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

Our Solutions
Change for the better.
When it comes to networks, the word "Security" is often associated with complexity and high-cost. Let’s not forget intrusive. And the exotic skills you’ll need to understand what you are doing. Well, it doesn’t have to be this way. 
Our products will completely change your perspective.
Security That's Fit for ICS and SCADA
More Simple
Low Cost
Our products are purpose-built for securing M2M applications. This is because security runs transparent to host applications. And protocol conversion enables applications to communicate to serial devices over the Internet.
We do our best to make products as easy to use as possible. And we preloaded settings and optimized security to make setup fast. Moreover, our products install without change to the network or your application.
You’ll find our prices are far lower than those of our competitors. There are never any license fees. No per-user fees. And our technical support is always free.
Providing security that’s strong, simple, and affordable. 
This is just our way of doing business.