Fiber optic connectors come in a variety of models and specifications, depending on the type of fiber (single-mode or multimode), the type of connector (e.g., SC, LC, ST, FC, etc.), the fiber core diameter, the polarity of the fiber interface (e.g., UPC or APC), and whether it has special features (e.g., waterproof, dustproof, or chemically resistant).
Here are some common fiber connector models and specifications:
Connector type
SC (Subscriber Connector): a square interface that is commonly used in data centers.
LC (Lucent Connector): A small, square interface suitable for high-density wiring.
ST (Straight Tip): Circular interface, mostly used in outdoor equipment.
FC (Ferrule Connector): A circular interface that is typically used for single-mode fibers.
MTP MPO (Multifiber Termination Push On Multi-Fiber Push On): Used for high-density multi-fiber fiber connections.
Fiber type
Single-mode fiber connector: 9 125um fiber core diameter is used, which is suitable for long-distance transmission.
Multimode fiber connector: Use 50 125um or 625 125um fiber core diameter, suitable for short-distance transmission.
Polarity
UPC (Ultra Physical Contact): Provides standard physical contact with low insertion loss and return loss.
APC (Angled Physical Contact): The return loss is further reduced by tilting the fiber cutout.
Core diameter and cladding diameter
Single-mode fibers typically have a core diameter of 9 microns and a cladding diameter of 125 microns.
Multimode fibers may have a core diameter of 50 or 625 microns, the cladding diameter is also 125 microns.
Housing material
Plastics: Less costly, suitable for indoor applications.
Metal: Provides better mechanical strength and protection, suitable for outdoor or harsh environments.
Additional features
Waterproof: Suitable for outdoor use or environments that may come into contact with moisture.
Dustproof: Suitable for dusty environments.
Chemical-resistant: Suitable for environments where exposure to chemicals may occur.
Length
Fiber optic connectors are typically short in length, ranging from a few millimeters to a few centimeters.
When selecting a fiber optic connector, the appropriate model and specification should be determined based on the specific application needs and site environment. In addition, the installation and testing of fiber optic connectors is also very important to ensure fiber links.