CAT5e/6 shielded cable crimping

Cerulean

[H]F Junkie
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Jul 27, 2006
Messages
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My brother has brought to my attention that many YouTube videos and websites he finds on how to crimp for a shielded CAT5e/6 cable, including the shielded cable that was crimped at his house by the ISP, show that the sleeve is not inserted into the RJ-45 plug.

Example:
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http://www.lanshack.com/installing_cat6e_plugs.aspx

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https://www.dxengineering.com/techarticles/miscinfo/correct-termination-of-shielded-cat5-cables

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upload_2017-1-28_17-14-28.png

Platinum Tools does it right!

I have personally seen the work a local music center has done at the church I go to: on every single CAT5e (unshielded) cable used they had 1" of sleeveless naked wiring from the plug on both ends. This caused major problems for the HDMI-to-CAT setup this cabling was intended for; experienced a major improvement after recrimping them properly with EZ-RJ45 plugs (TVs became rock solid stable on signal, no more in-and-out loss). Why does it seem like every audio-related place / store / person crimps it incorrectly? Is this actually for real and I'm not crazy??
 
i've actually read that EZs aren't recommended for AV, due to leakage out of the ends with the exposed copper...

not sure how truthful that is...
 
It takes some practice to build some technique but even shielded CAT5 isn't difficult to wire up. Watch a Youtube video on the topic, and keep an RJ45 wiring diagram handy. By the time you put on 10-20 ends you should have a good idea of what you are doing (and probably sore fingers).

Take some extra cable and practice -- start with longer wires when you unwind the twisted pairs and re-order them. Once in order using your thumb and index finger bend them back and forth to flatten out the row of wires so that they don't move out of place the second you take pressure off them. While holding the wires, use a wire cutter to trim them down to just long enough to go inside the RJ45 end.

For troubleshooting, if you look closely at the top of an RJ45 end you can see the order of the wires as your first step in determining where the problem might be.
If we are talking about a lot of cable runs, it's probably worth investing in a kit with some handy tools to make your life easier.
 
We need to get something straight first. RJ45 isent an connector, its a cable with an 8P8C connector attached.

The last 2 pictures are wrong!, how should the shielding work when it's not connected?

regarding the jacket touching the connector its very important that the shielding is 360 degrees around the cable, seen from an RF stand.

I done microwave electronics for the last 10 years, plus build fiber/cobber networks to NATO standards.
 
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