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In the never-ending attempt to have an organized loom of wires behind my audio equipment, a new question arises.

How short can ethernet cables be and function properly?  I have not seen what is generally considered audiophile cable manufactures that have short, say 12" cables. I do have .5 meter but still a bit to long. 

Do any of you use short cables or just do your best to organize?

 

Thanks

 

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~~ 3.33333333e-7 meters

 

don't worry about it


"The overwhelming majority [of audiophiles] have very little knowledge, if any, about the most basic principles and operating characteristics of audio equipment. They often base their purchasing decisions on hearsay, and the preaching of media sages. Unfortunately, because of commercial considerations, much information is rooted in increasing revenue, not in assisting the audiophile. It seems as if the only requirements for becoming an "authority" in the world of audio is a keyboard."

-- Bruce Rozenblit of Transcendent Sound

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33 minutes ago, brad225 said:

In the never-ending attempt to have an organized loom of wires behind my audio equipment, a new question arises.

How short can ethernet cables be and function properly?  I have not seen what is generally considered audiophile cable manufactures that have short, say 12" cables. I do have .5 meter but still a bit to long. 

Do any of you use short cables or just do your best to organize?

 

Thanks

 

 

Ethernet max length is 100 feet before using a switch.


Current:  JRiver 24 on Win 10 PC (AMD Ryzen 5 2600 with 32 GB RAM) or Daphile on an I5-2500K with 16 GB RAM

DAC - TEAC UD-501 DAC 

Pre-amp - Audio Research SP-16

Amplification - PS Audio S300

Speakers: Wharfedale Linton Heritage

Cables:Tara Labs and DiMarzio Interconnects

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1 minute ago, One and a half said:

Thought it was 100m ?

 

Sorry 100 meters - you are right :D


Current:  JRiver 24 on Win 10 PC (AMD Ryzen 5 2600 with 32 GB RAM) or Daphile on an I5-2500K with 16 GB RAM

DAC - TEAC UD-501 DAC 

Pre-amp - Audio Research SP-16

Amplification - PS Audio S300

Speakers: Wharfedale Linton Heritage

Cables:Tara Labs and DiMarzio Interconnects

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20 hours ago, One and a half said:

Going back a time now, but recall the minimum length from a switch to a device was 1m from the CAT5 days. 

That was just another audiophile misunderstanding.

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2 hours ago, Speedskater said:

That was just another audiophile misunderstanding.


Fiber connections have minimum cable lengths due to level requirements on received signals.[36] Fiber ports designed for long-haul wavelengths require a signal attenuator if used within a building.


10BASE2 installations, running on RG-58 coaxial cable, require a minimum of 0.5 m between stations tapped into the network cable, this is to minimize reflections.[37]

 

10BASE-T, 100BASE-T, and 1000BASE-T installations running on twisted pair cable use a star topology. No minimum cable length is required for these networks.
 

From Wikipedia topic, Ethernet.


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23 hours ago, botrytis said:

 

Ethernet max length is 100 feet before using a switch.

It's 328 feet or 100 meters.

 

Modern PHY (like past 15 years) can push 380 feet before BER starts showing up.

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20 hours ago, mansr said:

There is no (practical) lower limit to the length. I use a few that are about 6 inches long.

Heck may as well hard wire the two devices together 😉

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17 minutes ago, One and a half said:

10BASE2 installations, running on RG-58 coaxial cable, require a minimum of 0.5 m between stations tapped into the network cable, this is to minimize reflections.

See that's how audiophile misunderstandings get started. They take information out of context and mis-apply it.

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On 11/25/2019 at 7:43 AM, One and a half said:

Going back a time now, but recall the minimum length from a switch to a device was 1m from the CAT5 days. 
Maybe it was a limitation on what was behind the RJ45 in the switch?


Depending on the equipment being connected shorter lengths may work. The 1m rule is to make sure there is enough capacitance for the PHY tranceivers to work correctly. Some switches add capacitors to make sure shorter lengths will work. Some do not. 

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31 minutes ago, HumanMedia said:

Depending on the equipment being connected shorter lengths may work. The 1m rule is to make sure there is enough capacitance for the PHY tranceivers to work correctly. Some switches add capacitors to make sure shorter lengths will work. Some do not. 

What is your source for this? I can't find a mention of a minimum load capacitance in the Ethernet spec or in any of a few phy datasheets I checked.

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On 11/25/2019 at 7:45 PM, One and a half said:


Fiber connections have minimum cable lengths due to level requirements on received signals.[36] Fiber ports designed for long-haul wavelengths require a signal attenuator if used within a building.


10BASE2 installations, running on RG-58 coaxial cable, require a minimum of 0.5 m between stations tapped into the network cable, this is to minimize reflections.[37]

 

10BASE-T, 100BASE-T, and 1000BASE-T installations running on twisted pair cable use a star topology. No minimum cable length is required for these networks.
 

From Wikipedia topic, Ethernet.

So no minimum cable length then... were you making a point? as no one has used RG-58 for years, if ever in the home and as to long haul fibre!!! if so it was pointless. LOL

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On 11/26/2019 at 10:50 PM, Samuel T Cogley said:

There is no minimum length in the 802.3 spec that I can find.  But I did find this 😎

 

image.png.73cd6c52d906c2d5a36c9a65f9983d48.png

I was going to say as long as you can wire it up, that is just silly though...

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41 minutes ago, marce said:

I was going to say as long as you can wire it up, that is just silly though...

I'm sure Uptone will be selling one before long. If their USB lineup is any indication.

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