MTP vs MPO Connectors
Compare the MTP connector with other MPO multi-fibre connectors
The term MPO stands for Multi-fibre Push On and is a specific interface type. The MPO interface was developed to enable multi-fibre connectivity for higher density, higher bandwidth based applications requiring parallel or channel based optics. 12 and 24 fibre versions are currently used to direct connect into 40G and 100G transceivers and also used in high density fibre distribution areas. Higher fibre versions are also available (48, 72 fibre) but their use and deployment is currently limited.
The MTP® connector is specifically a brand of MPO interface connector that is owned by the leading US based optical R&D company US Conec. Like MPO it is based on the MT (mechanical transfer) ferrule technology which was developed by Nippon Telephone and Telegraph (NTT) during the 1980s.
MT Ferrule (Image Rights – US Conec Ltd)
1. A floating ferrule that aids in accurate alignment and improves performance of mated ferrules under stressed load conditions.
2. Elliptical guide pins that allows for better alignment by improving mating guidance and reducing hole wear.
Floating Ferrule (Image Rights – US Conec)
Pin Comparison (image rights – US Conec)
3. Removable housing allowing for smoother transition of gender types in the field and easier access to performance testing and re-work of the MT ferrule.
4. The MTP® connector has a metal pin clamp that centres and guides the push spring. This feature eliminates lost guide pins, centres the spring force and eliminates damage to fibre cables from the spring.
5. The MTP® connector spring design maxi-mizes ribbon clearance for twelve fibre and multi-fibre ribbon applications to prevent fibre damage.
6. The MTP® connector is offered with four standard variations of strain relief boots to meet a wide array of applications.
MTP Connector Housing (Image Rights – US Conec)
Boot variations (Image Rights – US Conec)
The MTP® connector is currently available in 4, 8, 12, 24, and 72 fibre densities for multimode fibre (50µm and 62.5µm core) and 4, 8, 12, and 24 fibre densities for single-mode fibre, as well as the MTP® Elite® (low-loss) single-mode connector in both 8 and 12 fibre densities. It is also important to note that the MTP® connector complies with the MPO standard as outlined in IEC standard 61754-7 and TI-604-5 and is therefore a fully compliant MPO connector and can interconnect directly with other MPO based infrastructures.
Independent verification and tests have continually re-enforced the MTP® connector as offering superior over-life performance when compared to standard MPO connectors.
This higher performance has resulted in wide adoption, not just by fibre cabling manufacturers, but also by switch, server and storage manufacturers.
Connecting to equipment with MTP® connectors is best done using optical fibre cables with MTP® connectors, although other MPO cables are likely to work but may not offer the same performance.
MTP® Connector 12 fibre
MTP® Connector 24 fibre