Fiber Patch Panel Connections

A technician is replacing a switch at a branch office and discovers the existing backbone cable does not fit in the new switch.

The fiber patch panel has circular connections.

The new switch has a transceiver that accepts a smaller square adapter of two strands.

Which of the following patch cables would the technician need to complete the installation?

A.

LC to SC

B.

SC to ST

C.

LC to ST

D.

ST to ST

E.

SC to SC.

C.

The technician needs a patch cable that can connect the circular connectors on the fiber patch panel to the transceiver's smaller square adapter, which has two strands. Therefore, the correct answer is option C, LC to ST.

LC and ST are both types of fiber optic connector types that are commonly used in networking. LC connectors are small, square-shaped connectors that are commonly used for single-mode fiber connections, while ST connectors are circular and are often used for multimode fiber connections.

To connect the two different connector types, the technician would need an LC to ST patch cable. This cable would have an LC connector on one end, which would connect to the transceiver's smaller square adapter, and an ST connector on the other end, which would connect to the circular connector on the fiber patch panel.

Option A, LC to SC, would not be correct because SC connectors are also square-shaped, like LC connectors, and therefore would not fit the circular connection on the fiber patch panel.

Option B, SC to ST, would not be correct because the transceiver on the new switch has a smaller square adapter that does not accept SC connectors.

Option D, ST to ST, would not be correct because the new switch has a transceiver with a square adapter that requires a different connector type.

Option E, SC to SC, would not be correct for the same reasons as option A.