![background image](http://html2.mh-extra.com/html/patton-electronics/6511rc/6511rc_user-manual_4024801093.webp)
Matrix Switch test tools
93
Model 6511RC User Manual
5 • Troubleshooting and maintenance
•
64-byte Trace Message Length
—
use the
section trace string
for section trace messaging
,
and ignore the
contents of
J1.
The value of
section trace string
may be any alphanumeric text string up to 64 characters long.
The 64-byte field does not include any CRC.
Number of paths per frame
The STM-1 frame can support one path or three paths, depending on how the STM-1 signal is mapped.
•
AU-4 mapping
—
Using AU-4 mapping the STM-1 frame supports a single path. When you select
AU-4
mapping
for the value of the
SDH Mapping
parameter, the Matrix Switch displays only the Path-1 Trace
parameters.
•
AU-3 mapping
—
Using AU-3 mapping the STM-1 frame supports three paths. Each of the three AU-3s in
the STM-1 frame represents a separate path. When you select
AU-3 mapping
for the value of the
SDH Map-
ping
parameter, the Matrix Switch displays the path trace parameters for each of the three paths. Path-1,
Path-2, and Path-3 (one path trace for each AU-3 in the STM-1 frame).
To enable path trace:
1.
On the configuration menu, click the
SDH
hyperlink to display the
SDH Overview
page.
2.
At the top of the
SDH Overview
page, click the
Configuration
hyperlink to display the
SDH Configuration
page (see
figure 68
).
Figure 68. Path Trace parameters on the SDH Configuration page
3.
In the
SDH Trace Parameters
table, for
Path-1 Trace Monitor
, select
pathTraceEnable(1)
from the drop-
down menu.
4.
For
Path-1 Trace
message string, enter the alphanumeric string your connected SDH network uses for the
path-1 trace message in the text box.