MPO OM3 Fiber Types

The MPO jumper cable provides an efficient and budget-friendly alternative to labor-intensive field termination procedures. It is built for high-density fiber cabling systems in data centers, allowing improved space efficiency and easier cable management. In addition, the bend-insensitive fiber technology supports reliable optical performance and stable connectivity, even when the cable is routed through tight or confined areas.

MPO OM3 Cable Advantage Specifications

Connector A：MPO Female (without guide pins)
Connector B：MPO Female (without guide pins)
Polish Type：PC to PC
Fiber Mode：OM3 50/125μm
Wavelength：850/1300nm
Fiber Count：12 Fibers
Polarity：Type C
Cable Outside Diameter (OD)：3.0mm
Cable Jacket：Plenum (OFNP)
Min. Bend Radius (Optical Fiber)：7.5mm
Min. Bend Radius (Fiber Cable)：20/10D (Dynamic/Static)
Connector Durability：500 times
Tensile Strength：90/180N (Long/Short Term)
Insertion Loss：0.35dB Max
Return Loss：≥25dB
Operating Temperature：-10 to 60°C (14 to 140℉)
Storage Temperature：-10 to 70°C (14 to 158℉)

OM3 MPO Patch Cord Polarity

The MPO 12-fiber Type C female connector is a high-density fiber optic connector designed for structured cabling and duplex optical transmission systems. It follows the Type C polarity standard, which uses a pairwise crossover mapping to ensure proper transmit (Tx) and receive (Rx) signal alignment between connected devices.

In a Type C configuration, adjacent fibers are crossed in pairs For example:

• Fiber 1 → Fiber 2
• Fiber 2 → Fiber 1
• ……..
• Fiber 11 → Fiber 12
• Fiber 12 → Fiber 11

This pairwise crossover design ensures that transmit and receive channels are correctly connected without additional polarity conversion.

As a female connector, it is manufactured without guide pins and is designed to mate with a male MPO connector that contains alignment pins. This structure guarantees accurate fiber alignment, low insertion loss, and stable optical performance.

OM3 MPO Cable Key Features:

Connector type: MPO 12-fiber female (without guide pins)
Fiber count: 12 fibers in a single-row MT ferrule
Polarity standard: Type C (pairwise crossover mapping)
Ferrule design: Precision MT ferrule for accurate fiber core alignment
Cable jacket options: OFNR, OFNP, and LSZH for different installation environments
Fiber compatibility: Supports OS2 single-mode and OM3/OM4/OM5 multimode fibers

OM3 MPO Fiber Advantage

• Structured cabling systems in enterprise and hyperscale data centers
• Duplex optical transmission requiring pairwise Tx/Rx alignment
• 40G and 100G Ethernet parallel optical applications
• MPO trunk, cassette, and patch panel systems for high-density fiber management

MPO OM3 Cable Advantage

• Pairwise crossover polarity: Ensures correct Tx/Rx signal routing
• High-density connectivity: Integrates 12 fibers into one compact connector
• Reliable mating: Female connector aligns accurately with male pinned connectors
• Flexible deployment: Suitable for duplex and parallel optical environments
• 100% use low-loss connectors
• Each MPO patch cord is fully tested for insertion loss & return loss, 100% tested, and batch goods are not sloppy
• Each line guarantees 3D geometric dimensions and end face integrity, imported equipment measures 3D, and dust-free workshops ensure cleanliness
• Affordable price, quality assurance, source manufacturers take both quality and price into consideration
• All materials have passed REACH/ROHS environmental protection requirements and are of export quality
• Adequate inventory, complete materials, and efficient production
• Customization of special specification MPO patch cords, fast delivery

MPO Patch Cord OM3 Short distance direct connection in rack or cabinet

MPO OM3 Patch Duplex fiber interconnection

MPO OM3 Fiber 25G-100G direct connection

You can connect one 100G QSFP28 SR4 optical module to four 25G SFP28 SR optical modules through an 8-core MPO/MTP to four duplex LC multimode breakout cable. Similarly, you can connect one 100G QSFP28 PSM4 optical module to four 25G SFP28 LR optical modules through an 8-core MPO/MTP to four duplex LC multimode breakout cable.

MPO OM3 Cable 100G-CFR&SR interconnection method

The solution is to connect from one 100G CFP optical module to another CFP using a 24-core MPO/MTP to 3×8-core MPO/MTP breakout cable.

OM3 MPO Cable 400G multi-mode connection

OM3 MPO Fiber 400G-SR8 interconnection method

The 400G QSFP-DD SR8 optical module uses a standard MPO-16 connector to achieve 400G transmission. The transmission distance through multimode optical fiber can reach up to 70m (OM3) or 100m (OM4).

MPO OM3 Fiber Application

High-speed interconnection in data centers

It is used for direct connection of 40G/100G optical modules, supports 400G high-speed transmission, and can improve wiring density and transmission efficiency. For example, 400G QSFP-DD DR4 optical modules can be directly connected through MPO/MTP-8 multimode fiber jumpers. ‌

High-density wiring scenarios

In the backbone wiring of data centers, MTP/MPO trunk fiber jumpers are used in conjunction with adapter modules to achieve interconnection and cross-connection between devices, saving 45% of wiring space. Branch jumpers are used to connect devices with different rates (such as 10G and 40/100G devices). ‌

100G/400G transmission expansion

Supports branch connection of 100G QSFP28 optical modules to 4 25G SFP28 optical modules, or interconnection of 100G CFP optical modules to another CFP. ‌

Fiber-to-Building Applications

It is used for fiber-to-the-building (FTTB) wiring to meet the needs of high-density fiber access.

OM3 MPO Test Series

OM3 MPO Cable Polarity Test Process

‌End face cleaning: Use special equipment to remove end face contaminants to avoid affecting the test accuracy. ‌
Morphology detection: Analyze the end face microstructure through 3D imaging technology to detect surface roughness, scratches and other defects. ‌
Insertion loss test: Measure the contact loss between the fiber end face and the connector ferrule to evaluate the signal transmission quality. ‌
Polarity verification: Confirm the correspondence between the number of fiber cores and the connector guide hole to prevent communication failure caused by wrong connection. ‌

OM3 MPO Fiber Test Key Indicators

Cleaning efficiency: It must reach more than 98% to ensure that there are no residual stains on the end face. ‌
‌Detection accuracy: The resolution of 3D morphology detection must be less than 1.5μ, and the insertion loss error must be controlled within 0.3dB. ‌
Test time: It takes about 10 seconds to detect a single fiber core of a 12-core MPO jumper, and the overall test takes about 2 minutes.

MPO Patch Cord OM3 Test Common Problems

Pollution sensitivity: Tiny particles on the end face will cause increased loss, and non-contact cleaning methods are required to protect the end face. ‌ ‌