OPERATOR INTERFACE, NB SERIES, 24 VDC -/+15%, 1024 X 600 PIXEL RESOLUTION, 14 WATT, TFT LCD, TOUCH SCREEN, 65536 COLOURS, 128 MB INTERNAL MEMORY, 8 WATT, 2 RS-232C PORT, RS-422/485/ETHERNET PORT, 0 TO 50 DEGREE C, IP65