When controlled by {TAIL ~ the CPU line} 31 would actuate switches 61 to 68 as relays by {HEAD ~ cable} 31 
When controlled by { TAIL ~ the CPU line } 31 would actuate switches 61 to 68 as relays by { HEAD ~ cable } 31
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH