Miranda DVI-Ramp2 User Manual Download Page 16

10 

 |  DVI-Ramp

2

 / DVI-Ramp

2

 DSK   

 

2.4  Control Interface  

 
The DVI-Ramp

2

 has no local controls beyond the power switch and the Reset pushbutton. All adjustment is 

done using a software interface running on a computer connected to one of the three control ports.  
 
Miranda has developed software for this purpose. The software and documentation can be downloaded from 
Miranda’s website at www.miranda.com.  The software includes Context-Sensitive Help. 
 
Alternatively, users may create their own software. Programming documentation is available on demand. 
 

Note: 

Connecting to an RS-232 device or network 

The "RS-232/GPI" RJ45 connector is used to preserve space on a busy panel while 
accommodating RS-232 and GPI interfaces. The RS-232 interface specifies a DE-9S connector, 
so if you are using this interface you may require a DE-9S-to-RJ45 adapter cable. The pin-out of 
the "RS-232/GPI" connector is shown below: 
 

1: GPI-IN2
2: GPI-OUT2
3: GND 

(also GPI-OUT2_GND)

4: GPI-OUT1
5: GPI-OUT1_GND
6: GPI-IN1
7: DVI-Ramp2 RS-232_RX
8: DVI-Ramp2 RS-232_TX

DVI-Ramp 2

Computer

RJ-45

DE-9

pin 5: Ground

pin 3: TX out of computer
pin 2: RX into computer

1

8

 

 

Figure 2.3

  RS-232 / GPI RJ45 connector pin-out

 

3 Operation 

The DVI-Ramp

2

 has no local controls beyond the power switch and the reset pushbutton. Operational 

concerns are outlined here, but for detailed operating instructions, see the documentation at 

www.miranda.com

3.1 Powering 

Up 

The power switch is located on the rear panel of the DVI-Ramp

2

, just above the power connector. Connect 

the provided power supply to the power connector and set the switch to ON  (I). 

3.2  Front Panel Indicators and Controls 

There are five Input Status LEDs which are mounted on the front edge of the DVI-Ramp

2

’s circuit board, and 

which can be seen through holes in the front panel of the case. The DVI-Ramp

2

 DSK model has an extra 

LED for the video input status. 
 

Summary of Contents for DVI-Ramp2

Page 1: ...I Ramp2 DSK User s Manual M807 9900 202 26 Jul 2007 Miranda Technologies Inc 3499 Douglas B Floreani St Laurent Québec Canada H4S 1Y6 Tel 514 333 1772 Fax 514 333 9828 www miranda com 2007 Miranda Technologies Inc ...

Page 2: ...er all servicing to qualified service personnel Servicing should be done in a static free environment Electromagnetic Compatibility This equipment has been tested for verification of compliance with FCC Part 15 Subpart B class A requirements for Digital Devices This equipment complies with the requirements of EN 55022 Class A Electromagnetic Emissions EN 61000 3 2 3 3 Disturbance in Supply Systems...

Page 3: ...rt of any other product or collection of products or create derivative works derived from the Software g allow others to make or obtain copies of the Software h use the Software for any purpose other than the Purpose 4 Upgrades MIRANDA may from time to time make available updates enhancements and or modifications to the Software and may provide such updates to User but is under no obligation to do...

Page 4: ...port No support or maintenance services are included in this License and MIRANDA is under no obligation to provide User with any technical support or assistance of any kind In the event that User requests the support or assistance of MIRANDA and that MIRANDA accepts at its sole discretion to perform support or assistance services MIRANDA shall have no liability whatsoever to User in connection wit...

Page 5: ...tions 5 2 Installation 8 2 1 Unpacking 8 2 2 Mechanical Installation 8 2 3 Connections 9 2 4 Control Interface 10 3 Operation 10 3 1 Powering Up 10 3 2 Front Panel Indicators and Controls 10 3 3 Synchronizing the DVI Ramp2 and the graphics card 12 3 3 1 Frame sync graphics card without reference 12 3 3 2 Genlock graphics card with reference 13 3 4 DVI format considerations 13 4 Technical Specifica...

Page 6: ...DVI Ramp2 DVI Ramp2 DSK ...

Page 7: ...randa com for updated information about new features that have been added to this product since the release of this document The unit features many synchronization modes including frame sync genlock and free run Configuration and control of the DVI Ramp2 is via USB RS 232 or Ethernet Firmware upgrades are done through RS 232 or USB 1 2 Features Graphic to HD SD video interface with the following o...

Page 8: ...2 DVI Ramp2 DVI Ramp2 DSK 1 3 Functional Block Diagrams Figure 1 1a DVI Ramp2 Functional Block Diagram ...

