The pinouts are below.  Some pictures as well.

XLR

===

Pin 1 = Shield ground

Pin 2 = Positive balanced signal

Pin 3 = Negative balanced signal

Mnemonic: XLR = Shield,Live,Return

Looking into the female connector with the locking tag up top

right is #1, top left #2, bottom #3

___ ____

/      v      \

| 2         1 |

\      3      /

\_______/

RJ45

====

Looking into the RJ45 cable end with the locking latch down

pin 3 = Shield ground

pin 4 = Positive balanced signal

Pin 5 = Negative balanced signal

_______________________

|  1   2   3   4   5   6   7   8 |

|                                      |

|                                      |

————–|     |————–

,          ,–|_|–