The S4 Open: N2 Switch
Up one level"Moving the METASYS® by JCI Legacy Forward"
S4 Open: N2 Switch
S4 Open: N2 Switch introduces flexibility and cost savings to Building Automation System retrofit and upgrade projects. The N2 Switch enhances and extends existing legacy Metasys® by JCI installations to give new life to older systems.

Key Links
Key Benefits
- Ability to bring many N2 buses in a large complex building into one virtual N2 bus. The N2 Switch acts as the bus master for each and allows independent adjustment of polling rates and other parameters for each.
- Standard vendor tools are used to configure N2 devices on each N2 bus.
- Automatically locates and identifies new devices, and their Process Points on the N2 bus.
- All points on all N2 buses are displayable through the management console.
- N2 interfaces can be extended over Ethernet - TCP/IP connections
- N2 interfaces can be extended over wireless connections
- Filtering and point mapping allow you to expose only a subset of the active points to upstream supervisory controllers (NCM, N30, or Metasys by JCI Extended systems) through the Virtual N2 Bus.
- The N2 Switch acts as a N2-Open device and attaches to any N2 bus.
Suggested Applications
- Providing the ability to combine multiple legacy N2 buses into a single virtual V2 bus when upgrading older technology, less powerful Supervisory Controllers to current generation Metasys by JCI systems. This approach drastically improves the economics of doing an upgrade by minimizing the number of newer, more powerful, Supervisory Controllers needed and eliminating the need to reprogram or readdress any of the devices on the legacy N2 field bus.
- Extending the N2 bus over a customers existing Ethernet building infrastructure to remote sections of a building or campus combining all of these segments into one virtual N2 bus. See our Extreme N2 Networking Tech Notes for a list of currently supported devices.
System Configuration
Delivered as a network appliance on an Industrial PC for high availability and reliability.
| Feature | Price |
| - 2 Downstream N2 Networks (standard COM ports) | Included |
| - 1 Virtual N2 Network© | Included |
| - IPC hardware | Included |
| Option | Price |
| - Additional Downstream N2 Networks (standard COM port) | TBA |
| - Additional Downstream N2 Network (Ethernet extended RS-485) | TBA |
| - Additional Remote Downstream N2 Network (WAN support, optimized timing, caching, etc) | TBA |
| - Hardware for the remote Ethernet to RS-485 conversion | TBA |
Call or email us to learn more, to request a 30 day demonstration system delivered directly to you, or to request a price quote.
System Architecture
All S4 Open products are based on a common core technology platform enabling Lego®-like "mix-and-match" capability for your building automation systems.
Metasys® as used in this document is a trademark of Johnson Controls, Inc.
