ALTOS® Dielectric Loose Tube, Gel-Free Cable
High-Performance Fiber Optic Cable for Outdoor and Indoor Applications
The ALTOS® Loose Tube, Gel-Free Cable by Corning is engineered to deliver reliable, high-speed data transmission in both outdoor and limited indoor settings. Designed for backbones in lashed aerial and duct installations, this all-dielectric, gel-free cable offers exceptional durability and ease of installation.
Key Features
1. Gel-Free Waterblocking Technology
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Simplified Access: Utilizes water-swellable materials instead of traditional gels, making cable access straightforward and eliminating the need for cleanup.
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Enhanced Protection: Provides effective waterblocking to safeguard fibers from moisture without the mess associated with gel-filled cables.
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2. All-Dielectric Construction
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No Grounding Required: The all-dielectric design eliminates the need for grounding or bonding, simplifying installation.
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Lightweight and Durable: Features a medium-density polyethylene jacket that is rugged, durable, and easy to strip, providing superior protection against environmental factors.
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3. Flexible Buffer Tubes
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Craft-Friendly Design: Flexible buffer tubes are easy to route in closures, facilitating efficient installation and maintenance.
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SZ-Stranded Loose Tube Design: Isolates fibers from installation and environmental stresses while allowing easy mid-span access.
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4. Versatile Applications
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Outdoor and Indoor Use: Suitable for outdoor lashed aerial and duct installations, and can be used indoors when installed according to National Electrical Code® (NEC®) Article 770.
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Multiple Fiber Types: Available in various fiber types, including single-mode (OS2) and multimode (OM1, OM2, OM3, OM4), to meet diverse network requirements.
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Applications
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Backbone Networks: Ideal for backbone applications in campus and metropolitan area networks.
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Data Centers: Provides high-density, reliable connections for data center interconnects.
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Telecommunications: Suitable for central office and headend applications, offering robust performance in critical communication networks.
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Enterprise Networks: Delivers organized and secure fiber management across corporate campuses.
Technical Specifications
| Specification | Details |
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| Fiber Count | 6 to 432 fibers |
| Fiber Types | Single-mode (OS2), Multimode (OM1, OM2, OM3, OM4) |
| Buffer Tube Diameter | 2.5 mm |
| Outer Jacket Material | Medium-density polyethylene |
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
| Installation Temperature | -30°C to +70°C (-22°F to +158°F) |
| Storage Temperature | -40°C to +70°C (-40°F to +158°F) |
| Standards Compliance | ANSI/ICEA S-87-640; RoHS Free of hazardous substances according to RoHS 2011/65/EU |
Why Choose Corning’s ALTOS® Loose Tube, Gel-Free Cable?
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Proven Performance: Corning’s extensive ALTOS® loose tube fiber optic cable portfolio offers reliable, high-speed data transmission in duct, buried, or aerial outdoor applications.
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Ease of Installation: The gel-free design and flexible buffer tubes simplify installation and maintenance, reducing labor costs.
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Durability: Rugged construction ensures long-term performance in various environmental conditions.

