The Ballard MIL-STD-1553 does not appear in NI MAX. You need to use BTIXMLEdit.exe to find the board.

When you identify the Card# and Core#, you can use them to select the channel in the LabVIEW program.
To use the LabVIEW sample program for MIL-STD-1553, you need to install the Astronics Ballard Avionics Driver from the NI Package Manager.

You can find sample program under C:\Program Files\NI\LVAddons\ballardinstr64. For exmaple, for version 1.6, you can find the sample in following folder:
C:\Program Files\NI\LVAddons\ballardinstr64\1.6.0.3\examples\Astronics Ballard Technology\BTI1553Lib
Here, for example, when I test with Example - MIL 1553B BC-RT Loopback with a small modification, I can select the card# and core# by the Initialize By Card Number and Core Number.vi as below.
