Multiple engines with one ADX - Metasys - LIT-12011279 - General System Information - Metasys System - 13.0

Network and IT Guidance Technical Bulletin

Brand
Metasys
Product name
Metasys System
Document type
Technical Bulletin
Document number
LIT-12011279
Version
13.0
Revision date
2023-09-29
Product status
Active
Language
English

The following figure is an example of the connectivity and protocols for a Metasys system using multiple engines and an ADS. Table 1 describes the protocols used in Figure 1.

Figure 1. Metasys System with Multiple Engines and an ADS

Table 1. Metasys System with Multiple Engines and an ADS

Interaction between callouts

Protocol

Communication direction

1

2,3,5

HTTP

Unidirectional

1

4

Customer standard configuration

Customer standard configuration

2

3,5

HTTP

Bidirectional

2,3,5

4

DHCP, DNS, SMTP, SNMP, SNMP Trap, SNTP

Unidirectional

3,5

2

SNTP

Unidirectional

3,5

3,5

HTTP, BACnet, DNS

HTTP, BACnet: Bidirectional

DNS: Unidirectional

1 In Unidirectional communication, only the originating device initiates requests (assuming synchronous response is allowed in the request).
2 To ensure proper performance, a Web browser should never use an engine for its SNTP server.