There are 2 ways you could do this:
Method 1 (with unbalanced cable):
TS tip to XLR pin 2
TS sleeve (cable shield) to XLR pin 3
XLR pin 1 not connected
I use this method for doing coax BNC to XLR for testing gear as the input signal
Method 2 (with balanced cable)
TS tip (cable +) to XLR pin 2
(cable -) to XLR pin 3
(cable shield) to XLR pin 1 (so basically wire the XLR the normal way)
Connect both (cable -) and (cable shield) at TS end to sleeve
Look here page 21 http://www.symetrix.co/wp-content/up...2/88192_ug.pdf
The important thing is pin 2 and pin 3 of the XLR need to be signal connections, pin 1 and grounding/shielding can vary depending on the needs.
Also balanced out to unbalanced in is different so don't use this method.