I think this is an okay spot for the thread - it deals with cables, preamps/ADCs, and recording devices so doesn't fit perfectly in any of the others, either.
The UA5 has both a S/PDIF 75-ohm coax output using RCA connector and a S/PDIF optical output using toslink connector.
You could connect your M1 one of two ways:
[1] UA5 optical output > optical / 7-pin cable > M1
[2] UA5 coax output > coax / 7-pin cable > M1
To connect a JB3 to the UA5:
[1] UA5 optical output > toslink / mini optical cable > JB3
Check the Archival Info section for threads related to optical cable options and part numbers / retailers for the specific Sony 7-pin cables and/or third party cables.
Mics may be run physically into the UA5 two different ways:
[1] Mics XLR out > UA5 XLR-in
[2] Mics RCA out > UA5 RCA-in
Option [1] gives you the option of running phantom power for your mics, or not. Option [2] will not provide phantom power to the mics and probably won't sound as good as running the XLR-ins due to differences in the analog input stage.
Yes, USB would be used for running to a laptop.
From there do i run the preamp's optical out to the M1's 7 pin optical in?
And just a nitpick: for clarification, preamps are analog devices. You would be running the
ADCs optical or coax output to your recording device.