Anritsu BERTWave MP2100B, Operation Manual, Page: 295 / 382

9.2 Performance Test for Error Detector
9-19
9
Performance T
est
9.2.5 Error detection
(1) Specification
50 mVp-p
Error detection is possible for pattern PRBS31, mark ratio 50%,
single end, and back to back connection.
Without the Option 092: 11.32 Gbit/s
With the Option 092:
12.5 Gbit/s
(2) Setup
Same as Figure 9.2.2-1 and Figure 9.2.2-2.
(3) Procedure
1. Attach a 20 dB fixed attenuator to the PPG1 Data Out connector.
(Refer to (a) in Figure 9.2.2-1.)
2. Connect coaxial terminators to the PPG1 Data Out and ED1
Data In connectors.
3. Connect the Sync Out and Trigger Clk In connectors using a
coaxial cable.
4. Connect the PPG1 Data Out and Ch A In connectors using a
coaxial cable.
5. Touch [PPG/ED Ch1], and then touch [PPG].
Set the value as follows:
Amplitude: 500 mV
Bit Rate:
Variable, 11320000 kbit/s (Without the Option 092)
Variable, 12500000 kbit/s (With the Option 092)
Data/XData Out: On
Reference Clock: Internal
Offset:
100 ppm
Test Pattern: PRBS 2^31–1, Pos
6. In the Eye/Pulse Scope window, touch [CH A] to measure the
amplitude.
7. Adjust the PPG1 Amplitude so that the Eye/Pulse Scope
amplitude is 50 mV ±1 mV.
8. Touch [ED], and set as follows.
Data Input condition: Single-Ended Data
Gating Cycle:
Single
Gating Period: 10 s
Test Pattern: PRBS 2^31–1, Pos
Threshold: 0 mV
9. Connect the PPG1 Data Out and ED1 Data In connectors using
a coaxial cable. (Refer to (b) in Figure 9.2.2-1.)
10. Touch [Start] at All Measurements.