Methods of preparing the cable model

Ⅰ ClassificationGY Communication Room (wild) external cableGM Mobile Communication CableGJ communication with the chamber (Bureau) within the cableGS within the optical communication equipmentCommunication with the submarine cable GHGT with a special fiber optic cable communications

Ⅱ strengthenNo metal components to enhance memberF non-metallic strength memberHeavy metal strength member G

Ⅲ structural characteristics of light cablesS fiber loose tube coating structureJ sleeve coated fiber structureD fiber ribbon structureStranded structure withoutG frame groove structureX rope center tube (coated) structureFilled structure TB flat structureZ retardantC self-supporting structure

Ⅳ jacketY polyethyleneV PVCF fluorine plasticU polyurethaneE polyester elastomerA strip - polyethylene sheath bondedS strip - polyethylene sheath bondedW entrained steel wire - polyethylene sheath bondedL AluminumG SteelQ lead

Ⅴ outer sheath

(1) armor0 without armorTwo pairs of steel3 small round wire4 coarse round wire5 corrugated steel6 double round wire

(2) outside the layer or jacket1 fiber outer sheath2 PVC jacket3 polyethylene sheath4 deposited nylon sheath polyethylene sheath plus5 polyethylene pipe

Ⅵ fiber core to write the number directly from the Arabic numeralsCategory A Ⅶ fiber single-mode fiber multimode fiber B


Example
Ⅰ Ⅱ Ⅲ Ⅳ Ⅴ --- Ⅵ ⅦClassification structure to enhance component cable jacket outer sheath --- fiber count fiber types
■ composition of fiber typesCable Type the code from the fiber type composition and size of the code, in the middle separated by a space.

■ Type CodeType of fiber optic cable consists of five parts, as shown below. That all parts are coded.
A classification code
CY ---- Communication Room (wild) external cable

2 strengthen the component code
(Unsigned) ---- Metallic strength memberF ---- non-metallic strength member

3 structure of the code
D ---- fiber ribbon structure(Unsigned) ---- fiber loose tube coating structureJ ---- sleeve coated fiber structure(Unsigned) ---- stranded structureG ---- skeleton slot structureX ---- central tube cable (coating) structureT ---- ointment complete charge structure(Unsigned) ---- dry water-blocking structureE ---- sheath oval cross-sectionC ---- self-supporting structureB ---- flat shapeZ ---- Flame Structure

4 layers of protection code
Y ---- polyethylene sheathV ---- PVC jacketA ---- aluminum - polyethylene sticky sheath structure (referred to as A sheath)S ---- steel - polyethylene sticky sheath structure (referred to as S jacket)W ---- entrainment parallel wire steel - polyethylene sticky sheath structure (referred to as W jacket)

5 outer sheath of the Code
Generation of armor on behalf of No. No. outside layer or jacket0 without armor layer 1 fiber outside3 small round single-wire 3 sets of polyethylene5 corrugated steel plus 4 sets of nylon-coated layer of polyethylene

■ Specification CodeSpecifications of the fiber optic cable specifications and the specifications conductive core wire composition, optical and electrical conductivity between the wire size to use the "+" separated.
(1) fiber specifications: fiber size is the number of optical components and fiber-type code. The number of fiber optic cable in the same category with the actual effective number of optical digital representation. Fiber can also be used with (control) number and each band (tube) fiber-based computing the number of parentheses to represent.
Fiber types of code

Behalf of the category corresponding to the number of fiber ITUT standardAla or Al 50/125μm Department of graded silica multimode fiber G.651Alb 62.5/125μm Department of graded silica multimode fiber G.651B1.1 or B1 ordinary single-mode silica fiber G.652B4 non-zero dispersion shifted single-mode fiber G.655

(2) conductive wire Specifications: The composition of conductive wire specifications comply with the standard copper cable conductive core wire composition requirements. GYFTY04 24B1Code constitutes Description: Stranded loose tube filling, non-metallic central strength member, polyethylene sheath plus nylon layer overlying termite communication outdoor optical cable, B1.1 class contains 24 single-mode fiber.