.98 / 24 / 25 / 29.97 / 30 fps (Dual Link, 3 GB/s SDI, Quad and 2SI
mapping)
oYCbCr 4:2:2
Note: Support for 4K video is an optional firmware upgrade.
•Video Output automatically adjusts to match the input video format
•Text and Graphics Overlay OSD:
oMultiple overlay layers
oUnrestricted independent text or graphic Fields per layer
oFields support text, rectangle, line, circle, ellipse, and graphic images.
oFilled or open shapes
oSize, color, transparency and position control
oConfigurable background color for text
oAlpha blended text and background
oAlpha blending of graphic components
oScaling of text and graphic images
oText scrolling and crawling for news-feed applications
•User configurable frame delay from 1-20 frames
•Digital zoom (video scaling) of PiP input
•Supports the Qt Meta Language (QML) for enhancing user interface-centric applications
•File storage of user configuration and text fields for auto system recovery after power-off

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•User control via: RS232 Control port, USB Serial Control port, a raw TCP/IP connection using either; a
Telnet (terminal emulator) Client, a SSH connection or through a Web UI browser interface.
1.2 Product Variants
The DX-4400 product has two variants:
1) PN: DX-4400-TI-2K –the SD/HD/2K Dual Channel -SDI Text & Graphics Inserter, which supports 2
independent SDI links at standard broadcast video resolutions including SD, HD, FHD and 2K.
2) PN: DX-4400-TI-4K –the SD/HD/2K/4K-SDI Text & Graphics Inserter supports all the features of the
above product with additional support for 4K video resolutions in a dual-link 3G-SDI configuration.
1.3 Package Contents
The DX-4400 package contents include either the DX-4400-TI-2K or the DX-4400-TI-4K hardware product and
the following items:
•PN: 811-USB-RS-232 –the USB to DB9 RS-232 Serial Port MM Adapter Kit,
•PN: 811- USB2HABM6 –a 6ft Mini USB 2.0 Type A to Mini B Cable Adapter,
•PN: 811-USB-OTG –a 5" OTG Micro USB to USB Male-to-Female Cable Adapter,
•PN: 2880SDC8 –8GB microSDHC Class 4 Flash Card, (installed in microSD Card slot)
•PN: 5883-PSC30U-120L6 –a 100-240VAC –12VDC / 2.5A power adapter, and
•User Manual & software utilities on CD.

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2 Introduction
The Microtronix SD/HD/2K/4K-SDI Text & Graphics Overlay Inserter (PN: DX-4400-xx) is a high performance
single/dual input Video Text Inserter supporting alpha blended text overlay / on screen display (OSD) on
progressive, PsF and interlaced SD, HD, FHD, 2K and 4K video formats. It is designed for use in broadcast,
professional video recording studios and embedded video information applications requiring live insertion of
graphics and text streams onto a SDI video signal. Low-latency configurations enable the unit to operate with
less then one frame of video delay between the input and the output.
2.1 Text and Graphics Overlay OSD Features
Features of the overlay on screen display (OSD) include:
•ARM Linux graphics processor,
•User selectable database Savesets to store field information,
•Fields support Text, Rectangles, Lines, Circles, Ellipse and Image modes,
•Text scrolling and crawling for news feed applications,
•Text Field of up to 512 characters,
•Alpha blending of the text for smooth edges,
•Independent color selection of fields,
•Configurable background color of text fields,
•Transparency control,
•Independent ON/OFF control of fields,
•X-Y-Z position control, and
•Scale-able text sizes
Note: The microSD Card is shipped pre-installed in the unit since the DX-4400 operating system must be
loaded from the card to enable the unit to operate
Warning: When installing the microSD Card be careful that it is sliding into the card slot or else the card will fall
inside the unit requiring it to be opened to retrieve it.
2.2 Other Features
Other features include:
•User configuration of frame delay for video and ancillary data,,
•Supports ancillary data and VBI content,,
•Digital zoom (video scaling) of PiP input,
•Digital zoom (video scaling) of video paths in Zoom Dual TI.
•Low frame delay (less than one frame),
•Real-time clock with support of NTP & PTP protocols for use in time and date applications,
•Qt Meta Language (QML) supports enhanced user interface-centric applications
•MicroSD card storage of user configuration, text fields, images (PNG, JPG, BMP, etc.) and graphic
elements,
•User configuration of functions, and
•Web UI user interface.
•USB OTG (On-the-Go) Port can be mount a USB flash drive to upload files to transfer to the microSD Card
using standard OTG Micro USB to USB Male-to-Female Cable Adapter, (Microtronix PN: 811-USN-OTG).
Note: Not all features are supported across all video formats.

