National Instruments NI 9411 - Page 11

Note You must use 2-wire ferrules to create a secure
connection when connecting more than one wire to a
single terminal on the NI 9411 screw-terminal
connector.
NI 9411 Signals
Table 1. DSUB Connector Signal Descriptions
Signal Description
COM Common reference connection to isolated ground
DIa and DIb Digital input signal connections
Supply (+5 Vout) 5 V power output connection for external devices
Table 2. Screw-Terminal Connector Signal Descriptions
Signal Description
COM Common reference connection to isolated ground
Vsup Voltage supply connection
NI 9411 Getting Started Guide | © National Instruments | 11