The FDST 08 terminal features a fixed O-ring sealing system along with an innovative latching mechanism. This combination provides simple, error-free terminal sealing and re-entry. Also, the re-entry feature allows easy access to clean and repair connectors and replace the terminal or terminal tail in the event that either of these are damaged. If you choose field terminated drop termination please refer to 3M's No Polish Singlemode Connectors. If you use the factory terminated drop termination then refer to the factory terminated drops.