Figure 30. Switch connection to input
Output Circuit
The output channels can be connected to a current driven device such as a relay or
LED. They are opto-isolated, open-collector outputs, but require an external
voltage source.
Figure 31. Output Circuit
The maximum rated output current per channel is 60 mA. The output section
uses a low-saturated transistor for output, so it can be connected to a TTL-level
input. The figure above shows an example of a connection to an external LED.
The LED will illuminate when the output bit is 0.