MPO 12F APC to 4xLC UPC Duplex Harness Cables, 8 Fibers, Singlemode (OS2, G.657.A1), OFNR, Crossover
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Bend insensitive fibre paired with high-performance MPO connectors delivers reliable connectivity for dense data centre and carrier-grade applications.
Overview
The NS MPO 12F APC to 4xLC UPC Duplex harness cable is a high-density single mode breakout solution designed for migration between parallel and duplex optics in modern data centers. With one 12-fiber MPO APC (Female) trunk breaking out to four LC UPC duplex connectors, this harness provides an 8-fiber active path for switch ports, server NICs, and patch panels that still rely on LC interfaces, while supporting OS2 G.657.A1 bend-insensitive performance.
Factory-terminated and 100% tested, the MPO–LC harness delivers verified low insertion loss and high return loss for improved network integrity. It is ideal for transitioning from duplex-based 10G/25G Ethernet links to parallel 40G/100G Ethernet infrastructures, enabling seamless upgrades without a complete recabling of your physical layer. With a riser-rated OFNR jacket and compact breakout legs, it is well-suited for high-density cabling applications in data centers, equipment rooms, and telecommunication rooms where space, airflow, and cable management are critical.
Need help confirming crossover polarity, LC mapping, or compatibility with your patch panels and transceivers? Contact us now and our team will help validate your design before deployment.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | Network-Switch (NS) |
| Product Type | MPO 12F APC to 4xLC UPC Duplex Singlemode Harness Cable |
| Connector A | MPO-12 APC Female (Pinless), Low Loss |
| Connector B | 4 × LC UPC Duplex connectors |
| Polish Type | APC (MPO) to UPC (LC) |
| Glass Fiber | G.657.A1 bend-insensitive single mode |
| Fiber Mode | OS2 9/125 μm |
| Wavelength | 1310 nm / 1550 nm |
| Fiber Count | 8 Active Fibers (4×LC duplex) |
| Polarity | Crossover |
| Cable Outside Diameter (OD) | 3.0 mm (trunk, typical) |
| Breakout Outside Diameter (OD) | 2.0 mm (LC legs, typical) |
| Breakout Length | 0.5 m (typical leg length) |
| Cable Jacket | Riser-rated, OFNR |
| Minimum Bend Radius | 10 mm |
| MPO Connector Insertion Loss | ≤ 0.35 dB (Typ. 0.15 dB) |
| MPO Connector Return Loss | ≥ 60 dB |
| LC Connector Insertion Loss | ≤ 0.20 dB |
| LC Connector Return Loss | ≥ 50 dB |
| Attenuation @ 1310 nm | ≤ 0.32 dB/km |
| Attenuation @ 1550 nm | ≤ 0.18 dB/km |
| Long-term Tensile Load | 80 N |
| Short-term Tensile Load | 240 N |
| Operating Temperature | -10 to 60 °C (14 to 140 °F) |
| Storage Temperature | -10 to 70 °C (14 to 158 °F) |
| Standards Compliance | MPO interface standards, OS2, RoHS compliant |
| Applications | Duplex-to-parallel migration, 10G/25G to 40G/100G, high-density LC breakout in racks |
Why Choose NS MPO 12F to 4xLC UPC Duplex Harness Cables?
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Seamless duplex–parallel migration – Designed to bridge MPO-based backbones and LC-based switch or server ports.
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High-density breakout design – One MPO trunk to four LC duplex legs reduces cable bulk in front-of-rack and top-of-rack layouts.
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Low-loss, high-reliability performance – Factory-terminated and tested MPO and LC connectors help maintain tight optical budgets.
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Bend-insensitive OS2 G.657.A1 fiber – Supports tight routing and compact cable management in crowded data center racks.
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Crossover polarity for clean mapping – Pre-engineered polarity simplifies planning and reduces risk of mispatching.
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Riser-rated OFNR construction – Suitable for in-cabinet routing and structured cabling in enterprise and cloud facilities.
Length Options
Standard stocked lengths:
Available in common harness lengths suitable for top-of-rack, middle-of-row, and end-of-row deployments, with optimized trunk and breakout leg lengths for typical switch and patch panel layouts.
Custom lengths:
Custom trunk lengths, breakout leg lengths, labeling, and connector configurations are available on request to match your exact rack layout and cabling design.
More Details
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- Return Process: To initiate a return, please contact our customer support team at help@network-switch.com. You will be provided with instructions on how to return the product and obtain a return authorization number if necessary.
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- Refund Process: Once we receive your returned item and inspect it, we will process your refund to the original method of payment within 7 business days.
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Email: help@network-switch.com
Before returning any products, please contact us to explain the issues you are experiencing. In many cases, we can resolve the problem through technical support, and you won't need to return the product.
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Please do not return any items without first contacting us. We will guide you through the process, including the appropriate shipping methods.