Keri Systems

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Keri's Auto USB solution provides the advantages of a TCP/IP-based system with none of the headaches, in an easy-to-configure, plug and play format, all using standard Ethernet components and wiring, but without requiring Ethernet knowledge or approval from the customer's IT Department.

In the world of access control, Ethernet or TCP/IP network-based systems are becoming the solution of choice for customers and installers alike.  Keri's NXT hardware platform is one of the first to be directly network compatible - it hangs on a network with no LAN adapters required.  But, some installers are not yet versed in Ethernet technology, and some customers have IT Departments who prefer that the access control system not be deployed on the corporate network.  Keri has a solution that overcomes over both of these obstacles.

AutoUSB, as provided for in our Doors.NET software, allows integrators to easily connect and configure NXT hardware-based systems for up to 256 readers by using the PC’s USB Port.  If the system is more than 4 readers, using off-the-shelf Ethernet switches allows system expansion, but still no network knowledge is required.  After making the simple plug-in connections, controller addressing is done automatically via the click of a button in the Doors.NET software. Once addresses are assigned, the installer can immediately begin programming the system according to the customer’s requirements.


  • Get the benefits of an Ethernet-based system without the complications

  • Connects NXT Hardware via USB Port on PC

  • Plug-and-Play connectivity and functionality

  • No knowledge of Ethernet or TCP/IP networking necessary

  • All controller addressing done automatically

  • Greatly simplifies setup and configuration for systems up to 256 Readers

  • Utilizes inexpensive CAT5 cable for all networking


Adobe Acrobat (PDF) file formatAutoUSB Networking Application Note

Use the PC's USB Port to create an access control network, without requiring TCP/IP knowledge and without involving the customer's IT Department

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