digital catv headend system equipment asi/dvbs/s2 convert to dvb-c modulator

Multifunctional QAM Modulator

QAM6248 is a new generation of Multi-functional QAM modulator, which can receive one channel of TS from IP interface or up to 16 channels of TS from ASI interfaces, and then multiplex, scramble and multi-modulate it with channel coding, as well as four channels of IP loop output. It adopts our newly developed functions such as “Module Management”, device scrambling, and channel modulation. The flexible customization and high expansibility can satisfy the user’s current and future DTV system requirements.

The product is mainly applied to the DTV network head end room, edge of DTV backbone network, and DTV branch head end room.

Feature

1. Support ITU-T J.83A/B/C,output frequency range: 54MHz ~ 870 MHz

2. Up to 6/8/16 ASI or 8 fta dvb-s2 RF ports or GbE IP port in per chassis with Max.4 agile QAM channelsout

3. Simultaneous outputs via MPTS over GbE IP and RF Port

4. Capable of working with 16QAM, 32QAM, 64QAM, 128QAM, 256QAM modulation methods

5. The single device offers multiple configurations, the functions of scrambling and multi-channel RF output can be released by software authorization

6. Support up to 4 simul-crypt CAS and DVB-CSA scrambling

7. Support SI/PSI auto-generation and manual uploading during re-multiplexing

8. Support auto-generation or manual editing of network information, as well as local network information sectors uploading

9. Adopt extra-large cache memory for both constant and inconstant input bit stream at ASI interface

10. Flexible network configuration, support input stream auto-detection and user configuration auto-saving

11.  188/204 data packet length, and real-time display the data format

12. Support PID filtering，mapping and pass-through

13. PCR auto-correction

14. Bit rate range of single output data: 15.5～51.6Mbps

15. Output data symbol rate range of single RF channel: 4.2～7Mbaud/s

16. Output EPL range: 95 dBuV～115 dBuV (8 channels, step size: 0.25 dB)

17. Support gain fine-tune and in-band EPL balancing, EPL adjustment range: -2.5～10.5 dB

18. Support -20dB RF test port

19. Tracking filter circuit design to ensure outstanding out-of-band rejection

20. Support device configuration import/export

21. Easy-to-Use System Management with Web/SNMP-based management and online remote update

22. Multi-lingual management user interfaces and related documents, suit for both regional and overseas markets

23. Support monitoring of operation temperature and power supply status.

Packing

Delivery