Ethernet cable (Was: Sun3 valuations?)

[Bill Gunshannon]

If you want a real hoot try reading what

<https://books.google.com/books?id=tmbgBwAAQBAJ&pg=PA212&lpg=PA212&dq=what+was+the+purpose+of+the+black+bands+on+ethernet+cables?&source=bl&ots=DV53aRJc9P&sig=3GFr8Hz_uQjFELOrnXk8x8KjKVM&hl=en&sa=X&ved=0ahUKEwj-i_j_5u7YAhVD34MKHeSQC-wQ6AEIWzAG>
"A System Administrator’s Guide to Sun Workstations"<https://books.google.com/books?id=tmbgBwAAQBAJ&pg=PA212&lpg=PA212&dq=what+was+the+purpose+of+the+black+bands+on+ethernet+cables?&source=bl&ots=DV53aRJc9P&sig=3GFr8Hz_uQjFELOrnXk8x8KjKVM&hl=en&sa=X&ved=0ahUKEwj-i_j_5u7YAhVD34MKHeSQC-wQ6AEIWzAG>

has to say about it.  Google has it available for reading.

bill

________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Grant Taylor via cctalk <cctalk at classiccmp.org>
Sent: Tuesday, January 23, 2018 2:13 PM
To: cctalk at classiccmp.org
Subject: Re: Ethernet cable (Was: Sun3 valuations?)

On 01/23/2018 12:09 PM, Bill Gunshannon via cctalk wrote:
> "Transceivers should be installed only at precise 2.5-metre
> intervals. This distance was chosen to not correspond to the wavelength
> of the signal; this ensures that the reflections from multiple taps are
> not in phase. These suitable points are marked
>  on the cable with black bands."
>
> It cites "IEEE Standard 802.3<https://en.wikipedia.org/wiki/802.3>-1985.
> IEEE<https://en.wikipedia.org/wiki/IEEE>. p. 121."

Thank you for correcting ~> educating me.

#learnSomethingEveryDay



--
Grant. . . .
unix || die