Experimental Ethernet, XGP, etc.
paulkoning at comcast.net
Tue Jan 23 13:15:38 CST 2018
> On Jan 23, 2018, at 1:35 PM, Mark Kahrs via cctech <cctech at classiccmp.org> wrote:
> A few notes:
> The vampire tap transceiver used RG-8 cable originally. That's before they
> added the lines around the cable and added additional shielding.
The cable spec given in the Ethernet standard doesn't mention additional shielding. It does differ from RG-8 in that it calls for foam dielectric and a higher velocity factor (0.77 rather than 0.66). Another common difference (not required by the spec) is that RG-8 is polyethylene while Ethernet coax is usually PTFE.
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