Figure 15: Rms Jitter Measurement - Tektronix OI1125 Instruction Manual

Performance Verification
40
Histogram box

Figure 15: RMS Jitter measurement

4. Select the Acq tab to set the acquisition parameters.
a. In the Stop After box, select Condition.
b. In the Condition field, select Number of Acquisitions from the drop-
down menu.
c. Enter 300 (# of acquisitions) in the field below the Condition field.
d. In the Stop Action box, select None.
5. Press the Clear Data button and then the Run/Stop button on the oscilloscope
to take a measurement. The measured jitter value for the 2.488 Gb/s rate is
displayed in the window as shown in Figure 15.
6. Check that the measured jitter is within the limits on the test record, and
record the measured jitter in Table 17 of the test record.
7. Set the Filter field on the oscilloscope to OC-192 by using the procedure that
begins with step 3 on page 38, then recall the 9.953 Gb/s bit rate on the
BERT and repeat steps 1 through 6 for the 9.953 Gb/s bit rate.
8. Set the Filter field on the oscilloscope to None by using the procedure that
begins with step 3 on page 38.
Mask hits
1
Rising edge Measurement window
OI1125 E/O Transmitter Instruction Manual
Use this
value