8 channel 3G SDI 4K/UHD over fiber converter Transmitter receiver with loop output

Description

The F-8SDI-3G-LOOP-TX/RX is an 8-channel 3G SDI fiber optic multiplexer with SDI loop-outs on the optical transmitter (TX) and dual outputs on the optical receiver

These devices allow uncompressed SDI signals up to 3G 1080p/60Hz to be instantly moved from place to place over a single-mode fiber up to 20 km. With an additional very desirable option, the transmitter with 8 SDI inputs has loop output, and the optical receiver has dual outputs, allowing one output to be utilized while also providing the ability to monitor on the second mirrored output .

It supports the following optical transport signals:

8 channels of HD/SD/3G-SDI signals over one single-mode fiber.
4 channels of 4K/UHD signals at 30 fps over one single-mode fiber.
2 channels of 4K/UHD signals at 60 fps over one single-mode fiber.

Features

CWDM optical multiplexing technology, each SDI signal has its own laser and is being converted to the different optical wavelength
Compliant with SMPTE ST 425-3, ST 425-5, 259M-2006, 292-2006, 424M-2006
Transmission of SMPTE 305M-2005, 310M-2004, 344M-2000,
SDI with or without embedded audio and data
Signal is equalized and re-clocked prior to fiber optic transmission
Receiver features re-clocked SDI outputs
Pathological patterns over entire link budget
Single Mode fiber up to 20km
Supports 3G/HD/SD-SDI inputs with or without embedded audio and data
Supports 4K/UHD resolutions up to 60 fps
21 dB Optical Link Budget @ 2.97 Gbps for High Power, Longer Distance version
Standard & High Powered, long distance transmitter versions available
1RU 19" rackmount version
Support SDR and HDR ( High Dynamic Range)

Drawings

Model Selection

F-8SDI-3G-LOOP-TX/RX is an 8-channel 3G SDI fiber optic multiplexer with loop-outs on the optical transmitter (TX) and dual outputs on the optical receiver.

Accessories & Upgrades

Specification

Support	2 CH 4K/UHD signals at 60 fps 4 CH 4K/UHD signals at 30 fps 8 Ch SD/HD/3G SDI up to 1080p/60
*All Specifications Subject to Change Without Notice
Supported Standards	SMPTE ST 425-3, ST 425-5, 259M, 292, 297-2006, 424M-2006, 305M, 310M, 344M, DVB-ASI
*Optical Characteristics* Wavelength	1310 nm CWDM Band 1271nm, 1291nm, 1311nm, 1331nm 1351nm, 1371nm, 1411nm, 1431nm 1550 nm CWDM Band 1471nm, 1491nm, 1511nm, 1531nm 1551nm, 1571nm, 1591nm, 1611nm Other Wavelengths Available By Request DWDM up to 160 Ch/Fiber By Request
Fiber Cable	Single Mode
Optical Data Rate	Up to 3 Gbps
Optical Source	DFB Laser Module - CWDM
Optical Budget	15 dB - Standard 25 dB - Long Range
Fiber Connectors	ST/PC
*Electrical Characteristics*
Input	Any Serial Digital Signal up to 3.0 Gbps
Input Level	1.00 V Peak to Peak
I/O Impedance	75 Ohm
Electrical Connectors	BNC - 75 Ohm
*Mechanical/Environmental*
Dimensions (L x W x H)	480mm x 225mm x 88mm / 19 inches x 8.86 inches x 3.46 inches
Weight	8-15 lb - Depending On Configuration
Temperature Range	Operating: -10C to +55C Storage: -30C to +70C
Humidity Range	0 to 95%, non-condensing
Power	100 - 240 VAC Auto Switching PSU 10 - 30 Watts Depending On Configuration

Question and Answers

Question:
Do these support HDR?

Answer:

Yes, the F-8SDI-3G-LOOP-TxRx can transport HDR video.

The unit is a transparent, uncompressed SDI-over-fiber transport system and supports SD/HD/3G-SDI signals up to 3.0 Gbps per channel.

