The FuturePlus Systems FS4120 is a USB 2.0 and 1.1 serial bus analyzer for peripheral devices, hubs, and controllers. It provides complete analysis of 480 Mb/s (high speed), 12 Mb/s (full speed) and 1.5 Mb/s (low speed) bus activity. Data is decoded and displayed at any level of detail from protocol to binary.The unique 2-port design enables simultaneous testing of two hubs.
It is used with an Agilent Technologies logic analyzer. SMA connectors provide easy connection to an oscilloscope and pin jacks provide quick access for measuring current draw.
When combined with an oscilloscope this combination of protocol analysis, signal integrity, and current measurements provides today's leading edge designer with a complete suite of USB test tools.