VeEX MPA User Manual page 287

MPA_e_manual_D07-00-129P_RevA00
Protocol Tabs
SONET Transmit - POH
The Transmit POH screen contains the following options:
Function
STS-<#> Added
Path and VT
Overhead Bytes
287
Description
Allows the user to enter the number of the specific STS
channel to set as the foreground (source) channel. The
default setting is 1.
Allows the user to select any of the Path or VT Overhead
bytes to edit their hexadecimal values.
•
Path Overhead Bytes include: J1, B3, C2, G1, F2, H4,
Z3, Z4, and Z5.
•
VT Overhead Bytes include: V5, J2, Z6, and Z7.
VT Overhead Bytes only appear when a VT mapping is
selected.
The J1 and J2 bytes is controller by the J1 and J2 Trace
function, and the B3 and V5 bytes can be overwritten from
the Error to Insert function.
When Passthru mode is enabled, Pass/Intrude buttons are
available for each of the overhead bytes to allow for Intrusive
and non-intrusive passthru mode.