Emerson 1420 Reference Manual page 80

Appendix D: Redundancy
July 2015
Figure D-3. Redundancy Setup Connections
A. Gateway A
B. Gateway B
C. PC / Laptop
Once the Gateways have finished the pairing process, Gateway A will appear as the current
active Gateway on the left hand side and Gateway B will be the standby Gateway on the right
(note that left/right hand appearance can be changed on the Redundancy System Settings
page). If significant configuration changes need to be downloaded to the standby Gateway, it
may temporarily go offline shortly after the pair process is complete. This is expected behavior
and does not represent instability in the system.
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A
C
D
D. Primary Ethernet
E. Secondary Ethernet
B
E
Reference Manual
00809-0200-4420, Rev HC
Redundancy