2.2 Types of FDAPs
FDAP as backbone router
FDAP has a radio board and an autonomous power subsystem that operates within a range of DC input. FDAP
supports wireless radio communication, and it does not support Wi-Fi or other radio technologies. The FDAP
may be used for Class I Division 2, Zone 2 and general-purpose applications.
FDAP as field router
A FDAP can be used as a Field Router (FR). If FDAP is not connected to the physical Ethernet, it functions as a
line powered FR. FDAP as a line powered FR option can be used for extending field mesh into hazardous
environments where normal infrastructure nodes are not suitable. The FDAP may be used as a field router for
Class 1 Division 1, Zone 0/1 applications that require IS protection methods and design techniques. This also
supports RS485 communication to transmit data from Modbus slaves over Wireless ( FEWIO role).
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