Cheers, some additional info. The manual isn't completely clear for the alarm connectors but I would read it as it can handle 30V at 100mA:

Click image for larger version.  Name: alm_spec.png  Views: 279  Size: 10.1 KB  ID: 11934

The relay coil requires 24V @ 20mA to activate.

I could use the Leadshine circuit but that would have it running at the 5V the BOB supplies and I was hoping to get the voltage a bit higher to help avoid interference.