It does not process or modify the video signal, so an HDR signal carried within a supported SDI format will pass through the fiber link transparently.

If your signal is 1080i/60 or 1080p/60, this model supports HD/3G-SDI transport up to 3G-SDI.

If your application is 2K or 4K, I would recommend our 12G-SDI over Fiber models instead:

https://thorbroadcast.com/product/12g-sdi-over-fiber-2-4-or-8-inputs.html/278

These are available with 2, 4, or 8 SDI channels and use CWDM technology, allowing multiple independent SDI signals to be transported over a single strand of single-mode fiber. The transport is transparent and uncompressed, preserving the SDI video, embedded audio, and ancillary data. The 12G models support up to 4K 3840×2160 @ 60 fps.

The main question is the resolution and SDI format of your HDR source.

If you can send me the exact output format , for example 1080p/60, 2K, or 4K/60 , we can confirm the correct model.

Question:
Can you just confirm that the F-8SDI-3G-TXRX-RM will pass 1080p SDR and HDR?

Answer:

This unit utilizes direct conversion from electrical 3G SDI to optical CWDM wavelengths, with each signal being multiplexed on its own designated light wavelength.

It supports all video formats, including both HDR and SDR, as 3G SDI handles both formats, and we are simply passing the signal through.

So, the short answer is YES-we have them in stock and can ship today if required.

SDR (Standard Dynamic Range) and HDR (High Dynamic Range) are video standards or formats that define the way brightness, contrast, and color are handled in video signals.

How to Name SDR and HDR Correctly:

SDR (Standard Dynamic Range): Refers to the traditional method of representing video, where the range of luminance and color is limited compared to HDR.
- It's not a protocol but rather a display standard.
HDR (High Dynamic Range): Refers to a method of displaying video with a much wider range of brightness and a broader color gamut than SDR.
- It's not a protocol but a set of standards or formats.
- Common HDR formats include:
  - HDR10: The most widely used open HDR format.
  - Dolby Vision: A proprietary format developed by Dolby, offering dynamic metadata for scene-by-scene brightness adjustment.
  - HLG (Hybrid Log-Gamma): A format designed for backward compatibility with SDR displays, often used in broadcast.
  - HDR10+: An improvement over HDR10 that includes dynamic metadata like Dolby Vision but is open and royalty-free.
- SDR (Standard Dynamic Range):
  SDR refers to video content with a standard brightness and color range.
- Brightness Range: Limited to about 100 nits (a measure of luminance).
- Color Gamut: Uses standard color spaces, such as Rec. 709, which is sufficient for most traditional displays.
- Applications: SDR is suitable for most existing TV broadcasts, online video streaming, and traditional production environments.
- HDR (High Dynamic Range):
  HDR is an advanced video format that offers a wider range of brightness, contrast, and color than SDR.
- Brightness Range: Can reach up to 1,000 nits or more, allowing for much brighter highlights.
- Color Gamut: Supports wider color gamuts, such as Rec. 2020, for more vivid and accurate color reproduction.
- Benefits:
  - Enhanced contrast: Greater detail in both shadows and highlights.
  - More lifelike colors: Allows viewers to see images closer to what the human eye perceives in real life.
- HDR Standards: There are several HDR standards, such as HDR10, HLG (Hybrid Log-Gamma), and Dolby Vision.
- Why Use SDI for 1080p SDR and HDR?
- SDI can carry uncompressed high-definition signals, making it ideal for maintaining the highest video quality during production.
- For HDR, SDI is preferred because it can handle the increased data rate required for wider dynamic range and color.
- SDI connections also support embedded audio, meaning audio can be transmitted along with the video in the same cable.
- Key Differences Between SDR and HDR Aspect SDR HDR Brightness Up to 100 nits Up to 1,000 nits or more Color Gamut Rec. 709 Rec. 2020 or DCI-P3 Contrast Standard Enhanced (better shadow & highlight detail) Visual Impact Good for most displays More immersive, lifelike images