[GreenKeys] Color Codes??

[w8au at sssnet.com]

At 08:38 PM 08/23/2004, Doug Alderdice wrote:
>Since it's for 48 VDC could it be something to do with the telephone 
>standard of a positive ground?  Seems like I just read something the other 
>day about this but can't recall where I saw it to look it up.  I think the 
>explanation was that black is ground, regardless of polarity.
>
>Any former Telco folks want to confirm or deny this?
Right, Doug:

Red is hot and Black is cold....   And all microwave systems, whether used 
by Telco or any other organization,
use positive ground, whether 24V or 48V primary DC power.

It may be confusing at first, but after your indoctrination to Telco 
principles (the first user of terrestrial microwave)
you never forget it.

Kinda like the old English cars..... I had an MG TF (1954) that really 
taxed my mobile installation ability with it's
positive ground...   :-)

Perry   w8au