Siemens 6GK7443-1RX00-0XE0 CP 443-1 RNA communications processor; 1 x 10/100 Mbit/s RJ45 port; ISO; S7, H communication, open communication (send/receive), S7 routing; 2 x 100 Mbit/s RJ45 ports: PRP; ISO; ISO-on-TCP; TCP; UDP S7, H communication, open communication (send/receive), S7 routing; time synchronization; IP access control list; Web diagnostics; SNMPv1.