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RJ-45 key chain and rack

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This Instructable will show you how to make a cool colorful key chain and a rack for storing those key chains out of RJ-45 jacks and plugs.
 
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Step 1: Materials

Picture of Materials
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there are two parts to this instructable.
the first part is the key chain, in order to make the key chain you will need the following:

tools:
1. RJ-45 plug crimper
2. cutting or sleeving tool
3. scissors

materials:
1. 2 pair or more network cable
2. RJ-45 plugs (male)
3. colored rubber protector for RJ-45 plug
4. key ring

the second part is the rack for the key chain. it is optional. in order to make the rack you will need the following:

tools:
1. depending on the type of wall and the type of mount.

materials : 
1. wall mounted box for RJ-45 jacks
2. RJ-45 jacks (female)

Step 2: Key chain step 1 : disassembling and cutting the cable

Picture of key chain step 1 : disassembling and cutting the cable
the standard network cable consist of multiple parts, the only two parts we will be using are the insulation and the wires (4 wires to be exact).

disassemble the cable, identify the parts and keep the parts mentioned above.

the minimum length of cable we can use is 10cm because that gives a little tail popping out of the rubber protection. you may use more if you want a longer tail.

choose the color of wires you want and cut them to the desired length.
Very cool idea for us geeks. Thanks
tqwerty2 years ago
Great idea!
cbatchelor2 years ago
I can see it using scrape cabling, an old patch panel, and free space on a rack for a key box.
Lindie2 years ago
Cool idea!
headdezoysa2 years ago
its looks like WIRELESS KEY!!!!!!!!!
Exocetid2 years ago
You need to sell these. Just a clever and imaginative idea. I could see these in the ThinkGeek catalog!
chamunks2 years ago
THIS ... IS .... Awesome!

How about you find a way to integrate a small LED and wire it a bit logically so that it can also double as a simple Continuity tester?
Mark AJA2 years ago
Many years ago I saw in an electronic magazine using a jack plug as a key.
A different resistor connected across the two pins was used.
If the correct resistance was read and did not change for a second or two then the electronic lock was opened.
The timed delay was used to not open if a variable resister was used.
Brad I.2 years ago
Love it! A great idea for organizing all the server keys I have to keep up with.
przem2 years ago
Nice and geeky idea :-)

I think this can be also used as a simple electronic coded key. By connecting the pairs of pins inside RJ plug in different combinations you can code several different keys. Then some circuit to interpret the code and there you go :-)
dodland2 years ago
Pretty cool idea! I like how one uses snagless cable, especially since they go in your pocket. Could also build a shelf with an old unmanaged 5 or 8-port hub or switch laying around.
crapflinger2 years ago
extra extra points if you make it an ethernet loopback at the same time, then you can take down people's layer 2 switches whenever you like
mrmath2 years ago
Pretty cool idea that could easily be implemented in a data center or some other such place. Extra points for geekiness are scored if used at home. Just a nice idea. Two thumbs up!
harari (author)  mrmath2 years ago
This was actually implemented at a server farm where i used to work (still being used today - should have put my name on it...). i don't use this at home but a couple of ex-co-workers walk around with similar key chains on their house keys (just for show, they don't have the rack at home)
jefersonrod2 years ago
very cool, nice.
matbh2 years ago
what a nice idea!!! i really enjoy it!
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