Will Magnets interfere with Electric Signal?

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SUMMARY

The discussion centers on the potential interference of magnets, specifically Iridium magnets, with electrical signals transmitted through an 8P8C modular jack (RJ45). It concludes definitively that a static magnetic field will not affect the electrical signals in either Ethernet or Firewire cables, even with the Firewire's dual shielding. However, caution is advised regarding the proximity of strong magnets to hard drives, as they may pose a risk to data integrity.

PREREQUISITES
  • Understanding of 8P8C modular jacks (RJ45)
  • Basic knowledge of Ethernet and Firewire signal transmission
  • Familiarity with magnetic fields and their effects on electronic devices
  • Awareness of data integrity concerns related to hard drives
NEXT STEPS
  • Research the specifications and standards of Firewire signal transmission
  • Explore the effects of magnetic fields on various types of cables
  • Learn about dual shielding in cables and its effectiveness
  • Investigate best practices for protecting hard drives from magnetic interference
USEFUL FOR

This discussion is beneficial for electrical engineers, network technicians, and anyone involved in cable management or signal integrity, particularly those working with Ethernet and Firewire technologies.

resjsu
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I have a standard 8P8C modular jack (RJ45) and the small clip has broken off. Instead of cutting it off and re-wiring a new one I was interested to find out if I could attach magnets (how I will attach them is not important at this time) to the connector and have the magnets provide the security.

But will magnets, such as Iridium magnets, spaced within 5mm of either side of the RJ45 jack cause any interference?

I wanted to apply this to an ethernet cable running an ethernet signal and one running a Firewire signal. I am more interested in the one running a Firewire signal because I know the standards are a little more strict. However, the Firewire cable has dual shielding.

Any ideas/comments/suggestions would be a great help.

Thanks in advance!
 
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A static magnetic field will have no effect on the electrical signals going through your cable, regardless of shielding.

On the other hand, magnets might have an effect on your hard drive, and I personally would not put strong magnets anywhere near my own computer.

- Warren
 
So no interference at all? Awesome, thank you.
 

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