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Remote input to initiate a Shutdown

Posted: Tue Mar 04, 2014 4:01 am
by TimJ
I need a hardware input to signal the Intense PC to do a shutdown. The system it is installed in can provide a contact closure or voltage presence or absence to initiate the shutdown. I hardwired a Micro Shutdown Controller from MP3car to the motherboard of a test system. Unfortunately the contact closure of the MicroShutdown controller relay sometimes holds too long and the power intermediately shuts off. Any sugestions on this would be greatly appreciated.

Re: Remote input to initiate a Shutdown

Posted: Wed Mar 05, 2014 2:40 pm
by mbirger
Do you work with open chassis or enclosed system?
Do you want to connect a remote power button?
Please explain the system and what you are trying to achieve?

SW3 (pins 2,3) is a power push button which operates PS_ON_SW# signal responsible for system power on/sleep/off, but it of course requires soldering to it.

Re: Remote input to initiate a Shutdown

Posted: Wed Mar 05, 2014 3:29 pm
by TimJ
Sorry for not being more clear. We have a enclosed system. We do currently solder to the power pins to do a hardwired / shutdown. Is there another way to detect a switch contact or voltage input , to do a shutdown, or possibly changing the length of time the power button is held to do a shutdown. We currently have the power settings configured for a shutdown on the power button press. Sometimes the shutdown controller presses the power button a bit too long , causing a power off instead. This is very bad for our Database in the system. I know we should be fixing the shutdown controller , but it is a commercial product and cannot be changed. Just grasping for ideas. Thanks

Re: Remote input to initiate a Shutdown

Posted: Tue Mar 11, 2014 10:14 am
by mbirger
Unfortunately not. There is no way to change this time duration.
Two ways to initiate a shutdown:
1. As explained earlier - Micro-controller GPIO asserts PS_ON_SW# signal responsible for system power on/sleep/off - easier in an open chassis platform.
2. Micro-controller GPIO to control external relay switch, that will cut power to the system. Of course, this is not graceful shutdown.