{HEAD ~ The HHP} 140 also provides for system wiring testing and {TAIL ~ other troubleshooting functions} 
provides for
{ HEAD ~ The HHP } 140 also provides for system wiring testing and { TAIL ~ other troubleshooting functions }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL