DESCRIPTION
The LC OM3 Plug-in Fixed Fiber Optic Attenuator is designed to offer precise and reliable optical power control in high-speed fiber optic networks. Optimized for OM3 multimode fiber, this fixed attenuator provides a straightforward and efficient way to reduce optical signal strength for applications requiring specific power levels. With its compact LC connector, this attenuator is ideal for space-constrained setups, offering both performance and reliability in a simple plug-in form.
Feature Details

- OM3 Fiber Compatibility: Optimized for OM3 multimode fiber, supporting high-speed data transfer and reducing signal loss in high-performance applications.
- Plug-in Type: Quick and easy installation, no tools required for setup, making it ideal for quick deployments and ongoing maintenance.
- Fixed Attenuation: Provides stable and precise attenuation, perfect for environments where optical power needs to be managed at a consistent level.
- Low Insertion Loss: Ensures that the attenuator has minimal impact on signal integrity, ensuring efficient power management.
- LC Connector: The LC connector is well-suited for high-density environments, ensuring reliable, secure connections in various fiber optic systems.
Product Specifications:
| Connector Type | LC/UPC | Attenuation Value | 1~25dB |
|---|---|---|---|
| Fiber Mode | OM3 | Operating Wavelength | SM: 1260-600nm,1310nm/1550nm; MM: 850nm, 1310nm |
| Insertion Loss | ≤50 dB (PC); ≤55 dB (UPC);≤65 dB (APC) | Return Loss | ≥50dB |
| Gender Type | Male to Female | Attenuation Tolerance | (1-10dB)±0.5; (11-25dB)±10% |
| Ferrule Type | Zirconia Ceramic | Compliance | RoHS Compliant |
| Operating Temp. | -20℃ ~ 70℃ | Storage Temp. | -40℃ ~ 85℃ |
Application Details

- Telecommunication Systems: Provides accurate signal attenuation to balance power levels and ensure optimal network performance across fiber optic networks.
- Data Center Networks: Allows fine-tuning of signal strength for efficient power management in high-density fiber optic systems.
- Fiber Optic Test Systems: Perfect for laboratory and field testing where fixed attenuation is required to simulate real-world signal conditions.
- FTTH Networks: Ensures consistent signal strength at the customer premise, improving quality of service and network reliability.
- Long-Haul Fiber Optics: Ideal for applications that require specific optical power levels to ensure the integrity of long-distance communication.
Selection Notes
- Typically selected when an OM3 multimode LC patching environment needs a fixed, known attenuation value (1–25 dB) to prevent receiver overload or to normalize receive power during commissioning/testing in high-density data center links.
- May not be appropriate when the link’s wavelength/fiber-mode plan isn’t clearly defined (OM3 is typically 850/1310 nm multimode) or when the required attenuation value is not matched to the actual link budget, since a wrong fixed value can under-power the receiver or mask underlying link issues during troubleshooting.
FAQ
Q1: What fiber type is this attenuator designed for?
It is specifically designed for OM3 multimode fiber applications.
Q2: What attenuation values are available?
Fixed attenuation values are available from 1 dB to 25 dB.
Q3: Is this attenuator suitable for high-speed data center networks?
Yes, it is optimized for OM3 fiber commonly used in 10G and higher-speed networks.
Q4: How is the attenuator installed?
It features a male-to-female LC plug-in design for quick installation without tools.
Q5: What wavelengths does it support?
It supports standard multimode wavelengths of 850 nm and 1310 nm.
Q6: Does the attenuator introduce significant signal loss?
No, it is designed with low insertion loss to preserve signal integrity.
Q7: Where is this attenuator most commonly used?
It is widely used in data centers, telecom systems, FTTH networks, and fiber optic testing environments.






