HDMI Multiplexer over Coax, Hdmi to CATV to Hdmi

DVB-T model description

12 HDMI input to CATV RF DVB-T OFF AIR Modulation Output and IPTV output. PN: H-12HDMI-DVBT-IPLL

Description

12 HDMI Channels to CATV RF Coax Digital Modulator QAM, ATSC, DVB-T, ISDB-T, format up to 1080p60 low latency with IPTV Streamer and ASI Out

The new high capacity H-12HDMI-QAM-IPLL Encoder Modulator from Thor Broadcast has a new sophisticated redesigned platform for enabling modulation of up to 12 HDMI sources and 12 CVBS CC(Closed Caption) sources simultaneously. This unit has the ability to ingest IP Transport Streams and multiplex them among the RF output channels, similarly you can also input a single ATSC (or other RF modulation standard) and add its transport streams among the QAM output. This unit comes standard with a plethora of options to help you add extra transport streams from various media to build your own RF headend quickly and easily without extra hardware.

The H-12HDMI-QAM-IPLL supports MPEG2 and MPEG-4 AVC/H.264 video encoding and MPEG1 Layer II audio encoding (MPEG-2 AAC, MPEG-4 AAC Optional), Dolby Digital AC3, as well as AC3 pass through.

This unit has the ability to multiplex, create, and add program streams to your RF QAM cable channels cost-effective design make this device widely used in variety of digital distribution systems such as CATV headend cable systems

Create your own digital signage systems, and add HDMI sources to your existing QAM cable system in a single 1RU high density encoder modulator from Thor.

HDMI MULTIPLEXER

The Thor Broadcast HDMI Encoder modulator can be set up as a multi-channel video switcher so you can put multiple videos on one RF 6mhz frequency.

Since QAM 256 contains 38Mbps data storage, it means we can use all that bandwidth to place several programs via multiplexing on a single RF channel, each 6Mhz can carry any encoded video bitrate so long as they don't exceed the 38mbps total. For example, if we have a 4 source modulator, we can set the encoded bit rate on each video to 9.5Mbps, so 9.5 x 4 = 38Mbps. We can fit all of those programs in one QAM 256 channel.

So let's say that we choose 57mhz, which is CH2 on the QAM RF spectrum, we will be able to modulate 4 video's onto channels 2.1, 2.2, 2.3, 2.4 simultaneously.

This is important in case we want to insert multiple video programs on limited RF space occupied by different channels from the cable company; or other modulators creating channels in your CATV lineup.

Features

12 HDMI inputs with 12 CC inputs via CVBS
(Data 1 port) over UDP and RTP
MPEG1 Layer II; Dolby AC3, AC3 pass through ; MPEG-2 AAC, MPEG-4 AAC
HD (1080i/720p) to SD (576p/480p) downscale conversion
1MPTS and 24 SPTS IP (DATA1 and DATA2 port) output over UDP, RTP/RTSP
ASI output mirrors one of the RF carriers
PID remapping/ accurate PCR adjusting/PSI/SI editing and inserting
Control via web management NMS
16 Groups Multiplexing/Scrambling/ DVB-C QAM ANNEX A and B Modulating (based on RF)
8 Groups Multiplexing/ DVB-T/ATSC Modulating (based on RF)
6 Groups Multiplexing / ISDB-T Modulating (based on RF)
Up to 16 MPTS IP (Data2 Port Only) output over UDP, RTP/RTSP (# of MPTS is based on RF standard of device) (16MPTS for DVB-C; 8MPTS for DVB-T/ATSC; and 6MPTS for ISDB-T)

Drawings

Application Examples

12 channel HDMI + 12 Channel SDI Modulation Solution

Model Selection

H-12HDMI-QAM-IPLL - 12 HDMI input to CATV RF QAM (CABLE) Modulation Output and IPTV output -Low Latency
H-12HDMI-ATSC-IPLL - 12 HDMI input to CATV RF ATSC OFF AIR Modulation Output and IPTV output -Low Latency
H-12HDMI-DVBT-IPLL - 12 HDMI input to CATV RF DVB-T OFF AIR Modulation Output and IPTV output -Low Latency
H-12HDMI-ISDBT-IPLL - 12 HDMI input to CATV RF ISDB-T OFF AIR Modulation Output and IPTV output -Low Latency

