The bottom panel is configured to secure {HEAD ~ the printed circuit board}, and the side panel contacts and is mounted to {TAIL ~ the side wall} 
The bottom panel is configured to secure { HEAD ~ the printed circuit board } , and the side panel contacts and is mounted to { TAIL ~ the side wall }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL