Important Safety Instructions; Technical Specifications - Televes T.0X Serie Guía Rápida

COFDM- QAM CI

Important safety instructions

General installation conditions
• Before handling or connecting the equipment, please read this
manual.
• In order to reduce the risk of fire or electric shock, do not expose the
equipment to rain or moisture.
• Do not take the cover off the equipment without disconnecting it
from the mains.
• Do not obstruct the equipment's ventilation system.
• Please allow air circulation around the equipment.
• The equipment must not come into contact with water or even be
splashed by liquids. Do not place containers with water on or near the
equipment if it is not adequately protected.
• Do not place the equipment near sources of heat or in excessively
moisture conditions.
• Do not place the equipment where it may be affected by strong
vibrations or knocks.
• This symbol indicates that the equipment complies with
the requirements of CE mark.
NOTE: You have a complete User Guide on our website:
www.televes.com.
Links available at the end of this guide.

Technical specifications

Input frequency (selec.)
Frequency steps (selec.)
COFDM input Input level
Input connectors
Impedance
Modulation format
Symbol rate (max.)
QAM
Modulator
Roll-off fator
Block code
Output frequency (selec.)
Frequency steps
QAM output Output level (max.)
Attenuation (progr.)
Output through losses (typ.)
Consumption 24Vdc
(with signal)*
General
Protection index
* The unit's consumption with CAM will depend on the type of CAM being used. For preamplifiers it is considered a standard consumption of 50mA.
The Power Supply Unit is able to powering up to seven COFDM-QAM CI modules maximum.
Is necessary to use both PSU outputs when consumption of one of them exceeds 4A (maximum current in each output).
The technical characteristics described are defined for a maximum ambient temperature of 45°C (113ºF). Forced ventilation must be used for higher temperatures.
Inputs/Outputs/Connections description
The unit (Fig. 1) is provided with:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Programmer unit 7234
Introduction
MHz 177,5 - 226,5 / 474 - 858
KHz 125, 166
dBm -60 to -20
type "F" - female
ohm 75
QAM 16, 32, 64, 128, 256
Mbaud 6.9
% 15
Reed Solomon (188, 204)
MHz 46 - 862
KHz 250
dBμV 80 ±5
dB >15
dB < 1.5
mA
IP
COFDM input
COFDM output
RF input
RF output
Module power supply input
Status LED
Control BUS connector
Slot CAM
Programmer / PC connector
The COFDM-QAM CI transmodulator receives a DTT multiplex in DVB-T
format, and demodulates it to obtain a transport stream package. Then, it is
processed to delete and/or decode services. For unscrambling services the
transmodulator features a CI slot for inserting a CAM (Conditional Access
Module).
Next, the transport stream package is modulated in QAM format and
converted to the desired output channel (UHF or VHF and a maximum
bandwidth of 8 MHz) by means of its agile up-converter.
Make use of the universal programmer (ref. 7234) to programme the
operating parameters of the transmodulator like input frequency, output
channel, modulation format and adaptation of services, ....
Input return losses (typ.)
Bandwidth
Input through losses (typ.)
Powering for preamps (selec.)
Scrambling
Interleaving
Bandwidth (max.)
Spectral inversion (selec.)
Output return losses (typ.)
MER
Input/Output connectors
Impedance
270 (no CAM inserted; preamplifiers powering OFF)
370 (CAM inserted; preamplifiers powering OFF)
320 (no CAM inserted; preamplifiers powering ON)
420 (CAM inserted; preamplifiers powering ON)
20
dB >10
MHz 7; 8
dB < 1.5
Vdc 0, 12, 24
DVB ET300429
DVB ET300429
MHz 8.3
Normal / Inverted
dB > 12
dB > 40
type "F" female
ohm 75
6