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What is the Johnson Controls MS-NAE5511-3E?
The MS-NAE5511-3E is a Metasys Network Automation Engine (NAE) manufactured by Johnson Controls. It provides Internet Protocol (IP) connectivity and web-based access to Metasys Building Management Systems (BMS), enabling centralized monitoring and supervision of building automation equipment through BACnet and N2 Bus communication protocols.
What does the MS-NAE5511-3E do in a building management system?
The MS-NAE5511-3E acts as a network controller within a Metasys BMS, connecting field-level devices to IP-based networks. It allows facility managers to remotely monitor, supervise, and control HVAC, lighting, and mechanical systems through a standard web browser, without proprietary software.
How many objects does the MS-NAE5511-3E support?
The MS-NAE5511-3E supports up to 5,000 BMS objects, making it suitable for medium to large commercial and industrial facilities such as hospitals, universities, office buildings, and airports.
What communication protocols does the MS-NAE5511-3E use?
The MS-NAE5511-3E supports the following building automation protocols:
– BACnet/IP – for modern IP-based device communication
– BACnet MS/TP – for serial field device integration
– N2 Bus – for legacy Johnson Controls equipment compatibility
Is the MS-NAE5511-3E compatible with older Johnson Controls devices?
Yes. The MS-NAE5511-3E supports the N2 Bus protocol, which ensures full backward compatibility with legacy Johnson Controls field devices, protecting previous infrastructure investments.
What is the difference between an NAE and an NCE in the Metasys system?
In the Metasys ecosystem, an NAE (Network Automation Engine) like the MS-NAE5511-3E serves as a supervisory controller connecting multiple field devices over IP. An NCE (Network Control Engine) combines supervisory and direct digital control (DDC) functions in a single unit. The NAE is preferred when managing large networks of existing controllers.
Where can I buy the MS-NAE5511-3E
The MS-NAE5511-3E is available through Blue BMS, an authorized distributor of Johnson Controls Metasys products serving Brazil and Latin America. Blue BMS offers genuine products, technical support, and competitive pricing for building automation projects.
Is the MS-NAE5511-3E still supported by Johnson Controls?
The MS-NAE5511-3E is part of the Metasys product line by Johnson Controls. For current firmware support, lifecycle status, and compatibility with the latest Metasys software versions, contact Blue BMS for up-to-date technical guidance.
| Specification | Details |
|---|---|
| Model | MS-NAE5511-3E |
| Series | Metasys Network Automation Engine (NAE) |
| Manufacturer | Johnson Controls |
| Max Object Capacity | 5,000 objects |
| Communication Protocols | BACnet/IP, BACnet MS/TP, N2 Bus |
| Connectivity | Ethernet (IP-based) |
| Access Interface | Web-based (browser) |
| Mounting | DIN Rail / Panel Mount |
| Power Supply | 24 VAC/VDC |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
The MS-NAE5511-3E is widely used across industries that require centralized building control and energy efficiency:
Blue BMS is an distributor of Johnson Controls Metasys products, offering: