USB Switch Module 

Features

  • Connect/dis-connect USB port(s) of UUT(s).
  • ​Can also be used as a 2:1 or 1:2 USB multiplexer
  • Fully USB2.0 (480Mbps) compatible
  • ​Full access to ID signals on all ports
  • ​Supports USB 5V supplied from host or from test system
  • ​USB host 5V current shunted with integrated 100mOhm
  • ​Shunted current directly measurable by ADC/DAC card
  • ​Ultra-compact
  • Low cost
  • Simply controlled by any standard IO
  • Easily mounted & supplied with standoffs

About

 The USB Switch Module's primary purpose is to isolate the USB2.0 port of a UUT whilst the UUT is un-powered. The module also has the ability to multiplex a single host USB2.0 port to two separate slave USB2.0 ports, giving the ability to share the host USB between two UUT devices. 

The module also provides options for the UUT's USB2.0 port to receive 5V power either from the host or from the test system.The latter case could be used to simulate a USB2.0 host being turned on/off, as well as other test scenarios such as under/over-voltage and current measurement. When using the host 5V, the 5V current consumption can be measured across an integrated 100mOhm sense resistor.

The module uses robust Mini USB Type B connectors, hence multiple 'off the shelf' cable assemblies are available to suit any wiring requirement. The Mini Type B connectors include ID pins, for OTG applications, which are all made available for the correct configuration for the test application and UUT.

The compact dimensions (30mmx40mm including connectors) make it feasible  to place the module very close to the UUT and is suitable for use on Connection Cards as well as Interposers.
Please see the below typical application schematic: