The ForeignDeviceTable is a frozen child slot of the BacnetIpLinkLayer (Link) node under an BacnetIpLinkLayer child of the BacnetComm, BacnetNetworkLayer. If the station is operating as a BACnet foreign device, this FDT table contains information about other BAcnet foreign devices registered with the station. Typically, this table is automatically populated, and devices are purged after the requested lifetime expires.

Its default Fdt Manager view allows manually entering foreign devices, if they are incapable of self-registration. Manually entered foreign devices are not purged from the FDT table. See Foreign Device Table.