RS150B USB power in standby mode

#1

Question: Can any RS150B ports be used as a Trigger?

Problem: RS150B USB-A ports do not power down when in Standby mode.

I have both the RS150B and RS250A.

On the RS250A, I use the USB-A ports to Trigger my power amplifier. When the RS250A is put into Standby the power on the USB-A drops from 5V to 0V which can be used to Trigger my power amplifier.

I have the “USB Power activation in Standby Mode” set to Off in both devices. By comparison, the RS150B maintains 5V on the USB-A ports (labelled “USB 3.0” on the back of the RS150B) when in standby mode 5V power, whereas the RS250A cuts the power to the USB-A ports.

The problem with the RS150B is that the USB-A ports can’t be used for a Trigger unless they powers down in Standby.

This is very annoying.

Are there any other ports or methods on the RS150B which can be used as a Trigger? I’m wondering if the USB-B or the USB-C ports might power down when in Standby mode such that they can be used as a Trigger.

Anyone know?

#2

I believe the options are to power down the USB A ports not the USB-B port (USB in) when in standby.

#3

Sorry Smegel, I realised that muddled the name of ports in my original text. I edited my original text to clarify.

#4

@chu.d.moo

Unfortunately, the RS150B does not support any ports that can function as a trigger output.
Unlike the RS250A, the USB-A ports on the RS150B remain powered (5V) even in Standby mode, and this behavior cannot be changed through the current firmware settings.

Additionally, the USB-B and USB-C ports are designed only for data communication and do not change their power state when the device enters Standby, so they also cannot be used as trigger outputs.

We understand that this difference between models can be inconvenient. Your feedback has been shared with our software and hardware development teams for future consideration in upcoming products or updates.