VeEX MPA, User Manual

Page: 196 / 842

OTN Tab
196
status has been detected. This bit is set to 1 to indicate a
BDI.
The Status (STAT) bits are three bits used to indicate the use
of a maintenance signal.
SAPI Source Access Point Identifier. The SAPI is the first part of
the multi-frame Trail Trace Identifier (TTI) structure. A 15-
character string can be entered for the SAPI.
DAPI Destination Access Point Identifier. The DAPI is part of the
multi-frame TTI structure. A 15-character string can be
entered for the DAPI.
Specific Operator Specific. This is part of the TTI structure. A 32-
character string can be entered for this value.
OTN Transmit - OTN OH / OPU
Use this screen to edit the Optical Channel Payload Unit (OPU) bytes.
Option Description
RES-1 through
RES-3 and
RES-5 through
RES-8 Seven bytes of the OPU overhead are reserved for future
use. These bytes are set to all zeros.
PT (PSI-0) Payload Type. This byte identifies the type of signal mapped
into an OPU.
Positive Adjust Positive Justification Opportunity byte.
Negative Adjust Negative Justification Opportunity byte.
The OPU Positive and Negative Adjust buttons are only available for Asynchronous
mappings.
OTN Transmit - OTN OH / INTRUDE
MPA_e_manual_D07-00-129P_RevA00