Monday, June 25, 2012

Console Cable Adapters (Much better than a console cable!)

So, what great idea did I have this time?

Wouldn't it be nice if I could use an adapter with a normal cat 5 cable (something I carry everyday) to connect to cisco and hp switches at work? Why Yes! That would save me lugging around two more cables...

I searched the web, and found this ( but it wasn't really what I was looking for.. I mean, small cables with rj45 connectors and couplers... That's not really slick. I wanted a sweet end result. Something that looked like it was made to be the way I made it.

Enter china...
I ordered a couple modular adapter plugs DB9 -> RJ45... How sweet is that? Figure out which color goes with which wire in a rj45 connector, and then plug them into the db9 connector as you like. You then close it up, and it looks like it was made that way...

I broke out the multimeter and connected to each pin of my normal everyday cat5 cable, and figured out which color went with what...

(P.S. I don't know where the pad of paper came from...)

Cat 5 connector on the modular plug (pins start from left to right with fastener nub down):
Pin 1: Blue 
Pin 2: Orange
Pin 3: Black
Pin 4: Red
Pin 5: Green
Pin 6: Yellow
Pin 7: Brown
Pin 8: White

So then I went and figured out which pins on the rj45 connector connect to which pins of the db9 connector on the two cables I carry around (cisco-fabulous-blue and hp-black).


Cat 5:  1 2 3 4 5 6 7 8

DB9:    8 6 2 5   3 4 7


Cat 5:  1 2 3 4 5 6 7 8

DB9:    8 6 2 1 5 3 4 7

And so then I connected up the wires into the DB9 once for each cable, and produced these puppies.. :-)

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