3-85
Performance Tests
STM-1 Transmitter Output Waveshape (Options US1, [US5], A1T, [A1U],
A3R [A3S], 120)
STM-1 Transmitter Output Waveshape (Options US1,
[US5], A1T, [A1U], A3R [A3S], 120)
Specifications
Description
An oscilloscope is connected to the HP 37717C Transmitter STM-1 output and used
to view the waveforms with All Ones and All Zeros patterns selected in turn. The
displayed waveshape is checked against the relevant ITU G.703 mask. The STM-1
Framing is disabled during this test using the function of the HP
37717C.
Equipment Required
Procedure
CMI All Ones Waveshape
1. Connect up the equipment as shown in Figure 3-34 and recall HP 37717C
DEFAULT SETTINGS as shown on 3-2.
Figure 3-34 STM-1 Transmitter Output Waveshape Test Setup
Meets ITU Recommendation G.703
MODULE DEBUG
Oscilloscope : HP 54503A
ThinkJet Printer : HP 2225A
75Ω Termination : HP 15522-80010
T Connector : HP 1250-0781