What is the difference between SC APC and SC UPC?

Generally speaking, SC APC connector and SC UPC connector are distinct from each other based on fiber end face. SC APC connector is polished with an 8-degree angle, while SC UPC connector is polished with no angle, which causes difference in light reflection.

What is SC UPC port?

It is a hybrid adapter, the male side is a SC/UPC connector, the female side is a SC/APC which has a 8 degree angle. This is a single mode adapter. You can plug in SC/APC connector on the female side, which is then converted to SC UPC without angle, usually used for your SFP transceiver port.

What does APC stand for in fiber?

APC Fiber Connector APC refers to Angled Physical Connect, the ferrule endface radius of which is polished at an 8°angel, minimizing the back reflection as a result. Since adding the angled endface, the reflected light will leak out into the cladding instead of staying in the fiber core.

What does SC stand for in SC connector?

SC connectors: stick and click SC, abbreviated for Subscriber Connector, has also been referred to as Square Connector or Standard Connector. It’s a popular fiber-optic connector due to its low-cost, durability and simple installation for both point-to-point and passive optical networking.

Which is better APC or UPC?

There is no doubt that the optical performance of APC connectors is better than UPC connectors. In the current market, the APC connectors are widely used in applications such as FTTx, passive optical network (PON) and wavelength-division multiplexing (WDM) that are more sensitive to return loss.

What is LC UPC fiber?

Beyondtech’s single mode LC/UPC epoxy-polish connectors are specially designed to provide low insertion loss and back reflection, along with high precision and mechanical stability. Our male LC UPC connectors have 2.5mm pre-polished zirconia ceramic ferrules, which makes them able to provide superior performance.

What is an APC connector?

APC Connector is a type of fiber connector that minimizes backreflection due to a 5° to 15° angle-polish applied to end faces. Like illustrated in the following picture. Because of the angle, the reflected light does not stay in the fiber core but instead leaks out into the cladding.

How can you tell the difference between an ST connector and an SC connector?

SC connectors are typically used in data communication, CATV, and telephony environments. ST stands for straight tip, a high-performance fiber-optic connector with round ceramic ferrules and bayonet locking features. ST connectors are more common than SC connectors.

What are SC connectors?

SC stands for subscriber connector and is a standard-duplex fiber-optic connector with a square molded plastic body and push-pull locking features. SC connectors are typically used in data communication, CATV, and telephony environments.

How do you tell an APC connector?

With a UPC connector, the fiber endface is a slightly rounded surface. In contrast, the endface of an APC connector is slanted 8 degrees. The slight angle causes reflected light to be absorbed into the cladding, thereby reducing back reflections in the fiber core and offering superior return loss performance.