Johnson Controls IFI-WS Installation And Operation Manual page 69

Overview System Architecture
Protected Premises Unit
NFN Network NFN Network
Redundant Gateway
Embedded Gateway
* Ethernet Hub (TCP/IP) * Ethernet Hub (TCP/IP)
UL 864 Listed Switch UL 864 Listed Switch
Other Technologies
LAN/WAN/Internet/Intranet
(Dedicated Only)
* Ethernet Hub (TCP/IP)
UL 864 Listed Switch)
Workstation acting as a Proprietary
Workstation
Receiving Unit with redundant
gateways. System is not UL-listed
for control in this configuration.
Figure 7.3 System with Redundant Gateway Example
IFI-WS Installation and Operation Manual – P/N LS10050-000JC-E:A 12/11/2014 69