NI USB-9421 User Guide and Specifications 8 ni.com
3. Align the I/O module with the carrier, as shown in Figure4.
Figure 4. Module Installation
4. Squeeze the latches and insert the NI 9421 module into the
NIU SB-9162 carrier.
5. Press firmly on the connector side of the NI 9421 module until the
latches lock the module into place, as shown in Figure5.
Figure 5. Locking Module into Place
1 High Voltage Screw Terminal Backshell
1