MPO OM4 Cable Types

The MPO jumper cable provides a reliable and affordable alternative to complex field termination installation methods. It is ideal for high-density fiber patching in data center environments, helping reduce cabling congestion while making better use of available space. In addition, the bend-insensitive fiber design ensures consistent signal performance and stable connectivity, even in challenging routing conditions with tight bends.

MPO Om4 Advantage Specifications

Connector A：MPO Male (with guide pins)
Connector B：MPO Male (with guide pins)
Polish Type：PC to PC
Fiber Mode：OM4 50/125μm
Wavelength：850/1300nm
Fiber Count：8 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℉)

MPO OM4 Patch Cord Polarity

The MPO 8-fiber Type C male connector is a high-density fiber optic connector designed for structured cabling and parallel 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 swapped in pairs For example:

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

This pairwise crossover helps maintain correct duplex communication without requiring additional polarity conversion.

As a male connector, it is equipped with two guide pins on the MT ferrule. These pins ensure accurate alignment when connected to a female MPO connector, delivering low insertion loss and reliable optical performance.

OM4 MPO Fiber Key Features:

Connector type: MPO 8-fiber male (with guide pins)
Fiber count: 8 fibers in a single-row MT ferrule
Polarity type: Type C (pairwise crossover mapping)
Ferrule design: Precision MT ferrule for accurate fiber alignment
Cable jacket options: OFNR, OFNP, and LSZH available for different installation environments
Fiber compatibility: Supports OS2 single-mode and OM3/OM4/OM5 multimode fibers

Cabo MPO OM4 Applications

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

MPO OM4 Fiber Advantage

• Pairwise polarity design: Ensures correct Tx/Rx signal routing
• Compact high-density interface: Reduces cable congestion and saves rack space
• Reliable alignment: Male guide pins provide secure and accurate mating
• Flexible deployment: Suitable for duplex and parallel optical applications
• 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

OM4 MPO Cable SPIN-LEAF connection method

OM4 MPO 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 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.

OM4 MPO Test Series

OM4 MPO MTP 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. ‌

Fibra MPO OM4 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.

OM4 MPOw 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. ‌ ‌