NCM legacy network - Metasys - LIT-12011279 - General System Information - Metasys System - 10.1

Network and IT Guidance Technical Bulletin
Product
Building Automation Systems > Building Automation Systems > Metasys System
Document type
Technical Bulletin
Document number
LIT-12011279
Version
10.1
Revision date
2019-12-20

The following figure is an example of the connectivity and protocols used in a Metasys system using the OWS or M5 Workstation and NCMs. See Figure 1 with Table 1, and Figure 1 with Table 1, for the full set of protocols used by the engine, Metasys Server, and Site Management Portal UI.

Figure 1. Metasys System with NCMs

Table 1. Metasys System with NCMs

Interaction between Callouts

Protocol

Communication Direction

1

2

N1

Bidirectional

1

3

SNMP, SNMP Trap

Unidirectional

2

2

N1

Bidirectional

2

4

N1

Bidirectional

1 When using UDP protocol with NCMs, you must specify Port 11001 as being used. For multiple N1 networks, you must use a different port number for each network.
2 In Bidirectional communications, both devices initiate requests.
3 In Unidirectional communication, only the originating device initiates requests (assuming synchronous response is allowed in the request).
4 You can configure multiple N1 networks on the NIE. Refer to the N1 Migration with NIE Technical Bulletin (LIT-1201535) for details.