A.One end is connected to the main control board, and the other end is connected to the ODF frame.

B.Downstream adopts SC type fiber

C.When the fiber is laid at the inflection point, pay attention to the need to bend, cannot be folded into 90 degrees

D.Fiber needs to be tied

A.False

B.True

A.DSLAM

B.DSL terminal

C.OLT

D.MSAN

A.Damaged power supply components must be replaced in time.

B.Do not place the power cord on the ground.

C.Do not overload the power supply.

A.In order to prevent being robbed and harmed by dangerous animals, generally more than two people

B.If dining inconvenience, you should have enough food.

C.Wear non-slip flat shoes and tight clothing which are suitable for field work

D.Can't work too late