Firewalls for Industrial Networks
(Existing Customers Only)
Serial Encryptor 
     - Advanced Encryption Standard
     - Hash Authentication
     - Supports Modbus/DNP3 links
     - RS-485/422/232

PortBloque S
Modbus Serial Firewall
     - Modbus deep packet inspection
     - Modbus RTU/ASCII
     - RS-485/422/232 interface
     - Adds Modbus security to an existing firewall

PortBloque E
Modbus Ethernet Firewall
     - Modbus deep packet inspection
     - Modbus Ethernet to Serial Conversion

            Modbus TCP/UDP
     - RS-232/422/485 interface

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