I am trying to do performance testing for this transformer next to the RJ45 to determine whether it is good or not. i do not have much knowledge on the networking side of electronics so any tips or tricks will help, i have a DMM, LCR, and O-scope for measuring equipment! We have multiple transformer brands so please disregard the brand of component, i just need a general answer

 

I am trying to do performance testing for this transformer next to the RJ45 to determine whether it is good or not. i do not have much knowledge on the networking side of electronics so any tips or tricks will help, i have a DMM, LCR, and O-scope for measuring equipment! We have multiple transformer brands so please disregard the brand of component, i just need a general answer

I suggest taking it out of the circuit and using an ohm meter to make sure it is neither shorted nor open.

 

where on the transformer should i measure across? since there are 16 pins. pin 16 and 14 are the secondary of the transmit side and pins 11 and 9 are the secondary of the receiving side? pins 1, 2 and 3 are the primary of the transmit side and pins 6, 7 and 8 are the primary of the recieving side. we typically deal with the pulse model. here is the data sheet http://media.digikey.com/pdf/Data S...0BASE-T Single Port SMD Magnetics_Rev2008.pdf

 

its the HX1188NL model

 

I would measure between pins 1 and 3, then 1 and 2
then pins 16 and 14
then pins 6 and 8 then 6 and 7
then pins 11 and 9

If there is some resistance, good, if not there is an open circuit.