VeEX MPA User Manual page 196

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