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2.3 User Connections
The user connects to the DX-4400 product using the RS-232 Control port, the USB Serial Port or through a raw
TCP/IP connection via the Ethernet port.. For more information on using these interfaces refer to Section 3.6
titled External Control of the DX-4400.
The raw TCP/IP connection is always available for external user control through Ethernet. For Serial Control, the
factory default connection is sets Serial Control to the RS-232 Control Port interface. To switch Serial Control to
the USB Serial Port requires the user to establish a connection to the Command Port (via either Telnet or through
the DB9 Serial port) and issue a Set Mode command to the unit per Table 6: Set Mode Command Syntax.
2.3.1 RS-232 Control Port
The RS-232 Control Port can be used to connect the DX-4400 to a computer to allow external control of text and
graphics overlay. For Serial Control, the factory default connection assigns the Serial Command Port to the
RS-232 Control Port interface.
A USB to DB9 RS-232 Serial Port Male-Male Adapter Kit (see Appendix B) is supplied to connect to the DB9
RS232 Serial port to a USB port on a PC. For more information refer to Appendix B.
2.3.2 USB Serial Port
The USB Serial Control Port can also be used to control the text overlay. It is a USB mini-B connector and has an
integral serial port set at 115,200 baud operation (8,N,1) and no flow control. The port interfaces to a PC with a
standard USB 2.0 –A to Mini-B (Male-Male) cable. Refer to section 3.6 External Control of the DX-4400 for more
information on the use of this port.
2.3.3 Ethernet Port
A user can control the DX-4400 over Ethernet via:
•a TCP Telnet client IP connection (using a Terminal Emulator) to the internal Command Port, (Refer to §
3.6.3.2 Default Static Network IP Address.)
•a TCP SSH connection to the Linux (Root) User port, or
•a TCP browser Web UI connection to the DX-4400 integrated web server. (Refer to § 5.1 Connecting to
the Web UI.)
The TCP Telnet connection is always available for use by the external user in addition to the Serial port
connection.
The RJ45 Ethernet port is a standard 10Base-T interface supporting data rates of 10/100Mbps and 1Gbps.
Note: The default static IP address is discussed in § 3.6.3.2 Default Static Network IP Address.
2.4 Hardware
The DX-4400 product is available in either a chassis with a 120/240VAC wall adaptor as shown in the Figures
below or optionally it can be purchased as an open-frame board for integration into an embedded video system.

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Figure 1: DX-4400 –SD/HD/2K/4K-SDI Text & Graphics Overlay Inserter Product
2.4.1 Enclosure Dimensions
The DX-4400 chassis enclosure has dimensions of (L x W x H) of 6.75" x 5.75" x 1.5" where the width dimension
applies to the ends with the connectors.
The DX-4400 OEM Board (PN: M6297-TI-2K or M6297-TI-4K) has dimensions of (L x W x H) of 6.0" x 5.25" x
1.125" where the width dimension applies to the side with the BNC connectors.
2.5 Power Requirements
The DX-4400 product draws up to a maximum of 1.5 amps from a regulated 12VDC 2.5A 30W 100-240VAC
50/60Hz power adapter.. To ensure EMC regulatory compliance, the negative (ground) input of the DC supply is
connected to frame ground.
The AC power adapter is shown in the figure below.
Figure 2: 12Vdc 2.5A 100-240VAC Power Adapter

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2.5.1 DC Power Connector
The DX-4400 product uses a chassis mounted 2-pin (male pins) secure circular bayonet locking connector made
by Switchcraft PN: 17282-2PG-300 (Digi-Key: SC1206-ND). The mating connector on the power adapter is a
Switchcraft PN: 16282-2SG-315 two-pin female socket connector (Digi-Key: SC2122-ND).
2.6 Environmental Operating Limits
The DX-4400 product is designed for the following ambient operating environment::
•Temperature Range: 0C to 40C
•Relative Humidity: 0 to 95% non-condensing.
The chassis is vented for heat dissipation and requires approximately 6" of physical clearance on the top and
vented sides to provide adequate air convection to ensure proper device cooling.

