MPO Cable Types

The MPO jumper cable serves as a cost-efficient substitute for labor-intensive field termination. It is specifically engineered for high-density fiber patching in data centers, where maximizing space and simplifying cable management are essential. Additionally, the use of bend-insensitive fiber helps maintain stable, high-quality connection performance even in tight routing conditions.

MPO Patches Advantage Specifications

Connector A：MPO (Pinless)
Connector B：MPO (Pinless)
Polish Type：APC to APC
Fiber Mode：OS2 9/125μm（G657A1）
Wavelength：1310/1550nm
Fiber Count：8 Fibers
Polarity：Type B
Cable Outside Diameter (OD)：3.0mm
Cable Jacket：Plenum (OFNP)
Min. Bend Radius (Optical Fiber)：10mm
Min. Bend Radius (Fiber Cable)：10/5D (Dynamic/Static)
Connector Durability：500 times
Tensile Strength：80/240N (Long/Short Term)
Insertion Loss：0.35dB Max
Return Loss：≥60dB
Operating Temperature：-10 to 60°C (14 to 140℉)
Storage Temperature：-10 to 70°C (14 to 158℉)

MPO Cable Polarity

The MPO 8-fiber Type B female connector is a high-density fiber optic interface widely used in parallel optics and structured cabling systems. It follows the Type B polarity (reversed configuration), meaning the fiber positions are mirrored from one end to the other.

For example:

• Fiber 1 → Fiber 12
• Fiber 2 → Fiber 11
• Fiber 3 → Fiber 10
• Fiber 4 → Fiber 9
• …
• Fiber 9 → Fiber 4
• Fiber 10 → Fiber 3
• Fiber 11 → Fiber 2
• Fiber 12 → Fiber 1

This reversed mapping ensures that transmit (Tx) fibers on one end connect correctly to receive (Rx) fibers on the opposite end, which is essential for high-speed parallel transmission.

As a female connector, it does not include guide pins and is designed to mate with a male MPO connector (with pins), ensuring precise alignment and stable optical performance.

MPO Cable Polarity Key Features:

Connector type: MPO 8-fiber female (without pins)
Fiber count: 8 fibers in a single-row MT ferrule
Polarity standard: Type B (reversed / flipped mapping)
Ferrule design: High-precision MT ferrule for accurate fiber alignment
Cable jacket options: OFNR, OFNP, or LSZH, with standard color coding (yellow for OS2, aqua/violet for OM3/OM4, lime green for OM5)

MPO Fiber Jumper Advantage

• Correct Tx/Rx alignment: Reversed polarity ensures proper signal transmission
• High-density design: 8 fibers in one connector reduce cable bulk and save space
• Reliable mating: Female connector pairs with male (pinned) connector for precise alignment
• Scalable solution: Supports migration to higher-speed networks such as 40G and 100G

MPO Fiber Patch 400G-400G direct connection mode

When the 400G QSFP-DD DR4 optical modules at both ends of the machine room can be connected through MPO/MTP-8 single-mode fiber jumpers to achieve 400G transmission.

MPO Jumper single-mode connection

MPO Cable SPIN-LEAF connection method

MPO Jumper Cable 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 single-mode 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.

MPO Fiber Patch Cord Test Series

MPO Fiber Patch Cord 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. ‌

MPO Fiber Patch Cord 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 Fiber Patch Cord 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. ‌ ‌