VeEX UX400, User Manual

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7.5 SDH Tools
SDH Tools can be accessed by tapping the SDH/SONET Tools tab on the home screen. SDH test type will need to be selected in Setup to view SDH parameters under the
Tools.
SDH 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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7.5.1 Overhead Analyzer
Tap the Overhead Analyzer icon to display the OH screens shown below. There are tabs for:
SOH RX, which displays the bytes associated with the Section/LINE Overhead
POH RX, which displays the bytes associated with the Path Overhead
Summary, which displays the Path Traces (J0, J1, J2), APS (K1, K2), Synchronization status (S1), STS Path (C2), and VT Path (v5) Signal Label bytes
SOH
UX400 10G e-Manual D07-00-058P RevA00 Page 171 of 209