A.False

B.True

A.Sun protection

B.Non-slip

C.Flood prevention

D.Anti-foot

A.When the cable is laid, it should be straightened out without bending

B.The power cable and ground wire should be smooth at the turn.

C.The bending radius of the fiber placement should not exceed 50mm

D.The wire diameter of the power cable and ground wire of the equipment should meet the power distribution requirements of the equipment.

A.0 in 3 out

B.0 in 4 out

C.0 in 2 out

D.4 in 4 out

A.Upstream fiber

B.Protective ground wire

C.DC power cord

D.Downstream fiber