SBCSU/SCSU shows the LCOSV assigned to the station, usually it's using LCOSV1, it may be using LCSOV2 if you are using COS switchover, but probably not. If you find the LCOSV value in the left column and read across to the right, the Xs are the AUTH values assigned to that LCOSV, you can read the AUTH value from the top row, the values do not have to be contiguous.
If the station makes a network call, there are AUTH values in LDPLN and LDAT. The LCOSV must contain those AUTH values to be allowed to make the call. The AUTH value is explicit, it must have that value.
Example. To dial a PSTN number, LDPLN contains AUTH 4. Your station is LCOSV 11. LCOSV 11 contains AUTHs 1,2,3 and 5. It cannot dial that PSTN number. LCOSV 4, which contains AUTHs 1 and 4, would be able to dial the number.