Designed to combat the restrictions involved with the distribution of uncompressed, broadcast-quality, video signals over long distances, these modules, part of the yellobrik range manufactured by Lynx Technik, extend video circuits over distances of up to 10km using fibre optic cables. SDI video signals are supported up to 3Gb/s; DVB-ASI is also supported. The range includes single and dual-channel fibre transmitters and receivers, as well as transceiver modules with both transmit and receive paths to provide bi-directional video circuits over, depending on model, a pair of fibres or, using WDM multiplexing, a single fibre. Modules may be used alone, or mounted in an optional rack-mounting frame.
Convenient for use over long-distance, point-to-point links, the modules are also a useful solution where the maximum reach of copper cables is reduced, by the high throughput required for HDTV 3G SDI, to an inconveniently short length. All modules support hot-swapping and hot-plugging.
Common Specifications
| Video inputs: |
SDI video, DVB-ASI, 75ohms, BNC. Multi-standard operation from 270Mbit/s to 3Gbit/s, auto-detecting. |
| Multi-rate re-clocking: |
270Mbits/s, 1.48Gbits/s, 2.97Gbits/s. |
| Return loss: |
Better than 15dB to 1.5Gbits/s and 10dB up to 3Gbits/s. |
| Automatic cable equalisation: |
250m, 270Mbits/s; 140m, 1.5Gbits/s; 80m, 3Gbits/s (Belden 1694A cable). |
| Video standards: |
SMPTE 424M, SMPTE 292M, SMPTE 259M, DVB-ASI. |
| Video outputs: |
SDI video, DVB-ASI, 75ohms, BNC. |
| Fibre connections: |
Singlemode using LC/PC connector; SMPTE 297M - 2006. |
| Maximum transmission distance: |
10km. |
| Wavelength: |
1310nm |
| Optical power: |
-5dBm (see individual options for OTX 1812 and ORX 1802) |
| Power source: |
9-14V DC (AC adapter supplied) |
| Dimensions: |
105 x 40 x 22mm |
Included accessories: All yellobrik modules are supplied each with a plug-top power supply with UK, US and European plug fittings and hook and loop mounting pads.
Optional accessories: Power adapter cables for 12V working, alternative power supplies and a rack-mounting frame for to 14 yellobrik modules are available. Please see Lynx Yellobrik Power Supplies And Mounting Accessories.
OTX 1812 - 3G SDI to Fibre Transmitter - 1 channel - SDI loop-through
Using the same basic module, four versions are available, providing an SDI input and optical output. Each version has a different SFP installed, providing LC, ST or SC singlemode fibre connections or an LC version suitable for multimode fibre. Singlemode versions offer up to 10km range for 3G SDI, the multimode version offers up to 300m for 3G SDI. A re-clocked SDI loopthrough output is also provided.
| OTX 1812 LC |
Singlemode LC. Wavelength: 1310nm. Optical power: -5dBm. 10km. |
| OTX 1812 SC |
Singlemode SC. Wavelength: 1310nm. Optical power: -5dBm. 10km. |
| OTX 1812 ST |
Singlemode ST. Wavelength: 1310nm. Optical power: -5dBm. 10km. |
| OTX 1812 MM |
Multimode LC. Wavelength: 850nm. Optical power: -5dBm. 300m. |
The OTX 1812 may typically be paired with a fibre optic to SDI receiver, such as a yellobrik ORX 1802, to achieve a cost-effective optical transmission / receiver system for signals up to 1080p60 (3Gbit/s), while preserving full uncompressed quality.
The OTX 1812 will auto-detect any connected video signal from 270Mbit/s to 3Gbit/s according to SMPTE 424M, SMPTE 292M and SMPTE 259M standards, as well as DVB-ASI.
OTT 1812 - 3G SDI to Fibre Transmitter - 2 channels
This has two independent video to fibre transmitters. When paired with the ORR 1802 dual-channel fibre to SDI receiver, this provides a two-channel optical transmitter-receiver system for signals up to 3Gb/s (1080p60). It may also be used to feed the receive ports of two separate ORX 1802 modules.
| Fibre connections: |
2x output ports |
| Transmit wavelength: |
1310nm, -5dBm |
OTT 1412 - 12G SDI to Fibre Transmitter - 2 channels
Has the same functionality as the OTT 1812 however OTT 1412 is capable of signals up to 12Gbit/s, 4096x2160 at 60Hz. Each of the two independent channels can auto-detect and re-clock any 1.5Gbit, 3Gbit, 6Gbit, or 12Gbit SDI source.
| Fibre connections: |
2x output ports |
| Transmit wavelength: |
1310nm, -5.5dBm. |
ORX 1802 - Fibre to 3G SDI Receiver - 1 channel - 2 SDI outputs
Using the same basic module, four versions are available providing a fibre input and two SDI outputs. Each version has a different SFP installed, providing LC, ST or SC singlemode fibre connections or an LC version suitable for multimode fibre.
The ORX 1802 may typically be paired with an SDI to fibre optic transmitter, such as a yellobrik OTX 1812 or OTX 1842, to achieve a cost-effective optical transmission / receiver system for signals up to 1080p60 (3Gbit/s), while preserving full uncompressed quality.
The ORX 1802 is compatible with any video signal according to SMPTE 424M, SMPTE 292M and SMPTE 259M standards, as well as DVB-ASI.
ORR 1802 - 3G Fibre to SDI Receiver - 2 channels
This has two independent fibre to video receivers in a single module. When paired with a fibre transmitter such as the OTT 1812, this module provides a two-channel optical transmitter-receiver system for signals up to 3Gb/s (1080p60). It may also be fed by two separate OTX1812 modules.
| Fibre connections: |
2x input ports |
| Receive wavelength: |
1260nm to 1620nm |
| Sensitivity: |
-3dBm to -19dBm |
ORR 1402 - 12G Fibre to SDI Receiver - 2 channels
Has the same functionality as the ORR 1802 however can process input up to 12Gbit/s.
| Fibre connections: |
2x input ports |
| Receive wavelength: |
1260nm to 1620nm |
| Sensitivity: |
-10dBm/-9dBm at 12Gbit/s |
OTR 1810 - Transceiver - Bi-directional
This as an independent fibre receiver and transmitter in a single package. Paired with another OTR 1810 module, the combination provides a single-channel bi-directional transmission system for signals up to 3Gb/s (1080p60). Using the same basic module, two versions are available; each has a different SFP installed, providing either singlemode or multimode fibre connections on LC fibre. Singlemode versions offer up to 10km range for 3G SDI, the multimode version offers up to 300m for 3G SDI. They may also be used in conjunction with the appropriate ports and fibre modes of OTX 1812, OTT 1812, ORX 1802 and ORR 1802 modules.
Fibre connections: 2x fibre optic ports, one transmit, one receive.
OBD 1810 - Transceiver - Bi-directional
The OBD 1810 modules are supplied in pairs, one Type A and one Type B, which work together. They are linked together by a single fibre, using WDM multiplexing (see below), to provide a bi-directional (send and receive) transmission system for signals up to 3Gb/s (1080p60)
Fibre connections: 1x fibre optic port (bi-directional). WDM using 1310nm and 1550nm wavelengths.
Optical budget: 14dB
Technical note: WDM
WDM is wavelength-division multiplexing. This technology multiplexes a number of optical carrier signals onto a single fibre by using different wavelengths of light. This can be used to increase the capacity of the fibre or to enable bi-directional communication over a single fibre.