
3-26
Performance Tests
Multiple PDH Transmitter Outputs (Options UHC, [US6])
Figure 3-16
2 Mb/s Pulse Mask
24. Repeat steps 20 to 23 with the Oscilloscope Channel 1 connected to SIGNAL
OUT 3 and SIGNAL OUT 4 in turn.
25. Press
on the oscilloscope to display the full waveform and use the
following sequence to display the isolated negative pulse:
Select
menu.
Set trigger level to middle of negative pulse.
Set Trigger to P
ATTERN
.
Set Sequence to H X X.
26. Use the oscilloscope
function to display an inverted pulse
mask on the oscilloscope.
27. Adjust the oscilloscope timebase, delay and vertical sensitivity controls to verify
that the pulse meets the mask as shown in Figure 3-16. Use the displayed settings as
a guide.
28. Measure the peak pulse amplitude at mid-pulse-width using the Oscilloscope and
verify that this is between 2.133V and 2.607V.
29. Repeat steps 27 and 28 with the Oscilloscope Channel 1 connected to SIGNAL
OUT 2 and SIGNAL OUT 3 in turn.
AUTOSCALE
TRIG
STORE INVERT
Summary of Contents for 37717C
Page 2: ...HP 37717C Communications Performance Analyzer Calibration Manual ...
Page 5: ...2 ...
Page 21: ...xviii Contents ...
Page 109: ...2 20 Installation Additional Precautions for Service Engineers ...
Page 312: ...3 203 Performance Tests Trigger Output Option UKZ Figure 3 57 Monitor Input Test Setup ...
Page 375: ...3 266 Performance Tests Performance Test Record ...
Page 379: ...4 4 Installation Current Previous Terminology ...
Page 392: ...B 9 Appendix B Fitting Calibrating Testing New Modules Typical Jitter Transmit Spectrum ...
Page 393: ...B 10 Appendix B Fitting Calibrating Testing New Modules ...