TRANSMITTER OTHER TYPE; COMPONENT: LCD DISPLAY; * DISPLAY PR4501: DISPLAY AND LCD WITH 4 LINES; LINE 1 SHOWS THE INPUT SIGNAL, LINE 2 SHOWS THE UNITS, LINE 3 SHOWS THE ANALOG OUTPUT AND LINE 4 SHOWS THE COMMUNICATION STATUS OF THE RELAYS. APPLICATION: – COMMUNICATIONS INTERFACE FOR MODIFYING OPERATIONAL PARAMETERS IS ON 4116. – CAN BE MOVED FROM ONE 4116 MODULE TO ANOTHER AND DOWNLOAD THE CONFIGURATION FROM THE FIRST TRANSMITTER TO THE FOLLOWING ONES. – FIXED DISPLAY FOR DISPLAYING PROCESS INFORMATION AND STATUSES; MANUFACTURER 1: PR ELECTRONICS; N-PART 1: 4501