Do Magnetic Relay Connection (X4); Do Open Collector (X4) - Motorola MOSCAD-M Owner's Manual

DO Magnetic Relay connection (x4)

Four magnetically latched Digital Outputs are connected to TB2. They can drive up to 2A.
Figure 12 shows how the DOs are to be connected.
Figure 12
Main Board Magnetically Latched Digital Output I/O Connection

DO Open Collector (x4)

Four open collector Digital Outputs are connected to TB2/TB3. The DOs can sink a current of
up to 500mA. They are divided into two groups of two, each with a common ground. Figure
13 shows how the DOs are to be connected
Figure 13
Main Board Open Collector Digital Output I/O Connection
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The MOSCAD-M Unit