Custom OS2 MTP®-16 APC to 8x LC UPC Harness Cable, 16-Fiber (Crossover)
4. Product Features
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Elite Precision Connectivity: Utilizes premium low-loss ferrules to provide industry-leading optical performance, essential for tight power budget environments.
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Bespoke Breakout Design: We offer custom “staggered” breakout lengths to match the specific port layout of your equipment, ensuring a clean and professional installation.
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Singlemode Long-Reach Support: Optimized for 1310nm, 1550nm, and 1625nm wavelengths, supporting high-bandwidth transmission over extended distances.
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Ruggedized Construction: Features high-quality strain relief and bend-insensitive fiber (BIF) to maintain signal stability even in tight-radius routing.
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Certified Quality Control: 100% factory-tested for IL/RL and ferrule end-face geometry, complying with TIA-568-C.3 and IEC-61754 standards.
Product Overview
The Wolontek Custom OS2 MTP-16 APC to 8x LC UPC Harness is engineered to meet the extreme bandwidth and distance demands of next-generation 800G optical networks. As data centers scale beyond 400G, standard 8-fiber and 12-fiber architectures are rapidly being replaced by Base-16 solutions. This harness serves as the critical link between high-speed 800G OSFP/QSFP-DD transceivers and discrete 100G infrastructure.
Constructed with premium 9/125μm OS2 single-mode fiber, this harness is capable of supporting high-speed data transmission over long distances. The MTP-16 connector utilizes an APC (Angled) polish with an offset key design to drastically reduce return loss—a mandatory requirement for single-mode PAM4 signaling. Paired with precise Crossover polarity, this custom assembly eliminates the need for complex field conversions, offering true plug-and-play reliability.
Key Features
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Elite US Conec MTP® Hardware: Ensures precision fiber alignment and a strict maximum insertion loss of ≤0.35dB for demanding optical budgets.
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Custom Breakout Engineering: Specify your exact total length and custom staggered LC breakout legs to eliminate cable slack and perfectly dress your Top-of-Rack (ToR) switches.
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Bend-Insensitive OS2 Fiber: Utilizes advanced G.657.A1 bend-insensitive single-mode fiber to prevent signal degradation in tightly routed server cabinets.
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Rigorous Factory Testing: Every 16-fiber harness is 100% factory terminated, subjected to 3D interferometry, and visually inspected to guarantee carrier-grade performance.
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Standard Yellow Jacket: Encased in the industry-standard yellow jacket for immediate visual identification of single-mode fiber runs.
Technical Specifications
| Specification | Details |
| Connector A | 1x MTP®-16 (Female, No Pins) - APC Polish (Offset Key) |
| Connector B | 8x LC Duplex - UPC Polish |
| Fiber Category | OS2 Single-mode 9/125μm |
| Fiber Count | 16-Fiber (Base-16) |
| Polarity | Crossover (For 800G Breakout) |
| Insertion Loss (MTP) | ≤ 0.35dB (Low Loss) |
| Return Loss (MTP APC) | ≥ 60dB |
| Insertion Loss (LC UPC) | ≤ 0.20dB |
| Return Loss (LC UPC) | ≥ 50dB |
| Wavelength | 1310nm / 1550nm |
Application Scenarios
This custom Base-16 single-mode harness is indispensable for forward-looking architectures:
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800G to 8x 100G Breakout: Splitting an 800GBASE-DR8 transceiver (OSFP) into eight individual 100GBASE-DR links over single-mode fiber.
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400G to 8x 50G Long-Reach Breakout: Distributing 400G bandwidth to multiple 50G servers across expansive data center floors.
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Hyperscale Cloud & AI Clusters: Providing the massive, low-latency connectivity required for distributed machine learning and high-performance computing (HPC).

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