DESCRIPTION
The LC/APC Singlemode Fixed Fiber Optic Attenuator (Male to Female) is designed to precisely reduce optical signal strength in singlemode fiber networks. Its angled APC polish guarantees superior return loss performance, making it ideal for high-precision applications in telecom, FTTH, and data center environments. With easy plug-in installation and stable attenuation values, it helps ensure consistent, reliable, and long-term optical transmission.
Feature Details

- High Return Loss: APC ensures return loss ≥60 dB, minimizing reflections in sensitive SM networks.
- Stable Attenuation Values: Provides consistent signal reduction across a wide range of fixed attenuation levels.
- Easy Plug-in Design: Male-to-female LC/APC interface allows quick deployment in patch panels and ODFs.
- Optimized for Singlemode Fiber: Tailored for SM fiber operating at 1310 nm and 1550 nm wavelengths.
- Durable Construction: Ceramic ferrule and precision housing guarantee long-lasting performance under repeated use.
Product Specifications
| Item | Value |
| Fiber Connector | LC/APC |
| Transfer Mode | Single mode |
| Connector Gender | Fixed Male to Female |
| Attenuation Range | 1dB to 30dB (Optional) |
| Operating Wavelength | 1260~1625nm |
| Return Loss | ≥60dB |
| Attenuation Tolerance | ±0.5dB (1–5dB), ±10% (>5dB) |
| Insertion Loss | ≤0.6dB |
| Durability | ≥1000 Mating Cycles |
| Operating Temperature | -40°C ~ +75℃ |
| Storage Temperature | -40°C ~ +85℃ |
| Material | Ceramic ferrule, ABS housing |
| Color | Green (APC Standard) |
Application Details
- FTTH Deployments: Ensures correct power levels in customer connections.
- Telecom Networks: Prevents equipment overload in backbone and access links.
- Data Centers: Manages optical power across high-density LC/APC patching systems.
- Enterprise Systems: Provides stable attenuation for LAN, WAN, and building networks.
- Testing & Measurement: Used for calibration, simulation, and troubleshooting in labs and fieldwork.
Selection Notes
- Typically selected when an LC/APC single-mode link needs a fixed attenuation value to control receive power and minimize reflections, especially in FTTH/telecom patching where APC ecosystems and stable RL performance matter.
- May not be appropriate when the attenuation target (1–30 dB option), wavelength plan (1260–1625 nm usage), or the site’s LC/APC convention isn’t clearly defined, since an incorrect fixed value can under-power the receiver or hide underlying link issues during troubleshooting.
FAQ
Q1: What is the function of an LC/APC fixed attenuator?
A1: It reduces optical signal power to prevent overload and maintain optimal transmission quality.
Q2: What attenuation levels are available?
A2: Standard values range from 1 dB to 30 dB, customizable for specific needs.
Q3: Why use APC instead of UPC?
A3: APC connectors minimize back reflection, making them ideal for singlemode high-precision applications.
Q4: Can this attenuator be reused?
A4: Yes, it supports over 1000 mating cycles without degrading performance.
Q5: What type of fiber does it support?
A5: It is designed for 9/125 µm singlemode fiber networks.
Q6: Is it suitable for multimode fiber?
A6: No, this model is specifically for singlemode applications.
Q7: Where is this attenuator typically installed?
A7: It can be used in patch panels, ODFs, FTTH boxes, and test setups.
Q8: Does it meet international standards?
A8: Yes, it complies with IEC, TIA/EIA, and RoHS standards.





