EXFO FTBx-88260 - Page 648

Test Results
632 FTBx-88000 Series
Traces - OTN
 SAPI (Source Access Point Identifier) indicates the received SAPI
message (TTI bytes 0 to 15). The expected SAPI message is available
when the SAPI OTU-TIM / SAPI ODU-TIM check box is selected.
A maximum of 16
1
characters is allowed.
 DAPI (Destination Access point Identifier) indicates the received DAPI
message (TTI bytes 16 to 31). The expected DAPI message is available
when the DAPI OTU-TIM / DAPI ODU-TIM check box is selected.
A maximum of 16
1
characters is allowed.
1. For Multi-Channel OTN lower ODU layer, a maximum of 13 characters are allowed since the channel number is
automatically appended to the message.
TTI Traces Default Message
a
a. The default message contains a NULL (all 0’s) character preceding it. NULL (all 0’s)
characters are automatically appended to the message for bytes that are not
defined.
SM EXFO OTU SAPI
PM EXFO ODU SAPI
b
b. The channel number is automatically appended to the message.
TCM
c
c. Not available with Multi-Channel OTN.
EXFO TCMi SAPI
TTI Traces Default Message
a
a. The default message contains a NULL (all 0’s) character preceding it. NULL (all 0’s)
characters are automatically appended to the message for bytes that are not
defined.
SM EXFO OTU DAPI
PM EXFO ODU DAPI
b
b. The channel number is automatically appended to the message.
TCM
c
c. Not available with Multi-Channel OTN.
EXFO TCMi DAPI