Datasheet
Relay connectors :
Signal
Description
NOx
Normal Open
NCx
Normal Close
COMx
Common terminal
Open Drains :
Signal
Description
ODx-
Open Drain negative terminal
ODx+ , PWR+
Supply voltage (internally connected)
PWR-
Ground
Using the Adapter with myRIO
*Relays* are single side stable Normal Connected between NC and COM terminals. A logic
“high” will energize the coil and the COM will be shorted to NO.
*Open Drains* connectors are meant to be used with two polarized pins/channel. The OD+
is connected to PWR positive power terminal. The OD- is equipped with transient
suppression diodes to the PWR. Connect open drains power supply(+PWR-) respecting the
polarity. PWR should not exceed 16VDC.
Note:If you need different supplies for different channels, assure suppression diodes to your
supply voltages, especially when use inductive loads.