4. Optical Performance
4.1 Connector Optical Parameters (MTP/MPO)
Parameter | Single‑mode (APC 8° polish) | Multimode (PC flat polish) |
Insertion Loss (Standard) | ≤0.75 dB (max), ≤0.50 dB (typ) | ≤0.60 dB (max), ≤0.50 dB (typ) |
Insertion Loss (Super Low Loss) | ≤0.35 dB (max), ≤0.20 dB (typ) | ≤0.35 dB (max), ≤0.20 dB (typ) |
Return Loss | ≥60 dB | ≥25 dB |
Durability (200 matings) | ΔIL ≤0.3 dB (typ) | ΔIL ≤0.3 dB (typ) |
Interchangeability | ≤0.2 dB | ≤0.2 dB |
Tensile Strength (connector) | >70 N | >70 N |
Operating Temperature | −40 °C to +85 °C | −40 °C to +85 °C |
4.2 MT Ferrule End‑Face 3D Geometry (IEC 61300‑3‑30)
Parameter | Min | Max |
ROC‑X (ABS) | 2000 mm | — |
ROC‑Y (ABS) | 50 mm | — |
Angle‑X | −0.2° | −0.2° |
Angle‑Y (APC) | 7.85° | 8.15° |
Angle‑Y (PC) | −0.2° | −0.2° |
Fiber Height | 1000 nm | 3500 nm |
Max DH (All Fiber) | −300 nm | 300 nm |
DH Adjacent | −300 nm | 300 nm |
DH Average | −300 nm | 300 nm |
Core Dip (Multimode) | −200 nm | 300 nm |
5. Cable Mechanical & Physical Specifications
5.1 Structure
• Fiber: 12×250 μm OM3 (50/125 μm)
• Armoring: SUS stainless‑steel spiral tube
• Strength member: Aramid yarn
• Subunit jacket: PVC / LSZH
• Outer jacket: LSZH / PVC / PE / TPU / OFNP
5.2 Physical Parameters
Item | Value | Unit |
Fiber Count | 12 | — |
Fiber Type | OM3 (50/125 μm) | — |
Cable Diameter | 3.0±0.2 | mm |
Armor Tube Diameter | 1.8±0.05 | mm |
Cable Weight | 15±5% | kg/km |
Max Tensile Load (Short term) | 600 | N |
Max Tensile Load (Long term) | 300 | N |
Crush Resistance (Short term) | 3000 | N/100 mm |
Crush Resistance (Long term) | 1500 | N/100 mm |
6. Polarity Types
6.1 Type A (Straight‑through)
• Key Up to Key Down
• Fiber 1 ↔ Fiber 1 (no reversal)
• Application: mixed A‑B and A‑A patch cords
6.2 Type B (Reversed)
• Key Up to Key Up
• Fiber 1 ↔ Fiber 12 (full reversal)
• Application: A‑B patch cords at both ends
6.3 Type C (Pair‑swapped)
• Key Up to Key Down
• Fiber pairs cross: 1↔2, 3↔4, ..., 11↔12
• Application: A‑B patch cords at both ends
7. Environmental Requirements
• Operating Temperature: −40 °C to +85 °C
• Storage Temperature: −40 °C to +85 °C
• Protection: rodent‑resistant, dust‑tight, moisture‑resistant
8. Connector Housing Color Code
8.1 MPO
• SM APC (Standard Loss): Green housing + black boot
• SM APC (Super Low Loss): Yellow housing + black boot
• OM1/OM2 PC: Beige housing + black boot
• OM3/OM4 PC: Aqua / Heather Violet housing + black boot
8.2 MTP
• SM APC (Standard Loss): Green housing + black boot
• SM APC (Elite): Yellow housing + black boot
• OM3/OM4 PC: Aqua housing + black boot
9. Typical Applications
• High‑density data center backbone and aggregation cabling
• 40G/100G parallel optical transmission
• Building backbone, riser, and horizontal cabling
• Exposed routes, floor corners, cable trays, and harsh industrial areas
10. General Requirements
• All assemblies fully factory‑terminated and tested.
• Low insertion loss, stable return loss, and high reliability.
• Customizable length, polarity, connector gender, and jacket material/color.
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