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The RDC-311 R817102 module is mounted in the base unit (UC-380 R81700) of the MMH-3000 headend.
The module receives and converts DVB-S/S2 (QPSK/8PSK) signals into MPEG2 TS (transport stream) that can be further used e.g. by DVB-T modulator TRX-360 R81709. One module converts a whole satellite transponder.
The RDC-311 R817102 module (in connection with TRX-360) is intended for creating a DVB-T multiplex - in the case of conversion of satellite channels into analog PAL channels the suitable choice is RDC-316 R817101.
The module receives and converts DVB-S/S2 (QPSK/8PSK) signals into MPEG2 TS (transport stream) that can be further used e.g. by DVB-T modulator TRX-360 R81709. One module converts a whole satellite transponder.
The RDC-311 R817102 module (in connection with TRX-360) is intended for creating a DVB-T multiplex - in the case of conversion of satellite channels into analog PAL channels the suitable choice is RDC-316 R817101.
The device has been equipped with PCMCIA slot for a Common Interface module, which allows for reception and decoding of encrypted channels.
The set of RDC-311 R817102 and TRX-360 R81709 modules converts satellite channels into a DVB-T multiplex. Each of the RDC-311 R817102 modules receives a selected satellite transponder. The whole transponder is fed to the TRX-360 R81709 module allowing the administrator to select channels that are to be placed in the DVB-T multiplex. The TRX-360 has six the MPEG-TS inputs. The administrator should remember about the maximum bitrate at the output of the DVB-T modulator in the TRX-360 module (ca. 31 Mbps). It translates into 7-8 SD channels.
The principle of selection of the Terra MMH-3000 modules for converting DVB-S/S2 broadcasts to DVB-T multiplexes is as follows:
- the number of the RDC-311 R817102 modules is the same as the number of received satellite transponders,
- the number of TRX-360 R81709 modules is the same as the total number of SD channels divided by 8; one TRX-360 can operate together with maximum six RDC-311,
- the number of the UC-380 R81700 base units is equal to the total number of all modules divided by 8.
More on MMH-3000 headend you can read in the article :
.Specifications
Name | RDC-311 | |
Code | R817102 | |
RF input | frequency range | 950-2150 MHz |
level/impedance | 30-88 dBμV / 75 Ω | |
Power for LNB | 0/18 V & 400 mA max. | |
Input symbol rate | 1...45 MS/s | |
Output symbol rate (MPEG2 TS) | 2...80 MS/s | |
Power | 5.5 VDC , 1.1 A | |
Operating temperature range | 0°C...50°C | |
Dimensions / Weight | 45x115x232 mm / 0.46 kg |
Electrostatic discharge caution
The module contains electrostatic sensitive components. To minimize electrostatic discharge, observe the following precautions:
- Do not remove module from its anti-static plastic bag until you are ready to install it into the base unit.
- Hold the module only by its front panel.
- Do not place the module on an unprotected surface. Immediately after you remove the module from the base unit, you must insert it into its anti-static plastic bag.
- When the module is not in use, keep it in its anti-static plastic bag.
- Do not ship or store the module or base unit in/near strong electrostatic, electromagnetic or radioactive fields.
Specifications
Nazwa | RDC-311 | |
Kod | R817102 | |
Wejście RF | zakres częstotliwości | 950-2150 MHz |
poziom/impedancja | 30-88dBμV/75Ω | |
Zasilanie LNB | 0/18V & 400mA max. | |
Prędkość symbolowa | 1...45 MS/s | |
Wyjście MPEG-2 TS | 2...80 MS/s | |
Pobór mocy | DC 5.5 V, 1.1 A | |
Zakres temperatur | 0...50°C | |
Wymiary / Masa | 45x115x232 mm / 0.46 kg |