SIEMENS 6GK7 543‑1AX00‑0XE0 Brand New S7 1500 CP Modules

CP 1543‑1 – Gigabit Industrial Ethernet communication co‑processor. Features integrated firewall (SPI), VPN/IPsec, encrypted FTP(S)/E‑mail (SMTP), SNMPv3, NTP time sync, IPv4/IPv6 support. Offloads communication from CPU, enabling up to ~118 TCP/UDP/S7 connections. Ideal for secure cell/network separation and cloud-ready setups.