EXFO FTB-8500 Series for FTB-500 - Manual (Page 258)

WIS Tabs
244 FTB-8500 Series and FTB-8120NGE/8130NGE
WIS TX
Path Signal Label (C2)
The C2 byte is allocated to indicate the content of the STS SPE, including
the status of the mapped payload. The default setting is 1A : 10 Gbps
Ethernet (IEEE 802.3).
J0 Trace
Message: Enter the J0 trace value in 16 bytes format. The default message
is EXFO 10GigE.
J1 Trace
Message: Enter the J1 trace value in 16 bytes format. The default message
is EXFO 10GigE.
Note: 16-bytes selection allows typing up to 15 bytes (a CRC-7 byte will be added
in front for a total of 16 bytes).
Note: J0 and J1 values should be 7-bit ASCII suitable characters including the ITU
T.50 Characters on page 64.