multilaneinc.com
1.
Introduction
The ML4062-MCB-LPBK is designed to provide an efficient and easy method of programming
and testing 400G QSFP-DD transceivers and active optical cables. It includes a complete user-
friendly GUI supporting all features defined by QSFP-DD MSA and simplifying configuration
processes to enable intuitive memory map programming and testing.
2.
Key Features
Supports two QDD modules
Tx and Rx lanes of both modules are looped-back on-board
Matched differential traces length
High performance signal integrity traces
I2C master driven from both on-board microcontroller or external pin headers
On-board pin headers for MSA low speed signals external control
Internal noise injection option through a programmable switching regulator
Power margining between 3.1V and 3.6V
On-board LEDs displaying MSA low speed signals states
Current Sense
Voltage Sense
Temperature Sense
USB interface
Ethernet interface
3.
ML4062-MCB-LPBK Hardware
The subsequent sections cover the essential parts in the hardware, for board operation and
testing.
3.1
Host Power-Up
To power up the ML4062-MCB-LPBK host, steps are as follow:
The host TOP is where the cages are mounted
Apply +5V DC to connector J5, in the order shown by silkscreen
Connect the host to the network using the Ethernet plug.
