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 B
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 B female connector is a high-density fiber optic connector designed for high-speed parallel optical transmission in data centers and structured cabling systems. It follows the Type B polarity standard, which uses a reversed (flipped) fiber mapping configuration to ensure correct transmit (Tx) and receive (Rx) signal alignment.

In a Type B configuration, the fiber positions are mirrored from one end to the other For example:

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

This reversed polarity is commonly used in parallel optics applications where Tx channels on one device must connect directly to Rx channels on another device.

As a female connector, it is manufactured without guide pins and is designed to mate with a male MPO connector that contains alignment pins for precise fiber alignment 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 B (reversed / flipped 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

• 40G and 100G Ethernet parallel optical transmission systems
• Data center backbone cabling and structured fiber networks
• Direct MPO transceiver connections requiring reversed polarity
• High-density patching environments where space optimization is critical

MPO OM3 Cable Advantage

• Reversed polarity mapping: Ensures proper Tx/Rx signal routing
• Compact high-density design: Combines 12 fibers into one connector
• Reliable alignment: Female connector mates accurately with male pinned connectors
• Future-ready scalability: Supports migration to higher-speed optical infrastructures
• 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. ‌ ‌