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d1stewart

Is the VDI cable wired just like standard Ethernet?

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That's the question: Is the VDI cable simply a ruggedized Ethernet cable with standard Ethernet wiring, or is the wiring different? Do some of the wires go to a different place in the RJ45 connector?

 

I can make an ethernet cable easily. I have a VDI from Line 6, but it's 25', which is a bit long for my little room studio; I'd like to use a 10'er or something like that.

 

If it's different does anyone have the wiring diagrammed?

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It's a standard cable; the wiring is the same.

 

Make sure you add the protective housing on the cable ends. Don't just use the RJ-45 connectors. Over time, movement of these loose ends will cause damage to the VDI jacks on the connected equipment.

 

Or, there's this option:

http://line6.com/support/topic/958-more-more-added-new-colors-cool-vdi-cable/

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There are several sources of good quality VDI cables for Variax.  One poster here sells them.  Get yourself a good one.

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just make sure not to use a crossover cable! the cable needs to be entirely 568A or 568B not both.

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Make sure it's the VDI cable and not everyday CAT5.

VDI has the XLR casing. You need that so that the connector

doesn't wiggle and cause intermittent contacts.

 

Seen a number of connectors in the past with both old Variax

and JTV, where someone used the cheaper standard CAT5

Ethernet without the XLR casing. It resulted in bent pins, intermittent

contacts and Volt transients that damaged the electronics.

 

Always use the VDI version of the cable, and not the everyday CAT5

Ethernet stuff,... please.

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agree... just talking cable specs cause you can build your own VDI.

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Does the raw/bulk cable for the VDI cable have to be Cat5 or Cat6 cable, or will any high-quality 8 conductor cable work?  Do the internal cable wires need to be twisted pairs?  I'd like to build my own cables but don't want to use the usual Cat5/6 cable as it all too stiff.  I can't find a supplier for the cable like Line 6 uses for this.  Any ideas??

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CAT5 or CAT5e,... no CAT6 or CAT7.

 

It's not about the highest bandwidth or bit rate, it's about the bandwidth and bit rate for the application you are using.

So stick to the CAT5 or CAT5e, or you may find yourself with drop outs and artifacts because of being so far outside

the operations range of the device. Like trying to run a Formula-1 racer on a Go-Cart track,... it doesn't work.

 

I have this chat with Steve Lampen of Belden Cable from time to time, since this a subject of discussion here. And he

is the King of Cables who has books out on this stuff. And he knows it well.

 

The right cable for the right application, for the operating parameters of the device.

 

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