Fiber optic patch cord is a fiber optic cable assembled connectors at both ends that allow it to be rapidly and conveniently connected to CATV, an optical switch or other telecommunication equipment. It is used to attach one device to another for signal routing. 

Features:
Low ion loss
High return loss
Good repeatability and stability
Good temperature stability
Excellent mechanical endurance

Application:
Optical fiber communication systems
Fiber access network
Fiber optic data transmission
CATV, LAN 
Test equipment etc.