24 In 1 Ip To Qam Modulator

24 In 1 Ip To Qam Modulator

IPQ6250 Plus a professional broadcast grade device dedicated to three-network convergence platform in the high speed IP-based head-end series , which is a new generation of modular & high density Edge QAM modulator combining multiple Gigabit Ethernet input , transport stream re-multiplexing,...

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Product Details

Overview

Broadcast IP To QAM Modulator

    IPQ6250 Plus a professional broadcast grade device dedicated to three-network convergence platform in the high speed IP-based head-end series, which is a new generation of modular & high density Edge QAM modulator combining multiple Gigabit Ethernet input, transport stream re-multiplexing, scrambling, maximum 144 channel QAM modulation in a 1U rackmount unit.

    It supports 24 QAM channels and 1+1 redundant & hot-swappable power supplies for high reliability and stability of system. Its pay-as-you-grow modular design, flexible configurations and licensing mechanism are making the IPQ6250 Plus unparalleled scalability, reliability and system performance to cable operators.  

    With the IPQ6250 Plus, cable operators can be ensured that they will have a scalable, reliable, high performance video stream services for years into the future. It can be applied to cable DTV head-ends, sub head-ends and VOD networks.

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Application

 

 Digital headend system base on IP network, HFC network edge

 Broadcast Application built-in multiplexing and scrambling function

 MPEG-TS transmission over local IP network

 VOD Edge QAM modulator

IPQ6250 PLUS application .png

J.83 Annex A: Table of constellation, bandwidth, symbol rate and bit rate.

 

Constellation

QPSK

16QAM

32QAM

64QAM

128QAM

256QAM

Minimum bit Rate (Mbps)

2

4

5

6

7

8

Maximum bit Rate (Mbps)

14

28

35

42

49

56

Minimum Bandwidth (MHz)

1.15

1.15

1.15

1.15

1.15

1.15

Maximum bandwidth (MHz)

8.05

8.05

8.05

8.05

8.05

8.05

Minimum Symbol Rate (Mbaud)

1

1

1

1

1

1

Maximum Symbol Rate (Mbaud)

7

7

7

7

7

7


 8MHz Maximum Output Bit Rate

 

 

Constellation

C/N Threshold

Maximum Valid Bit Rate

Channel Utilization Ratio

16QAM

22dB

25.8Mbps

3.2 bit/Hz

32QAM

25dB

32.2Mbps

4.0 bit/Hz

64QAM

28dB

38.7Mbps

4.8 bit/Hz

128QAM

31dB

44.2Mbps

5.5 bit/Hz

256QAM

34dB

51.6Mbps

6.4 bit/Hz


Maximum Valid Bit Rate = Output Bit Rate * 188 / 204


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