EXFO FTB-800 Series for FTB-1 - Manual (Page 407)

Test Functions
NetBlazer 397
FDL - Bit-Oriented Message

Command/Response
Current indicates the command/response message detected in the
last second. If no priority message has been detected, “--” is displayed.
Previous indicates the last command/response message detected
excluding the current message. If no command/response message has
been detected since the beginning of the test, “--” is displayed.
Note: See Command/Response on page 392 for the list of possible
Command/Response codeword messages.