5. Optical Performance
5.1 Insertion Loss (IL)
• MPO (Single‑mode APC 8°):
￮ Standard: ≤0.75 dB (max), ≤0.35 dB (typical)
￮ Super low loss: ≤0.35 dB (max), ≤0.20 dB (typical)
• MPO (Multimode PC):
￮ Standard: ≤0.60 dB (max), ≤0.35 dB (typical)
￮ Super low loss: ≤0.35 dB (max), ≤0.20 dB (typical)
• LC/SC/FC/ST (Single‑mode & Multimode): ≤0.30 dB (max)
5.2 Return Loss (RL)
• MPO (SM APC): ≥60 dB
• MPO (MM PC): ≥25 dB
• LC/SC/FC/ST (SM APC): ≥60 dB; (SM UPC): ≥50 dB
• LC/SC/FC/ST (MM PC): ≥35 dB
5.3 Mechanical & Environmental
• Durability: ≤0.3 dB typical change after 200 matings
• Interchangeability: ≤0.2 dB
• Tensile strength: >70 N
• Operating temperature: ‑40 °C to +85 °C
6. Connector Details
6.1 MPO Connector
• Single‑mode APC:
￮ Standard loss: green housing + black boot
￮ Super low loss: yellow housing + black boot
• Multimode PC:
￮ OM1/OM2: beige housing + black boot
￮ OM3/OM4: aqua or heather violet housing + black boot
6.2 LC Connector
• Compliant with IEC 61754-20
• Physical geometry and end‑face quality meet IEC 61300‑3‑35
7. End‑Face Geometry (3D Interference)
7.1 MPO End‑Face
• ROC‑X (ABS): ≥2000 mm
• ROC‑Y (ABS): ≥50 mm
• APC angle: 7.85° to 8.15°
• PC angle: ‑0.2° to ‑0.2°
• Fiber height: 1000 nm to 3500 nm
• Max DH (all fibers): ‑300 nm to +300 nm
• DH adjacent: ‑300 nm to +300 nm
• DH average: ‑300 nm to +300 nm
• MM core dip: ‑200 nm to +300 nm
7.2 LC/SC/FC/ST End‑Face
• PC radius:
￮ SC/FC/ST: 10–25 mm
￮ LC/MU: 7–25 mm
• APC radius:
￮ SC/FC/ST: 5–12 mm
￮ LC/MU: 5–15 mm
• Apex offset: ≤50 μm
• Fiber spherical height: ±100 nm
• APC angle: 8° ±0.5°
7.3 End‑Face Quality (IEC 61300-3-35)
No scratches or defects allowed in core, cladding, adhesive, contact, or ferrule zones.
8. Applications
• Data communication networks
• Optical access networks
• Storage area networking (SAN) / Fiber Channel
• High‑density optical architectures
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