Vision V40-10HDMI Operation Manual page 3

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)
2. 10 dB attenuation (Output level: 80 dBμV)
3. 25 dB attenuation (Output level: 65 dBμV)
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.
SSD will display: "00"
SSD will display: "10"
SSD will display: "25"