This figure shows an existing SL8500 configuration with a single ACS (ACS0) and three pass-thru ports.
Right:
LSM 0,0
LSM 0,1
LSM 0,2
LSM 0,3
To the left:
LSM 0,4
LSM 0,5
LSM 0,6
LSM 0,7
To the left:
LSM 1,0
LSM 1,1
LSM 1,2
LSM 1,3
To the left:
LSM 1,4
LSM 1,5
LSM 1,6
LSM 1,7