VeEX MPA User Manual page 407

MPA_e_manual_D07-00-129P_RevA00
Protocol Tabs
The Transmit POH screen contains the following options:
Function
AU-<#> Added
HP Overhead
Bytes
HP J1 Trace
407
Description
Allows the user to enter the number of the specific AU
channel to set as the foreground (source) channel. The
default setting is 1.
Allows the user to select any of the Higher-order Path (HP) or
Lower-order Path (LP) Overhead bytes to edit their
hexadecimal values.
•
HP Overhead Bytes include: J1, B3, C2, G1, F2, H4,
F3, K3, and N1.
•
LP Overhead Bytes include: V5, J2, N2, and K4.
LP Overhead Bytes only appear when a LP 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.
The J1 Trace is a repeating 64-byte, 16-byte or 1-byte
pattern that can be configured to send the system's default
ASCII pattern, a customized user-defined ASCII pattern, or a
1-byte hexadecimal pattern.
The following options are available:
•
Default (64 byte) - Selects the default 64-byte ASCII
message as the transmitted trace pattern. The
message consists of 62 ASCII characters appended
with CR and LF characters at the end of the message.
•
User Defined (64 byte) - Selects a 64-byte user-
defined ASCII message as the transmitted trace
pattern. The message is entered and saved using a
touch screen keyboard. The user-defined message
can be up to 62 ASCII characters, appended with CR
and LF characters at the end of the message.
•
Default (16 byte): Selects the default 16-byte ASCII
message as the transmitted trace pattern. The
message consists of 15 ASCII characters, appended