Acroname Blog

 IntroductionAcroname's USBHub3c industrial USB Hub (plus the PD Logger add-on feature) can generate and capture arbitrary Vendor-Defined Messages (VDMs), enabling scalable automated testing, debugging, configuration, and deployment of USB-C devices.USB Power Delivery (USB PD) uses the…

This guide demonstrates how to automate DFU restores of Apple Silicon MacBooks using Acroname's USBHub3c, DFU Automator, and Apple Configurator. This setup lets you manage bulk macOS provisioning, restore bricked devices, and deploy custom OS images - in batches or asynchronously - via DFU mode.…

 We sometimes get questions about how to use the control port on our industrial USB Hubs.  Each hub works a little differently:USBHub2x4USBHub2x4 is our compact two-host, four-port USB 2.0 hub.No control portDefaults to automatic host switching between  host ports (port 0 priority)…

USBHub3c, combined with the External Load Feature, allows easy load testing and battery discharge of a variety of USB devices, including legacy Lightning, USB-OTG and USB-C ports, with and without USB Power Delivery (PD).Who is this Application Note for?This guide is intended for users who need to:…

The Problem: Inconsistent Serial Port Assignment for multiple devicesA recurring issue when working with multiple USB-to-serial connections is that the operating system does not consistently assign port names. This is especially painful for end-of-line (EOL) functional test customers who are…

Introduction to USB Power Delivery (USB PD) Testing with USBHub3cUSB Power Delivery (USB PD) sources need to support a broad range of power modes and sink devices.   Be sure that your source can reliably handle any sink it might encounter.The USBHub3c by Acroname is an industrial USB-C hub…

I. Introduction to USB Power Delivery (PD) Sink TestingUSB Power Delivery (USB PD) is a convenient way to power a variety of devices.  Since a USB PD sink device could be connected to any PD source, sinks need to work safely and correctly with any source they might encounter.The USBHub3c by…

More control than just on and off Enable and disable VBus, all Data, High Speed or Super Speed connections In addition to turning ports on and off, the USBHub3+ can also independently enable and disable Voltage and Data: Vbus All Data High Speed data (480 Mbps) Super Speed data (5 Gbps)…

How to monitor voltage and power with the GUI or Python Among other properties, we can view: Per-port Voltage Per-port Current Input Voltage Input Current Measuring voltage and current with HubTool If you haven't already, install HubTool, which is part of the Brainstem Dev…

CDP, SDP, and DCP The USBHub3+ can set each of its downstream ports to several power modes to support a range of devices. The supported modes are part of BC1.2 USB charging specification: Port mode Mode description Condition Maximum current (device limited) SDP…