2608
From Sensoray Technical Wiki
Model 2608 is an analog I/O module that connects to Ethernet through a 2601 communication module. It has sixteen differential analog inputs and 0, 4 or 8 analog outputs. It is a member of the 2600 series of smart I/O modules.
Common mode voltage range
The CMV range for analog inputs is -10 to +10V for both the 100mV and 10V input ranges.