Firewalls for Industrial Networks
(Existing Customers Only)
EncryptorPak
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
            Modbus 
RTU/ASCII 
     - RS-232/422/485 interface

Company
Sequi (sĕ-kwee) 
Developers of cybersecurity products for industrial control systems.
Sequi, Inc. 
17221 E. 17th Street Suite M 
Santa Ana, CA 92705 
714.884.3507
Founded in 1999, we are a privately held company focused on designing and manufacturing data and network security products. Our proven expertise in embedded systems, cipher implementation, networking protocols, and communications has led to technology solutions for government, aerospace, and commercial industries. 
All of our products are developed in-house and assembled here in California. 

Why We Can Help You
We can secure industrial remote access in ways that other products don’t. That’s because our firewalls are purpose-built to analyze industrial protocols and filter at the deepest levels. With rule-enforced access to control devices, you’ll keep your industrial network secure and reliable.
 
What Sets Us Apart 
The hallmarks of our products are quality, affordability, and ease of use. Our products are priced significantly lower than our competitors’ products. And online technical support is always free of charge. 

Smarter Decisions
We will continue to innovate to meet the evolving needs of our customers. The following end of life products have transitioned to newer platforms or other products with richer functionality. 
 
  • VPN GW Power Controller - Model GW/P8 - slim 1U rack 
  • VPN GW Serial Server - Model GW/S1 
  • VPN GW RAS - Model GW/R1 
  • PortMarshal - Model 171R - 3U rack 
  • EncryptorTS - Model 171T
  • EncryptorPak
 
Our Mission 
We are driven to deliver the most cost-effective and high quality solutions for protecting data between connected devices in the industrial control environment.
 
Our Vision 
We are in the business of improving cybersecurity transformation towards the advancement of a safe and interconnected world.