900um & 250um Fiber Adds An Additional Layers G652D G657A1 G657A2 SM For FO Cable Production
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900um & 250um Fiber Adds An Additional Layers G652D G657A1 G657A2 SM For FO Cable Production
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Features
Basic Infomation
Place of Origin: China
Brand Name: HICORPWELL
Certification: IEC 60794-2-10/11
Model Number: SM 900um & 250um Fiber Adds an Additional Layers
High Light:

G652 250um Coated Bare Fiber

,

FO Cable 900um Bare Optical Fiber

Payment & Shipping Terms
Packaging Details: Standard length: 2km/roll (as per your requirements)
Payment Terms: Western Union, L/C, T/T
Supply Ability: 1000KM Per Month
Specifications
Fiber Type: G652/G657 250um Bare Fiber
Paintcoat Color: Aqua,yellow ,blue Or Others
1310nm: 0.36-0.22 DB/Km
1550nm: 0.5-0.4 DB/Km
Fiber: G652D,G657A
Certificate: IEC 60794-2-10/11
Application: Pigtail & FO Cable
Type: SM 900um & 250um With Additional Layers
Product Description

900um & 250um Fiber Adds an Additional Layers G652D G657A1 G657A2 SM for FO Cable Production

 

The Structure of a 250um Coated Fiber (Bare Fiber)
 
  • Core (9um for standard single mode fibers, 50um or 62.5um for multimode fibers)
  • Cladding (125um)
  • Coating (soft plastic, 250um is the most popular, sometimes 400um is also used)
The Structure of 900um Tight-buffered Fiber
 
  • Core (9um for standard single mode fibers, 50um or 62.5um for multimode fibers)
  • Cladding (125um)
  • Coating (soft plastic, 250um)
  • Tight buffer (hard plastic, 900um)

 

Loose tuber fiber (250um) places up to 12 bare 250um fibers inside a flexible plastic tube, which are also color coded and situated around a central strength member with Kevlar or aramid yarn for protection.

The fiber counts of loose-tube 250um fiber cable range from 6 to 144, and besides the 6-fiber cable, the fibers are also grouped into sets of 12 for maximum density. Loose-tube 250um fiber cables are less than half the size of 900um fiber cables.

900um & 250um Fiber Adds An Additional Layers G652D G657A1 G657A2 SM For FO Cable Production 0900um & 250um Fiber Adds An Additional Layers G652D G657A1 G657A2 SM For FO Cable Production 1

Tight-buffered 900um fiber includes an additional 900um layer of hard plastic over the 250um fibers for protection.

Within the cable, several of these color-coded 900um tight buffered fibers are situated around a central strength member

and then covered with Kevlar or aramid yarn for protection, a rip cord and then the jacket.

Tight-buffered 900um fiber cable comes in various fiber counts that typically range from 2 to 144 fibers,

with larger fiber counts featuring fiber subunits of 6 or 12 fibers within the cable.

For example, a 144-fiber cable usually has twelve 12-fiber subunits while a 36-fiber cable could

have six 6-fiber subunits or three 12-fiber subunits.

From Outdoor to Indoor Applications

  • Generally speaking, tight-buffered 900um fiber cables are used for indoor applications, including intra-building riser and plenum applications and in the data center. Loose-tube 250um fiber cables are typically used in outside plant (OSP) applications, such as inter-building duct, aerial and direct buried installations.

    While indoor/outdoor cables are popular for eliminating the need for service entrance splicing to in-building cable, OSP loose-tube 250um cabling must be terminated within 50 feet of entering a facility. To accomplish this, breakout kits are used to build the 250um cable up for protection and termination to 900um connector boots.

  • The problem with breakout kits is that they add additional material costs and a significant amount of labor. One option is to terminate the 250um fiber directly to 250um connector boots. This can speed network deployment in the data center and fiber-to-the-home applications.

    900um & 250um Fiber Adds An Additional Layers G652D G657A1 G657A2 SM For FO Cable Production 2

 

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