SC APC Fixed Fiber Optic Attenuator, Single Mode Optical Attenuator 0dB to 30dB

Product Overview

The Luleey SC APC Fixed Fiber Optic Attenuator is a passive optical component designed to reduce optical signal power by a fixed attenuation value in single mode fiber networks. It is commonly used when the received optical power is too strong for the optical receiver, or when engineers need to balance link budgets during installation, testing, and maintenance.

This SC APC Attenuator is suitable for FTTH, FTTX, CATV, telecom rooms, ODF systems, PON networks, fiber testing, optical transceivers, media converters, switches, routers, servers, storage devices, and optical network maintenance.

The SC/APC connector uses an angled polish structure, making it suitable for low-reflection single mode optical systems. Compared with UPC connectors, APC connectors are more commonly used in FTTH, CATV, PON, and optical distribution environments where return loss performance is important.

Luleey provides multiple fixed attenuation values from 0dB to 30dB, helping installers and network engineers select the proper signal reduction value for different optical link requirements.

Features

• SC APC Fixed Fiber Optic Attenuator for single mode fiber networks
• Fixed attenuation values for stable optical power reduction
• SC/APC connector for low-reflection optical links
• Available attenuation range from 0dB to 30dB fixed values
• Helps protect optical receivers from excessive input power
• Helps balance optical link budget in FTTH, CATV, telecom, and PON networks
• Suitable for 1310nm and 1550nm single mode applications
• High return loss design for stable optical performance
• Low insertion loss and good repeatability
• Good wear resistance for repeated connection
• Plug-and-play passive optical component
• Suitable for fiber switches, routers, media converters, optical transceivers, servers, fiber NICs, storage devices, and test equipment
• Useful for optical network deployment, troubleshooting, maintenance, and lab testing

Applications

• FTTH Fiber Networks
• FTTX Access Networks
• CATV Optical Systems
• PON Optical Networks
• Telecom Room Fiber Links
• ODF Optical Distribution
• Optical Power Adjustment
• Fiber Link Budget Balancing
• Optical Receiver Protection
• Fiber Testing and Maintenance
• Optical Transceiver Testing
• Media Converter Deployment
• Switch and Router Fiber Links
• Server and Storage Fiber Connections
• Laboratory Optical Testing

Specifications

Why Use an SC APC Fiber Optic Attenuator?

A fiber optic attenuator is used when the optical signal power is too high for the receiving device. In fiber networks, too much optical power may overload the receiver and cause unstable links, device alarms, packet loss, or poor performance.

A fixed attenuator helps:

• Reduce excessive optical power
• Protect optical receivers
• Balance optical link budgets
• Prevent receiver overload
• Improve link stability
• Support fiber testing and troubleshooting
• Simulate fiber loss in lab environments
• Match optical power requirements between different devices

For FTTH, CATV, telecom, PON, and optical testing applications, the Luleey SC APC Fixed Fiber Optic Attenuator is a practical passive component for optical power control.

SC APC vs SC UPC Attenuator

SC APC and SC UPC attenuators are not the same. They use different connector end-face structures and should not be mixed directly.

Choose SC/APC when the connected fiber line, patch cable, adapter, ONU, OLT, splitter, or optical equipment also uses SC/APC.

Choose SC/UPC only when the connected equipment and patch cable are SC/UPC.

Do not directly connect APC and UPC end-faces together, because this may cause poor contact, higher insertion loss, higher reflection, and unstable optical performance.

How to Choose the Right Attenuation Value

The correct attenuation value depends on the optical receiver input range and the actual received optical power. Before choosing the dB value, measure the current optical power with an optical power meter.

The selected attenuator should reduce the received optical power into a safe and stable operating range.