SIEMENS 6AV3505-1FB12 Description Description SIEMENS OP 5/A2 OPERATOR PANEL 4 LINE DISPLAY, 20 CPL 1 X TTY/V.24 AND 1 X RS422/485/ MPI/PPI/SINEC L2-DP Related products SIEMENS 1FK7063-5AF71-1FG2 SIEMENS 1FK7022-5AK71-1DA0 SIEMENS 1FT5072-0AC01-0-Z SIEMENS 1FK7044-7AF71-1EG0 SIEMENS 1FK7042-5AF71-1EA0 SIEMENS 1FT5066-0AC01-2-Z