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Performance Tests
STM-0/STS-1 Transmitter Output Waveshape
NOTE It may be necessary to select and / to
visibly fit the waveformto the mask by adjusting the Oscilloscope vertical
gain/position and horizontal delay to obtain a PASS on the Mask.
12 Measure the peak pulse amplitude at the mid pulse-width using the
Oscilloscope and verify that this is nominally 530 mV.
13 Change the signal to STM-0/STS-1 HIGH and check that the +ve and
-ve pulses are nominally 1 V.
14 Change the signal to STM-0/STS-1 LOW and check that the +ve and -
ve pulses max) peaks are nominally 300 mV.
MASK MASK AUTO MASK ALIGN
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