Specification

Input	12 HDMI inputs 12 CC (Closed Caption, EIA608/EIA708) 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
	Resolution Downsacle	1080i/720p to 576p/480p
	Encoding
		MPEG2 & MPEG4 AVC/H.264
	Bit-rate	0.8~19Mbps each channel
	Rate Control	CBR/VBR
Audio	Encoding	MPEG1 Layer II, AC3 pass through (MPEG-2 AAC, MPEG-4 AAC Optional)
	Sampling rate	48KHz
	Audio Gain	0-400% adjustable
	Bit-rate	64~320Kbps each channel (each channel)
Multiplexing	Maximum PID Remapping	180 input per channel
	Function	PID remapping (automatically or manually)
		Accurate PCR adjusting
		Generate PSI/ SI table automatically
Stream output	1 MPTS and 24 SPTS IP output over UDP and RTP/RTSP, 2*1000M Base-T Ethernet interface, Data 1 and Data 2 1 ASI output mirros the MPTS output
System function	Network management (WEB)
	Ethernet software upgrade
Miscellaneous	Dimension (W×L×H)	19"×17.3"×1.7mm 1RU Rackmount Chassis
	Approx weight	8kg - 16lb
	Environment	0~45°C (Operational); -20~80°C (Storage)
	Power requirements	AC 110V± 10%, 50/60Hz, AC 220 ± 10%, 50/60Hz

Question and Answers

Question:
As you know, the manual states that I am supposed to use DATA 2 for the IP Stream output. As we noted under the IP Stream settings, DATA 2 is the only port that is referenced for IP Stream output. I can prove that DATA 2 is the IP Stream output, as when I disable the TS output on DATA 2 my data activity at the switch ceases on both Data 1 and Data 2 ports. Also, when I have the TS output enabled for Data 2, I only get switch activity when Data 2 is connected to the switch. Disconnecting Data 2 while Data 1 is still connected stops the switch activity. Another observation: When I have set the DATA 1 IP to 10.0.17.20, I can ping this address when either the DATA 1 or the DATA 2 cable is connected. This tells me that DATA 1 and DATA 2 are using the same IP Address.

Answer:
DATA1 is GE port and for IP input, DATA2 is GE port and for IP output. DATA3 is for upgrade encoding module. DATA1 and DATA2 are share port. same IP for them . it's like a small 2 layer switch, through many ports but only have one IP address. If you need IP input and output at the same time, please connect DATA1 and DATA2 to one VLAN.

Question:
When you were helping us with configuration, When I had asked about RF channels output 13-16, you mentioned they could be used for the local antenna connection. So, Is it possible? how would I proceed? I have an HD ATSC antenna hooked up to the RF Input on the front is that a good starting point? In TS Config, #7: Tuner 1 (prog:0) has no dropdowns.

Answer:
Yes, you can connect the standard ATSC antenna to the RF input. Please Center ATSC frequency for your local programming, you can find it in this nocable.org website by typing your zip code For example in Torrance, I can see a strong signal CH 31, center frequency 575Mhz KCBS + 1 subchannel CBS LOS ANGELES, CA 2 N (28 miles) UHF 572 Mhz Set this center frequency in the tuner and Parse this input in TS tab, it will find all TS' in this channel, you can select any of them and move it to the QAM frequency output.

Question:

Looking at the 12 HDMI version so we can hook up some computer players to play out still images for menu boards/graphics

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2

I would love to know those options! We may have future expansions, but the best thing I liked about this is I could cram 6 sub-channels on each channel, I am wanting to add in as few channels as possible for right now.

And we would just need the RF output, but we may investigate IP solutions in the future.

We are now stuck into pushing slides out for menu boards and logos around the building, we have some computers that auto boot into playing graphics full screen that we can update on the fly with jpegs or whatever we need. I am wanting to take those, push them in to our RF system so we aren’t having to sneaker-net usb drives to the TV’s anymore.

In addition to that, (separately, but I’d like to generate some numbers for my boss so we can hopefully futureproof now vs react later) I am looking at needing a RF over fiber since our main head end (our plant/distribution center) is getting full (equipment-wise), I want to expand to our second location since we will have more buildings coming online in the future, and I am seeing that we may need more of these still graphics/computer feeds.

Answer:

That 12 Channel HDMI Encoder modulator

If you just plan on displaying still images, we do have other options as well, if you need a total of 12 HDMI inputs, you can just use an RF combiner.

Do you just need the RF output? Or do you need the IP output as well?

Any more pertinent details about your application can help us point you in the right direction for the gear that best fits your needs.

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2

Are you currently doing 6 sub-channels per RF CATV Frequency right now?

QAM 256 is relegated to 38Mbps of data rate.

So theoretically, if you're just putting still images on the screen that could work just fine, each stream would need to be encoded at about 6mbps (38/6 )

We do not suggest that many programs per RF if they're actual video programs.

We have the perfect solution for RF over fiber, several different units, please let me know what is your Optical fiber distance and if this is a point to point or point to multipoint application

Those are the links to the TX and RX for your reference.

https://thorbroadcast.com/product/32-mw-catv-rf-over-fiber-tx-45-870-mhz.html

https://thorbroadcast.com/product/catv-rf-fiber-receiver-high-rf-power-rack-8230.html