Fujitsu MS-6191 User Manual page 30

Mainboard MS-6191
2.19 Modem Wake Up Connector: JMODEM
The JMODEM connector is for use with Modem add-on card that supports
the Modem Wake Up function. To use this function, you need to set the
"Modem Ring Resume" to enable at the BIOS Power Management Setup.
JMODEM
Note: Modem wake-up signal is active "low".
PIN SIGNAL
1 NC
2 GND
3 MDM_WAKEUP
4 NC
5 5VSB
30