A video of this procedure is available at YouTube: https://www.youtube.com/playlist?list=PLYV5R7hVcs- 
AU3iY3F7lq3qfqr5caGbIu
.
Procedure
Step 1.  (Optional) If you are installing an intrusion switch option, assemble the intrusion switch. Insert the 
intrusion switch into the bracket until it click into place. 
Figure 80. Assembling the intrusion switch
Step 2.  Install the intrusion switch. 
a. 
Align the intrusion switch to the slot on the chassis.
b. 
Fasten the screw to secure the intrusion switch to the chassis. 
Figure 81. Installing the intrusion switch
Step 3.  Connect the intrusion switch cable to the system board, see “Internal cable routing” on page 19.
After you finish 
102 ThinkSystem ST50 V2 Maintenance Manual