MSI MS-6135 User Manual page 33

The JMODEM connector is for use with Modem add-on card that supports
the Modem Wake Up function.
1
5
JMODEM
Note: Modem wake-up signal is active "low".
Note: To be able to use this function, you need a power supply that
provide enough power for this feature.
(power supply with 750mA 5V Stand-by)
PIN
1
2
3
4
5
2-28
SIGNAL
NC
GND
MDM_WAKEUP
NC
5VSB