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This article is about the telecommunications device. For the library model, see Functional Requirements for Authority Data.

FRAD (Frame Relay Access Device or Frame Relay Assembler/Disassembler) is a device that turns data packets into frame relay frames that can be sent over a frame relay network and turns the received frame relay frames into data packets. Its assembly and disassembly functionality is similar to a Packet Assembler/Disassembler (PAD), which is used for accessing X.25 networks.