Unlike some other connectors that might require a twist or a specific alignment, the SCP connector is designed for quick, one-handed operation. You just push it in until it clicks, and it's locked. To release it, you simply pull back on the coupling sleeve. If you work with single‑mode optical networks—FTTH, PON, CATV, 5G fronthaul—you will run into the SC/APC fiber optic adapter (sometimes called an SC/APC coupler) almost immediately. This small, inexpensive component is critical for aligning and mating two SC/APC connectors while preserving low. Step 4 i s to affix the fiber to the connector. Follow the manufacturer's instructions to let the epoxy cure.