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Making Measurements
Performing an SDH Tributary Scan
Performing an SDH Tributary Scan
Description
Verifying an ADM Installation
An important part of the ADM installation process is the verification of path routing
through the ADM (or Digital Cross Connect). In order to verify the routing of VC-n
paths which are terminated by the network element, the mapped payload, dropped to
a PDH tributary port, must be looped back at the digital distribution frame and
mapped into the VC-n at the PDH tributary insert port. VC-n paths which are not
terminated must be looped back at the STM-n level. Since an STM-1 contains 63
VC-12's and a STM-4 contains 252 VC-12's, manually checking each path is time
consuming and laborious.
Using the OmniBER 718 Tributary Scan feature the installation of ADM's can be
automated and any Bit errors or Pattern Loss flagged on the RESULTS display.
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