What is an MPO connector
MPO stands for Multi-fibre Push On. This connector was developed in the late 1980’s by Japan’s Nippon telegraph and telephone corporation (NTT).
The connector can hold from 4 to 72 fibres. We use the 12 & 24 fibres version at present. The process to terminate higher fibre count connectors are very difficult and usually unsuccessful.
The MPO connector family is defined by two existing standards. Internationally the MPO is defined by IEC-61754-7. In North America the MPO is defined by TIA-604-5 (also called FOCIS 5).
What is MTP?
MTP is the trademark name of US CONEC. An MTP is a high-performance MPO connector. The MTP is fully compliant with IEC-61754-7 and TIA-604-5 (FOCIS 5) and is compatible with standard MPO connectors and vice versa.
Features & Benefits of MTP
There are many different makes of MPO connector on the market (Furukawa, Sumitomo, Fujikura).
The MTP has features that are totally unique (and patented).
Unique Floating Ferrule
This provides protection during side load and a more reliable mating between two connectors.
Mechanical Performance
MPO (Red) Vs MTP (Blue)
Removable Housing
The housing can be removed to allow removal/addition of guide pins (thus changing connector gender). This also allows re-work of the connector end face.
Recessed Guide Pin Clamp
The recessed pin clamp prevents gender change from the front of the connector.
Oval Spring
The MTP has an oval spring. The MPO has a round spring. The Oval spring is designed to prevent mechanical damage to the ribbon cable during the use of the connector.
Elliptical Guide Pin Tips
The MTP has elliptical guide pin tips which are designed to prevent wear and tear on the guide pin holes during mating. The MPO has chamfered guide pin tips which have a sharp edge and cause wear.
Black – 50uM Multimode
Beige – 62.5uM Multimode
Green – Standard Single-mode
Mustard – MTP Elite Low-loss Single-mode
Colour coded connector bodies- Make connector fibre types easily identifiable.
The MTP Cabling System
The cable system is made up of a few key parts:
- Trunk Cables
- Fan Outs
- Patch Panels
- Cassettes
Trunk Cables
Trunk cables are installed within the building and connected between patch panels or cassettes
Fan Outs
There are two main types of fan outs:
- Tight Buffered
- Ruggedized
The tight buffered version is used within panels and cassettes.
The ruggedized version is used to directly connect to equipment or panels.
Fan outs allow transition from MTP to ordinary connectors (LC, SC and so on).
Patch Panels
Patch Panels will usually contain a fan-out. Trunk cables or ruggedized fan-outs are plugged into the back of the panel. The panel can then be mounted in a cabinet
Modular Cassettes
Cassettes are essentially a more compact version of a patch panel. Cassettes are fitted into a cassette panel which holds three cassettes in 1U of space or they can be mounted in a 3U LGX chassis which holds fourteen cassettes. Modular cassettes are perfect for Data Centre use where high density is required.
