12F MTP-LC Straight Harness Cable

12-core fiber harness cable with one MTP connector and 6×LC duplex / 12×LC simplex connectors
Designed for high-density data center and 10/40/100G Ethernet applications
Supports 40G QSFP+ to 10G SFP+ direct connections
Features low insertion loss, high return loss, and good durability
Complies with global telecom and data center optical standards
Available in three fanout structures for flexible deployment
Wide operating temperature range for harsh environments

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Product Description
Specification
Product Advantage

Product Description

1. Product Overview

12-core MTP to 6×LC Duplex (6×LC Uniboot; 12×LC Simplex) straight harness cable assemblies.

These cables are equipped with MTP connectors on one end and LC connectors on the other, with 12 fanout legs optimized for 40G QSFP+ PLR4 to 10G SFP+ LR direct connections and high-density data center patching. They support 10/40/100G Ethernet, 40G LR4 PSM, 40GBASE-SR4, and fiber channel applications.

2. Compliance Standards

• TIA/EIA-604 series (FOCIS1, FOCIS2, FOCIS3, FOCIS4, FOCIS5, FOCIS10)

• IEC 61754 series (IEC 61754-7, IEC 61754-20, etc.)

• IEC 61300 series (Insertion loss, return loss, end-face geometry)

• GR-326, GR-1435-CORE

• JIS C5973, JIS C5982

• TIA-568-C structured cabling

• IEEE 802.3 (40G/100G Ethernet)

• 10G Fiber Channel compliant

3. Key Features

• Low insertion loss and high return loss

• MT-based multi-fiber connector (supports 4, 8, 12, 24 fibers)

• Economical for mass fiber termination

• Suitable for low-loss single-mode and multi-mode applications

• Available in round cable, oval cable, and bare ribbon structures

• Color-coded housings for fiber type, polish type, and grade identification

• Excellent repeatability and interchangeability

Specification

4. Optical Performance

4.1 Insertion Loss (IL)

Component	Single-mode (APC 8°)	Multi-mode (PC)
MTP (Standard)	≤0.75 dB (Max), ≤0.50 dB (Typical)	≤0.60 dB (Max), ≤0.50 dB (Typical)
MTP (Elite Low Loss)	≤0.35 dB (Max), ≤0.20 dB (Typical)	≤0.35 dB (Max), ≤0.20 dB (Typical)
LC	≤0.30 dB	≤0.30 dB

4.2 Return Loss (RL)

Component	Single-mode (APC)	Multi-mode (PC)
MTP	≥60 dB	≥25 dB
LC	APC ≥60 dB; UPC ≥50 dB	≥35 dB

4.3 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

5. Cable Parameters (12F Microfiber Cable)

Parameter	Value
Fiber count	12 cores
Outer diameter (OD)	3.0 ±0.15 mm
Tensile strength (short-term)	180 N
Tensile strength (long-term)	90 N
Crush load (short-term)	500 N/100 mm
Crush load (long-term)	150 N/100 mm
Min. bending radius (static)	10D
Min. bending radius (dynamic)	20D

6. Structure Types

Type 1: MTP to 12×LC Simplex

• Fanout OD: 2.0 mm or 0.9 mm

• Fanout length: 0.5 m

• Main cable OD: 3.0 mm

• MTP gender: Female / Male

Type 2: MTP to 6×LC Duplex

• Fanout OD: 2.0×4.1 mm or 0.9 mm

• Fanout length: 0.5 m

• Main cable OD: 3.0 mm

• MTP gender: Female / Male

Type 3: MTP to 6×LC Uniboot

• Fanout OD: 2.0 mm or 3.0 mm

• Fanout length: 0.5 m

• Main cable OD: 3.0 mm

• MTP gender: Female / Male

7. Connector End-Face Geometry

7.1 MTP End-Face (IEC 61300-3-30)

Item	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 fibers)	-300 nm	300 nm
DH Adjacent	-300 nm	300 nm
DH Average	-300 nm	300 nm
Core Dip (MM)	-200 nm	300 nm

7.2 LC End-Face Geometry

Item	PC	APC
Radius of curvature	7–25 mm	5–15 mm
Apex offset	≤50 μm	≤50 μm
Fiber spherical height	±100 nm	±100 nm
Angular offset	–	8°±0.5°

8. End-Face Quality (IEC 61300-3-35:2015)

Single-mode LC

Zone	Range	Scratches	Defects
A (Core)	0–25 μm	None	None
B (Cladding)	25–115 μm	None	None
C (Adhesive)	115–135 μm	None	None
D (Contact)	135–250 μm	None	None

Multi-mode LC

Zone	Range	Scratches	Defects
A (Core)	0–65 μm	None	None
B (Cladding)	65–115 μm	None	None
C (Adhesive)	115–135 μm	None	None
D (Contact)	135–250 μm	None	None

9. Typical Applications

• High-density data center fiber patching

• 40G QSFP+ to 10G SFP+ interconnections

• 40G LR4 PSM, 40GBASE-SR4 links

• 10/40/100G Ethernet deployment

• Fiber equipment internal connections

• Fiber-to-building distribution

Product Advantage

1

Low insertion loss and high return loss, ensuring stable optical performance.
2

MT-based multi-fiber design, suitable for high-density data center deployment and space saving.
3

Economical solution for mass fiber termination, reducing overall costs.
4

Wide compatibility, supporting 10/40/100G Ethernet and various optical standards.
5

Durable and reliable, with good repeatability, interchangeability and harsh environment adaptability.
6

Flexible structure options (3 types) and color-coded housings for easy management and deployment.