Johnson Controls MS-NAE4520-2 NAE45 Metasys Network Automation Engine Control [Refurbished]

Supports one LonWorks trunk, includes an additional RS-232-C serial port; supports a maximum of 127 devices on the LonWorks trunk.

The Network Automation Engine (NAE) is a web-enabled, Ethernet-based, supervisory device that monitors and controls networks of field-level building automation devices, HVAC equipment, and lighting.. Johnson Controls. Johnson Controls. MS-NAE4520-2.