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3． System Architecture and Connections
EverAccess® NAV Controller runs the embedded Linux and includes the built-in browser-based
management software. No dedicated computer needs to be running to capture and store the events.
Users can access and manage the controller or the system from any computer on the network.
This chapter introduces the 3 types of system architectures in order of system scale. Additionally, the
RS485 Bus extension is introduced for extending more door controls with EverAccess Flex controllers.
3.1 Small System for 8 Doors
As introduced in chapter 1, NAV Controller provides a flexible, modulated installation up to 8 doors or
readers directly. No additional controller or computer needed.
The network settings can be configured directly from the LCD and keypad on the controller. As long as
the network settings are correct, users can access it by typing the controller IP address in the browser
from a computer on the network. The built-in browser based software will provide the full
comprehensive functions to manage and monitor the system.
3.2 System for 256 Doors
Each NAV Controller can connect and control up to 31 EverAccess Flex controllers via RS485 bus. Each
Flex controller can hook up to 8 doors/readers, so total 256 doors/readers can be controlled under the
architecture of one NAV Controller plus 31 Flex controllers.
Users can connect to the NAV Controller via a computer to remotely review, and monitor all the events
on NAV and Flex controllers. Users can also all 31 Flex controllers from the browser-based management
software.
The system structure is illustrated in the below figure:
TCP/IP
Figure 3-1 Connecting the Controller to a PC
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NAV IP Access Controller
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