MTP/MPO Connector Overview
In fiber optic systems, LC, SC and MPO optical fiber connectors are often used.
- SC (square connector) connectors have a push-pull coupling end face with a spring-loaded ceramic ferrule, and is ideal in data center applications.
- LC (Lucent connector) connectors – also push-pull connectors – came along after SC connectors, and feature a smaller ferrule (for this reason, it’s known as a “small form-factor connector”). Its smaller size makes it ideal for dense data center racks and panels.
- MPO connectors are used for ribbon cables with anywhere from 8 to 32 fibers now.
LC Duplex is an optical fiber connector with a pair of MMF or singlemode fiber (SMF) that transmits the data in two opposite directions, one in each fiber. It can be used for single-lane transceivers, such as 10G or 25G SFP, or used for wavelength multiplexing, such as CWDM4, SWDM4 or BiDi, in the same fiber pair.
MPO arrayed connectors support parallel fiber connectivity for MMF and SMF types. A typical use case for MMF MPO-12 (eight fibers) is the 40GBASE-SR4 and 100GBASE-SR4 transceiver, with four fibers as Tx (transmit) and the other four fibers as Rx (receive).
High-density fiber count MPO-16, MPO-24 and MPO-32 connectors have also been developed to support permanent trunk cabling and transceivers like 100GBASE-SR10 (20 fibers) and 400GBASE-SR16 (32 fibers).
MTP/MPO cables are well-received for high-density cabling in data centers, as they are capable of accommodating multi fibers within a single interface, which largely increases network capacity, saves much space and offers ease of cable management. With a variety of MTP/MPO cables available in terms of cable function, polarity, fiber count, fiber mode and jacket rating, it would be better to consider specific needs when choosing suitable MTP/MPO cable solutions.
HeyOptics use MPO/MTP connectors which is from Senko/Nissin/Sumitomo and USConnec and our MTP/MPO fiber cables use connector housing color for better identification, such as Green (for SMF standard loss) Yellow (for SMF Super Low loss), Beige (for MMF OM1/OM2) and Aqua (for OM3 Fiber) and Magenta (for OM4 Fiber).
MTP/MPO Fiber Adapter and Polarity
MTP/MPO Fiber Cables Polarity
There are three polarity standards defined by TIA 568 (Telecommunications Industry Association) for 12 Fiber MPO/MTP cables, these are Type A (known as a Straight Through cable), Type B (known as a Cross cable), and Type C (known as a Cross Pair cable)
24 Fibers Polarity Type A Straight Thrugh
24 Fibers Polarity Type B Cross (100GBASE-SR10 CFP/CXP transceivers)
MPO/MTP-16 & MPO/MTP-32 Polarity
16 Fibers MPO/MTP-16 Polarity Type-A Straight Through
32 Fibers MPO/MTP-32 Polarity Type-A Straight Through
MPO/MTP End-Face 3D Interference Index
|MPO/MTP End-Face 3D Interference Index|
|Radius of curvature (mm)||ROC-X(ABS)||2000||\|
|Fiber height (nm)||1000nm||3500nm|
12F MPO/MTP Optical Specifications
|Optical Cable Specifications (12F )|
|Specification||Single mode (APC 8-degree polished)||Multimode (PC Flat polish)|
|Insertion loss (MPO)(IEC 61300-3-34)||Standard loss：≤0.75dB(max), ≤0.50dB(Typical)||Standard loss：≤0.6dB(max), ≤0.50(Typical)|
|Super Low loss：≤0.35dB(max), ≤0.20dB(Typical)||Super Low loss：≤0.35dB(max) , ≤0.20dB(Typical)|
|Return loss(MPO)||≥60dB（8degree polishing）||≥25dB|
|Durability||<0.3dBtypical change, 200 matings|
|Operating Temperature||-40 to + 85°C|
24F to 144F Micro-fiber Optical Specifications
|Optical Cable Specifications (24-144F Micro-fiber)|
|Fiber Number||Flat 24 Fibers||36 Fibers & 48 Fibers & 72 Fibers||72 Fibers||96 Fibers||144 Fibers|
|Subunit diameter (mm)||2.9±0.1||2.9±0.1||2.9±0.1||2.9±0.1||2.9±0.1|
|Temperature rating Operation&Storage||-20°C ~70°C|