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Network Automation Engines (NAEs) enable Internet Protocol (IP) connectivity and web-based access to Metasys Building Management Systems (BMSs). NAEs leverage standard building management communication technologies, including BACnet® protocol, LonWorks® network, and N2 Bus protocol to monitor and supervise a wide variety of Heating, Ventilating and Air Conditioning (HVAC); lighting, security, fire and access control equipment.


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Network Automation Engine

Supports two N2 or two BACnet MS/TP (RS-485) trunks (or one N2 trunk and one BACnet MS/TP trunk).


  • Communication Using Commonly Accepted IT Standards at the Automation and Enterprise Level
  • Web-Based User Interface
  • Site Director Function
  • Support for Web Services at the Automation Network Level
  • User Interface and Online System Configuration Software Embedded in NAE
  • Supervision of Field Controller Networks Including BACnet MS/TP, N2 Bus, LonWorks Network, and BACnet IP Devices
  • Multiple Connection Options for Data Access

Max. Number of objects5000

N2 Bus/BACnet (RS-485) trunk2

LONWORKS trunk---

Max. Number of N2 or MS/TP Devices per Trunk100

Max. Number of LONWORKS Devices per Trunk---

Internal modem---

RS-232-C Serial Ports2

USB Serial Ports2

Ethernet Ports1

Power Supply24 V AC

Protection BatterySupports data protection on power failure. Rechargeable gel cell battery

Processor1.46 GHz Intel Atom™ Bay Trail E3815 processor

Memory16 GB flash nonvolatile memory for operating system, configuration data, and operations data storage and backup; 2 GB DDR3 SDRAM for operations data dynamic memory

Operating SystemJohnson Controls OEM Version of Microsoft Windows Embedded Standard 7 with SP1 (WES7)

Working Days

Document TypeLanguage
Last Update DatePreviewDownloadsCopy Link
RIng MAnager IP Network System_LIT-1901096
EN 12 2020
NAE55 European Catalog Page
EN 2021
EN 10 2020
NCE25, NAE35, and NAE45_LIT-1901147
EN 10 2020
Network Engines_LIT 1900195
EN 07 2021
Network Engines_LIT 12012138
EN 07 2021