Siemens 6AG1541-1AB00-7AB0 SIPLUS S7-1500 CM PTP RS422/485 -40 ... +70 DEGREES C WITH CONFORMASL COATING BASED ON 6ES7541-1AB00-0AB0 . COMMUNICATION MODUL FOR SERIAL CONNECTION RS422, RS485, FREEPORT, 3964(R), USS, MODBUS RTU MASTER, SLAVE, 115200 KBIT/S, 15-PIN SUB-D FEMALE CONNECTOR