MICROTRONIX DX-2200-SW-02 User manual

4056 Meadowbrook Drive, Unit 126
London, ON Canada N6L 1E3
www.microtronix.com
MICROTRONIX
DX-2200
DUAL-VIEW
2X1SDI VIDEO SWITCHER
USER MANUAL V3.61

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This User Manual provides basic information about using the Microtronix DX-2200
Dual-view 2x1 SDI Video Switcher, (Model PN: DX-2200-SW-02). The following
table shows the document revision history.
Date
Rev.
Description
Jan. 10, 2012
1.00
Initial release
Nov. 12, 2012
1.01
Added Digital zoom feature.
Jan. 09, 2013
1.02
Added commands to show or hide a text string (this is in addition to the existing
command to toggle visibility).
Feb. 14, 2013
2.00
Revised Serial Command structure.
Added 1080i and 1080p video resolutions.
March 1, 2013
2.10
Added NTSC and PAL resolutions.
Added text background & overlay transparency.
Added ‘O’ commands for output mode control.
Serial control mode changed to always be active.
March 12,
2013
2.20
Added new commands to configure the control DIP & Toggle switches and changed
the default DIP switch settings.
Removed the ML command.
Added font size 003 & 004. Add text field reset commands.
Strings in RS232 commands must now be enclosed in quotations.
Fixed a bug with I1, I2 commands in Overlay mode.
Added preset PiP sizes and control of x, y gap.
Increased number of text fields to 12.
Changes to RS232 input to support comment lines and ignore leading white spaces.
May 17, 2013
2.30
Add Mode 7 –two images vertically stacked
June 27, 2013
2.31
Added new section & Table 9: Low Level Text Control Commands & Codes
Aug 14, 2013
2.41
Added new commands for a frame number counter text overlay.
Added a three digit ‘Annn’ command to control transparency with greater resolution.
Aug 26, 2013
2.50
Added alpha blending transition effect in Alpha Blended Overlay Mode. (Table 6)
Added additional Frame Counter modes of operation.
Aug 30, 2013
2.51
Added vertical and horizontal split screen in Alpha Blended Overlay Mode.
Changed transition commands from T to TP…
Added programmable size/position for the primary and secondary layers in Alpha
Blended Overlay Mode
Sep 17, 2013
3.00
Added zoom control commands for center position and window selection.
Changed zoom to be controlled for selected/non-selected input instead of by input
connector number.
Added alpha blending effects for secondary layer.
Changed second alpha set by TPB / TSB commands to apply to both transition
effects and split screen modes.
For Mode 5, changed ‘I1’,’I2’,’IT’ to switch inputs and ‘T’ to apply inverse alpha for
visibility reversal of the two inputs.
Added support for setting size in Alpha Blended mode in percent.
Nov 28, 2013
3.01
Fix a problem causing improper configuration or no video output when the unit
powers up with a saved configuration and the video inputs have been connected
before power up.
Add S0, S1, ST commands.
Document
Revision History

DX-2200 –Dual-view 2x1 SDI Video Switcher
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Mar 18, 2014
3.10
Add firmware update capability over RS232.
Add SnnSN, SnnHN, SnnVN commands to change text field visibility without updating
the display.
Changes to command parsing.
Nov 14, 2014
3.20
Add support for Rev E PCB.
Fonts are loaded at first use instead of power up so the unit starts faster.
Add fonts containing selected Wingding characters
Add selected extended ASCII characters to the Tahoma fonts.
Feb 11, 2015
3.50
Add new 'S' commands to support rectangle drawing and graphic images on the
overlay.
Add section about the DX-2200 Uploader.
Add the 'L' commands to control the overlay layer.
Add baud rate change command.
Product now supports 48 fields on the overlay layer instead of 12.
Add more information about image field transparency and background.
Jun 03, 2014
3.60
Add additional Tahoma fonts
Add capability for G and S commands to operate on a range of fields
Add S/GnnNm and S/GnnJmm commands.
Jun 25, 2014
3.61
Add additional Tahoma size 48 fonts and Bitstream Vera Mono Fonts
Updated Model number due addition of SDI Loop Output port and new enclosure
Update pictures of the enclosure and the DX-2200 board assembly
E-mail
Sales Information: [e-mail]
Support Information: [e-mail]
Website
General Website: http://www.microtronix.com
FTP Upload Site: http://microtronix.leapfile.com
Phone Numbers
General: [phone]-0091
How to Contact
Microtronix

