Product Overview

Double-Layer Duplex Fiber Optic Patch Cords feature a professional double outer sheath structure, upgraded based on conventional 2.0mm/3.0mm duplex fiber cables. The enhanced dual-layer protective design delivers higher compression resistance and mechanical stability. Available in two standard flat dimensions: 3.0×5.0mm and 4.0×7.0mm. Featuring an ultra-flat duplex layout, torsion-free routing and excellent bending performance, these pre-terminated jumpers are ideal for concealed wiring, narrow-gap cabling and high-density indoor FTTx & data center projects. Multiple fiber grades and connector types are fully customizable.

Key Features

- Optional Fiber Core: G.652D, G.657A1, G.657A2, G.657B3 (Single-mode); OM1/OM2/OM3/OM4/OM5 (Multi-mode)

- Optional Connector: SC, LC, ST, FC, E2K (UPC / APC polishing optional)

- Professional double-layer duplex structure upgraded from standard duplex cables, available in 3.0×5.0mm / 4.0×7.0mm flat dimensions

- Ultra-flat duplex structure, no twisting, ideal for narrow gap routing and concealed wiring

- High bending resistance, suitable for frequent bending and complex wiring routes

- Optional PVC or LSZH low-smoke zero-halogen flame-retardant jacket

- Fully tested before delivery; compliant with IEC 61300 & RoHS 2.0

Optical Specifications (Tested @850nm & 1310nm & 1550nm)

- Insertion Loss: ≤0.30 dB (Max)

- Return Loss: ≥50 dB (UPC); ≥60 dB (APC); ≥30 dB (Multi-mode)

- Connector Durability: ≤0.2 dB IL variation after 500 mating cycles

Mechanical & Environmental Specifications

- Fiber Dimension: 9/125μm single-mode / 50/125μm & 62.5/125μm multi-mode

- Cable Structure: Upgraded dual-sheath flat duplex structure; optional dimensions 3.0×5.0mm / 4.0×7.0mm

- Operating Temperature: -40°C ~ +75°C

- Storage Temperature: -40°C ~ +85°C

- Minimum Bend Radius: 20mm (dynamic); 10mm (static for G.657 & OM3/OM4/OM5)

Typical Applications

- FTTH indoor concealed wiring, wall routing and door gap wiring

- High-density data center cabinet interconnections

- Enterprise office weak current wiring and renovation projects

- ODN distribution wiring and space-limited indoor optical transmission

Order & Packaging

- Standard length: 1m, 2m, 3m, 5m, 10m; custom lengths acceptable

- Standard package: Each cord packed with plastic bag; custom labeling available

- Fast lead time for standard and small-batch customized orders