The MPO Multimode Trunk Cable is a high-density fiber assembly designed for structured cabling in data centers, enterprise server rooms, and high-speed network environments. It uses pre-terminated MPO/MTP® connectors to consolidate multiple multimode fibers into a compact trunk connection, reducing field termination work and simplifying high-density deployment.

Available in OM3, OM4, and OM5 multimode fiber, the cable can be configured for different fiber counts, connector genders, polarity methods, cable lengths, and jacket requirements.

Technical Specifications

Item	Specification
Fiber Type	Multimode OM3 / OM4 / OM5
Fiber Core	50/125 μm
Fiber Count	8 / 12 / 24 fibers; multi-MPO configurations available
Connector	MPO / MTP®
Connector Gender	Male / Female
Polarity	Type A / Type B / Type C
Multimode Polish	PC
Insertion Loss	Standard ≤0.35 dB; low-loss versions ≤0.20 dB
Cable Jacket	PVC / LSZH / OFNP, subject to configuration
Cable Type	Round or bundled trunk construction

Polarity & Gender Options

Correct polarity and connector gender are essential for maintaining transmit-to-receive continuity in parallel-optics links.

Type A

Straight-through fiber mapping.

Type B

Reversed fiber mapping, commonly used in duplex parallel-optics architectures.

Type C

Pair-reversed mapping for specific structured-cabling designs.

Male MPO

Pinned connector for alignment with a female connector.

Female MPO

Unpinned connector for use with a male connector.

The required polarity should be specified together with the mating equipment, cassette, or patch-panel design rather than selected independently.

Cable Construction

The trunk assembly uses factory-terminated multimode fiber with protective cable construction suitable for organized rack and pathway installation. Aramid yarn can be used as the strength member, while the outer jacket can be selected according to installation requirements.

Common jacket options include PVC for general indoor use, LSZH where low-smoke and halogen-free construction is required, and OFNP for plenum-rated installations. Cable diameter varies with fiber count and trunk configuration, so the final outside diameter should be confirmed before specifying pathway capacity or cable-management hardware.

Data Center Applications

The MPO Multimode Trunk Cable is suitable for:

Rack-to-rack backbone connections in high-density data centers.
MPO patch-panel and cassette interconnections for structured cabling.
Switch-to-server and switch-to-switch links using parallel multimode optics.
Enterprise equipment rooms where pre-terminated assemblies reduce field installation work.
High-density network upgrades requiring higher fiber capacity within limited rack space.

Testing & Quality Assurance

Each cable assembly can be inspected and tested before shipment to verify manufacturing consistency and optical performance.
Typical quality-control procedures include:

100% insertion-loss testing for completed assemblies.
End-face inspection and cleaning of MPO connectors.
Connector polarity and fiber mapping verification.

Connector gender and identification check.
Visual inspection of cable jacket, boots, and breakout areas.
Individual test reports supplied according to project requirements.

Test records can be matched to cable identification or order documentation for incoming inspection and project traceability.

Customization & OEM

For OEM, system-integrator, and project orders, the trunk cable can be configured according to the required network architecture, including:

Fiber type: OM3 / OM4 / OM5

Fiber count and MPO quantity

MPO/MTP® connector gender

Type A / B / C polarity

Standard or low-loss optical performance

Cable length and breakout length

PVC / LSZH / OFNP jacket

Cable identification, labeling, and color requirements

Customer-specific packaging and private labeling

Packaging & Delivery

Finished MPO trunk cables are individually protected to prevent connector contamination, bending, and cable damage during handling and transportation. Connector dust caps, protective wrapping, and cartons or other export-suitable packaging can be specified according to shipment requirements.

Standard configurations can be supplied according to production availability. Custom OEM assemblies are scheduled according to configuration complexity, quantity, testing requirements, and material availability. Each shipment can be supplied with product identification and applicable test documentation for receiving inspection.

FAQ

Q: How do I confirm that the trunk cable will match my existing MPO system?

A: Confirm the connector interface, key orientation, fiber mapping, pin configuration, and mating component specifications on both ends. For an existing installation, providing the current MPO module, adapter, or cable part number helps prevent incompatibility during replacement or expansion.

Q: Can MPO trunk cables be supplied in different lengths for the same project?

A: Yes. Different cable lengths can be produced within the same project specification. Buyers should provide the required finished length and, where applicable, the allowable tolerance so that rack routing and installation clearances can be planned accurately.

Q: Can you provide a sample before a bulk order?

A: Yes. Samples can be produced for configuration verification before mass production. The sample should use the same connector arrangement and key technical requirements intended for the production order so that compatibility and installation can be checked under actual project conditions.

Q: Are cable drawings or dimensional documents available for engineering approval?

A: Yes. Dimensional drawings and configuration information can be provided for project review. For complex trunk assemblies, buyers can confirm overall length, connector arrangement, breakout dimensions, and identification requirements before production.

Q: How should MPO trunk cables be handled during installation?

A: Avoid pulling the cable by the connectors, exceeding the specified bend limits, or placing excessive load on breakout sections. Keep connector end faces capped until connection and route the trunk through suitable cable-management systems without crushing or sharply bending the assembly.

Q: Can the same MPO trunk cable be used for different transmission speeds?

A: Potentially, but compatibility depends on the transceiver type, optical link budget, transmission distance, and network architecture. The cable should therefore be specified against the actual optical equipment and link requirements rather than selected only by nominal data rate.

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