Description
The Hybrid Challenge: APC to UPC
The primary reason for this specific cable is compatibility.
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LC/APC (Green): Usually found on the “equipment side,” such as modern SFP modules or GPON equipment where back-reflection must be minimized.
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SC/UPC (Blue): Often the “network side” standard for older patch panels, test equipment, or standard media converters that utilize a flat physical contact.
Technical Performance & Data
Because this cable connects two different polish types, precision in the manufacturing process is vital to maintain low insertion loss.
| Parameter | Specification | Why it Matters |
| Connector A | LC/APC (8° Angled) | Fits high-density APC ports |
| Connector B | SC/UPC (Flat/Ultra) | Fits standard legacy SC ports |
| Fiber Mode | Single Mode OS2 (9/125μm) | Low attenuation over long distances |
| Return Loss (LC) | $\geq 60 \text{ dB}$ | Protects laser source from reflection |
| Return Loss (SC) | $\geq 50 \text{ dB}$ | Standard UPC performance |
| Insertion Loss | $\leq 0.3 \text{ dB}$ | Efficient power throughput |
| Jacket | 2.0mm LSZH (Yellow) | Flexible and fire-safe |
Why Choose This Specific Hybrid Jumper?
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Eliminate Adapters: Using a hybrid patch cord is always superior to using a standalone adapter. Every adapter adds an extra “mate,” which increases total insertion loss. This cable provides a direct, low-loss connection.
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High-Density LC End: The LC connector is 50% smaller than the SC, making it perfect for crowded switches and SFP ports.
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Industrial Standard SC End: The SC end features a robust 2.5mm ferrule, providing a stable connection for standard wall outlets or ODFs.
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LSZH Safety Rating: The Low Smoke Zero Halogen jacket ensures compliance with building safety codes, making it suitable for both enterprise data centers and residential FTTH.
Expert Q&A: Professional Insights
Q1: Can I plug the LC/APC end into a Blue (UPC) port?
A: No. You must match the colors. The Green LC/APC end must go into a Green APC port, and the Blue SC/UPC end must go into a Blue UPC port. If you mix them, you will create a large air gap that causes massive signal loss and potentially damages the fiber.
Q2: Why not just use APC on both ends?
A: Ideally, you would. However, many existing networks were built using UPC (Blue) infrastructure. If your source equipment requires APC to function correctly but your patch panel is UPC, this “hybrid” cable is the only way to connect them safely.
Q3: Is this cable suitable for 10G SFP+ modules?
A: Yes. Single Mode OS2 fiber easily supports 10G, 40G, and 100G speeds. The connector type (LC or SC) does not limit the speed; the fiber core and the transceivers do.
Q4: How should I clean a hybrid cable?
A: Since the ferrules are different sizes (1.25mm for LC and 2.5mm for SC), you will need a dual-size cleaning tool or separate “One-Click” cleaners for each end.
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