© 2015 by Honeywell International Inc. All rights reserved.
EPKS Control Configuration Guidelines Revision: B
AuthorFrederic Kang
June 15, 2023
Honeywell
FTE NETWORK
5
Switch A
A
A
B
B
B
Switch B
Crossover
B AA
Firewall A
Firewall B
A
B
• FTE is a single network, not a dual LAN
- FTE has less than 0.5 second switchover
• FTE nodes are connected twice to a single LAN through
their Network Interface Card
• Connecting each FTE Node to a
switch in the redundant pair forms
an FTE “tree”
• All of the A ports on the network
interface controller are connected to
one switch (A switch)
• The A ports and A switch(es) form
the Yellow Tree
• All of the B ports on the network
interface controller are connected to
switch B
• The B ports and B switch(es) form
the Green Tree
• The pair of redundant switches
at their highest level requires
one crossover cable to
interconnect Switch A and
Switch B
