Most questions proposed by our customers can find answers in this section. If you need further assistance you can contact us directly by completing the following information
The effect of the lines moving vertically across the TV screen could be caused by the T05 headend not being grounded correctly. To avoid this, proceed to: Either mounting the modules on the appropriate connection strip (ref. 5071) Or screwing the modules to the sub-rack (5301, 5306)
You can configure a headend by connecting the CDC as a LAN host using the Tsuite software and configuring the module communications (Fixed IP or DHCP client).
As a general rule, they can power up to 7 modules. However, the actual number depends on the type(s) of the T0X modules being used; that is why it is always recommended to check the instructions manual of the specific equipment for the answer.
Yes. Every precaution should be taken, given the cost of the modules. Cabinets with forced ventilation work based on the equipment temperature, regulating it, thus increasing its durability.
Modulators do not only generate the desired channel, but also another kind of signal called spurious (traces from the local oscillator and upper sideband). Depending on the specific band, all these signals have an impact on the calculation of the maximum output voltage: their presence means they have to be taken into account as signals that are going to be amplified.
The difference lies in the number of protection layers applied to each of them. All fibers have a diameter of 125 microns. For 250-micron fibers, a single 125-micron coating is applied on top of the 125-micron fiber, thus reaching the total diameter of 250 micron. After that, an external cover is applied, which may have different diameters (depending on the number of fibers we wish to drive through). For 900-micron fibers, a first protection is applied on top of the 125-micron fiber, thus reaching 250 microns, and then a second protection is applied until the 900-micron diameter is reached. After that, an external cover is applied, which may have different diameters (depending on the number of fibres we wish to drive through).
In some cases, the transmodulation of specific satellite channels into COFDM will probably not be enough; this is why the option is available to add the IF of a satellite polarity to the COFDM signal flow. Furthermore, that signal flow may be transmitted over optical fibre by means of an appropriate low-loss optical transmitter, thus allowing to reach longer distances.
Thanks to these measures and graphics, you will be able to know how many modules you can fit in each cabinet or frame. Televes uses standard dimensions in order to make installation easier for our technicians. These dimensions are taken from a Eurocard (standard European format for PCB). Vertically, we find the U (Unit Rack) equivalent to 1.75 inches (44.45 mm), horizontally we have the HP (Horizontal Pitch), equivalent to 0.2 inches (5.08 mm).
Below you will find the dimensions of the main modules in our headend series.
Supports and Cabinets
HP
5301
19’’ Rack frame
84
567201
19’’ Wall support
54
5072
Lockable Cabinet 498mm
84
5069
Lockable Cabinet 648mm
112
5235
Lockable Cabinet 948mm
168
Equipment dimensions’ list
HP
5629
549812
Power Supply Unit (T.0X/T.12)
14
-
T.0X (Transmodulators, CDC,... normal chassis equipment)
A T.0X module with remultiplexing has three input demodulators, and therefore three sources of services. As a result, the CAM used for service decryption needs to know to which of the three sources it needs to connect.
There are two options:
The services come from one of the demodulators (“IN A”, “IN B” or “IN C”).
The services come from service multiplexing (“OUT”), and therefore the services coming from any of the inputs can be decrypted, provided they share the same conditional access system.
This configuration is performed on the CAM menu of the programmer (Image 1).
This function is available on the Tsuite "Configuration" screen of the desired module (Image 2).
Therefore, depending on how this section is configured, the decrypted services may belong to a single demodulator (same transponder) or to different demodulators (different transponders).
The CAM will decrypt multiplexed services coming from different demodulators.
The front LED of a T.0X DVB-S/S2-COFDM transmodulator does not only indicate whether the equipment is on or off. It can have different meanings, depending on the colour displayed. Here is how it works.
If both the signal and the module configuration are correct, the LED colour will be green; a yellow colour indicates low signal.
If the LED colour is red, either no signal is present or some of the transmodulator blocks is not correctly configured. However, a red colour does not always mean failure or bad configuration.
The LED colour will also be red in case some TVSAT service has no content (very common situation for paid services that transmit specific events). As soon as the operator activates the service (start of event transmission) the colour will shift to green (or yellow, depending on the input level)
