Loose RJ45 Connectors

[ali987]

I have two separate PCB boards communicating data with each other. I soldered a female RJ45 PCB mount connector (unshielded) on each board so they can be connected by a standard ethernet cable. The problem is that the connection is lost whenever I wiggle the cable. Connectors and cables are brand new from digikey an they are not among the cheapest items. Any experience or advice on solving this would be highly appreciated.

 

[KlausST]

Hi,

there could be many issues.

If it would be my task I´d surely spend some time to find out what causes the problem.
* Replacing the cable
* wiggeling one side only .. then the other only
* using heat gun / cold spray
* use lense / microscope to inspect cable, connectors, solder joints, PCB traces

....
We can´t really to something for you, sinc you provide no information we can validate. (Connector type and brand, cable, photos of the whole setup, or solder or contact details...
Links to datasheets..

We even don´t have a proof that there is a problem at all.

Klaus

 

[barry]

if the connectors and cable are new and not defective, i would investigate the pcb soldering of the connector