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The Hybrid Advantage: Why FC to LC?
Many industrial-grade OLTs or test instruments still utilize the robust, metallic FC interface for its vibration resistance. However, most modern switches and SFP modules use the small-form-factor LC interface to save space. This hybrid cable eliminates the need for bulky adapters, reducing potential failure points and keeping your insertion loss low.
Technical Performance Specifications
This cable is designed for high-performance OS2 single-mode environments, ensuring your data travels further with less interference.
| Metrik | Şartname | Why it Matters |
| Konektör A | FC/APC (Metallic Screw) | Maximum mechanical stability |
| Konektör B | LC/APC (Snap-in Plastic) | High-density port compatibility |
| Elyaf Tipi | Single Mode 9/125μm | Long-distance signal integrity |
| Geri Dönüş Kaybı | $\geq 60 \text{ dB}$ (APC to APC) | Best-in-class reflection control |
| Ekleme Kaybı | $\leq 0,3 \text{ dB}$ | Low power drop across the link |
| Ceket | 2.0mm / 3.0mm LSZH | Fire-rated for indoor safety |
Key Features of the FC/APC-LC/APC-SM-SX
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Premium APC Polish: Both ends feature an 8-degree angled polish (Green). This is critical for high-bit-rate applications where back-reflection can damage sensitive laser diodes.
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Space-Saving LC End: The LC connector’s small footprint allows for double the port density on the switch side compared to older connector types.
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Industrial Strength FC End: The threaded metal nut ensures that the connection remains seated even in high-vibration server rooms or industrial cabinets.
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Reliable LSZH Jacket: The Low Smoke Zero Halogen jacket is the professional standard for data centers, ensuring safety in case of fire.
Expert Q&A: Common Field Questions
Q1: Can I use this cable to connect a standard LC SFP module to an FC patch panel?
A: Only if your SFP module and patch panel are both rated for APC (Green). Most standard LC SFP modules use UPC (Blue). If you plug an LC/APC connector into a UPC SFP, the angled tip will not align, causing high loss. Always verify the color of the port.
Q2: Does the “Simplex” design support 10Gbps or 100Gbps?
A: Yes. The fiber core itself (Single Mode OS2) has virtually unlimited bandwidth. The “Simplex” (SX) designation simply means it uses one fiber. If your network uses BiDi (Bi-directional) transceivers, this single fiber is all you need for high-speed data.
Q3: How durable are these connectors?
A: The FC side is exceptionally durable due to its metal housing. The LC side is rated for at least 1,000 matings. We recommend using a fiber inspection microscope to clean the tips after every 10–20 insertions to maintain the $<0.3\text{dB}$ loss rating.
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