DX-2200 –Dual-view 2x1 SDI Video Switcher
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Table of Contents
Document Revision History..............................................................................................................................2
How to Contact Microtronix..............................................................................................................................3
E-mail............................................................................................................................................................3
Website.........................................................................................................................................................3
Phone Numbers............................................................................................................................................3
Features...........................................................................................................................................................8
Introduction ......................................................................................................................................................9
Text Overlay OSD Features.........................................................................................................................9
Hardware........................................................................................................................................................10
Power Requirements..................................................................................................................................10
Operation .......................................................................................................................................................10
Display Modes............................................................................................................................................10
Display Mode 1: Full-screen 2x1 Switcher .............................................................................................11
Display Mode 2: Picture-in-Picture .........................................................................................................11
Display Mode 3: Dual view, Picture-and-Picture ....................................................................................11
Display Mode 4: Split Screen..................................................................................................................11
Display Mode 5: Alpha Blended Overlay................................................................................................11
Display Mode 6: Standby Switcher.........................................................................................................12
Display Mode 7: Dual-view, Vertically Stacked ......................................................................................12
Sample Outputs..........................................................................................................................................12
Default Startup Configuration.....................................................................................................................14
LED Status Indicators.................................................................................................................................14
Output Video Format..................................................................................................................................15
Video Output Modes 1 & 3......................................................................................................................15
Video Output Mode 2..............................................................................................................................16
Default Output Video Mode ....................................................................................................................16
Input Video Format.....................................................................................................................................16
Video Buffering and Delay..........................................................................................................................16
SERIAL & MANUAL Control.......................................................................................................................17
SERIAL Mode of Operation ....................................................................................................................17
Serial Port Control Commands ...........................................................................................................17
Input Selection SERIAL Commands...................................................................................................18
Input Auto Switch SERIAL Command.................................................................................................19
Alpha Blending Effects SERIAL Commands.......................................................................................20
Mode Control SERIAL Command.......................................................................................................24
Alpha Blended Overlay Size and Position SERIAL Commands.........................................................24
Picture-in-Picture Position & Size SERIAL Commands......................................................................27
Alpha Blending Transparency SERIAL Command .............................................................................28
Baud Rate SERIAL Command............................................................................................................30
Graphic Overlay SERIAL Commands.................................................................................................30
Sample Text Field Commands............................................................................................................47
Low Level Text Control Commands....................................................................................................50
Frame Counter Overlay SERIAL Commands .....................................................................................51
Overlay Control SERIAL Commands..................................................................................................57
Layer Control SERIAL Commands .....................................................................................................57
Digital Zoom Command ......................................................................................................................60
User Interface Commands ..................................................................................................................63
User Interface Function Configuration ................................................................................................63
Resetting DX-2200 Switches to Factory Default Configuration ..........................................................64
Recommendations for DX-2200 Configuration...................................................................................65
DX-2200 Example Configuration Command File................................................................................67
Output Video Format Command.........................................................................................................68
Configuration Flash Serial Commands ...............................................................................................70
Other Serial Command Codes............................................................................................................70
MANUAL Mode of Operation..................................................................................................................71

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Toggle Switch......................................................................................................................................71
DIP Switch Settings.............................................................................................................................72
DX2200 Software Upload Utility.....................................................................................................................72
Firmware Update Procedure ......................................................................................................................72
Uploading Images.......................................................................................................................................72
Wingdings Font Table....................................................................................................................................74
Extended ASCII Fonts....................................................................................................................................75
Design Customizations ..................................................................................................................................75
One Year Warranty........................................................................................................................................76
Hardware....................................................................................................................................................76
Firmware.....................................................................................................................................................76
Limited Liability...........................................................................................................................................76
Appendix A: Updating IP Core On-Board Flash ............................................................................................77
Programming the Flash Device..................................................................................................................77
Appendix B: Internal Circuit Board Description..............................................................................................78
SDI Video Interfaces...................................................................................................................................78
RS-232 Serial Control Port .....................................................................................................................79
RS-232 3-Pin Header, J2....................................................................................................................79
Power Requirements..................................................................................................................................79
Power Connectors ..................................................................................................................................79
JTAG Header..........................................................................................................................................79
Reset Pushbutton SW1..............................................................................................................................80
Board Dimensions......................................................................................................................................80
Appendix C: Optional USB to RS-232 Serial Port Adapter............................................................................81
Appendix D: Regulatory Compliance Information..........................................................................................82
Industry Canada (IC)..................................................................................................................................82
Federal Communications Commission (FCC) Declaration of Conformity..................................................82
CE Declaration of Conformity.....................................................................................................................83