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3 Operation
3.1 Powering on the DX-4400
The DX-4400 unit operates from at 12VDC from the supplied 120/240VAC power adapter. Each time the
DX-4400 is powered on it requires the microSD Card installed in the card slot to enable it to boot the Linux
Operating System contained on the card. The unit is shipped from the factory with the micro SD Card pre-
installed in the card slot.
Warning: If it is necessary to install a microSD Card into the unit, be careful when sliding the card into the card
slot so as to not misalign the card to the card slot connector. Otherwise, the card may accidently fall
inside the unit and will require the chassis to be opened to retrieve the card.
3.2 Modes of Operation
The DX-4400 product has several selectable Modes of Operation. Each mode has different capabilities and
features. The available modes are:
1) Dual Text Inserter (Dual TI). In this mode the product provides two video channels with separate text
and graphics overlays for each channel. Each channel supports the SD, HD, and 3G modes listed in the
product specifications with ancillary data pass through.
2) Low Latency Dual Text Inserter (LDual TI). In this mode the product provides two video channels with
separate text and graphics overlays for each channel without frame buffers in the path. Each channel
supports the SD, HD, and 3G modes listed in the product specifications with ancillary data pass-through.
There is no SDI alpha blending.
3) Zoom Dual Text Inserter (ZDual TI). In this mode the product provides two video channels with separate
text and graphics overlays for each channel. Each channel supports the SD, HD, and 3G progressive
modes (no interlaced or PsF modes) listed in the product specifications without ancillary data pass-
through. Each channel supports separate zoom control.
4) Picture in Picture Text Inserter (PiP TI). This mode provides a single text inserter with a main input and
a secondary input. Both inputs have scaling capabilities to allow for use as Picture in Picture (PiP), split
screen or side by side configurations. The unit has a single text and graphics overlay and supports the
SD, HD, and 3G modes listed in the product specifications. Ancillary data from input 1 passes through the
unit to the output.
5) Low Latency Picture in Picture Text Inserter (LPiP TI). This mode provides a single text inserter with
less than one frame of delay from input 1 to the output. Input 1 does not support PiP or Zoom. Input 2
supports PiP and Zoom. Ancillary data is supported on Input 1.
6) Dual Link 4K Text Inserter (4K TI). The unit provides a text and graphics overlay for one channel of 4K
(Quad and 2SI mapped) video transported in the dual link modes listed in the product specifications.
Ancillary data pass through is NOT supported.
7) Low Latency Dual Link 4K Text Inserter (L4K TI). The unit provides a text and graphics overlay for one
channel of 4K (Quad and 2SI mapped) video transported in the dual link modes without frame buffers in
the video path. Ancillary data pass through is supported in this mode of operation.
8) Zoom 4K Dual Link 4K Text Inserter (Z4K TI). The unit provides a text and graphics overlay for one
channel of 4K (Quad or 2SI mapped) video transported in the dual link mode. For 2SI mapped video only,
the input can be zoomed. Ancillary data pass-through is supported in this mode of operation.
NOTE: Support for 4K video is an optional product upgrade and is not available in the base
product configuration.

