Kontron 820155 DC-DC - Manual (Page 5)

820155 DC-DC Supply 10-32Vin 90W
KTD-00740-C Public User Manual Date: 2008-04-24 Page 5 of 9
Functional/Connector description
+V (J1) is for 10 – 25V power input (Vin) with reference to –V (J4).
-V (J4) is Ground reference to +V (J1).
SW (J3) Switch On/Off signal input to be used in Battery Driven Application Mode.
This input shall be left unconnected when the PSU is used in Standard ATX Supply Mode (no Jumpers
installed in J10). As long as Vin is available the +5VSB will be present and it is up to the motherboard to turn
on and off motherboard.
This input shall be used in Battery Driven Application Mode (1 – 3 jumpers installed in J10). The SW input is
used to tell the PSU to automatically turn on the motherboard and later to turn off again after a selectable
delay (seconds, minutes or hours range) by automatically start motherboard shutdown procedure. When the
motherboard is shutdown it is possible that also the +5VSB will turn off after a certain delay
SW State Action description
OFF 0 Nothing happens. (Waits for SW to be turned to the ON-position).
ON 1a Waits for 2 seconds.
1b Turn on the 5Vsb rail and wait 1 second.
1c
Generate a Power On Button pulse on J8 and J9. Then the Motherboard shall turn on the
supply by activating the PSON # signal (ATX signal). If J8 or J9 are not used for Power On
Button, then Motherboard waits for Power On Button activated or it turns on automatically
if selected in BIOS to do so.
1d Wait for the SW to turn OFF
OFF 2a
Waits for 5 sec., 30 sec, 30 min. or 3 hours (OFFDELAY) depending on the selected
Battery Driven Application Mode (selected by Jumpers in J10).
If SW is turns ON before the delay elapse then go to state 1d
2b
Generate a Power On Button pulse on J8 and J9, so that the Motherboard will initiate the
Shutdown Procedure.
Please notice that if J8 or J9 is not connected to Power Button input on Motherboard then
Motherboard Shutdown Procedure will not be initiated.
2c
Waits for 45 sec., 2 hours or “Forever” (5VSB Off Delay) depending on the selected
Battery Driven Application Mode (selected by Jumpers in J10).
When “Forever” is selected then the input voltage is monitored and if it gets below 11V for
more than one minute, the “Forever” delay will terminated until the input voltage gets
higher than 11V.
Please notice that if the Motherboard is rebooted by manual Power On Button, then all
power lines will be turned off, as selected by the 5VSB Off Delay, without the Shutdown
procedure has been carried out.
If SW is turns On before the delay elapse then go to state 1a
If Input Voltage is removed then go to state 0.
3
Total Off mode. Mother board can not be turn on by Push Button. When SW goes ON
then go to state 1a
State 0.
Off mode
Input Voltage On
State 1.
On mode
(unlimited)
SW On
Motherboard
On *
State 2.
Off mode
(limited)
SW Off
Motherboard
On *
SW On
Motherboard
Off
SW On
5VSB Off
State 3.
Total Off
mode
* = On/Off controlled by motherboard