DX-2200 –Dual-view 2x1 SDI Video Switcher
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Listing of Tables
Table 1: Description of LED Status Indicators................................................................................................15
Table 2: Serial Port Command Acknowledgement Codes..............................................................................18
Table 3: Function of the Inputs For Each Display Mode.................................................................................18
Table 4: Input Selection SERIAL Command Codes .......................................................................................19
Table 5: Input Auto Switch Serial Command Codes.......................................................................................20
Table 6: Alpha Blended Overlay Transition Effects ........................................................................................21
Table 7: Mode Control SERIAL Command Codes .........................................................................................24
Table 8: Alpha Blended Size and Position Control SERIAL Command Codes..............................................25
Table 9: PiP Control Serial Command Codes.................................................................................................28
Table 10: Transparency SERIAL Command Codes.......................................................................................29
Table 11: Alpha Blended Overlay Mode Transparency SERIAL Command Codes.......................................29
Table 12: Text and Symbol Fonts...................................................................................................................34
Table 13: Graphic Overlay SERIAL Command Codes...................................................................................42
Table 14: Low Level Text Command Codes...................................................................................................50
Table 15: Frame Counter Overlay SERIAL Command Codes .......................................................................55
Table 16: Overlay Control SERIAL Command Codes....................................................................................57
Table 17: Layer Control SERIAL Command Codes .......................................................................................59
Table 18: Digital Zoom Command Codes.......................................................................................................61
Table 19: User Interface Command Codes ....................................................................................................66
Table 20: Output Video Format Command Codes .........................................................................................69
Table 21: Flash Serial Command Codes........................................................................................................70
Table 22: Other Serial Command Codes........................................................................................................70
Table 23: Operation of 2-Position Momentary Toggle Switch ........................................................................71
Table 24: Operation of the 4-Position DIP Switch ..........................................................................................72
Table 25: Windings Character Table ..............................................................................................................74
Table 26: Extended ASCII Character Table ...................................................................................................75
Table 27: RS-232 Serial Control Port DB9 Pin Assignments .........................................................................79
Table 28: RS-232 3-Pin Header, J2................................................................................................................79

DX-2200 –Dual-view 2x1 SDI Video Switcher
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Listing of Figures
Figure 1: DX-2200 –Dual-view 2x1 SDI Video Switcher................................................................................10
Figure 2: Digital Zoom PiP..............................................................................................................................12
Figure 3: Dual-view –Custom Picture-and-Picture display with text and time code Frame Counter.............13
Figure 4: Dual-view –Vertically Stacked with text OSD .................................................................................13
Figure 5: Alpha Blended PiP with Text Overlay OSD.....................................................................................13
Figure 6: SDI Input LEDs................................................................................................................................14
Figure 7: SDI Out & Power LEDs....................................................................................................................14
Figure 8: Alpha Blended Vertical Split column 400 –Example 1a .................................................................23
Figure 9: Alpha Blended Vertical Split column 900 –Example 1b .................................................................23
Figure 10: Alpha Blended with scaling –Example 1a.....................................................................................26
Figure 11: Alpha Blended Vertical split with frame counter –Example 1b.....................................................26
Figure 12: Samples of active text and graphic logo........................................................................................33
Figure 13: Samples of transparent text and background................................................................................34
Figure 14: Sample of the available Tahoma font sizes...................................................................................36
Figure 15: Character set - codes 20-7F and A0-FF........................................................................................36
Figure 16: Sample of Rectangle, Target Marker and Text..............................................................................42
Figure 17: Sample of Corner Markers, Target and Text.................................................................................42
Figure 18: Example 1 - red text OSD with white background.........................................................................48
Figure 19: Example 2 –sample of default text ...............................................................................................49
Figure 20: Frame Counter text display –Example 2 ......................................................................................54
Figure 21: Frame Counter text display –Example 3 ......................................................................................54
Figure 22: JTAG Cable Connection................................................................................................................77
Figure 23: DX-2200 –Dual-view 2x1 SDI Switcher Board .............................................................................78
Figure 24: USB to DB9 RS-232 Serial Port Adapter Kit .................................................................................81

