PAM-4 ROSA testing

ROSA test set up and PAM4 eye

Key Features

  • up to 31 GBaud PAM-4
  • Data rate 24 to 30 Gbps
  • Built-in optical Modulator
  • Excellent optical PAM-4 signal
  • Adjustable OMA
  • All IEEE802.3bs & OIF CEI-56G pattern
  • PRBS pattern length 7, 9, 13, 15, 23, 31
  • PRBS13Q & PRBS31Q
  • User programmable pattern


  • 200G and 400G Ethernet ROSA testing
  • Photonic integrated chip (PIC)
  • System evaluation
  • Reseach and production

 PAM-4 ROSA testing

The MI-PE5610-1 is a up to 31 GBaud PAM-4 optical BERT with a propriety modulator to generate an excellent optical PAM-4 reference signal. The optical master PAM-4 transmitter simplifies accurate and repeatable ROSA testing and system evaluation. A wide range of selectable pattern for compliance test and signal analysis is supported. The OMA of the three PAM-4 eyes are adjustable. Beside PAM-4 an NRZ operation mode extend the available test cases. The error detector operates in real time.

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