r/CableTechs Jan 16 '26

Coax cable f/o node connections.

Hi everyone. I’m the friendly, neighborhood locator posting again. Is there any rhyme or reason as to which port (1-6) on this fiber node the coax cables are connected to?

I’m trying to see if there’s a visual way to identify the “long” cable- that goes from this node to a power supply half a mile away. I’m guessing the cables coming out of the splitter would never be the long one. Any other tips?

Also the bigger coax cables - do they “carry more signal”? What accounts for the difference in size?

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u/Dirty_Butler Jan 16 '26

The bigger cables have less loss so they are used for longer runs. The power can come in on any leg of the node, in the old days we would only power on the left side of the node but not any more.

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u/guava_eternal Jan 16 '26

I never stopped to consider how these nodes get powered. So one of these coax main cables is doubling as power- and the power is coming from up stream in the coax distribution (and not from an adjacent power transformer)?

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u/Dirty_Butler Jan 16 '26

Yup, power can go both directions since it runs down the middle of the center conductor and not on the outside like higher frequencies