Vision V40-10HDMI User manual

V40-10HDMI
HDMI to DVB-T HD MODULATOR
Operation Manual

1. IMPORTANT SAFETY PRECAUTIONS
READ THE FOLLOWING WARNINGS BEFORE YOU USE YOUR DEVICE
To avoid electric shock and prevent fire it is important to read the following instructions:-
● Only power this modulator with a Vision V40-125P 12V power supply.
● To disconnect the modulator from the mains completely, disconnect external power supply from the mains socket.
● The mains socket must be easily accessible.
● Disconnect the external power supply from the mains when the unit is not in use for long periods of time or during
storms.
● Any repairs must be made by qualified personnel.
● Do not expose the modulator to liquids, moisture or areas of high humidity.
● Avoid placing the modulator next to central heating components or a hot water tank.
● Do not plug/unplug the external power supply with wet hands.
● Do not place naked flames on or near the modulator.
● If the modulator has been kept in cold conditions for a long time, allow it to warm up for at least two hours before
connecting the power.
● Do not insert any objects into ventilation openings.
● Do not allow roof insulation or textiles to cover any ventilation slots.
● Only mount the modulator in vertical position with the RF connector at the bottom.
● Always allow at least 10cm of free space around all sides of the modulator to aid ventilation.
Installation / Storage
●This unit contains sensitive, high precision pieces of electronics. To ensure optimum performance and avoid
damage, do not store this unit in any location where it may collect dirt, dust, lint, etc.
•Do not expose it to extreme heat or cold (e.g. in direct sunlight, near a heater or in a car during the day).
•Place the unit securely to avoid shock or falling.
● Before moving the unit, always unplug all cords first.
•The modulator is very sensitive to static. Always connect all input and output cables before powering the unit.
● In the case of malfunction, unplug the external power supply from the mains.
● Before connecting the unit to other electronic devices, always switch off and unplug all devices from the mains.
● Do not spill liquid on the unit. Do not use any diluents or volatile liquid to clean the unit. Disconnect the power and
use a soft slightly damp cloth allowing the unit to dry completely before re-powering.
● Do not step on or place heavy objects on top of the unit. To avoid hardware damage, handle all buttons, connectors
and switches gently.

2. INTRODUCTION
Congratulations on purchasing the V40-10HDMI. You now own a high quality, professional DVB-T HD modulator. To get
the most out of your purchase, please take the time to carefully read through this manual.
3. INSTRUCTIONS
3.1 DESCRIPTION
The V40-10HDMI is a high quality DVB-T professional modulator which accepts one HDMI input signal and converts it
into one RF DVB-T channel on its output. The excellent picture (Full HD 1920*1080-30p) and modulation quality
(MER~35 dB) renders the V40-10HDMI an ideal solution for distributing SD/HD digital signals from sources such as a
DVD player, Set-Top-Box or camera in an MATV network using the DVB-T technology.
The user has the ability to control the device by either using the onboard L.E.D - SSD (L.E.D Seven Segment Display)
interface and keypad for quick installation or by using the USB interface with the appropriate software accompanying the
V40-10HDMI for advanced programming.
Finally, the V40-10HDMI metal case provides excellent electromagnetic shielding as well as great temperature dissipation
and rigidity.
3.2 FEATURES
●High quality and performance
●Very clean RF spectrum
●MER value ~ 35 dB
●RF output frequencies 174...862 MHz
●H.264 HD encoder bitrate 1-19 Mbps
●Very friendly user interface for quick installation
●USB interface for advanced programming
●External power supply
3.2.1 Auto-reset functions and watchdog
During the normal operation of the V40-10HDMI, the main CPU monitors all the internal parts in order to ensure that the
device works normally. In case of an internal error or module failure, the V40-10HDMI immediately initiates the recovery
procedure by resetting the appropriate module or the device. Finally, watchdog timers ensure that the device will be reset
in case of CPU failure.
3.2.2 Buttons lock-mechanism
The V40-10HDMI will lock the functionality of its buttons after 5 min idle time to avoid of being pushed accidentally. Two
red dots on the SSD notify the user that the button interface is locked. To unlock it, the user must press simultaneously
the UP + DOWN buttons for 5 seconds.
3.2.3 Digital attenuator
The V40-10HDMI has an embedded digital attenuator. The user is able to select between three different attenuation steps
as follows:
1. 0 dB attenuation (Output level: 90 dBμV) SSD will display: “00”
2. 10 dB attenuation (Output level: 80 dBμV) SSD will display: “10”
3. 25 dB attenuation (Output level: 65 dBμV) SSD will display: “25”
3.2.4 HDCP ON/OFF function
By pressing the “Channel / Profile” button for more than 5 sec the user enables the HDCP ON/OFF function. The SSD will
display this status as follows:
1. H1 : Indicating that the HDCP is ON
2. H0 : Indicating that the HDCP is OFF
Using the Up/Down buttons the user is able to select one of the above status to enable/disable the HDCP function. The
V40-10HDMI will exit from the current functionality after being idle for more than 2-3 sec.

