8 Ch SD/HD 3G-SDI Over Single Fiber with LOOP OUTPUTS

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Description Features Drawings Model Selection Specification Support

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

There are devices allowed to instantly move uncompressed SDI signals up to 3G 1080p/60Hz from place to place over only one 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 to utilize one output and also has 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."


  • CWDM optical multiplexing technology, Each SDI signal has its own laser and its beeing convert to the different optical wavelength
  • Compliant with SMPTE ST 425-3, ST 425-5, 259M-2006, 292-2006, 424M-2006
  • Ttransmission 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
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.

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


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
Dimensions (L x W x H) 480mm x 225mm x 88mm / 19 inches x 8.86 inches x 3.46 inches
Weight 8-15lb - 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 Watt Depending On Configuration
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