National Instruments CFP-CB-2 用户手册

If your application is subject to high vibration, 

National Instruments recommends installing the NI 9940 
backshell on the spring-terminal connector. You can 
order the NI 9940 from 

ni.com

.

If your application is subject to hazardous 

voltage, you must install the NI 9940 backshell on the 
spring-terminal connector.

Figures 7, 8, and 9 show how to install the NI 9940 connector 
backshell on the cFP-CB-2.

Figure 7.  NI 9940 Connector Backshell and cFP-CB-2

Figure 8.  Closing the NI 9940 Connector Backshell