OM4 12 cores MPO Female to 6x LC Duplex harness Cables assemblies
The OM4 12-Core MPO-LC Harness Cable is a premium breakout assembly engineered for high-speed data centers. One end terminates with a high-density 12-fiber MPO connector (Male or Female), adhering to IEC-61754-7 standards. This trunk fans out into 6 individual LC Duplex connectors, enabling seamless connectivity to standard network hardware.
The assembly utilizes Laser-Optimized 50/125μm OM4 multimode fiber, which offers superior bandwidth compared to OM3. It typically features 2.0mm or 3.0mm round riser (OFNR) or plenum (OFNP) rated breakout legs for robustness and flexibility.
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 (LC/SC/FC/ST)
(IEC 61300-3-6) |
≤0.3dB | ≤0.3dB |
| Return loss(MPO) | ≥60dB（8degree polishing） | ≥25dB |
| Return loss(LC/SC/FC/ST) | 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 | ||
LC/SC/FC/ST End-face Quality (MM)
| Zone | Range (μm) | Scratches | Defects | Reference |
| A: Core | 0 to 65 | None | None | IEC 61300-3-35:2015 |
| B: Cladding | 65 to 115 | None | None | |
| C: Adhesive | 115 to 135 | None | None | |
| D: Contact | 135 to 250 | None | None | |
| E: Rest of ferrule | None | None | ||
Features:
- 100% pre-terminated and tested in factory to ensure transfer performance.
- Low insertion loss, high return loss
- MT based Multi-fiber Connector, 4,8,12 and 24 fiber connector terminations and assemblies
- Economical solution for mass-termination of fiber
- Designed for low loss and standard loss SM and MM applications
- Ruggedized round cable, oval cable and bare ribbon options available
- Color coded housings available to differentiate fiber type, polish type and/or connector grade
- Good in repeatability and exchangeability
MPO Connector’s Details:
| Connector | Fiber Channel |
 |
 |
| MPO Female Connectors | 12 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
Cable Parameters-12F Microfiber cable
| Item | Contents | Unit | Data |
| Fiber type | / | / | OM4 50/125um |
| Fiber Count | / | piece | 12 |
| Cable diameter | / | mm | 2.0±0.2&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 |
Cable Drawing
&Polarity
This is Staggered harness cable, Each fanout cable length is different.
This is Straight harness cable, Each fanout cable length is same.
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 |
Applications
1．High-Density 40G to 10G Breakout Cabling
This is the primary application for 12-fiber harness cables in data center environments. It is widely used to connect high-speed switches populated with 40G QSFP+ transceivers to existing 10G SFP+ equipment. By utilizing parallel optics (such as 40GBASE-SR4), the 12-fiber MTP® connector efficiently transmits 4x duplex channels, allowing seamless and cost-effective integration between new 40G network hardware and legacy 10G infrastructure.
- Backbone-to-Rack System Transition
Designed for high-density backbone cabling, this harness acts as a critical bridge between high-capacity MTP® trunk assemblies and traditional rack systems. The 2.0mm fanout legs provide enhanced tensile strength and crush resistance, making them ideal for routing through cable managers and connecting core network trunks to individual patch panels or access layer switches. - 100G Parallel Optics Deployments
In modern data centers, this 12-fiber fanout solution supports short-range 25G–100G direct connections. It facilitates the migration from duplex-based 10G/25G applications to parallel optics-based 100G Ethernet, maximizing port utilization and eliminating fiber waste during network upgrades. - SAN and HPC Interconnects
The ruggedized 2.0mm construction ensures high reliability in demanding environments. It is extensively deployed in Storage Area Networks (SAN) and High-Performance Computing (HPC) clusters to deliver low-latency, high-bandwidth links between storage arrays, servers, and core switches, maintaining signal integrity even in congested rack spaces.
Summary: The 12F 2.0mm harness is specifically optimized for high-density backbone transitions and 40G/100G breakout applications, offering the physical durability required for complex data center routing while ensuring seamless speed migration.
