What is the difference between SC APC and SC UPC?

FTTH fiber optic cables are the backbone of our modern communication networks, and their performance is critical for achieving high-speed data transmission with minimal data loss. Two popular types of fiber optic cable connectors are the SC APC (Angled Physical Contact) and SC UPC (Ultra Physical Contact).

SC APC and SC UPC connectors have a similar appearance and function. Both of them feature a snap-in design that allows for reliable and easy connection between fiber optic cables and devices. However, the difference lies in the way they connect the fiber cores.

SC UPC connectors have a flat PC (Physical Contact) endface with a slight curvature. The flat endface means that the fiber cores make contact with each other in a perpendicular manner, which can cause some light scattering. Nevertheless, the uniform pressure on the fiber cores results in minimal insertion loss and reflectance, making SC UPC connectors ideal for low-power applications like local area networks (LANs).

On the other hand, SC APC connectors have an angled endface that reduces the back reflection or return loss of the connector. The angled design is similar to the FC APC (Angled Physical Contact) connector, which achieves even lower levels of reflected light. The angles on the fiber endface help converge the incoming light waves, which results in a lower reflectance and crosstalk. SC APC connectors are suitable for high-power applications, such as broadband networks, optical transport networks, and video transmission.

In summary, SC APC connectors are better suited for applications that require high power applications, while SC UPC connectors are more suitable for low-power applications like data communication in local area networks. Both connectors provide reliable and easy-to-use solutions for fiber optic connections and have proven highly effective in ensuring high-quality communications.

In conclusion, understanding the difference between SC APC and SC UPC connectors is essential for choosing the right fiber optic connector that meets the specific requirements of any given application. Despite their differences, both connectors are of high quality and have proven to be essential tools in building today's modern communication networks.