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Example of the APC 8°Mating Core Face
The SC/UPC connector looks very similar but is the incorrect connector type when it comes to analog fiber
DAS deployment, it is generally identified by a blue square body and uses an ultra-physical contact (UPC) of
0°.
WARNING: This type of connector must not be used anywhere within the fiber plant network, the insertion
loss (reflectance) is too high and will disrupt the communications between fiber master and fiber remote
equipment and preventing the system from being commissioned.
Example of a SC/APC Connector
Example of the UPC 0°Mating Core Face
Avoiding Fiber Contamination and Creating Reliable Fiber Connections:
There are 3 basic principles that are critical to achieving an efficient and reliable fiber optic link:
• Optimal Core Alignment
• Physical Contact
• Clean Connector Interface