Dual Core Patchcord

Product Overview

Compared to a simplex patch cord, a duplex patch cord joins two simplex cords side by side, also known as a figure-8 cable. It is classified by connector type into FC, SC, LC, ST, MU, and others, and by end-face polish into PC, UPC, APC, and others. It is used for device interfaces that require simultaneous duplex fiber connections, such as duplex fiber transceivers, switches, and other equipment with optical ports. The product is flexible and easy to bend, facilitating duplex fiber patch management between equipment racks and distribution frames. The product delivers stable and reliable performance and is widely used in communication network construction, operation, and maintenance.

Structure Type:
Side-by-side dual fibers, figure-8 cable
Connector type:
FC, SC, LC, ST, MU options available
End-face type:
PC, UPC, APC options available
Applicable equipment:
Duplex fiber interface equipment

Key Advantages

Side-by-Side Dual-Fiber Design

Figure-8 cable structure with two fibers side by side, matching the interface requirements of duplex equipment

Multiple connector options

FC, SC, LC, ST, MU, and other connector types meet the interface requirements of different equipment

Multiple end-face options

PC, UPC, and APC end-face polishes are available, matching different return-loss requirements

Integrated Cabling

The integrated duplex patch cord reduces cable clutter and facilitates cable management

Dual Core Patchcord

Application Scenarios

Carrier Transmission Node

Carrier Transmission Node

For fiber access, convergence distribution and line management

Data Center

Data Center

Ensure stable operation of cabinets, power distribution, cabling and key equipment

FTTx Fiber Access

FTTx Fiber Access

Compatible with FTTH, building fiber access and ODN branching nodes

Low-Voltage Systems for Campus and Buildings

Low-Voltage Systems for Campus and Buildings

Supports access and management for park and building low-voltage systems

Technical Specifications

Optical performance indicators of single-mode fiber optic connectors, unit: dB
Single-mode (1310nm and 1550nm)
No. Project Name Insertion loss Additional loss Return Loss Return loss variation
PC and UPC type APC Type PC type UPC type APC Type
A Before test ≤0.35 ≤0.35 ≥45 ≥50 ≥60
B Interchangeability test ≤0.5 ≤0.5 ≥43 ≥48 ≥58
C Mechanical durability ≤0.5 ≤0.5 ≤0.2 ≥43 ≥48 ≥58 ≤5
D Tensile test ≤0.5 ≤0.5 ≤0.2 ≥43 ≥48 ≥58 ≤5
E High temperature test ≤0.5 ≤0.5 ≤0.2 ≥43 ≥48 ≥58 ≤5
F Low temperature test ≤0.5 ≤0.5 ≤0.2 ≥43 ≥48 ≥58 ≤5
G Humidity and heat test ≤0.5 ≤0.5 ≤0.2 ≥43 ≥48 ≥58 ≤5
H Salt spray test ≤0.5 ≤0.5 ≤0.2 ≥43 ≥48 ≥58 ≤5
I Transportation test ≤0.5 ≤0.5 ≤0.2 ≥43 ≥48 ≥58 ≤5
*Note 1: Additional loss = insertion loss after routine test – insertion loss before test; the value is zero if the result is negative.
*Note 2: Return loss variation = return loss before test – return loss after routine test; the value is zero if the result is negative.

 

Optical cable and wire materials
Cable Length m
Core Count core
Specification Model □ Single-mode □ G652 □ G657B
□ Multimode □ 50/125 □ 62.5/125
□ ¢2.0 □ Single-ended □ Dual-end
□ ¢3.0 □ Single-ended □ Dual-end
Loose parts □ FC □ PC □ APC
□ SC □ PC □ APC
□ LC □ PC □ APC
□ ST □ PC □ APC
□ Other □ PC □ APC
Ferrule □ PC □ UPC
□ APC Small Step □ APC Large Step
Quality Grade □ Zero Defect
□ Class P
□ Class A
□ Class B
Packaging □ Huijue □ Neutral □ Other

Note: Specifications shown are standard values. Actual performance may vary depending on installation environment, component compatibility, and grid conditions. We reserve the right to continuously optimize design and specifications. For final technical proposals and formal quotations, please contact our sales team to request an official specification confirmation document.

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Contact Engineering Team