FC optical adapter

1 Insertion loss

 2 Part material

3、Requirement

First, the core functions of the FC Adapter

1. mechanical connection
   Connectors (such as FC jumpers and pigtails) are tightly connected through a threaded structure to ensure stable transmission of optical signals.

2. end face alignment
   The internal ferrule precisely aligns the connector end face, supports PC, UPC, APC and other end face types, and reduces reflection loss.

II. Main features

1. Structural characteristics

• Thread lockingMetal threaded sleeve is used to provide high stability and is suitable for severe environments with vibration or frequent movement.
• Round shellThe size is 2.5mm (the same as the ST adapter), but it is bulky and has lower space utilization than the LC.

2. Performance parameters

• Low insertion losssingle-mode typical value ≤ 0.3dB, multi-mode ≤ 0.5dB.
• High return lossPC type ≥ 45dB, UPC type ≥ 50dB, APC type ≥ 65dB (depending on the end face process).
• durabilityPlugging and unplugging life is usually more than 1000 times, and the metal structure has strong wear resistance.

3. Type diversity

• Simplex/DuplexSimplex adapts to a single connector, duplex integrates two independent channels.
• Single mode/multimode: Adapt to different Fiber Types (single mode: 9/125μm; multimode: 50/125μm or 62.5/125 μm).
• Material selectionThe sleeve is made of ceramic (high precision) or metal (low cost), and the shell is mostly metal.

4. Application flexibility

• Wide range of scenariosApplicable to 1G/10G Ethernet, SDH/SONET transmission, video transmission, etc.
• compatibility: Comply with IEC standards and support mixed insertion of different brands of FC connectors.

5. Environmental adaptability

• high reliabilityThreaded structure anti-loosening, suitable for industrial control, outdoor base station and other scenarios.

• EMI protectionMetal shell shields electromagnetic interference to enhance signal stability.

III. Advantages and Precautions

• advantage
  • Solid connectionThread locking to avoid accidental disconnection, suitable for vibration environment.
  • Low lossCeramic sleeve ensures accurate docking of end faces and high transmission efficiency.
  • durabilityMetal material is resistant to corrosion and has a long lifespan.
• Precautions

  • plugging and unplugging timeThe thread needs to be rotated and fixed, and the operation speed is slow.

  • Space occupancyLarge size, not suitable for high-density wiring.

  • Cleaning requirementsEnd face contamination can lead to increased wear and tear, requiring regular maintenance.

IV. Typical application scenarios

1. telecommunications networkLong-distance transmission link for SDH/DWDM systems.

2. CATV systemOptical signal distribution for cable television networks.

3. Industrial ControlSensor connections for factory automation equipment.

4. Traditional data centerMaintenance of legacy systems for early network deployments.