Internal Firewall - Emerson Wireless 1420 Gateway Reference Manual

Operation and Maintenance
September 2020
Figure 5-3: RS-485 LAN Architecture
A. Engineering station
B. Primary control network
C. Secondary control network
D. Controller and I/O
E. Serial I/O card
F. RS485 bus
G. Gateway
5.3

Internal firewall

The Gateway supports an internal firewall that inspects both incoming and outgoing data
packets. TCP ports for communication protocols are user configurable, including user
specified port numbers and the ability to disable ports.
The Gateway's internal firewall settings can be found by navigating to System Settings →
Protocols → Protocols and Ports.
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Reference Manual
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