Product Details

Product Description

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.

Specifications

Input
ASI Input	6/8/16x ASI Inputs, accordance to EN50083-9
	connector: BNC,75ohm
	Bit Rate: ≤160Mbps(Single ASI)
	Packet Length: 188/204 bytes auto-adaptive
DVB-S/S2 RF Input(option)	8xRF Inputs and loop out,F-Female
	Frequency range:950- 2150Mhz
	Level:-65-25dbm
DVB-C Input(Option)	Constellations: 16/32/64/128/256 QAM
	Frequency Range: 50 to 860MHz
	Input Signal Level: -20 to +20dBm (64QAM)
GbE IP input(option)	1x100/1000M Base-T Ethernet
	7x188 Bytes
	MPEG TS over UDP/RTP
	128 MPTS or SPTS of Number
	Unicast and multicast
	RJ45 Connector

MPEGoIP output
Select the streams out via Multiplexed or Scrambled
UDP protocol,Unicast,Multicast, Through out via 1000M Ethernet Port1 or Port 2

Multiplexing Specifications
TS input	Input TS number	0~8
	Total services number(total)	0~512
	Service number per input TS	0~64
TS output	Output TS number	0~4
	Total services number(total)	0~256
	Service number per output TS	0~64
	TS mode	RF out as mirror of IP out
PSI for output TS	Standard(syntax and send period)	ISO/IEC 13818-1 DVB SI(ESI EN300468)
	Table type	PAT/PMT: Generated automatically SDT: Generated automatically or use uploaded files NIT/BAT: Use uploaded files TDT/TOT: Optional

Scrambling & CAS interfaces
Scrambling	Scrambling algorithm	DVB-CSA
	Embedded scramblers number	4
	Table update	CAT/PMT
CAS Interface	Simul-Crypt CAS number	0~4
	SCS interface	ETSI TS 103 197
	ECMG interface	TCP
	EMMG interface	TCP/UDP
	EMM bandwidth	0~3Mbps/TS

RF Output Technical Specifications
RF Output	Output Frequency	54MHz~870MHz
	Maximum Output EPL (main)	90-110dBuV (4 Channels，0.5dB as step size)
	Maximum Output EPL (monitoring)	70-90dBuV (4 Channels，0.5dB as step size)
	Impedance	75Ω
	Reflection Loss	≥12dB
	Carrier Suppression	>58dB
	MER	≥40dB（QAM Constellation: 64QAM Symbol Rate: 6.857MBaud）
	SNR（Out of band）	≥50dB
	Gain fine-tune	0.00～5.00dB (Step size is 0.25dB)
	Phase Noise	@1KHz	≥90dBc/Hz
		@10KHz	≥100dBc/Hz
		@100KHz	≥105dBc/Hz
	Accuracy of center frequency	±25KHz

Common Technical Specifications
Power Supply & Consumption	AC Input Voltage	110～240VAC
	AC Input Frequency	50～60Hz
	Power Consumption	25W
	No. of Power Supply Modules	1
	Operating Temperature	5°C ~40°C (41°F ~104°F)
	Storage Temperature	-25°C ~70°C (-13°F~158°F)
	Air Pressure	86～106KPa
	Humidity	10%～90%

Interfaces
Data Input Interface	Connector	BNC-Female
	Quantity	9
	Data Format	188 Bytes
	Impedance	75Ω
	Input Data Rate	0~270Mbps
Management Port	Connector	RJ45
	Quantity	1
	Functionality	Management and CAS
	MAC	IEEE 802.3 1000BASET
	Network Protocol	TCP/IP
	Application	HTTP4.0/HTML1.1/XML/CGI(Web Management) NTP

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