光纤接口

optical interface

light / ray / CL:道[dao4] / bright / only / merely / to use up

optical fiber / fiber optics

boatman's tow-rope

fine / delicate / minute

to receive / to answer (the phone) / to meet or welcome sb / to connect / to catch / to join / to extend / to take one's turn on duty / to take over for sb

interface / port / connector

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls