Loopback test module ML4062-ALB2-2A-112

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• QSFP-DD MSA Form Factor • MSA Compatible Configuration and EEPROM • Programmable MSA memory pages • Custom memory maps • I2C Interface • DSP-based architecture • Test modules can be fitted with USB-C port for remote control/automation • Module management supported via standard plug-side I2C CMIS or nose-side USB-C • Static IP Protocol: communication via USBC or RJ45 Ethernet • Embedded electrical DSP chip • Three independent power heaters, dissipating up to 19.2 W (typ. 25 W total dissipation including DSP) • Two temperature sensors • Voltage sensor • Cut-off temperature preventing module overheating • Retimer + Equalizer • Pre-defined TX/RX EQ for variety of profiles • Supports 8x25, 26 and 53 GBd NRZ/PAM4 • Pattern generation and detection (PRBS7-58, 13Q, 15Q, 31Q, SSPRQ, etc.) • Advanced high resolution bit error tracking Outline The ML4062-ALB1-2A/B and ML4062-ALB1-2A/B112 active electrical loopback (ALB) acts as a fully featured QSFP-DD diagnostic interface and is used for testing QSFP-DD/QSFP-DD800 ports. The ALB includes a DSP chip with 8xTX channels and 8xRX channels. The DSP generates high speed electrical signals. TX channels transmit data from the transceiver to the host, while RX channels receive data from the host to the transceiver. Graphical User Interface • Dashboard controls for power spots • CMIS configuration • Fine-tuning of TX Equalization taps • PRBS generation/detection on per-channel basis • Additional features in development