ADLINK Technology COM Express Express-BASE7 User Manual page 38

JP2: PS_ON# Signal Source
For modules that connect the S3 signal, PS_ON# should always be set to SUS_S3# as source (even when S3
mode is disable in BIOS) For modules that do not bring out the S3 signal, PS_ON# should be set to SUS_S5# as
source.
Jumper Status
1-2 SUS_S3#
2-3 SUS_S5#
JP3: 5VSB to Module Source
With an AT power supply is connected to the Express-BASE7, JP3 can be used to provide 5VSB to the COM
Express module from the carrier board
Jumper Status
1-2 5VSB produced on carrier from Vcc
2-3 5VSB from ATX power supply
3-4 No 5VSB from module
JP34: 12V to Module during S3/S5
JP1-2 indicates no 12V to module at S3/S5 mode.
JP2-3 indicates there's always 12V input to module no matter the state of module.
Jumper Status
1-2 12V OFF in S3/S5 <<<<
2-3 12V ON in S3/S4
Note: <<<< indicates default setting
Power Strategies
Power Strategies
ATX PSU / ATX to COM Express module
ATX PSU / AT to COM Express module
AT PSU / ATX to COM Express module
AT PSU / AT to COM Express module
32
1
2
<<<<
3
1
2
3
JP1 JP2 JP3
1-2 1-2 2-3
2-3 1-2 3-4
1-2 1-2 1-2
2-3 1-2 3-4
JP34
1-2
2-3
1-2
2-3
Connectors, Pinouts and Jumpers