CC-PCF901 | Honeywell | Control Firewall ModuleDescription The Honeywell CC PCF901 (part number 51405047 175) is a control firewall module designed to enhance network security and segmentation within Experion Series C distributed control systems. Specifications Model: CC PCF901 Part Number: 51405047 175 System Compatibility: Honeywell Experion Series C I O Mark II Ports: 8 10 100 Mbps Ethernet ports 1 uplink port Functionality: Network segmentation Firewall filtering Real time traffic monitoring