Lynx Technik yellobrik OTR-1442

4K Fiber Transmission System

The OTR 1442 is a self contained fiber transmission kit for the transport of 4 discreet SDI signals (or 4K / 12G uncompressed) over a single fiber link.

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The OTR 1442 is a self contained fiber transmission kit for the transport of 4 discreet SDI signals (or 4K / 12G uncompressed) over a single fiber link. The kit includes the fiber transmitter, fiber receiver and power supplies. This is an ideal solution for the transmission of multiple uncompressed SDI streams, or 4K up to 20km with zero losses.

Each SDI channel is fully independent. For 4K use the signal is split over 4 separate 3G SDI links (12G) and supports full 4K resolution at 60fps. The system can also be used for any combination of SDI signals, with a mix of formats and bit-rates if required. Each channel will automatically detect and reclock SDI bit rates of 270Mbit, 1.48Gbit and 2.97Gbit.

An expansion port is included for the connection of the OTR 1441 to add 4 more SDI channels (or 8K / 24G over a single fiber), or add bidirectional Ethernet or Serial RS 232 data into the link.

LED Indicators are provided for channel presence and power. An optional 19” rack mount tray is available which can accommodate up to 4 modules (RFR 1018).

Note. Internal CWDM optical multiplexing is utilized within the modules. This kit should be considered a self contained point to point solution and should not be integrated into external CWDM systems. An expansion port is included on each module which can be used to add additional SDI channels from the OTR 1441, or a bidirectional Ethernet or Serial RS232 signal.

  • Support for 4 independent 3G/HD/SD-SDI channels
  • Transport 4K (uncompressed) up to 20km (12 miles)
  • Each channel supports resolutions up to 1080p/60Hz
  • Each channel individually reclocked
  • Embedded audio / metadata support for each channel
  • Integrated expansion port to add more channels
  • LED indicators for channel activity and power
  • Kit includes transmitter, receiver and power supplies
  • Optional 19” Rack tray to mount (max) 4 modules
More Information


  • 4 x multi-format 3G/HD/SD-SDI inputs [OTX 1442] 4 x multi-format 3G/HD/SD-SDI outputs [ORX 1442] 75 Ω BNC connections
  • SMPTE 259M-2008 , SMPTE 292-1:2012, SMPTE 292-2:2011 SMPTE 424M-2006 , DVB ASI
  • Multi-standard / Multi-format operation auto-detect. Multi-rate reclocking: 270Mbit / 1.5Gbit / 3Gbit
  • Electrical Return Loss: >15dB from 5MHz to 1.5GHz, >10dB from 1.5GHz to 3GHz
  • Automatic Cable EQ (Belden 1694A cable) 340m@270Mbit, [email protected], 120m@3Gbit

Fiber I/O

  • 1 x Fiber optic I/O port (COM port)
  • 1 x Fiber optic expansion port (UPG port) LC/PC connections - Single Mode
  • SMPTE 297M - 2006
  • Internal CWDM Multiplexing
  • Wavelengths : 1350nm, 1370nm, 1390nm, 1410nm Optical budget: 10.6dB
  • Maximum distance [typical]: 20km (12 miles)
  • Fiber activity LEDS for each channel


  • +12VDC nominal. ORX1442 = 4.4W, OTX 1442 = 5.4W 
  • Supports external power input from 9 - 17 VDC
  • 2 x Power LEDs provided


  • 170 x 99.7 x 40.5mm (6.7” x 3.9” x 1.6) - (each Module) Weight: 600g (21.1oz) net - (each module)



  • 5 - 40oC (41 - 104oF) 90% Humidity (non condensing)
  • OTX 1442 - 4K Fiber Transmitter module
  • ORX 1442 - 4K Fiber Receiver module
  • 2 x 12VDC [brick] power supplies