Could you point how to check if a internet modem/ instalation is using Optical Fiber in oposition to a coaxial cable?

Hi Experts

Could you point how to check if an internet modem/ instalation is using Optical Fiber in oposition to a coaxial cable?

I means in hardware characteristics and speeds.

Thanks in advance
Eduardo FuerteDeveloper and AnalystAsked:
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David Johnson, CD, MVPOwnerCommented:
optical cable is more immune to electromagnetic noise and has the capability of a higher bandwidth than cable. In my docsis modem I am using 12 channels for download and 3 for upload. Fibre would only be one channel up and one down.

With cable as the speeds go up the more channels are required as each channel has a fixed amount of bandwidth.  enabling/disabling channels is one way of the isp to limit your speeds
Eduardo FuerteDeveloper and AnalystAuthor Commented:

But at this time I need the phisical - visual - characteristics of each one to be sure I'm receiving the correct devices.... to have the correct contracted services.

A site diagnosys to evidence what kind of connection is running also... if possible.
David Johnson, CD, MVPOwnerCommented:
just look at the connection.. cable and fibre are totally different. one uses RG59 cable and the other uses fibre optic cable   (there will be 2 cables for fiber optic one for send and one for recieve)

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Eduardo FuerteDeveloper and AnalystAuthor Commented:
Thank you.
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