Using the USB output to trigger a 'voltage trigger' on a Panamax

@Itch

Sorry for the late reply.
RS250 does not have trigger in function. It is not possible to connect to the Panamax you have.

Thank you

I appreciate the response but you didn’t answer my question.
I am fully aware that the unit doesn’t have a trigger out.
Please review my question and consult your technical department if necessary.

Thank you.

I found a dirtyish workaround for powering on other equipment when my Rose RS150B is on (might work for RS250 too?). It works like the following:

  • When the Rose is “on”, it opens up TCP port 8192 for some service (I don’t even know what it’s used for)
  • I have a python script running in my server which polls the port 8192 if it’s open or not (running roon server, which is not necessary for this to work)
  • I have an arduino plugged in to the server through USB, which is operated by the python script through USB serial
  • I soldered wires from three arduino pins (gnd/pin10/pin12) to two stereo miniplugs that control the power on/off and lights on/off on my two McIntosh monoblocks. 5V is enough to trigger the Macs, if 12V is needed you need to beef up the voltage.

The code is pretty simple and I agree that the solution is pretty dirty, but it works and I don’t have to do anything else than power on the Rose. The script notices that it’s up and powers the amps. Seems to be working for now at least :smiley:

If anyone is interested in more details, please let me know!

1 Like

Thank you for your input!

I won’t be running a server in my set up.

I do like your creativity.

…not sure why I haven’t received an applicable response from the manufacturer tech team.

A bit concerning

@Itch

I apologize for the late reply.

We did not have a Panamax5400 (power conditioner), so we tested it by connecting it to another power conditioner.
USB AUDIO OUT can be used as a power source only when the power of the RS250 is on.
When the power of RS250 is completely OFF or in Standby mode, it cannot be used as a power source.

Again, I apologize for the late reply.

Thank you

This is great to know.

Thank you!

KISS= keep it simple stupid
So come out of one of the 5v usb’s on the rs150b with a 5v to 12v step up , into a 5.5mm to 3.5mm mono jack , works a treat . KISS
This works on the 150b to

Thank you for your solution!

Thanks for the confirmation and @Itch for bringing the point and @joppie for the solution.

@ROSEHAN, is there a way you can program in a future update that the 5V usb stop sending power on stand by?

@OmJimenez

Please follow the step below
Rose device–>Settings–>System settings–>USB/SSD Power activation in stanby mode

Thank you

Thanks @ROSEHAN for the response!

Yes, I tried that setting initially but it didn’t work. I tried it again and still not working. The USB power is only going off when the system is shutdown not in stand by.

Based on the instruction on the screen I understand this setting should be in off, but I tried the 3 of them (also “on” and “auto”) just in case. I also rebooted the system.

Is there any other setting I should activate?

Hello,

@ROSEHAN , any suggestion?

@OmJimenez

Hello

It is correct to use USB/SSD Power activation in standby mode to OFF.

What part do you think that it is not working?

Thank you

Hi,

Based on the programming and your suggestions when in standby if you activate this option it should stop sending power thru the USB so it disables the trigger per this conversation thread, however the power continues.

It is only disabling the USB power when you do the complete shutdown of the device.

So the option of USB/SSD Power activation in standby mode to OFF seems to not be working.

@OmJimenez

USB/SSD Power activation in standby mode is OFF, how do you know that the power continues?
Can you please tell me?

Thank you

@ROSEHAN The intention of this particular thread was to look for a solution to use the USB ports as Triggers for an external device (in my case an amp) to overcome the fact that the RS150 doesn’t have that option.

So I followed the guidance on this thread and worked as intended, but when you power off completely the device, not on standby.

Power off = USB power is disabled therefore the trigger shuts down the amps.

Standby Mode = USB power seems to keep turned on since the amps continue on as well

@OmJimenez

I decided to buy a Niles CS-12v.
It is a fantastic 12v trigger.
Unfortunately they are only available used.

Set up an eBay alert for one.

Hi @Itch , thanks for the suggestion! Looking at the manual it should work on this situation since you can adjust the residual power (stand by) drawn by the RS150.

I did installed the suggestion by @joppie and has worked really well, with this issue that it seems the RS150 continues to send power thru the UOS in standby mode despite turning off the function.

Let’s see if @ROSEHAN can figure out what the issue may be, if not the niles (or a similar one) may be the option.

Regards,

@OmJimenez

Regarding this question, I will answer you.

Even if USB/SSD Power activation in standby mode is set to OFF, the power supply is not cut off immediately in Standby mode.
However, in Standby mode, RS150b gradually loses power within 5 minutes.
The power supply is not completely cut off. If you set USB/SSD Power activation in standby mode to OFF and switch to Standby mode, 5.87W of power flows. Even if the power is turned off completely, the power of 0.3W is maintained as long as the circuit and cable are connected.
Set USB/SSD Power activation in standby mode to OFF, switch to Standby mode, wait 5 minutes and let us know what happened.

Thank you

1 Like

This solution doesn’t work with an RS150B. The USB ports on the RS150 don’t behave like a trigger because power is never interrupted (unless you physically unplug and reinsert the USB cable). There are options to control whether a USB port is on, off, or auto during standby, but that only applies to the data connection. Power is never affected by this setting.

@ROSEHAN Are there any third party solutions that could address this?