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Within each mode of operation, the unit auto detects the format of the input video from the modes supported, and
outputs in the same format. Custom user configurations and parameters can be stored on the microSD Card file
system for auto restoration during power ON/OFF cycles.
The Mode of Operation can be changed by using the Set Mode (SM) Command described in § 3.7.1 Set Mode
Commands or via the Web UI as described in § 5.3.1 General Environment –Mode of Operation Page.
3.3 Default Configuration and Video Mode
The factory default startup configuration for the DX-4400 uses a database Saveset named "default" to store Fields
required to configure the unit for the default configuration. The default is to use the database on the SD flash card.
If you operate in a Mode that requires many commands –such as moving an image on the screen –you may
want to switch the Saveset to use an in-memory database to reduce flash writes. (See IM Command of Table 23:
Command Syntax for Saveset Default Values.) This will also speed up the operation.
When powered up in the factory default configuration, the unit will operate as a PiP TI and pass the primary SDI 1
video through to the two outputs with text and graphic overlay items added. The DX-4400 will automatically
output in the same video format as is detected at the SDI input.
If the input video format changes, the DX-4400 will momentarily switch off the output while the out format is
adjusted to match the input. When the input format is detected and the video (pixel) clock is locked to the source,
the video out path is enabled and the input video and ancillary data will appear at the output.
If the SDI input is disconnected, the unit continues to output in the last video format that was detected.
If there is no input signal (or if it cannot be properly detected), the DX-4400 operates in the default video mode
and outputs the overlay information on a black background. In the Dual TI, LDual TI, ZDual TI, and PiP TI
Modes, the video format will be 1920x1080p30. In the 4K TI and L4K TI Modes, the default video format will be
3840x2160p30 in quadrant mode.
3.4 OSD Layers
The DX-4400 uses a quad-core ARM Graphics Video Processor which supports two video paths shown in
Figure 3 with a graphics video layer mixed on top of each SDI video input.
Figure 3: DX-4400 Layer Order
The top layer is the ARM Graphics Overlay Video which is the output overlay generated from the ARM Graphics
Overlay Processor. This layer displays the Text, Graphic and Image Field information entered by the user using
Text, Graphic or Image Overlay Commands.
The 2nd layer is the SDI Video, and the 3rd layer is the Black Background.
The ordering of layers in the ARM video output is determined by their Z Layer number with the higher layer
numbers being at the top. If two Fields have pixels that occupy the same coordinates on the same Z-Layer, one
will overwrite the other. The Field are rendered in the order they were defined (Text first, Image second followed
by Graphic). The ID numbering assignments used for Text, Image and Graphic Fields are specific to each group.
When Graphic Fields on different Z Layers are placed at the same coordinates, they mix according to their
transparencies. When a Field item is fully visible (no alpha assignment), all content that is on the layers below it
will not be visible. When the Field is partly or fully transparent, it mixes with the layers below according to their
transparencies.

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3.5 LED Status Indicators
The location of the 5 LEDs is shown in the following two figures.
Figure 4: DC Power LED
Figure 5: SDI Input / Output Status LEDs
The operation of the SDI status LEDs is summarized in the table below.
Table 1: Description of SDI LED Status Indicators
LED
Color
Use
Description of LED Status
SDI 1 IN
Red
Valid Video
OFF: SDI 1 input has either no video, or an unsupported video format.
ON: A signal is detected on the input.
SDI 2 IN
Red
Valid Video
OFF: SDI 2 input has either no video, or an unsupported video format.
ON: A signal is detected on the input.
SDI 1 OUT
Red
Overlay Active
OFF: Arm Overlay off or not valid
ON: Arm Overlay on SDI video output 1.
SDI 2 OUT
Red
Overlay Active
OFF: Arm Overlay off or not valid
ON: Arm Overlay on SDI video output 2.
Power
Green
Power
ON: Power OK
3.6 External Control of the DX-4400
The DX-4400 has three methods for interfacing an external user to the Command Port used to control the
operation of the unit.
1) Network Control using a raw TCP/IP connection (to port 2121) over Ethernet from a Telnet or other
terminal emulation client running on a PC.
2) RS-232 Control using the DB9 connector labeled "RS-232 Control".
3) USB Serial Control using the type B USB port labeled "USB Serial Port".

