A modular electrical component includes a mating keying arrangement complimentary to {TAIL ~ the keying arrangement} in the channel, and thereby only allows the modular electrical component to be insertable into the channel and coupled with a corresponding electrical terminal array in {HEAD ~ a preselected orientation} 
A modular electrical component includes a mating keying arrangement complimentary to { TAIL ~ the keying arrangement } in the channel , and thereby only allows the modular electrical component to be insertable into the channel and coupled with a corresponding electrical terminal array in { HEAD ~ a preselected orientation }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 HEAD