The connections are made using two sided contactable bent off four pole plugs or plug connections 280 for the first drive 210 and a one sided contactable four pole plug or {HEAD ~ plug connection} 292 for {TAIL ~ the second drive} 211 
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The connections are made using two sided contactable bent off four pole plugs or plug connections 280 for the first drive 210 and a one sided contactable four pole plug or { HEAD ~ plug connection } 292 for { TAIL ~ the second drive } 211
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH