Corning FREEDM 12-Fiber OS2 SMF-28 Ultra LSZH Dielectric Armored 0.9mm Indoor/Outdoor Cable (012Z8J-32125E2G)
Features and Benefits
Waterblocking technology — OSP (outdoor) applications
All-dielectric construction — Requires no grounding or bonding
Laminated glass yarns — Improved rodent resistance
UV- and microbe-resistant — Can be installed in ducts or conduits
Dry cable core using water-swellable elements — Allows efficient and craft-friendly cable preparation for outdoor or indoor/outdoor applications
Small diameter and bend radius — Easy installation in space-constrained areas
TB3 tight-buffered construction — Easy and consistent stripping up to 10 cm
Flame retardant — LSZH/FRNC

- Description
The Corning FREEDM 012Z8J-32125E2G is a 12-fiber, OS2 single-mode indoor/outdoor fiber optic cable featuring SMF-28® Ultra bend-improved optical fiber, 0.9mm TB3 tight-buffered construction, and dielectric armor. Designed for building backbones and outdoor installations, it supports installation in ducts, conduits, risers, and horizontal pathways. Its all-dielectric construction eliminates the need for grounding or bonding, while waterblocking elements, laminated glass yarn armor, and an LSZH/FRNC jacket provide protection for demanding installation environments.
Key Features
- 12-fiber OS2 single-mode optical cable
- SMF-28® Ultra bend-improved single-mode fiber
- 0.9mm TB3 tight-buffered construction for easy, consistent stripping up to 10cm
- All-dielectric construction; no grounding or bonding required
- Dielectric armor made with laminated glass yarn for improved rodent resistance
- Waterblocking technology with water-swellable elements
- UV- and microbe-resistant construction
- LSZH/FRNC flame-retardant, low-smoke, zero-halogen jacket
- Suitable for indoor and outdoor installation in ducts, conduits, risers, and horizontal pathways
- CPR reaction-to-fire classification: Cca-s1a,d1,a1
Optical Specifications
- Fiber Count: 12
- Fiber Category: OS2
- Fiber Type: Single-mode, bend-improved
- Fiber Name: SMF-28® Ultra
- Core Diameter: 8.2µm
- Cladding Diameter: 125µm
- Coating Diameter: 242µm
- Maximum Attenuation:1310nm: 0.38dB/km1383nm: 0.38dB/km1550nm: 0.25dB/km
- Compliance: ITU-T G.652.D and ITU-T G.657.A1
- Cable Cutoff Wavelength: 1260nm
Mechanical Specifications
- Nominal Outer Diameter: 9.3mm
- Cable Weight: 82kg/km
- Maximum Installation Tensile Strength: 2700N
- Crush Resistance: 2700N/10cm
- Minimum Bend Radius (Installation): 186mm
- Minimum Bend Radius (Operation): 93mm
- Tight Buffer Diameter: 0.9mm
- Outer Jacket Material: LSZH/FRNC
- Outer Jacket Color: Black
- Armor: Laminated glass yarn, dielectric construction
Environmental Specifications
- Installation Temperature: -5°C to +50°C
- Operating Temperature: -25°C to +60°C
- Storage Temperature: -25°C to +70°C
- Waterblocking: IEC 60794-1-22, Method F5B
- Flame Propagation: IEC 60332-1-2 and IEC 60332-3-24
- Reaction to Fire: EN 50575 and EN 13501-6
- RoHS Compliant
Applications
- Indoor and outdoor fiber optic networks
- Interbuilding and intrabuilding backbone cabling
- LAN backbone installations
- Duct and conduit installations
- Riser and horizontal cable pathways
- Installations requiring dielectric construction and rodent-resistant protection



