Week 2

For this week’s blog post, I want to ask a question about some statements I read in chapter 2 of the textbook. The first statement is on page 62 and states: “Although all fiber connectors must be installed in pairs, the ST and SC connectors traditionally have unique ends.”

My question comes from my personal experience with optical connectors.

The first example I have that doesn’t seem to align with the above statement is our home internet is a fiber connection provided by Windstream, and the fiber that comes in the home is a single SC connector.

The second statement is on the same page, immediately following the previous one and states: “The LC and MT-RJ connectors are always duplex, meaning both the send and receive cables are attached.” The counter-example I have for this one is I have a device at home (see image or product page: https://shop.fibercommand.com/products/ethernet-to-fiber-converter) that’s designed to convert ethernet to fiber, and back to ethernet on the other side, so you can transmit ethernet over fiber optic cable. The device only uses a single LC fiber connector on both the TX and RX units, and the LC cables I have are simplex, not duplex. It also seems to be relatively easy to find LC Simplex to LC Simplex patch cables online, so I can’t imagine this is too unique of a situation.

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Since there is not a second fiber connected to the ONT (Optical Network Terminal) for my home network, and the device that converts ethernet to fiber is simplex, not duplex as the book seems to indicate it should be, my question is: Is the information presented in the textbook out of date, or just incorrect?

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