VeEX VePAL TX300M, User Manual

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10.0 SDH/SONET Tools
10.1 SDH/SONET Tools
Accessing SDH/SONET Tools
On the TX300, tap on Home (main menu) >
Advanced Mode
>
SONET/SDH Tools
On the TX300e, tap on Home (main menu) >
SONET/SDH Tools
10.1.1 Shortcuts
SDH/SONET Tools Menu
Overhead Analyzer:
Displays the Section Overhead (SOH) and Path Overhead (POH) bytes of the received channel.
Overhead Generator:
SDH mode. Used to edit Section Overhead (SOH) and Path Overhead (POH) bytes of the
transmitted channel.
Pointer Tasks:
Displays both AU and TU pointer values and generates AU and TU pointer movements.
Pointer sequences according to ITU-T G.783 recommendations are also possible.
Trace Identifier:
Used to generate and edit J0, J1 and J2 path traces and set expected trace for received channel
according to G.831 recommendations.
Payload Labels:
Used to set the C2 and V5 Path Signal Labels which indicate the content of the High order/STS path
and Low order VCs/ VTs.
APS Testing:
Used to measure Automatic Protection Switching limits. Using selectable triggers, the drop out times of
tributary connections are measured and compared with preset values.
Tributary Scan:
Used to scan individual or multiple tributaries to verify routing and error free operation. Only available in
VC-12 or VC-11mode
TCM Tasks:
Used to analyze or edit the sequence of N1 and N2 TCM bytes by generating alarms and errors in the
Tandem connection sub-layer.
Round Trip Delay (Propagation Delay):
Measurement works by sending a test pattern. Bit errors are transmitted in the
pattern. The time it takes for the error to reach the receiver is the propagation time through the network.
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10.1.2 Overhead Analyzer
Tap the Overhead Analyzer icon to display the OH screens shown below. There are tabs for:
TX300S_e-manual_D07-00-064P_RevA00