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QAM 4 CI-S
The QAM 4 CI-S headend converts four SAT transponders into four DVB-C channels. The four inputs are each provided with a CI interface for decoding encrypted signals. Decoded programmes can then be centrally fed into the transmission network. The headend can also be used as a free-to-air system.
- Brand:
Polytron
-
Code: QAM 4 CI-S
Available
| technical data | |
| Type | QAM 4 CI-S |
| Article no. | 5552040 |
| Inputs | |
| SAT-Eingänge | 4 |
| CI-Schnittstellen | 4 |
| Input level | 50–80 dBµV |
| LNB supply | 12 V / max. 250 mA |
| Demodulator | |
| SR DVB-S / QPSK | 1–45 MS/s |
| SR DVB-S2 / QPSK | 1–45 MS/s |
| SR DVB-S2 / 8PSK | 1–37 MS/s |
| QAM Modulator | |
| Modulation type | DVB-C (in accordance to the DVB standard) |
| Signal constellation | 16, 32, 64, 128, 256QAM |
| Symbol rate | 1–7,2 MS/s |
| Bandwidth | 7 / 8 MHz (abhängig von der Symbolrate) / " = 0,15 |
| Data rate | max. 53 Mbit/s |
| Output | |
| Frequency range | 112–862 MHz |
| Output level | 90 dBВµV |
| Channel attenuation | 0...12 dB |
| MER | ≥ 40 dB |
| Power consumption | 37 W inkl. 250 mA LNB |
| Operating voltage | 230 V, 50/60 Hz |
| Dimensions (W x H x D) | 331 x 328 x 103 mm |
| Weight | 7 kg |
