National Instruments NI 9421

Table 1. LED Indications
LED State Indication
Illuminated Channel is on
Not illuminated Channel is off
High-Vibration Application Connections
If your application is subject to high vibration, NI recommends
that you follow these guidelines to protect connections to the
NI 9421:
• Use ferrules to terminate wires to the detachable connector.
• Use the NI 9927 backshell kit with the NI 9421 with screw
terminal or the NI 9981 backshell kit with the NI 9421 with
spring terminal.
NI 9421 Getting Started Guide | © National Instruments | 15