The GN-SCSC-SM-OS2-(01)D is a fiber optic patch cord with optical SC connectors on both sides, used to connect one device to another for signal transmission.
The SC-SC patch cord can be used for single-mode (OS1 or OS2) optical fiber systems.
SC means Subscriber Connector, a general purpose push/pull type connector. It is a square, snap-on connector that locks into place with a simple movement.
Incorrect connection of fiber is prevented by a special key.