What type is the FTTH input cable? What is GYDGA optical cable? The following takes the GYDTA 192B1.3 optical cable as an example to talk about the naming of commonly used optical cable models.
GYDTA optical cable
GY indicates that the classification through the optical cable is indoor (field) type. Optical cables can be divided into several categories according to different occasions: outdoor, indoor and indoor and outdoor, and each category is subdivided into subcategories. Commonly used cable technology classifications also include:
Wind-blown miniature outdoor optical fiber cable for GYC communication;
GJ optical cable in the communication room (bureau);
GJX——indoor butterfly lead-in communication optical cable;
Indoor and outdoor optical cables for GJY communication;
GD-optical hybrid cable.
The design of reinforced building components in optical cables can usually use different metals. When non-metallic reinforced management components are used, a letter F is generally added after the classification work code of the optical cable. For example: GYFTY means non-metallic reinforced core optical cable.
GYDTA optical cable
D indicates that the organization of the optical fiber in the optical cable is an optical fiber ribbon, and the optical fiber organization in the optical cable includes:
D - optical fiber ribbon;
S——cured fiber bundle type.
The cured optical fiber bundle is a distribution structure of optical fiber bundles with a relatively fixed position. Many people think of discrete fiber structures as bundle structures. In fact, bundle structure has another meaning.
fiber structure
T indicates that the water blocking method of the optical cable is filled. The water blocking structure of the optical cable includes:
HT──semi-dry type;
T ── filling type.
The filled water-blocking structure can mean that the cable core of the optical cable is completely filled with water-blocking ointment, and the semi-dry type refers to the part of the cable core of the optical cable filled with water-blocking ointment; taking the loose-tube stranded optical cable as an example, the filled loose-tube Stranded optical cable means that not only the water-blocking ointment (ie, fiber ointment) is pressure-filled in the loose tube, but also the gap between the loose tubes is filled with water-blocking ointment (ie, cable ointment). Semi-dry layer-stranded optical cable technology usually fills fiber paste with concrete in the loose tube, and other important parts of the cable core are not filled with cable paste, but replaced with dry water-blocking materials such as water-blocking yarn.
Fiber Internal Structure
GYDTA is a layered circular non-self-supporting optical cable, and the optical fiber in the optical cable is a plastic loose sleeve structure.
J- is a tightly covered structure.
The G-cable core is a skeleton structure;
X-core is a central tubular structure;
C-The bearing capacity structure is a self-supporting structure;
8-The shape of the section is "8";
From the above introduction, it can be known that GYDTA192b1.3 type means: metal strength member, optical fiber ribbon loose tube layer stranded filling type, aluminum polyethylene rubber rubber outdoor optical cable for communication, including 192 B1.3 single-mode optical fibers.
However, the nomenclature of fiber optic cable models is much more complicated than the above, and more can be found in yd/t 908-2020.
