Information Technology - Fibre Distributed Data Interface (FDDI) - Abstract Test Suite for FDDI Physical Layer Protocol Conformance Testing (PHY ATS) Replaces ANSI X3.248-1996
This standard defines a conformance test of the PHY functions in a path through an FDDI node. Figure 1 is a functional block diagram of an FDDI path. The path contains the necessary functions to repeat (that is, decode and retransmit) frames through an FDDI node. The PHY Repeat Filter is optional when there is a MAC in the repeat path. If there is no MAC in the repeat path, then the function is implemented in PHY.