3.2.5 USB interface for advance programming
The V40-10HDMI provides a USB interface with the appropriate software for advanced programming. For more
information read Appendix A.
3.3 BLOCK DIAGRAM
3.4 FRONT PANEL
Figure 1. Front panel operating controls
1.Channel or Profile selection button
2. Seven Segment Display (SSD)
3. UP / DOWN buttons
4. LED indicators
a. Lock: ON when HDMI communication have been established
b. Channel: ON when “Channel” mode is selected
c. Attenuation: ON when “Attenuator” mode is selected
d. Channel: ON when “Profile” mode is selected
5. Ground connector
6. +12 V DC power input
7. HDMI input
8. USB input
9. RF OUT output

3.5 INSTALLATION
The V40-10HDMI can be programmed with one of the following ways:
●From the front panel display
●From the USB interface
3.5.1 Installation using the Front panel display
The user is able to install very quick and easy multiple V40-10HDMIs using the SSD + Button interface of the front panel
of the device, following the steps below:
1st Step
Power up the V40-10HDMI by connecting the external power supply. The V40-10HDMI will need 20-30 seconds to
initialize itself. The SSD (Seven Segment Display – No2/Figure 1.) depicts the initialization status.
2nd Step
Choose “Channel mode” by pressing the Channel/Profile button (No 1 / Figure 1. ) and the “Channel LED” will be
illuminated indicating that “Channel” mode is selected.
3rd Step
Choose “Attenuation mode” by pressing the Channel/Profile button (No 1 / Figure No.1 ) the “Attenuation LED” will be
illuminated indicating that “Attenuation” mode is selected.
4th Step
Choose “Profile mode” by pressing the Channel/Profile button (No 1 / Figure 1.) and the “Profile LED” will be illuminated
indicating that “Profile” mode is selected.
How Profiles works
In an installation all the modulators (or Mux in general) need to have different values of the following fields to avoid
conflicts in the automated scan of the TV sets:
Program Name Service ID TS ID
For that reason, the user must always select a different Profile number for every modulator in the system starting from
Number #1.
Eg. Let’s say we want to install three modulators in a CATV network. In step No 4 we will choose:
● Profile Νο 1for the 1st modulator
omeaning: Program Name = DTV 1
omeaning: Service ID = 1
omeaning: TS ID = 2240
● Profile Νο 2for the 2nd modulator
omeaning: Program Name = DTV 2
omeaning: Service ID = 2
omeaning: TS ID = 2241
● Profile Νο 3for the 3rd modulator
omeaning: Program Name = DTV 3
omeaning: Service ID = 3
omeaning: TS ID = 2242
As a result, all the above modulators have different values in the above fields.
Caution!!!
● Every time we choose a different Profile number, the V40-10HDMI will apply a full reset to itself that will last for 20-30
seconds.
● Using the USB interface enables the ability to add custom values to the above fields.
3.5.2 Installation using the USB interface
The V40-10HDMI provides a USB interface with the appropriate software for advanced programming. For more
information read Appendix A.

