① 分类的代号
    GY - 通信用室（野）外光缆
    GJ - 通信用室（局）内光缆

② 加强构件的代号
    无符号- 金属加强构件
    F - 非金属加强构件

③ 结构特征的代号
无符号 - 松套结构
    J - 紧套结构
    X - 中心管式结构
    T - 填充式结构
    Z - 阻燃型
    无符号 - 非阻燃型

④ 护套的代号
    Y - 聚乙烯护套
    V - 聚氯乙烯护套
    U - 聚氨酯护套
    A - 铝 - 聚乙烯粘结护套
    S - 钢 - 聚乙烯粘结护套
    W - 夹带钢丝钢－聚乙烯粘结护层

⑤ 外护层的代号
参照GB/T 2952.1的规定，用数字表示。如：
    53 - 皱纹纲带铠装聚乙烯外护套
    33 - 钢丝铠装聚乙烯外护套
    93 - 钢丝编织铠装聚乙烯外护套

① 光纤数量的代号
    用光缆中同类别光纤的实际有效数目的数字表示

② 光纤类别的代号
    光纤类别应采用光纤产品的分类代号表示，即用大写A和B分别表示多模光纤和单模光纤，再以数字或小写字母表示不同种类的多模光纤和单模光纤。常用代号如下:

    A1a - 50/125μm二氧化硅系渐变型多模光纤
    A1b - 62.5/125μm二氧化硅系渐变型多模光纤            

    B1.1 - 非色散位移单模光纤(ITU-T G 652A、B光    纤），（B1.1可简写为B1）
    B1.3 - 波长扩展的非色散位移单模光纤
         (ITU-T G 652C、D光纤）
    B4 - 二氧化硅系非零色散位移单模光纤
         (ITU-T G.655光纤)

① Symbol of the classification
    GY - outdoor（field）communication optical cable
    GJ - indoor communication optical cable

② Symbol of strength member
    No symbol - metallic strength member
    F - non-metallic strength member

③ Symbol of structure characteristics
   No symbol - loose tube structure
   J -  tight structure
   X - central tube structure
   T - jelly-filled structure
   Z - Flame retardant type

 
④ Symbol of sheath 
   Y - PE sheath
   V - PVC sheath
   U - polyurethane
   A - Al-polyethylene laminated sheath
   S - steel-polyethylene laminated sheath
   W - with embedding steel-polyethylene laminated sheath

⑤ Symbol of protective covering
According to the provision of GB/ T 2952.1, denoted with the figure, such as:
   53 - Corrugated steel-tape armored polyethylene outer sheath
   33 - Steel wire armored polyethylene outer sheath
   93 - Steel wire braid armored polyethylene outer sheath

① Symbol of fiber quantity
   It’s denoted by virtual number of congeneric fiber in fiber optic cable.

② Symbol of fiber sort 
   It is denoted by classified symbol of fiber，namely, capital letter A and B denote multimode fiber and single-mode fiber separately, number or small letter denote different kinds of multimode fiber and single-mode fiber. Common symbols are as follows:

   A1a - 50/125μm silicon dioxide series gradient multimode fiber
   A1b - 62.5/125μm silicon dioxide series gradient multimode fiber
   B1.1 - dispersion-unshifted single-mode fiber (ITU-T G.652A,B fiber), (B1 is shorthand for B1.1)
   B1.3 - extended wavelength band dispersion-unshifted
single-mode fiber (ITU-T G.652C,D fiber)
   B4 - silicon dioxide series non?zero?dispersion shifted
single-mode fiber (G.655 in ITU-T fiber)