MPO OM3 Fiber Types

The MPO jumper cable is a cost-effective alternative to labor-heavy field termination procedures. It is designed for high-density fiber patching in data center environments, where efficient space usage and simplified cable management are essential. Moreover, the bend-insensitive fiber construction helps ensure reliable and stable performance, even when the cable is installed in tight or heavily curved pathways.

MPO OM3 Cable Advantage Specifications

Connector A：MPO Male (with guide pins)
Connector B：MPO Male (with guide pins)
Polish Type：PC to PC
Fiber Mode：OM3 50/125μm
Wavelength：850/1300nm
Fiber Count：8 Fibers
Polarity：Type A
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 8-fiber Type A male connector is a compact, high-density fiber optic interface designed for modern data center and parallel optics applications. It follows the Type A polarity standard, which uses a straight-through fiber mapping configuration. This means that each fiber position at one end connects directly to the same fiber position at the opposite end.

For example:

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

As a male connector, it is equipped with two guide pins on the MT ferrule. These pins ensure accurate alignment when mating with a female MPO connector, helping maintain low insertion loss and stable optical performance.

OM3 MPO Cable Key Features:

Connector type: MPO 8-fiber male (with guide pins)
Fiber count: 8 fibers in a single-row MT ferrule
Polarity standard: Type A (straight-through mapping)
Ferrule design: Precision MT ferrule for reliable 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)

OM3 MPO Fiber Advantage

• 40G and 100G Ethernet: Commonly used for 40GBASE-SR4 and 100GBASE-SR4 parallel optics transmission
• Data center backbone cabling: Supports high-density structured cabling systems
• Patch panels and cassettes: Connects MPO trunk cables and optical modules
• Breakout solutions: Compatible with MPO-to-LC harness cables for duplex connectivity

MPO OM3 Cable Advantage

• Straight-through polarity: Simplifies fiber routing and polarity management
• High-density design: 8 fibers in one connector reduce cable bulk and save rack space
• Reliable alignment: Male guide pins ensure stable and accurate mating with female connectors
• Scalable solution: Supports migration from 10G duplex links to 40G/100G parallel optics
• 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. ‌ ‌