A switch unit 1 wherein {HEAD ~ said switch module} has a plurality of contact pairs and a corresponding plurality of rockers for actuating electrical circuit between said contact pairs, said cover having a plurality of rocker actuating elements in a coded arrangement corresponding to a specific identification for {TAIL ~ said switch module} 
A switch unit 1 wherein { HEAD ~ said switch module } has a plurality of contact pairs and a corresponding plurality of rockers for actuating electrical circuit between said contact pairs , said cover having a plurality of rocker actuating elements in a coded arrangement corresponding to a specific identification for { TAIL ~ said switch module }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL