K20 Compact Headend
DVBS2 – DVBC 8+16 MUX / Ref. 570105

The perfect balance between simplicity and efficiency

Ready to work compact headend that generates QAM multiplex from the services available in TV SAT transponders (DVB-S/S2/S2X). Stand alone solution for transparent transmodulation of any transponder from any of the 4 satellite polarities, and just a electrical plug (PSU included).

It is possible to combinate two K20 headends to achiveve a greater number of output multiplex. Both devices will be connected in loop mode (cascade), and it can be possible to manage the configuration of the whole solution with one of the K20 units set in master mode.

The headend allows its configuration throught a Web interface via Ethernet or WiFi (accessory ref. 216802 required).

Highlights

  • Easy-to-install solution (Plug & Play): less cables and shoter installation time
  • Pre-settings autoconfiguration: the user selects which preloaded configuration wants and the module configurates itself
  • User web interface: Access to the headend configuration through Ehternet connection or a self-created WiFi network. The interface is perfectly adapted to any device: PC, smartphone or tablet
  • Cloning function to replicate configurations between different installations
  • Flexible number of input transponders: combination of two K20 units to obtain more transponders (up to 32). In this case, one of the modules will be the master and the other the slave
  • Good thermal management thanks to its built-in heat sink and fans

 

Main Features

  • SID filtering allows the removal of undesired services inside a multiplex (enhanced occupation use)
  • Compact design: 273x203x57 mm
  • Zamak chassis provides high screening effect
  • Great robustness

SPECIFICATIONS

SAT input Input frequency MHz 950…2150
Symbol rate Mbaud 2 – 42.5 (DVB-S)
10 – 30 (DVB-S2/S2X)
Frequency steps MHz 1
Input level dBμV 49 – 84
Input and output connectors “F”-Female
Input impedance Ohm 75
LNB powering Vdc/KHz 13V/17V/ OFF – 22KHz (ON/OFF)
Satellite selection (DiSEqC) A, B, C, D
Modulation DVB-S2X QPSK/8PSK, 8/16/32 APSK
(EN302307-2)
DVB-S2 QPSK, 8PSK
(EN302307)
DVB-S QPSK
(EN300421)
Internal FEC LDPC
(9/10, 8/9, 5/6, 4/5, 3/5, 3/4, 2/5, 2/3, 1/3, 1/4, 1/2)
External FEC BCH
(Bose-Chaudhuri-Hocquenghem)
Roll-Off factor % 20, 25, 35
QAM modulator Modulation format 16, 32, 64, 128, 256 QAM
Symbol rate Mbaud 1 – 7.2
Roll-Off factor % 15
Block code Reed Solomon (188, 204)
Scrambling DVB ET300429
Interleaving DVB ET300429
Bandwith MHz 8.28 max.
Output spectrum (select.) Normal / Inverted
RF Output Output frequency (select.) MHz 46…862
Frequency steps KHz 250
Maximum output level (select.) dBμV 95±5
Attenuation dB 0 – 15 (global)
0 – 10 (per channel)
Through losses dB < 1
Input/output connectors “F”-Female
Output impedance Ohm 75
General Power supply V~
Hz		 230
50/60
Consumption W / mA 570101 – 36 / 265
570102 – 62 / 470
570103 – 64 / 480
Protection index IP20

DOWNLOADS

FUNCTIONALITIES

Using preloaded configurations

These headends incorporate default preloaded configurations in the system depending on the number of transponders in the module. Simply select the desired configuration for the installation and apply it.

Wizard mode for guided configuration

The interface includes a “Wizard” mode to configure a unit or the joint configuration of two loop mode units. It offers a guided step-by-step configuration to ensure successful configuration, with led indication of the unit, selection of the desired preload configuration, and a summary of the applied configuration.

Ethernet network configuration

Each unit has two Ethernet RJ45 connectors, one for network connection and the other one for loop mode link between units. Thanks to the interface it is possible to configure input parameters of the network connection: IP address, subnet mask, and default port link, as well as the DHCP client mode.

Cloning of headends configurations

The web interface allows to export/import files for duplicating units configurations, to use them in another intallations. This function helps to reduce time in typical installations, due of having previously a configured file. The exportation of these files also allows to have a headend configuration backup.

Status system window

An analysis of the general information of the installation can be seen on the interface. The system indicators are identified with colors in order to facilitate the identification of errors in case of any incident.

Secure configuration with password

Protect the headend from unauthorized profiles by assigning a password to access the configuration edition. In addition, for those cases where there is more than one unit, both master and slave devices must have the same password.

APPLICATION EXAMPLE

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ADDITIONAL INFORMATION

Block Diagram