4. TECHNICAL SPECIFICATIONS
Input
Type: 1 x HDMI
Connector: 1 x HDMI Type A
Video coding: MPEG-4 AVC/H.264
Profile: High profile 4.0
Resolution: 1920x1080-30p for HDMI PAL 720x576@25fps
Audio: HDMI & Mono/Stereo
Standard: MPEG-1 Layer II
Audio Bit Rate: 64, 96, 128, 192, 256, 320, 384 kbps
Level: 0.5 Vpp to 1.0 Vpp adjustable
H.264 Encoder
Standard: MPEG-4 AVC/H.264
Bit Rate: 1 – 19 Mb/s adjustable
Configurable Parameters: Service Name, Service ID, Video PID, Audio PID, PMT PID
Transport Stream Processing
Automatic Regeneration: NIT, PAT, CAT, SDT, PMTs, EITs tables
Configurable Parameters: TS ID, Original Network ID, Network ID, Provider Name
LCN support: Yes
LCN Providers: Nordin, ITC/UK, EICTA/Europe, New Zealand
DVB-T Output
Standard: EN 300 744
Bandwidth: 5,6,7,8 MHz
Mode: 2K, 8K
Constellation: QPSK,16QAM, 64QAM
Guard Interval: 1/4, 1/8, 1/16, 1/32
Code Rate: 1/2, 2/3, 3/4, 5/6, 7/8
RF Output
Type: RF DVB-T (COFDM)
Output Frequencies: 174…862 MHz
Output Level: 90 dBμV max.
Connector: 75Ω - F, female
Output Attenuator: 0…25 dB
MER: 35 dB (Typical)
Shoulder Attenuation: >45 dBc
Connectors: 1 x F - female
Programming Interface SSDisplay + keypad, USB interface
General
Supply voltage: +12 V DC
Current consumption: 340 mA max.
Operating Temperature: 0 ºC to 50 ºC
Storage Temperature: -10 ºC to +70 ºC
Humidity: up to 90%
Dimensions: 205 x 101,80 x 41 mm
Weight: 0.3 kg

APPENDIX Α
The V40-10HDMI offers a USB interface with the appropriate software (DVProbe.exe) for advance programming.
The software can be found on the CD that accompanies the V40-10HDMI.
System requirements
●Windows XP (SP1 or higher)
●Windows Vista
●Windows 7 (32 & 64 bit)
●Windows 8 (32 & 64 bit)
●Windows 10 (32 & 64 bit)
Device connection via software
1. Insert the supplied software CD into your CD-ROM drive.
2. Connect the V40-10HDMI via the USB cable (A-male to B-male type)
3. In case Windows cannot install the USB drivers automatically, when prompt, insert the correct path of the CD folder
named “USB drivers”, which contains the V40-10HDMI USB drivers.
4. Once Windows has successfully installed the USB drivers of the V40-10HDMI, a pop-up message appears to verify this
process.
5. Run the DVProbe.exe file and the main screen will appear (Figure 2.):
Figure 2. Main screen
Software guidelines
1. From the “ComPort” combo box choose the correct USB port that connects the V40-10HDMI and press “Connect”.
2. Once the software has successfully connected with the device, it will automatically download all the settings of the
V40-10HDMI.
3. The DVProbe consists of four sub-categories as described below:
●DVB-T Settings – Parameters regarding the modulator part
●Encoder Settings – Parameters regarding the H.264 encoder
●Multiplexer Settings – Parameters regarding the multiplex part
●System Settings – Parameters regarding system information
Vision Model Number?

1. DVB-T Settings
In this category the user is able to adjust several parameters of the modulator RF output part, as described below:
1.1 Channel - Output channel selection (VHF:5-12 & UHF:21-69)
1.2 Bandwidth - Bandwidth selection
1.3 Constellation - Constellation selection
1.4 Modulation - Modulation selection
1.5 Guard Interval - Guard Interval selection
1.6 Code rate - Code rate selection
2. Encoder settings
In this category the user is able to adjust parameters of the H.264 encoder, as described below:
2.1 Input source - Select the primary input source
2.2 Video BR (Mbps) - Set the video bitrate
2.3 Audio BR (Kbps) - Set the audio bitrate
2.4 Audio Encoding – Select the audio encoding
2.5 HDCP ON/OFF – Enables/disables HDCP
3. Multiplexer settings
In this category the user is able to adjust parameters of the V40-10HDMI multiplexer, as described below:
3.1 Network Name + ID - Enter the Network name + ID*
3.2 Program Name + ID - Enter the Program name + ID
3.3 Provider Name - Enter the Provider name
3.4 Original Net ID - Set the Net ID (0-65535)*
3.5 TS ID - Set the Transport Stream ID (0-65535)*
3.6 PMT PID - Set the PID value
3.7 Video PID - Set the Video PID value
3.8 Audio PID - Set the Audio PID value
3.9 LCN No - Set the LCN No (1-999) (must be enabled first)
3.10 LCN Provider - Set the LCN provider
Caution!!!
● Modulation settings must be applied with care and in order to have adequate output bitrate. The output bitrate (which can be
calculated from the tables in Appendix B) must be equal or greater than the total sum of the bitrate of the encoders.
Example: Assuming we select the following modulation settings:
Modulation: 8K
Constellation: 16-QAM
Code Rate: 5/6
Guard Interval: 1/32
Bandwidth: 8 MHz
We have an output bitrate of 20.107 Mbps according to Appendix B.
This means that encoder’s bitrate must be adjusted in such a way that the total bitrate of the encoder does not exceed the
20.107 Mbps limit, otherwise artifacts may occur.
For example, one valid selection in case of four encoders would be to set each encoder bitrate to 5 Mbps since:
4 x 5 Μbps = 20 Mbps < 20.107 Mbps
* TS ID must always be different between DVB-T modulators in the same network.
4. System Settings
This category depicts information about the system’s settings as follows:
4.1 Status - Depicts the status of the modulator (Idle or Running)
4.2 FW Version - Depicts the firmware version of the uP
4.3 SW Version - Depicts the software version of the DVProbe
4.4 HW Version - Depicts the hardware version of the V40-10HDMI
4.5 Serial number - Depicts the serial number of the device