Page 9: ...DVI Ramp2 DVI Ramp2 DSK 3 Figure 1 1b DVI Ramp2 DSK Functional Block Diagram ...

Page 10: ...4 DVI Ramp2 DVI Ramp2 DSK 1 4 Front and Rear Panel views Figure 1 2a DVI Ramp2 Front and Rear panels Figure 1 2b DVI Ramp2 DSK Front and Rear panels ...

Page 11: ... source images The HD SD SDI output can include the entire graphic image or a window within the image so that unwanted graphic elements from the computer screen can be excluded For a clean presentation the DVI Ramp2 and the computer s graphic card should be locked on the same reference signal to achieve the highest quality For this application the DVI Ramp2 can be controlled by software available ...

Page 12: ...eground output The KEY window is converted to an SD HD SDI Alpha output These outputs with an appropriate background signal can be fed to a downstream keyer For a clean presentation the DVI Ramp2 and the computer s graphic card should be locked on the same reference signal to achieve the highest quality For this application the DVI Ramp2 can be controlled by software available at www miranda com o...

Page 13: ...ACKGROUND image When the KEY signal is white the keyer outputs the FILL image With intermediate grey levels of the KEY signal the keyer outputs a weighted sum of the FILL and BACKGROUND Through software the mixing polarity can be inverted reverse interpretation of the black and white levels of the KEY signal In this application the DVI Ramp2 DSK should be locked to the video input BACKGROUND For a...

Page 14: ...h feet on the bottom suitable for installation on a desk or tabletop The DVI Ramp2 is sized so that two DVI Ramp2 units can be installed side by side on a 1 RU tray for rack mounting Figure 2 1 Installing two DVI Ramp2 units on a 1 RU tray TRAY 120 The rear panel of the DVI Ramp2 includes a threaded connection point for a mounting screw left side of the rear panel see figure 2 2 so that the device...

Page 15: ...nd DVI D IN B DVI connectors 1 HD SD reference input and passive loop through BNC connectors 2 DVI outputs DVI D OUT A and DVI D OUT B DVI connectors 4 HD SD SDI outputs BNC connectors 1 HD SD SDI input BNC connector for DSK model ONLY For optimum performance high quality DVI cables should be used One recommended cable model is D 766 from Cable4PC www cable4pc com Communication connections Externa...

Page 16: ...pter cable The pin out of the RS 232 GPI connector is shown below 1 GPI IN2 2 GPI OUT2 3 GND also GPI OUT2_GND 4 GPI OUT1 5 GPI OUT1_GND 6 GPI IN1 7 DVI Ramp2 RS 232_RX 8 DVI Ramp2 RS 232_TX DVI Ramp 2 Computer RJ 45 DE 9 pin 5 Ground pin 3 TX out of computer pin 2 RX into computer 1 8 Figure 2 3 RS 232 GPI RJ45 connector pin out 3 Operation The DVI Ramp2 has no local controls beyond the power swi...

Page 17: ...is free running GREEN FLASHING when unit is programmed to be free running but a valid reference signal is present ORANGE unit is programmed to be free running and an unknown reference signal is present OFF when unit is programmed to be free running and no reference signal is present 4 ETH OFF no link GREEN link available from PHY ORANGE FLASHING transmitting from PHY At power up this LED will be G...

Page 18: ...t This ensures that the input of the DVI Ramp2 will mimic the display that is connected to its DVI output o Settings on DVI D OUT A are copied to DVI D IN A o Settings on DVI D OUT B are copied to DVI D IN B Use a bent paper clip or equivalent thin wire to activate the RESET button through the hole in the front panel 3 3 Synchronizing the DVI Ramp2 and the graphics card The DVI Ramp2 processes the...

Page 19: ...the DVI Ramp2 When the frame sync function is ON the DVI refresh rate can deviate from the suggested one but will cause drop repeat of frames at a rate proportional to the deviation 2 For interlaced scan formats the refresh rate is specified in terms of field rate Thus a refresh rate of 59 94 fields per second is specified as 59 94i 3 When the recommended DVI frame rate is twice the SDI frame rate...

Page 20: ...TE 274M SMPTE 296M Tri Level Sync RETURN LOSS 35 dB up to 5 75 MHz CONNECTORS 75 Ω BNC OUTPUT SD HD SDI x4 SIGNAL SMPTE 292M 1 485 1 485 1 001 Gbps and SMPTE 259 C 270 Mbps FORMATS SD 525 and 625 lines HD 1920x1080i 50 59 94 and 60 fields per seconds HD 1920x1080psf 23 98 and 24 frames per seconds HD 1920x1080p 23 98 24 and 25 frames per seconds HD 1280x720p 50 59 94 and 60 frames per seconds RETU...

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