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Operations
9.
Enter the Verification Password in the Gateway Password screen. The network is silenced and
confirmation is displayed as shown below.
Silence Mesh Network at the Panel
To silence the mesh network using the IFC2-3030 or JNCA-2 with IFC2-640 FACP, refer to the
"shutdown wireless" section of the IFC2-3030 or JNCA-2 Manual.
2.9.7 Multiple Wireless Sensor Network Installation Restrictions
The SWIFT Network technology shares the RF spectrum with other JCI Wireless Sensor Network
systems. JCI has established a limit of 4 overlapping networks to avoid congestion in the RF spec-
trum. If the 4 network limit is exceeded, a system trouble will be generated by the system that
detects 4 or more adjacent networks. To resolve this trouble, the instances of overlap need to be
removed. Refer to Appendix C:, "Troubleshooting and Testing" for suggestions on removing over-
lap between wireless networks. The trouble will be self-restoring up to 36 hours after the condition
is resolved. To expedite the trouble resolution, toggle the network that is reporting the trouble in
and out of mesh formation mode.
2.9.8 Avoiding RF Interference
The SWIFT wireless mesh network uses radio frequency hopping spread spectrum technology to
communicate in the 900 MHz ISM band (902MHz to 928MHz). Other commercial and industrial
products also operate in this band. If two-way radios or other wireless communication devices are
used during the installation process, it is recommended that they be kept at least 4 feet away from
the JCI wireless devices or that they operate on a different frequency band to ensure rapid mesh for-
mation.
A properly installed SWIFT wireless mesh network with primary link reporting enabled will be
highly immune to RF interference from other wireless products even when they are nearby. The use
of the weak link reporting feature is highly recommended. If the system is installed in a controlled
environment where other 900 MHz ISM band devices will not be present, the primary link report-
ing feature may be disabled to permit greater distances between installed devices if required.
The SWIFT wireless mesh network will be able to automatically detect and avoid certain types of
in-band channel interference (often caused by two-way radios) by using an alternate channel set.
The system will log detection and avoidance of this kind of interference in the gateway history as
"Walkie Talkie Mode" Entry or Exit and in the IFC2-3030 history as Alternate Channel Set or Nor-
mal Channel Set.
SWIFT™ Smart Wireless Integrated Fire Technology Manual — P/N LS10036-000JC-E:C 5/8/2015
Figure 2.26 Silence Mesh Network Confirmation Message
JFWSG FlashScan Wireless System Gateway
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