Installing the i-Vu® Open Link
   
 
i-Vu Open Link  Carrier Proprietary and Confidential  CARRIER CORPORATION ©2017  
Installation and Start-up Guide    All rights reserved 
  17 
 
To set up BACnet Broadcast Management Devices (BBMDs) 
 
 
 
If your system has multiple routers that reside on different IP subnets, you must set up one router on each IP 
subnet as a BACnet/IP Broadcast Management Device (BBMD).  
Every subnet with a router must have a BBMD configured in order for broadcasts from controllers on that subnet 
to reach the rest of the routers on the network. 
NOTES 
•  The i-Vu® Standard or Plus application - If the i-Vu® web server is on a separate subnet than the rest of the 
routers, the internal router must be assigned an IP address and configured as a BBMD. 
•  The i-Vu® Pro application - If the i-Vu® Pro server is on a separate subnet than the rest of the routers, you 
must register it as a foreign device.  
 
Use the BBMD Configuration Tool to: 
•  Define the Broadcast Distribution Table (BDT) in each BBMD 
•  Enable an i-Vu® Control System to find routers that are on different subnets  
•  Allow controllers on one subnet to communicate with controllers on other subnets  
•  Enable the i-Vu® application to see, upload, or configure controllers on different subnets