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4) Web UI Control using a standard web browser and a TCP Ethernet connection. This method of control is
discussed in section (§) 5titled Using the Web UI.
To utilize Serial Control requires the user establish a connection via either the RS232 port or the USB Serial port.
The factory default connection sets Serial Control to the RS-232 Control Port interface.
To switch Serial Control from the RS-232 Control Port to the USB Serial Port requires the user to establish a
connection to the internal Command Port (via either Network Control port or through the DB9 Serial port) and
issue a Set Mode Command to the unit per Table 6: Set Mode Command Syntax.
Alternately, the user can use Network Control via a TCP/IP connection to the Command Port since it is always
available for external user control through a TCP Ethernet connection.
Note: For the examples provided in the following sections, the Commands are executed via a Serial (RS232
or USB) connection or a Network TCP/IP connection to the Control Port of DX-4400 unit.
Warning: Only one Network Control port user connection can be active at a time.
3.6.1 Serial Control Mode of Operation
When Serial Control is used, the DX-4400 is controlled via Commands sent to the Command Port via either the
RS-232 Serial Control Port or the USB Serial Port using a terminal emulator program on a PC. Refer to
Appendix B, section Establishing RS-232 Serial Communication to a PC page 100 for the recommended settings
for the PuTTY terminal emulator.
Note: The Serial COM port of the computer connected to the DX-4400 should be configured for: 115,200
baud, 8-bit data, no parity, 1 stop bit and no XON/XOFF flow control.
The Command Port acknowledgement codes (supplied from the DX-4400 and received by the PC) are listed in
Table 2 below.
3.6.1.1 USB 2.0 to RS-232 Serial Port Adapter Kit
Since most PC no longer come with a RS-232 Serial port, the DX-4400 product is supplied with a USB 2.0 to
DB9 RS-232 Serial Port Adapter Kit (PN: 811-USB-RS232 Kit) to connect the DB9F Serial Port on the unit to a
USB 2.0 port of a PC or laptop. The Kit consists of a USB 2.0 to RS232 DB9 Serial Adapter Cable (StarTech PN:
ICUSB232V2) and a 6 foot male to female DB9 RS232 Serial cable. Refer to Appendix B titled Establishing
User Connections to the DX-4400 Product for more information.
3.6.1.2 USB Serial Port
The USB Serial Control Port can also be used to control the text overlay. The port interfaces to a PC with a
standard USB 2.0 –A to Mini-B (Male-Male) cable included with the product.
Since by default, the Serial Control Port is mapped to the RS-232 Serial port, to use the USB interface it is
necessary to establish a connection to the Command Port (via either Network Control port or through the DB9
Serial port) and issue a Set Mode command to the unit per Table 6: Set Mode Command Syntax to switch Serial
Control to the USB Serial Port. \
3.6.2 Network Control Using Raw TC/IP
The Network Control connection is used to sent commands to the DX-4400 over Ethernet, using a terminal
emulator (Telnet, PuTTY) application to TCP port number 2121. The Ethernet address is either assigned via
DHCP or by static IP address assignment (default 10.1.1.230/8)
From either a Windows command prompt or Linux command line, you can establish a Network Control user
connection to the Command Port of the DX-4400 using the following commands:
Window Client
Linux Client

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open <IP Address> 2121
telnet <IP Address> 2121
nc <IP Address> 2121
telnet <IP Address> 2121
Note: Refer to sections 3.6.3.2 or 3.6.3.3 below for information on the default static network IP address or
the DHCP assigned IP address.
TIP: To confirm the connection to the Command Port of the DX-4400, type RV to cause the unit to display
the revision of the software and the MAC & IP address.
Note: On a Windows PC, a Telnet Client is available from a Command Prompt window.
Warning: In Windows 7 and 10 the Telnet Client is turned off by default. To get more information on enabling
the Telnet Client, search in Google with the term "Enabling Telnet Client on Windows".
TIP: PuTTY is a free PC terminal emulator utility which supports Telnet, SSH and Serial connections. Refer
to section Appendix B:, titled Establishing TCP/IP Connection to the DX-4400 Product form more
information.
The Command Port acknowledgement codes (i.e. the DX-4400 response to user commands) are listed in Table 2
below.
3.6.3 Network Control Using Web UI
The DX-4400 supports a web server which offers the user the ability to configure, manage and maintain the unit
using a web browser. All of the features available via the Serial Control interface or the Network Control interface
(TCP/IP) are available through the Web UI.
3.6.3.1 Connecting to the Web UI
To access the Web UI is it necessary to make an http connection using the IP address by the local DHCP network
server. For example: http://10.1.1.42 (Refer to § 3.6.3.3 titled DHCP Assignment of Network IP Address below
for more information on obtaining the IP address.)
At the sign in (login) prompt enter the default Username and Password of admin and admin. The DX-4400
Web UI home page is shown below. For more information on using the Web UI refer to § 5 Using the Web UI.