EXFO FTB/IQS-85100G Packet Blazer for FTB-500/IQS-600 - Manual (Page 299)

Test Functions
Packet Blazer 289
OH - OTN

JC6 or RES
1
JC6, column 15, OPU OH: Bits 1-3 set to all-0s, and bits 4-8 are
controlled by GMP function. This byte is not configurable.
RES, column 15, ODU OH: The Reserved (RES) bytes are configurable
from 00 (default) to FF.

JC3 or JC
1
JC3, column 16, OPU OH: Controlled by GMP function. This byte is not
configurable.
JC, column 16, OPU OH:

Bits 1-6, Reserved (RES), are configurable from binary 000000
(default) to 111111.

Bits 7-8, Justification Control (JC), are configurable from binary
00 (default) to 11. Not available with ODU mux. Changing the JC
value will corrupt the payload.
Row 4

GCC1, column 1-2, ODU OH: The two General Communication
Channel-1 bytes are configurable from 00 (default for each byte) to FF.

GCC2, column 3-4, ODU OH: The two General Communication
Channel-2 bytes are configurable from 00 (default for each byte) to FF.

APS/PCC, column 5-8, ODU OH: The Automatic Protection Switching /
Protection Communication Channel overhead bytes are defined in the
ITU-T G.709 standard. These bytes are configurable from 00 (default) to
FF.

RES, column 9-14, ODU OH: The six Reserved (RES) bytes are
configurable from 00 (default for each byte) to FF.
1. Depending on the test MUX/Mapping.