DX-2200 –Dual-view 2x1 SDI Video Switcher
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The key hardware features of the DX-2200 –Dual-view 2x1 SDI Video
Switcher (Model PN: DX-2200-SW-02) includes:
Two 75ΩSD/HD-SDI input ports
Two 75ΩSD/HD-SDI output ports
oOne the Switcher output
oOne loop through output of SDI input port 1
One DB9, RS-232 Serial Control Port
Note: With custom DX-2200 firmware, the RTS & CTS modem signals on
the DB9 Serial Port can be configured to operate as a second Serial
Data Port and function as RS-232 Receiver and Transmitter signals.
A custom serial “Y” cable is used to bring out the two ports.
Supported functionality:
Digital switching between 2 SDI inputs using switches or a serial control
port commands
Glitch-free video switching between SDI inputs and modes of operation
Video formats:
o720p @ 25 / 29.97 / 30 / 50 / 59.94 / 60 fps
o1080i @ 25 / 29.97 / 30 fps
o1080p @ 23.98 / 24 / 25 / 29.97 / 30 fps
o1080psf @ 23.98 / 24 / 25 / 29.97 / 30 fps
oNTSC @ 59.94 fps
oPAL @ 50 fps
Video Modes:
o2x1 (Full-screen) Switcher
oAlpha blended Picture-in-Picture with size and position control,
oDual view, Picture-and-Picture,
oSplit screen,
oAlpha blended overlay, and
oStandby switcher.
Text overlay OSD:
oUp to 48 independent Graphic Fields
oFields support Text, Rectangle, Corner Marker, Target Marker, and
Image Field types.
oFilled or open rectangles
oSize, color, transparency and position control
oConfigurable background color for text
oAlpha blended text and background
oAlpha blending of graphic fields
Output video Frame Counter text overlay display,
Alpha blended video switching transition effects,
Digital Zoom: 28 steps of 0.25 from 1x to 8x,
User defined operation of DIP & Toggle switches
NOTE: The text/graphics overlay OSD is supported in progressive but not in
either interlaced or Progressive segmented Frame (PsF) video formats.
Features

DX-2200 –Dual-view 2x1 SDI Video Switcher
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The Microtronix DX-2200 –Dual-view 2x1 SDI Video Switcher (Model Part
Number: DX-2200-SW-02) is a high performance dual input SDI Video Switcher
supporting enhanced video capabilities including: 2x1 glitch-free video switching,
picture-in-picture (PiP), picture-and-picture (PAP), Split-Screen, text overlay / on
screen display (OSD), Alpha Blending and Digital Zoom. The product is available
as a stand-alone product in an aluminum enclosure or as an open printed circuit
board for incorporation into embedded video system. The unit is designed for use
in broadcast, professional video recording and high-end surveillance applications.
To ensure glitch-free continuous/artifact free video output, the two input SDI video
streams are firstly frame synchronized then switched during the vertical interval
period when a frame is complete. Additional frame buffers are used to eliminate
artifacts which can occur when operating in a PiP or PAP mode during which
scalers or clippers are being used.
When processing interlaced video, a field detector is used to synchronize the input
frame buffers and video processing to ensure the correct alignment of the video
fields when switching between the video streams or swapping PiP or PAP
displays. The output video format can be the same as the format detect on the
SDI input 1 (SDI-1) video source, or can be programmed independently.
The product supports synchronized switching of SD / HD SDI video formats. Text
overlay is supported on progressive video only.
The units can be configured to retain the user configuration in on-board flash
during power ON / OFF power cycles.
Text Overlay OSD Features
The DX-2200 supports text overlay OSD in all display modes of operation.
Features of the text overlay OSD include:
1) Display of 48 independent Fields of up to 96 characters.
2) Alpha blending of the text on the video screen.
3) Active Frame Counter.
4) Independent color selection of text fields.
5) Configurable background color.
6) Opacity control.
7) Independent ON/OFF control of text fields.
8) X-Y position control.
9) Permanent retention of text fields in flash memory.
10) Eight font / text size combinations.
The text is supplied to the DX-2200 Switcher through the RS-232 serial port. The
user can optionally store the text fields in the on-board flash in which case they will
be retained power ON/OFF power cycles.
NOTE: The Text/graphic overlay feature is supported in progressive video formats
only.
Introduction

DX-2200 –Dual-view 2x1 SDI Video Switcher
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The DX-2200 –Dual-view 2x1 SDI Video Switcher is available as a stand-alone
product supplied in an enclosure as show in Figure 1 below or as an open-frame
board (for building into embedded video system) as shown in Figure 23 shown in
Appendix B.
Figure 1: DX-2200 –Dual-view 2x1 SDI Video Switcher
Power Requirements
The DX-2200 Switcher is powered from a standard 5.5mm center positive 5-12Vdc
1.3A 10W (120/240VAC) regulated switching power adapter.
Display Modes
The DX-2200 Switcher supports the display of the SDI video either full-screen or in
a variety of dual-viewer window modes. The display modes include:
oMode 1: Full-screen 2x1 Switcher
oMode 2: Picture-in-Picture,
oMode 3: Dual view, Picture-and-Picture –side-by-side,
oMode 4: Split screen,
oMode 5: Alpha blended overlay, and
oMode 6: Standby Switcher.
oMode 7: Dual view, vertically stacked
Hardware
Operation