[hpsdr] Demeter = HPSDR power supply(?)

[Roger Hayter]

In message <921231.26646.qm at web56501.mail.re3.yahoo.com>, Chris 
Albertson <chrisalbertson90278 at yahoo.com> writes
>***** High Performance Software Defined Radio Discussion List *****
>
>
>--- peter at gehughes.us wrote:
>
>> Just a thought
>>
>> While you are thinking about adding another card to the bus you might
>> want to look at how this might limit you in your choice of
>> cards..With
>> only 6 slots and upwards of 11 possible choices without even
>> considering a slot mounted Power Supply.
>
>If the PS is to have the ability to be shut down on command then
>somehow Ozy and Sasquatch need a way to communicate with the PS
>either by setting a voltage on a line or by sending a
>command over a serial interface.  The ability of the PS to send
>status information such as voltages and current implies the
>serial interface.  On a backplane-centric system
>it seems natural to use the backplane for communications.
>
>
There's a pin on the Molex connector specifically for providing standby 
5V power, and another for switching the ATX psu on and off - I keep 
meaning to check if these  pins is available on the ATLAS board, the 
latter pin must be connected to something to switch the PSU on.



-- 
Roger GW8BFO

 1181337276.0