MPO fiber optic jumpers
Apr 29, 2024| 01 What is MPO?
MPO (Multi fiber Push On) fiber optic jumper is a high-density fiber optic transmission jumper composed of connectors and optical cables. The MPO connector is one of the MT series connectors, which is a multi-core and multi-channel plug-in connector. The MT series connectors use two guide holes with a diameter of 0.7mm on the left and right sides of the plug end face to accurately connect with the guide pins (also known as PIN pins).MPO fiber optic jumper products mainly include MPO pre terminated fiber optic jumper, MPO branch fiber optic jumper, and MPO fan-shaped fiber optic.
02 What are the common number of cores in MPO?
MPO connectors are typically available in 12 core, 16 core, and 24 core types. The 12 core MPO fiber optic patch cord is suitable for 40G networks, while the 24 core MPO fiber optic patch cord is suitable for 100G networks. 16 core or 32 core MPO fiber optic connectors are the ideal choice for achieving low latency and ultra high speed transmission in 400G networks.
03 What does MPO mean for male and female heads?
The MPO fiber optic connector includes fiber optic, sheath, coupling components, metal rings, pins (PIN pins), dust caps, etc. The male head contains two PIN pins, but the female head does not have this pin.
The connection between MPO connectors is precisely aligned through PIN pins, and during docking, a "click" must be heard to ensure it is locked with the adapter.
04 Three types of MPO line sequences
Type A: The fiber cores at both ends of the jumper are arranged in the same position, that is, 1 at one end corresponds to 1 at the other end, and 12 at one end corresponds to 12 at the other end. The orientation of the key keys at both ends is opposite, and the key up corresponds to the key down.
Type B: The arrangement of the fiber cores at both ends of the jumper is opposite, that is, 1 at one end corresponds to 12 at the other end, and 12 at one end corresponds to 1 at the other end. The orientation of the key keys at both ends is the same, that is, key up corresponds to key up, and key down corresponds to key down.
Type C: The MPO jumper for Type C is a pair of adjacent fiber cores that intersect, where one end of core 1 corresponds to the other end of core 2, and one end of core 12 corresponds to the other end of core 11. The orientation of the key keys at both ends is also opposite, and the key up corresponds to the key down.
05 MPO jumper application solution
1.Base-8 MTP/MPO optical cable for duplex fiber optic connection
Duplex fiber optic transmission links typically use duplex interconnect solutions. As shown in the figure below, the structured cabling solution allows for connection at both ends of a 10G duplex LC optical network. This solution deploys an 8-core MTP/MPO-LC distribution box at one end of the link, an MTP/MPO adapter panel, and an 8-core MTP/MPO-LC branch optical cable connection at the other end.
2.Used for parallel fiber Base-8 MTP/MPO optical cables
Parallel fiber optic transmission links can be divided into two solutions. The links at both ends can use 8-core to 8-core connections, 20 core or 24 core connections.
(1)8-core to 8-core connection
The Base-8 MTP/MPO parallel fiber optic transmission link directly connects two QSFP28 optical modules (such as 100G QSFP28 SR4) at both ends of the jumper. (It is recommended to use this type of direct connection within a short distance within a given rack or cabinet.)
(2)20 core or 24 core connection
Base-8 MTP/MPO optical cables can also be used to connect two 20 core or 24 core optical modules, such as 100G CFP SR10. The following diagram is based on the Base-8 MTP/MPO branch fiber optic cable solution, which provides the connection from one 100G CFP to another 100G CFP optical module. It uses a 24 core MTP/MPO to 3 * 8 core MTP/MPO branch fiber optic cable to transmit signals through the Base-8 MTP/MPO fiber optic cable.
3.Base-8 MTP/MPO optical cable for duplex parallel fiber optic connection.
There are two solutions for parallel to duplex fiber optic transmission links. The links at both ends can be connected using 8-core to 2-core and 20-core to 2-core connections.
(1)8-core to 2-core connection
The most common 8-core to 2-core connections are 40G-10G and 100G-25G transmissions. It is a direct connection solution for Base-8 MTP/MPO optical cables.
(2)20-core to 2-core connection
The parallel to duplex fiber optic transmission link can be achieved through a connection of 20 to 2 cores.
In this scheme, a 24 core MTP/MPO branch optical cable and an MTP/MPO-LC distribution box are used to connect 100G CFP optical modules and ten 10G SFP+optical modules. The 24 optical fibers are divided into three MTP/MPO-8 connectors, so they can be transmitted through ten duplex LC optical cables, achieving a connection of 20 to 2 cores throughout the entire link.
06 MPO Jumper Advantages
(1) The small size allows for an increase in wiring aperture, significantly increasing wiring density and saving space.
(2) Modular design, plug and play, saves installation time.
(3) According to different configuration requirements, corresponding structures can be selected to meet different wiring requirements.
(4) Has excellent optical and mechanical properties, with low insertion loss in high-speed network environments.
MPO fiber optic connectors and fiber optic jumpers provide a simple and easy to manage fiber optic cabling solution, widely used in FTTH and data centers that require high-density integrated fiber optic lines.
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