Deployed Transceiver for Additional Switch in IDF

A network technician has been asked to install an additional switch in an IDF, but all of the single-mode fiber is in use between the IDF and MDF.

The technician has deployed new transceivers that allow for the use of a single fiber stand, providing the additional fiber needed for the new switch.

Which of the following has the technician deployed?

A.

1000BaseLX SFP

B.

Duplex GBIC

C.

Duplex SFP+

D.

Bidirectional SFP.

D.

The technician has deployed a bidirectional SFP (Small Form-factor Pluggable) module.

Single-mode fiber optic cables typically use two strands of fiber: one for transmitting data and the other for receiving data. However, in this scenario, all the single-mode fibers are already in use, meaning that there is no additional fiber strand available for the new switch.

To overcome this challenge, the technician deployed a bidirectional SFP module. This module enables data transmission and reception on a single fiber strand by using two different wavelengths of light. Specifically, the bidirectional SFP module sends and receives data using two different wavelengths of light, one for transmitting and the other for receiving data.

Therefore, the bidirectional SFP module allows for the use of a single fiber strand, providing the additional fiber needed for the new switch without the need for additional cabling.

Option A, 1000BaseLX SFP, is a single-mode fiber optic transceiver that supports transmission distances of up to 10 km. It uses a single fiber strand for both transmitting and receiving data.

Option B, Duplex GBIC, is a Gigabit Interface Converter that uses a duplex fiber cable, which consists of two strands of fiber.

Option C, Duplex SFP+, is a newer version of SFP that also uses duplex fiber cables.

Therefore, the correct answer is D, bidirectional SFP.