It's a simple pass-through module without any electrical isolation. Nothing more than connectors.

The SA10 interface board,10-channel analog I/O block is used to connect 10 analog signals as input/output signals to/from the SIMADYN D boards. The board consists of a 20-pin flat connector X1 for connecting to SIMADYN D boards, and a terminal block with 2*10 screw terminals for the analog inputs/outputs.

Siemens Teleperm XP (T2000)