Digital Signal Connections - Advantech MIC-1816 Series User Manual

2.9

Digital Signal Connections

MIC-1816 features 24 digital input/output channels that can be configured as input or
output channels. The digital I/O levels are TTL compatible.
Digital Input Connections
Each digital input channel accepts either dry contact or 0 ~ 5 V wet contact inputs.
DC
Dry contact capability allows the channel to respond to changes in the external circuit
when no voltage exists.
Figure 2.16 Wet and Dry Contacts
Figure 2.17 Digital Input Wet Signal Connection
Figure 2.18 Digital Input Dry Signal Connection
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