After the installation of NSE/NSC how to check ?
Equipments required for verifying the Clock:
· PCM Analyser that can measure the clock on the 2 mbps PCM stream.
· Small screw driver of appropriate size to turn the screw of the potentiometer in TSC card.
· Patch card to extend the 2 mbps stream to the analyser.
Setup for measuring the Clock;
· Select any PCM connected to TAX Exge and remove the Ulink in the DDF for the PCM under test.
· Extend the trans lead of the stream from the Local exchange to the analyser and read the clock frequency
· Extend the receive leads of the same PCM stream to the analyser and read the clock frequency (Rx).
Tx and Rx should be equal or with a difference of + or-3 Hz.