MSI MS-6182 User Manual page 27

The JMDM1 connector is for used with Modem add-on card that supports
the Modem Wake Up function.
1
JMDM1
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)
5
PIN
1
2
3
4
5
2-22
SIGNAL
NC
GND
MDM_WAKEUP
NC
5VSB