
DSn Tabs
SONET/SDH Application 281
FDL TX
Bit-Oriented Messages
The Bit-Oriented Messages 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.
³ Priority
On/Off allows generating the selected codeword priority message.
Priority Codeword Pattern
RAI 00000000 11111111
Loopback Retention and Acknowledge 00101010 11111111
RAI-CI 00111110 11111111
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