Digital module station TRIAX TDH-700 is intended to form TV and radio signals for following distribution on cable television networks.
Most suitable for small and medium networks with the number of abonents from several hundreds to several thousands.
Wide range of choice of functional modules allows to solve any tasks of content formation. TV and radio programs are received from satellites in digital form and are modulated in analogous TV signals within a range 47-860 MHz, it is possible to transfer low-frequency V/A signals from other sources and to modulate to TV signals, it is possible to convert TV signals received from air, it is possible to transmodulate the digital packages QPSK - QAM.
The base block of the station has built-in supply unit, RF-summator, output amplifier. There are two types of the base block: TDH-701 main unit, that is equipped with programmator, and TDH-701 sub unit, that has everything except for the programmator. Up to the four sub units can be additionally connected to the single main unit.
The main unit of the station has 6 installation slots for replaceable modules. The operation of satellite receivers-modulators is carried out on principle Master-Slave, which allows to save on selection nodes and carry out the centralized control of all modules. All internal modules are inserted into the separate slots and are connected by the high-speed bus, on which an information is transferred by MPEG-flow. Slave modules have no input receiving block and are modulating only programs from the same package that is received by Master module.
|
TDH-700 Main unit |
TDH-700 Sub unit |
Number of signals, pcs |
6 |
6 |
Frequencies at output, MHz |
47 - 862 |
47 - 862 |
Max. output level (6 channels, IMD=60dB), dBmkV |
105 |
105 |
Adjustment, dB |
10 |
10 |
Test point, dB |
-30 |
-30 |
Return loss, dB |
≥10 |
≥10 |
Impedance, Ohm |
75 |
75 |
Remote control |
present |
- |
Downloading of software |
RS-232 female |
- |
Connection of a modem |
RS-232 male |
- |
Connection between main and additional blocks |
USB A/B cable |
USB A/B cable |
Permitted voltage, V |
190 - 260 |
190 - 260 |
Consumed voltage, W |
120 max |
110 max |
input/output sockets |
F-female |
F-female |
Working temperature, °C |
-10…+50 |
-10…+50 |
Weight, kg: |
5,8 |
- |
Dimensions, mm |
223 × 160 × 440 |
223 × 160 × 440 |
TDH-DVB-S modules convert satellite digital TV signal with quadrature phase-shift keying (QPSK) into an analogous signal of the PAL of SECAM standard for its further transferring to the collective cable system.
In the TDH-702 and 703 modules the CI interface is present for connection of decoding CA modules
TDH-737 and 738 modules are intended for conversion of digital sound of broadcasting to the analogous signal.
All master modules are equipped with high-quality modulators, allowing to transfer analog signals onto the required frequencies in MV and DMV ranges.
Master-modules provide multi-language menu and support of teletext and subtitles on various languages. They form MPEG-transport flow, by means of which interact with slave modules.
Depending on the type of the master module, the processing of accompanying sound is possible in formats: Mono, A2-stereo or NICAM-stereo.
Module |
Modulator type |
TV standard |
Input frequencies |
Output frequencies |
Sound format |
TDH-702 Satellite Master module, mono |
single-pole |
B/G, I, L, D/K |
920...2150 MHz |
47...862MHz |
Mono |
TDH-703 Satellite Master module, stereo |
A2 stereo |
||||
TDH-722 Satellite master module FTA, mono |
Mono |
||||
DH-723 Satellite Master module, stereo |
A2 stereo |
||||
TDH-703N Satellite module with NICAM stereo sound and CI |
NICAM Stereo |
||||
TDH-723N Satellite module with NICAM stereo sound FTA |
NICAM Stereo |
||||
TDH-737 FM, DVB-S/FM FTA Master module |
QPSK - FM stereo |
- |
87.5 - 108 MHz |
FM stereo |
|
TDH-738 FM, DVB-S/FM CI Master module |
Slave modules are installed into the TDH-700 Main unit or TDH-701 Sub unit. Up to the 5 Slave modules can be installed in the single unit under control of the single Master module Modules listed below are intended for operation with open channels (FTA).
Module |
Modulator type |
TV standard |
Input frequencies |
Output frequencies |
Sound format |
TDH-704 Slave module with mono sound |
single-pole |
B/G, I, L, D/K |
from master module |
|
Mono |
TDH-705 Slave module with A2 stereo sound |
|
A2 stereo |
|||
TDH-705N Slave module with NICAM stereo sound |
|
NICAM Stereo |
|||
TDH-739 FM, DVB Slave module |
FM stereo |
- |
87.5 - 108.0 |
FM stereo |
Module |
Modulator type |
Output frequencies, MHz |
Sound system |
Output level, dBmkV |
TDH-725 Modulator modules VSB with Monosound |
single-pole |
47...862 |
Mono |
105 |
TDH-726 Modulator modules VSB with A2 Stereo sound |
A2 stereo |
|||
TDH-726N Modulator modules VSB with NICAM Stereo sound |
NICAM Stereo |
|||
TDH-736 FM modulator |
FM stereo |
87.5 - 108.0 |
FM stereo |
92 |
Module |
Modulator |
Input frequencies, MHz |
Input level, dBmkV |
Output frequencies, MHz |
TDH-730 QAM module DVB-C TDT |
QAM Transparent |
920 - 2150 |
45...84 |
306...858 |
TDH-732 QAM moduleD VB-C |
Q |