Advantech ADAM-5511 Manual page 88

Open
Collector
Power Ground
There are 16-point digital input and 16-point digital output modules in
the ADAM-5000 series. The addition of these solid state digital I/O
devices allows these modules to control or monitor the interfaces
between high power DC or AC lines and TTL logic signals. A com-
mand from the host converts these signals into logic levels suitable for
the solid-state I/O devices.
+ Vss
R2 limit current to 100 mA
Power Ground
- Vss