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15 • SDH
Model 6511RC Switch Matrix Administrators’ Reference Guide
146
SDH Configuration link
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 Mapping 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).
Path Trace Monitor
Options for path trace are:
•
pathTraceDisable(0)—Path Trace function disabled.
•
pathTraceEnable(1)—Path Trace function enabled.
Path Trace (sdhPathTrace)
This is a character string with the maximum length based on the path trace msg len setting. This field is not
used with 1 byte message length. If the length is set to 16, this field is 15 bytes maximum length. A 1-byte crc-
7 check is appended to the string to make 16 bytes. If the length is set to 64, this field can hold up to 64 char-
acters.
Path Trace Msg Len
(sdhPathTraceLength)
Options below determine the path-1 trace message length:
•
pathTraceLen1(1)—Path Trace Message is one byte in length.
•
pathTraceLen16(16)—Section Trace Message is 16 bytes.
•
pathTraceLen64(64)—Section Trace Message is 16 bytes.
Path Trace J1 Byte
If the message length field, is set to 1 byte, this field is used for the message. It holds a decimal value from 0-
255. This field is ignored for 16 and 64 byte message length.
Path Signal Label
Enter the value your connected SDH network uses for the path signal label in the SDH frame
SDH Mapper
The SDH Mapper allows configuration of the E1 payload timing with regard to SDH timing.
Note
When using AU-3 mapping/multiplexing, the SDH mapper window shows
configuration options for TUG3-1, TUG3-2, and TUG3-3. When using
AU-4 mapping/multiplexing, only one configuration field with the heading
Payload Type is shown.
Summary of Contents for 6511RC
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