Infiniband FDR (14G)/EDR (26G) AOC Evaluation
| - 8ch (4ch End-to-End) BER |
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8ch simultaneous testing |
| - Crosstalk Effect Check |
⇒ |
Timing control and skew control between channels |
| - Jitter Tolerance Test for CDR |
⇒ |
SJ/RJ/BUJ/SSC Jitter Tolerance |
| - Output Waveform Test |
⇒ |
TJ/DJ/RJ/Bathtub Jitter,
Eye Diagram (BER contour mask) analysis |
8ch (4ch End-to-End) BER
Infiniband QSFP-type active optical cables (AOC) support
simultaneous transmission for up to 8 channels using 2 X 4ch end-
to-end transmission. One MP1800A unit supports up to 8ch (with
PPG 8ch, ED 8ch, or PPG 4ch + ED 4ch installed) and all channels
can be measured simultaneously using two MP1800A units for fast
measurement with high performance.
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Crosstalk Effect Check
Processing high-speed digital signals requires both logic tests and
actual equipment tests. The MP1800A supports both pattern
synchronization and phase adjustment for each channel, permitting
easy testing of AOC crosstalk effects.
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Jitter Tolerance Test
The MU181500B Jitter Modulation Source supports Jitter Tolerance
tests of various standards because it can add SJ (two types), RJ,
BUJ, and SSC simultaneously at up to 32.1 Gbit/s.
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Bathtub Jitter and Eye Diagram Analysis
The built-in ED Clock Delay function supports Bathtub Jitter (TJ,
RJ, DJ) analysis. Low bit error rates of 1E-12, 1E-15, etc., can be
estimated quickly from transitions in bit error rate versus phase.
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SJ, RJ, BUJ and SSC Jitter Generation Supporting 32.1 Gbit/s
The intrinsic jitter of the clock output from the MU181500B Jitter Modulation Source is less than 350 fs rms. The combination of low-jitter
waveform with excellent jitter transparency supports high-accuracy Jitter Tolerance tests. Moreover, simultaneous injection of RJ, BUJ and
SSC as well as dual SJ for two-tone supports various Jitter Tolerance tests. Additionally, the MX181500A Jitter/Noise Tolerance Test Software
supports multi-mask tables as well as easy mask editing to support next-generation standards.
Bathtub Jitter
Measures optimum bit error rate based on changes in bit error rate
relative to phase margin and performs jitter analysis (TJ, DJ, RJ).
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Eye Diagram
Captures bit error rate contours linking specified bit error rate points.
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