Buttons
● By pressing the “Get” button in any sub-category, all the settings of this category are downloaded from the modulator.
● By pressing the “Apply” button in any sub-category, all the settings of this category are uploaded to the modulator.
● The “Factory Defaults” button sets the modulator’s setting to factory default.
● The “Reset System” button applies a reset to the modulator.
APPENDIX B
DVB-T bitrates(Mbit/s) for 8 MHz bandwidth (non-hierarchical systems)
Modulation Coding
Rate
Guard Interval
1/4 1/8 1/16 1/32
QPSK
1/2 4.976 5.529 5.855 6.032
2/3 6.635 7.373 7.806 8.043
3/4 7.465 8.294 8.782 9.048
5/6 8.294 9.216 9.758 10.053
7/8 8.709 9.676 10.246 10.556
16-QAM
1/2 9.953 11.059 11.709 12.064
2/3 13.271 14.745 15.612 16.086
3/4 14.929 16.588 17.564 18.096
5/6 16.588 18.431 19.516 20.107
7/8 17.418 19.353 20.491 21.112
64-QAM
1/2 14.929 16.588 17.564 18.096
2/3 19.906 22.118 23.419 24.128
3/4 22.394 24.882 26.346 27.144
5/6 24.882 27.647 29.273 30.160
7/8 26.126 29.029 30.737 31.668

DVB-T bitrates(Mbit/s) for 7 MHz bandwidth (non-hierarchical systems)
Modulation Coding
Rate
Guard Interval
1/4 1/8 1/16 1/32
QPSK
1/2 4.354 4.838 5.123 5.278
2/3 5.806 6.451 6.830 7.037
3/4 6.532 7.257 7.684 7.917
5/6 7.257 8.064 8.538 8.797
7/8 7.620 8.467 8.965 9.237
16-QAM
1/2 8.709 9.676 10.246 10.556
2/3 11.612 12.902 13.661 14.075
3/4 13.063 14.515 15.369 15.834
5/6 14.515 16.127 17.076 17.594
7/8 15.240 16.934 17.930 18.473
64-QAM
1/2 13.063 14.515 15.369 15.834
2/3 17.418 19.353 20.491 21.112
3/4 19.595 21.772 23.053 23.751
5/6 21.772 24.191 25.614 26.390
7/8 22.861 25.401 26.895 27.710

DVB-T bitrates(Mbit/s) for 6 MHz bandwidth (non-hierarchical systems)
Modulation Coding
Rate
Guard Interval
1/4 1/8 1/16 1/32
QPSK
1/2 3.732 4.147 4.391 4.524
2/3 4.976 5.529 5.855 6.032
3/4 5.599 6.221 6.587 6.786
5/6 6.221 6.912 7.318 7.540
7/8 6.532 7.257 7.684 7.917
16-QAM
1/2 7.465 8.294 8.782 9.048
2/3 9.953 11.059 11.709 12.064
3/4 11.197 12.441 13.173 13.572
5/6 12.441 13.824 14.637 15.080
7/8 13.063 14.515 15.369 15.834
64-QAM
1/2 11.197 12.441 13.193 13.572
2/3 14.929 16.588 17.564 18.096
3/4 16.796 18.662 19.760 20.358
5/6 18.662 20.735 21.995 22.620
7/8 19.595 21.772 23.053 23.751