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Performance Tests
STM-1/STS-3 Transmitter Output Waveshape
STM-1/STS-3 Transmitter Output Waveshape
Specifications
Description
An Oscilloscope is connected to the HP 37718A/19A Transmitter STM-1/
STS-3 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 mask. The STM/STS Framing is disabled during
this test.
Equipment Required
Procedure
NOTE This performance test is written using the HP 54520A Oscilloscope with
Option 001 - Telecom Masks Application. If any other Oscilloscope is used
the keystrokes given in this procedure will not apply.
Installing the Telecom Masks Option
1 Insert the Disk containing the Telecom Mask into the Oscilloscope
Disk Drive.
2 Press (Blue Key)
3 Press then .
Pulse Shape Meets ITU Recommendation G.703
Amplitude
±0.5V ±10%
Oscilloscope : HP 54520A - option 001
75Ω Termination
: HP 15522-80010
T Connector : HP 1250-0781
SHIFT DISK
DIRECTORY ROOT DIRECTORY
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