{HEAD ~ A switch unit} 1 wherein {TAIL ~ 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 said switch module 
wherein
{ HEAD ~ A switch unit } 1 wherein { TAIL ~ 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 said switch module
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH