Digital 8in1 HDMI to DVB-C/T Modulator Support Low Delay

• Customization: Available
• Type: CATV Equipment
• Function: Signal Transmission Equipment
• Model NO.: HP848H
• Certification: CE, ISO, RoHS, SGS
• Condition: New
• Transport Package: Carton
• Specification: 1U
• Trademark: catcast
• Origin: Chengdu, China
• Production Capacity: 500PCS Per Month

Product Description

Digital 8in1 HDMI to DVB-C/T Modulator Support low delay



 
Product Overview
 

HP848H 8 in 1 Encoder Modulator is an all-in-one device integrated encoding (MPEG-4/AVC H.264) multiplexing and modulation functions in one standard 1U case. It can convert 8 HDMI signals and 1 ASI input to DVB-C/DVB-T RF out in the frequency range of 30~960MHz. It is also equipped with 2 ASI ports and IP port to output TS. 
The signals source could be from satellite receivers, closed-circuit television cameras and etc. its output signal is to be received by DVB-C/T standard TVs or DVB-C/T STBs. In conclusion, its high integration and cost-effective design make this device widely used in variety of digital distribution systems such as CATV digital head-end, satellite and terrestrial digital TV, etc. The device can be used in public place such as metro, market hall, theatre, hotels, resorts, etc for advertising. It also can be used for monitoring, training and educating in company, schools, campuses, hospital.
 
 

 

Key Features

1. Support 8 HDMI channels input & 1 ASI Input
2. Support H.264/AVC video encoding
3. Support MPEG1 Layer 2 (HE-AAC (V2), LC -AAC optional) audio encoding, Digital Dolby AC3 passthrough (for HDMI)
4. Support low delay
5. Support audio gain control
6. Support PSI/SI editing and inserting
7. Support accurate PCR adjusting
8. PID remapping and pass through
9. Support VBR/CBR video bit rate mode
10. Support 720P, 1080I, 1080P HD video format
11. Support IP(1000M) output over UDP,RTP/RTSP
12. 2*DVB-C/2*DVB-T RF output
13. Support IP null packet filter
14. Real-time output bit-rate monitoring
15. Update device through web based NMS port
16. Support LCD / keyboard operating, and network management (web)

 
 Principle Chart




 

 Specifications  
 

Input		8×HDMI inputs
		1 ASI input, BNC interface
Video		Resolution		1920×1080_60P, 1920×1080_50P
				1920×1080_60i, 1920×1080_50i
				1280×720_60P, 1280×720 _50P
				720×576_50i, 720×480_60i
		Encoding		MPEG-4 AVC/H.264
		Bit-rate		0.8Mbps~19Mbps (each channel)
		Rate Control		CBR/VBR
		GOP Structure		IBBP
		Advanced Pretreatment		De-interlacing, Noise Reduction, Sharpening
Audio		Encoding		MPEG-1 Layer 2, HE-AAC (V2), LC- AAC Digital Dolby AC3 passthrough (for HDMI)
		Sampling rate		48KHz
		24-bit		Resolution
		Bit-rate		64Kbps~384Kbps each channel
Multiplexing		1 ASI input multiplexed with local 8 channels of TS
		PID remapping (automatically or manually)
		Accurate PCR adjusting
		Generate PSI/SI table automatically
Modulation	DVB-C	Standard	J.83A, J.83B, J.83C
		MER	≥42dB
		RF frequency	30~960MHz, 1KHz step
		RF output level	-30.0~ -10.0 dbm (77~97 dbµV), 0.1db step
		Symbol rate	5.0 - 9.0 Msps
		J.83A	Constellation		16/32/64/128/256QAM
			Bandwidth		8M
		J.83B	Constellation		64QAM, 256QAM
			Bandwidth		6M
		J.83C	Constellation		64QAM, 256QAM
			Bandwidth		6M
		RF out	2*RF DVB-C out
	DVB-T	Standard	EN300744
		FFT mode	2K, 8K
		Bandwidth	6M, 7M, 8M
		Constellation	QPSK, 16QAM, 64QAM
		Guard Interval	1/4, 1/8, 1/16, 1/32
		FEC	1/2, 2/3, 3/4, 5/6, 7/8
		MER	≥42dB
		RF frequency	30~960MHz, 1KHz step
		RF output level	-30.0~ -10.0 dbm (77~97 dbµV), 0.1db step
		RF out	2*RF DVB-T out
Stream output		2*ASI to mirror one MPTS output, BNC interface
		8 SPTS over UDP,RTP/RTSP, 1000Base-T Ethernet interface (unicast / multicast)
System function		LCD/keyboard operating, Web NMS supporting
		Ethernet software & hardware upgrade
Miscellaneous		Dimension (W× L× H)		482mm×455mm×44mm
		Approx weight		4.5kg
		Temperature		0~45ºC(work),  -20~80ºC(Storage)
		Power		AC 100V-220V±10%, 50/60Hz
		Consumption		25W

 
APPENDIX
 
INTERNAL TEST REPORT OF DELAY
 
(The values of average delay cover the progress from Encoding to Decoding)
 

Decoding Terminal	Encoding Details					Average Latency (ms)
	Single Source Interface	Bit Rate	Resolution	DTS Mode	Encoding Type
DVB-C/T HD STB	HDMI  SDI	14M	1080i@50	DTS=1 (Mode 1)	mpeg2	230
					H.264	310
				DTS=40 (Mode 2)	mpeg2	400
					H.264	440
			720p@50	DTS=1 (Mode 1)	mpeg2	220
					H.264	350
				DTS=40 (Mode 2)	mpeg2	300
					H.264	400
			576i@50	DTS=1 (Mode 1)	mpeg2	400
					H.264	500
				DTS=40 (Mode 2)	mpeg2	460
					H.264	570