AS4021M-T2R+/4021M-82R+ User's Manual Wake-On-Ring Wake-On-Ring Pin Defi nitions (JWOR) The Wake-On-Ring header is desig- nated JWOR. This function allows your computer to receive and "wake- up" by an incoming call to the modem when in suspend state. See the table on the right for pin defi nitions. You must have a Wake-On-Ring card and cable to use this feature. Pin# Defi nition 1 Ground (Black) 2 Wake-up Power Supply I 2 C Header The PWRI 2 C header is for I 2 C, which may be used to monitor the status of the power supply, fans and system temperature. See the table on the right for pin defi nitions. SMBus Header The header at SMBus is for the System Management Bus.
Connect the ap- propriate cable here to utilize SMB on the system. See the table on the right for pin defi nitions. Power Supply Alarm Header Connect a cable from your power supply to JPWF to provide you with warning of a power supply failure. The warning signal is passed through the PWR_LED pin to indicate a power failure. See the table on the right for pin defi nitions. Note: This feature is only available when using redundant power supplies.
5-18 I2C Header Pin Defi nitions (PWRI2C) Pin# Defi nition 1 Clock 2 Data 3 PWR Fail 4 Gnd 5 +3.3V SMBus Header Pin Defi nitions (SMBus) Pin# Defi nition 1 Data 2 Ground 3 Clock 4 No Connection Power Supply Alarm Header Pin Defi nitions (JPWF) Pin# Defi nition 1 P/S 1 Fail Signal 2 P/S 2 Fail Signal 3 P/S 3 Fail Signal 4 Reset (from MB)