I am looking at your H-12SDI-QAM-IPLL unit, and I would like to request some information from you to see if this would be the best option for my setup. I am currently running a mixture of old analog CCTV cameras and new IP cameras. I am looking at replacing some of our analog cameras with HDSDI cameras, which we currently modulate and send out to our TV system. I want to upgrade that TV system to the HDSDI camera feeds, with the possibility of future upgrades to IPTV feeds. This box of yours looks like the perfect piece of gear to accomplish what I am looking to do, as well as make it a smooth transition into the IPTV system world. I would like to have audio on at least 1 of the HDSDI feeds. If I used a Blackmagic audio HDSDI encoder before your unit, would it pass the audio through to the TV system? And your site says this unit has low latency.. how low are we talking? I am ultimately looking for a system that has almost no latency at all. Also, what would be the chances of this unit being able to interface with our Bosch IP camera system? In your expertise in this field, do you foresee any issues with this kind of setup, or do you recommend doing it in a more efficient way?

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Accepted Answer

Sounds like you have a few things going on here. Each SDI input on this unit can carry 2 channels of audio, so you're fine there. If you want zero latency, then you need to forgo encoders and go straight over fiber to monitors, using SDI over fiber converters like this one: https://thorbroadcast.com/product/1-sdi-hdsdi-over-fiber-mini-extender.html Encoders will always have latency; however, things like resolution and infrastructure are the biggest causes of latency. We use the best chipsets on the market in these units, there is nothing faster. I can have an engineer give you a call and explain in detail if you like. That being said, you'd probably be looking at anywhere from 250-350ms based on what you have above. If you have CCTV cameras that are SDI, then you would use our modulator to convert to RF. If you have IP cameras and want to convert to RF, you would need something different. We have converters for that as well: https://thorbroadcast.com/product/iptv-to-16-32-clear-channel-rf-qam-atsc-modulator.html/122 I'm kind of curious why you implemented both SDI and IP cameras; I think this may cause some differences in real-time transmission of those signals because of the conversion thereafter.

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Input	12 HD-SDI inputs with CC 1 ATSC or (DVB-C QAM optional) tuner for re-mux, F-type interface 256 IP input over UDP and RTP, DATA1, RJ45
Video	Resolution	Input		19201080_60p, 19201080_50p, 19201080_60i, 19201080_50i, 1280720_60p, 1280720_50P, 720480_60i, 720576_50i
		Output		19201080_60p, 19201080_50p, 19201080_60i, 19201080_50i, 14401080_60i, 14401080_50i, 1280720_60p, 1280720_50P, 720576_50p, 720576_50i, 720576_30p, 720576_25p, 720480_60p, 720480_60i, 720480_30p, 720480_25p, 320240_60p, 320240_50p, 320240_30p, 320240_25p, 320180_60p, 320180_50p, 320180_30p, 320180_25p, 960540_50i, 704576_50i, 704480_60i, 640576_50i 640480_60i, 544576_50i, 544*480_60i,
	Encoding	MPEG2 & MPEG4 AVC/H.264
	Bit-rate	0.8~19 Mbps for H.264 encoding 1~19 Mbps for MPEG-2 encoding
	Rate Control	CBR/VBR
	GOP Structure	GOP B Frame: 0-3, GOP P Frame: 0-6
	Advanced Pretreatment	De-interlacing, noise reduction
Audio	Encoding	MPEG1 Layer II, MPEG2-AAC, MPEG4-AAC, Dolby Digital AC3 (2.0) encoding, AC3 (2.0/5.1) pass-through
	Sampling rate	48 kHz
	Resolution	24-bit
	Bit-rate	64 Kbps-320 kbps each channel
Multiplexing	Maximum PID Remapping	256 input per channel
	Function	PID remapping (automatically or manually)
		Accurate PCR adjusting
		Generate PSI/SI table automatically
Scrambling	Maximum simulcrypt CA	4
	Standard	EN300 429/ITU-T J.83A/B
	Connection	Local/remote connection
Modulation	DVB-C	QAM Channel: 16 non-adjacent carriers output (maximum bandwidth 192 MHz) Standard: EN300 429/ITU-T J.83A/B MER: >=40 dB RF frequency: 50~960 MHz, 1 kHz step RF output level: -20~+10 dBm (87~107 dBuV), 0.1 dB step Symbol Rate: 5.0 Msps~7.0 Msps, 1 ksps stepping Constellation: 16/32/64/128/256QAM
					J.83A	J.83B
		Constellation			16/32/64/128/256QAM	64/256 QAM
		Bandwidth			8M	6M
	DVB-T	Standard			EN300744
		FFT mode			2K, 4K, 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			>=42 dB
		RF frequency			50~960 MHz, 1 kHz step
		RF out			8*RF COFDM DVB-T out (8 carriers combined output)
		RF output level			-20~+10 dBm (77~97 dBuV), 0.1 dB step
Stream output	RF output (F-type interface)
	16 MPTS output over UDP and RTP/RTSP as a mirror of 16 DVB-C carriers, 8 MPTS output over UDP and RTP/RTSP as a mirror of 8 DVB-T carriers (model dependent) 1*1000M Base-T Ethernet interface
System function	Network management (WEB)
	English language
	Ethernet software upgrade
Miscellaneous	Dimension (WxLxH)		482 mmx440 mmx44 mm 1RU Rackmount
	Approx weight		8 kg
	Environment		0~45 deg C (work); -20~80 deg C (Storage)
	Power requirements		AC 110V+/- 10%, 50/60Hz, AC 220 +/- 10%, 50/60Hz
	Power consumption		20W

12 HD/SD-3G SDI with 608/708CC (Closed Captioning) CATV RF MODULATOR ATSC

Description

CATV Digital Modulator with 12 SDI Inputs + ATSC/QAM RF input, IPTV TS input and CATV RF COAX output + IPTV TS output + ASI output - LOW LATENCY - Up to 1080p/60

INPUTS

OUTPUTS

SDI Multiplexer

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