24cores MPO Female to 12x SN Duplex harness Cables assemblies
The 24-Core MPO to SN Harness Cable Assembly is a premium, ultra-high-density optical breakout solution engineered specifically for next-generation hyperscale data centers and AI computing clusters. This assembly facilitates the seamless transition from high-count MPO backbone infrastructure to SN (Small Form-factor Next-generation) transceiver interfaces. By converting a single 24-fiber MPO trunk into 12 duplex SN channels, this harness maximizes front-panel port density, optimizes rack space utilization, and provides a highly scalable physical layer for 400G, 800G, and beyond.
- Trunk Interface: Terminated with a high-precision 24-fiber MPO/MTP connector (Male or Female), utilizing stainless steel guide pins to ensure sub-micron alignment accuracy and ultra-low insertion loss.
- Breakout Interface: Fans out into 24 individual SN duplex connectors. The SN form factor delivers a 50% smaller footprint than standard LC duplex connectors, significantly enhancing front-panel port density.
- Cable Architecture: Utilizes robust 2.0mm tight-buffered breakout legs, providing superior tensile strength, crush resistance, and bend performance compared to standard 0.9mm fibers.
- Fiber & Jacket Options: Available in OS2 Single Mode (Yellow), OM3/OM4 Multimode (Aqua), and Wideband OM5 (Lime Green). The outer jacket complies with LSZH or OFNR/OFNP fire safety ratings.
- Strain Relief & Identification: Features a reinforced, molded breakout fan-out kit for optimal strain relief. Each 2.0mm leg is individually laser-printed with sequential numbering for precise traceability.
Description
Optical’ s Specification:
| Spec items. | Single mode (APC 8-degree polished) | Multimode (PC Flat polish) |
| Insertion loss (MPO)
(IEC 61300-3-34) |
Standard loss：≤0.75dB(max), ≤0.35dB(Typical)
Super Low loss：≤0.35dB(max), ≤0.20dB(Typical) |
Standard loss：≤0.6dB(max), ≤0.35(Typical)
Super Low loss：≤0.35dB(max) , ≤0.20dB(Typical) |
| Insertion loss (SN)
(IEC 61300-3-6) |
≤0.3dB | ≤0.3dB |
| Return loss(MPO) | ≥60dB（8degree polishing） | ≥25dB |
| Return loss(SN) | APC≥60dB; UPC≥50dB | ≥35dB |
| Durability | <0.3dBtypical change, 200 matings | |
| Interchangeability | ≤0.2dB | |
| Tensile strength | >70N | |
| Operating Temperature | -40 to + 85°C | |
MPO End-Face 3D Interference Index
| Item (IEC-61300-3-30) | Minimum | Maximum | ||
| Radius of curvature (mm) | ROC-X(ABS) | 2000 | \ | |
| ROC-Y(ABS) | 50mm | \ | ||
| Angle | Angle-X | -0.2° | -0.2° | |
| Angle-Y | APC | 7.85° | 8.15° | |
| PC | -0.2° | -0.2° | ||
| Fiber height (nm) | 1000nm | 3500nm | ||
| Max.DH.All Fiber: | -300nm | 300nm | ||
| DH.Adj: | -300nm | 300nm | ||
| DH.Ave Fiber: | -300nm | 300nm | ||
| Core Dip: | SM | N/A | N/A | |
| MM | -200nm | 300nm | ||
SN End-face Quality (SM)
| Zone | Range (μm) | Scratches | Defects | Reference |
| A: Core | 0 to 25 | None | None | IEC 61300-3-35:2015 |
| B: Cladding | 25 to 115 | None | None | |
| C: Adhesive | 115 to 135 | None | None | |
| D: Contact | 135 to 250 | None | None | |
| E: Rest of ferrule | None | None | ||
MPO Connector’s Details:
| Connector | Fiber Channel |
 |
 |
| MPO Female Connectors | 24 Fibers |
| Note: Female connector need to connect with male connector type. | |
| Connector | Reference | Housing Details |
| MPO Single Mode | IEC 61754-7 | SM APC: Green connectors+black boot (Standard Loss MPO)
SM APC: Yellow connectors+black boot (Super low loss MPO) |
| MPO Multimode | IEC 61754-7 | OM1&OM2 PC: Beige connectors+black boot (Standard Loss MPO)
OM3&OM4 PC: Aqua connectors+black boot (Standard&Super low loss MPO) OM3&OM4 PC: Heather Violet connectors+black boot (Standard loss MPO) |
- Meets IEC Standard IEC-61754-7; IEC61755, Telcordia GR-1435-CORE, JIS C5982; TIA-604-5(FOCIS5) compliant
- Structured cabling per TIA-568-C
- 10G Fiber Channel Compliant
- 40G and 100G IEEE 802.3
SN Connector’s Details:
Cable Parameters-16F Microfiber cable
| Item | Contents | Unit | Data |
| Fiber type | / | / | OS2 9/125um |
| Fiber Count | / | piece | 24 |
| Cable diameter | / | mm | 3.0±0.2 |
| Strength member | Material | / | Aramid Yarn |
| Max. tensile load | / | / | Short term:150N; Long term:80N |
| Outer sheath | material | / | LSZH, Plenum(OFNP),Riser(OFNR) |
| Temperature range | -20℃ ~ +70℃ |
Flame retardant Performance
| Cable material | Standard |
| LSZH | CPR : B2ca, Cca, Dca, Eca,Fca |
| OFNP&OFNR | UL-94V0 |
Cable Jacket Material
| Item | OFNP Plenum | LSZH | OFNR Riser |
| Smoke emission | Extremely low | Very low | Heavy black smoke |
| Toxic halogen gas | None | Zero | High (chloride) |
| Fire resistance rank | Highest | Medium | Medium-low |
| Plenum air space use | Allowed | Not UL certified, restricted | Strictly prohibited |
| Vertical riser shaft | Supported | Supported | Optimized for riser shafts |
| Rigidity & hardness | Stiff, firm texture | Soft, flexible | Moderate flexibility |
| Cost | Highest | Mid-range | Lowest |
Length Tolerance
| Overall Length(L)(m) | length of tolerance(cm) |
| 0<L<1 | +5/-0 |
| 1<L<10 | +10/-0 |
| 10<L<40 | +15/-0 |
| 40<L | +0.5% x L/-0 |
