EXFO FTB/IQS-88000 Series Power Blazer for FTB-2/2Pro/500/IQS-600 - Manual (Page 437)

Test Functions
Power Blazer 425
FDL - Bit-Oriented Message
FDL - Bit-Oriented Message
Allows to set and configure the Bit-Oriented Messages (BOM) of the
Extended Super-Frame (ESF).
Note: FDL is only available for DS1 interface with ESF framing. For Dual RX test,
FDL is only available for the DS1 TX/RX port 1.
From the Test menu, tap Functions, FDL, and the Bit-Oriented Message
tab.
Generated Messages

Priority
Codeword: The Bit-Oriented Message codewords are priority
messages sent over the Data-Link. These messages are mostly used for
networking operation and maintenance. A Bit-Oriented Message
consists of 8 consecutive ones followed by a byte starting and ending
by zeros.
Injects generates the selected codeword priority message.

Command/Response
Amount allows the selection of the number of message to be
generated. Choices are 1 to 15. The default value is 10.
Inject manually generates the selected amount of messages.
Codeword Pattern
RAI 00000000 11111111
Loopback Retention and Acknowledge 00101010 11111111
RAI-CI 00111110 11111111